HMRC compliance checks can begin with a short request for invoices and develop into a detailed review of VAT registration, sales, imports, exports, input VAT recovery and accounting records. For an overseas business, the main risk is often not deliberate non-compliance. It is the inability to prove that the VAT treatment matches the underlying transactions.

HMRC does not approve a VAT figure simply because it appears commercially reasonable. The business must show how the figure was calculated, which records support it and why the chosen VAT treatment was correct.

That distinction matters.

A company may have paid broadly the right amount of VAT but still face penalties, repayment delays or a prolonged enquiry because its records are incomplete. Equally, a substantial VAT repayment may be released without difficulty when the business can present a clear audit trail from the original transaction to the submitted VAT Return.

For overseas companies, HMRC compliance checks often expose weaknesses that were created long before the officer made contact. The wrong legal entity may appear on invoices. A freight forwarder may have used an incorrect VAT or EORI number. Amazon settlement payments may have been treated as turnover. Export evidence may no longer be available. Postponed import VAT statements may never have been downloaded.

The correct response therefore starts with understanding what HMRC is really testing.

What are HMRC compliance checks?

HMRC compliance checks are reviews carried out to confirm that a business has declared, paid and reclaimed the correct amount of tax. A VAT check may examine one transaction, one VAT Return, a repayment claim, a registration application or several years of trading, depending on the risk identified.

HMRC may conduct the check by letter, telephone, online correspondence, video meeting or a visit to business premises. It may request documents, explanations, accounting data and access to records.

An HMRC compliance check is sometimes called a tax enquiry, VAT inspection, compliance review or VAT assurance visit. These expressions can describe different procedures, but the commercial issue is the same: HMRC wants evidence that the business’s VAT position is correct.

A compliance check does not automatically mean HMRC believes the company has committed fraud. Many checks begin as routine verification.

For example, a newly registered importer may submit its first VAT Return showing a £70,000 repayment. The business has imported stock, paid warehouse charges and incurred launch costs, but it has not yet generated significant sales. That commercial explanation may be entirely genuine.

However, HMRC sees a new VAT registration asking for a substantial payment from public funds. It will often want to confirm that:

• the business exists;
• the activity is genuine;
• the purchases were made by the registered company;
• the goods or services support taxable business activity;
• the VAT invoices are valid;
• the import documents name the correct party;
• the repayment has been calculated correctly.

HMRC’s current compliance guidance confirms that a check may involve document requests, meetings and inspections of premises, assets and records. The business must also continue filing Returns and making payments while the check remains open.

The scope can remain narrow. However, it can also expand.

If HMRC asks about one purchase invoice and discovers that it belongs to another group company, the officer may review the entire input VAT claim. If an export sample lacks evidence of removal, HMRC may request evidence for every zero-rated export in the period.

This is why the first response should never be prepared casually.

Why does HMRC carry out compliance checks?

HMRC carries out compliance checks when it wants to verify a tax position, investigate an unusual pattern or resolve an inconsistency. Common triggers include large VAT repayments, low VAT liabilities, sudden changes in turnover, repeated corrections, late registration, missing Returns and figures that do not match other information available to HMRC.

Some businesses assume that HMRC selects companies only when it already holds evidence of an error. That is not correct.

HMRC can check a Return or registration because the figures require verification. Nevertheless, the nature of the questions often reveals the underlying concern.

A request for the ten largest purchase invoices usually indicates that HMRC is testing an input VAT claim. Questions about payment processors and marketplace accounts suggest concern about undeclared sales. Requests for customs declarations and postponed import VAT statements normally point towards import VAT recovery.

The following patterns often lead to HMRC compliance checks:

• a large repayment on the first VAT Return;
• repeated repayment Returns;
• high turnover with little output VAT;
• low turnover with substantial input VAT;
• a sudden move from payment Returns to repayment Returns;
• a significant change in VAT payable without an obvious commercial reason;
• late VAT registration followed by retrospective claims;
• repeated VAT Return corrections;
• long periods of nil Returns;
• sales declared at figures that do not match marketplace data;
• high levels of zero-rated exports;
• import VAT claims that do not match customs records;
• VAT Returns filed after repeated reminders;
• manual adjustments that recur every quarter;
• claims involving pre-registration expenditure;
• a business model that appears inconsistent with the VAT treatment.

HMRC can also compare the company’s declarations with information from other sources. These may include Companies House records, customs systems, marketplace information, previous tax filings and material published on the company’s website.

Imagine that a Shopify store states publicly that it has dispatched 100,000 orders to British customers. Its VAT Returns show only modest UK sales. There may be a valid reason. Perhaps the website figure covers worldwide orders or several legal entities.

However, the inconsistency creates a reasonable question.

The strongest response would explain the difference and support it with data. The weakest response would deny that the website is relevant without reconciling the figures.

Are HMRC compliance checks random?

Some HMRC compliance checks arise from routine risk assessment rather than a known error. However, a business should not assume that a check is random. The wording of HMRC’s questions, the periods selected and the documents requested often indicate the specific VAT risk that the officer wants to examine.

The opening of a compliance check does not prove that VAT has been underpaid. It means HMRC considers that further verification is justified.

In practice, the distinction between a random and risk-based check is less useful than many businesses expect. The company must still respond properly.

A business should therefore ask four questions:

1. Which VAT periods are being checked?
2. Which figures or transactions concern HMRC?
3. Why might those figures appear unusual?
4. What evidence would allow an independent officer to verify them?

The answer may be straightforward.

A manufacturer may have reclaimed unusually high input VAT because it purchased a new production line. A SaaS company may have low UK output VAT because most customers are overseas businesses. An Amazon FBA seller may report a large increase in turnover after moving stock into a UK fulfilment centre.

Each position can be correct. The business must still provide evidence.

An experienced adviser reads an HMRC letter diagnostically. The request itself often reveals more than the covering explanation.

For example:

• questions about the effective date of registration suggest possible late registration;
• requests for customer invoices suggest concern about output VAT;
• requests for bank statements may indicate doubts about genuine expenditure or sales completeness;
• questions about directors, warehouses and suppliers may test whether the business activity is genuine;
• requests for import declarations may indicate concern about importer status;
• questions about overseas customers may test zero-rating or place-of-supply treatment.

Understanding that purpose helps the business prepare a focused response.

How do HMRC compliance checks begin?

HMRC compliance checks normally begin with a letter, telephone call, secure message or request for evidence. HMRC should explain what it wants to check, which information it requires and when the business must respond. Some VAT repayment reviews use a dedicated online evidence-submission process.

The opening communication should be read in full.

It may identify:

• the relevant VAT periods;
• the Return or transaction under review;
• the information required;
• the response deadline;
• the HMRC case reference;
• the officer handling the enquiry;
• any compliance factsheets that apply.

Do not rely on the email subject line or the first paragraph. Important details often appear later in the letter.

The business should also confirm that the communication is genuine. Fraudsters sometimes imitate HMRC correspondence, particularly when a VAT repayment is expected.

Check the officer’s details, reference numbers and communication channel. Do not provide banking information in response to an unverified request.

Once the communication has been verified, appoint one person to coordinate the response. This can be a director, finance manager or authorised VAT adviser.

That person should control:

• correspondence with HMRC;
• collection of documents;
• explanations from staff;
• review of the VAT calculations;
• submission of evidence;
• tracking of deadlines;
• records of what has been sent.

A fragmented response creates risk. The warehouse manager may describe the company as the importer. The accountant may say that the customer imported the goods. The director may state that the courier handled everything.

All three people may be acting honestly. However, HMRC receives three different versions of the transaction.

What powers does HMRC have during a compliance check?

HMRC can request information and documents that it reasonably needs to check a tax position. It can also arrange meetings, inspect business premises and issue formal information or inspection notices. A business may question an irrelevant or disproportionate request, but it should never ignore a valid formal notice.

HMRC often begins with an informal request. That does not mean the company should treat the request as unimportant.

In most cases, cooperation provides the fastest route to closure. However, cooperation does not require a business to send every document it has ever created.

The request should be reviewed for:

• relevance;
• scope;
• time period;
• legal entity;
• availability;
• proportionality;
• confidentiality;
• possible legal privilege.

If a request appears unclear, ask the officer to explain what HMRC needs and why.

For example, HMRC may request “all sales records”. A multinational business might hold millions of transactions. A transaction-level export for the relevant VAT periods may satisfy the requirement more effectively than an uncontrolled data dump.

If HMRC needs specific invoices, customer records or marketplace reports, the company should provide them in an accessible form.

HMRC’s compliance factsheet states that businesses can contact the officer if they do not understand a request, cannot comply or believe that the information is unreasonable or irrelevant. However, HMRC can use formal powers where it cannot obtain the information by agreement.

The sensible approach is neither automatic refusal nor unlimited disclosure.

It is a proportionate, documented response that gives HMRC what it reasonably needs to verify the VAT position.

What documents can HMRC request?

HMRC can request records that support VAT registration, taxable sales, VAT recovery, imports, exports and the preparation of VAT Returns. Typical requests include invoices, VAT accounts, transaction listings, bank statements, contracts, customs documents, marketplace reports, stock records, export evidence and Making Tax Digital records.

The exact evidence depends on the issue under review.

HMRC may ask for:

• the submitted VAT Return;
• the detailed VAT account;
• sales and purchase ledgers;
• sales invoices;
• purchase invoices;
• credit notes;
• bank statements;
• merchant processor reports;
• Amazon settlement reports;
• Amazon VAT transaction reports;
• Shopify order exports;
• Stripe or PayPal records;
• supplier agreements;
• customer contracts;
• freight invoices;
• customs declarations;
• C79 import VAT certificates;
• postponed import VAT statements;
• bills of lading;
• airway bills;
• export declarations;
• delivery records;
• warehouse intake reports;
• stock movement reports;
• evidence of payment;
• evidence supporting zero-rating;
• reverse charge calculations;
• accounting software reports;
• explanations of manual VAT adjustments.

Businesses often make one of two mistakes.

The first is sending too little. The company provides a summary spreadsheet when HMRC asked for source records.

The second is sending too much. It uploads thousands of documents without an index or explanation.

Neither approach helps the officer.

A well-prepared submission connects each requested item to the relevant VAT figure.

For example:

• the VAT Return shows £48,000 in Box 4;
• the VAT account identifies the transactions making up that figure;
• the purchase ledger provides invoice-level detail;
• the invoices support the VAT charged;
• bank records show payment;
• contracts and delivery evidence show that the supplies were made to the registered business.

That is a complete audit trail.

Why does HMRC ask for bank statements?

HMRC asks for bank statements to test whether invoices represent genuine transactions, whether declared sales reconcile with receipts and whether the VAT-registered business funded the expenditure. Bank statements support the commercial evidence, although they do not replace valid VAT invoices or other required records.

Some directors react defensively when HMRC asks for bank statements. They believe the request suggests an accusation of dishonesty.

Usually, HMRC is following the money.

A purchase invoice proves that a document exists. It does not automatically prove that:

• the supply occurred;
• the claimant bought it;
• the claimant paid for it;
• the goods or services were used by the claimant;
• the invoice was not cancelled;
• the supplier did not issue a credit note;
• another company did not receive the supply.

Consider an overseas wholesaler that reclaims £30,000 of VAT on stock purchased from a UK supplier.

HMRC may check:

• which company signed the order;
• which company appears on the invoice;
• which company paid the supplier;
• where the stock was delivered;
• which company recorded the inventory;
• which company later sold the goods.

If all evidence points to the VAT-registered wholesaler, the bank statement strengthens the claim.

If another group company paid the invoice, received the goods and recorded the inventory, HMRC may question why the claimant recovered the VAT.

HMRC currently requests original bank statements as part of the standard evidence package for certain VAT repayment checks. It may also ask for the detailed VAT account and the ten highest-value purchase invoices.

The correct response is to reconcile the statements before submitting them. Do not send raw banking data and assume that HMRC will work out the connection.

HMRC compliance checks during VAT registration

HMRC compliance checks can begin before a VAT number is issued. HMRC may ask an overseas business to prove its identity, commercial activity, intended UK supplies, registration date and connection with the United Kingdom. Weak or inconsistent evidence can delay registration or lead to further questions.

Overseas businesses sometimes treat VAT registration as a simple administrative form. HMRC views it differently.

A VAT number allows a business to charge UK VAT, submit VAT Returns and potentially reclaim substantial amounts of VAT. HMRC therefore needs to establish that the applicant is genuine and that registration is appropriate.

Questions may cover:

• the company’s ownership and directors;
• its business activities;
• products or services supplied;
• expected UK turnover;
• UK customers;
• suppliers;
• contracts;
• websites;
• marketplaces;
• warehouses;
• fulfilment providers;
• imports;
• proposed registration date;
• bank accounts;
• pre-registration expenditure.

A new Amazon seller may state that it intends to use FBA in the UK. That statement alone proves very little.

HMRC may expect supporting evidence such as:

• an active Amazon seller account;
• a fulfilment arrangement;
• purchase orders for stock;
• shipping plans;
• supplier invoices;
• product listings;
• a UK warehouse agreement;
• customer orders;
• commercial forecasts.

The evidence should tell one coherent story.

If the application states that sales began in January, while the first invoice and warehouse record show April, HMRC will ask which date is correct.

If the company says it imports the goods but the customer appears as importer, the supply chain needs further review.

Businesses preparing to enter the British market should examine their UK VAT registration position before stock moves or sales begin. Correcting the effective date after trading has started can create retrospective liabilities and customer-pricing problems.

Why VAT registration checks cause delays

HMRC registration delays often arise because the evidence is incomplete, inconsistent or commercially unclear.

Common problems include:

• documents in several company names;
• an inactive website;
• no evidence of intended trade;
• a bank account belonging to a director;
• invoices addressed to a trading name rather than the company;
• no explanation of the supply chain;
• unclear stock ownership;
• conflicting commencement dates;
• marketplace accounts held by another legal entity.

Sending more documents does not always solve the problem. The business needs to explain what the documents prove.

A concise supply-chain summary can be particularly useful. It should state who buys the goods, who imports them, where they are stored, who sells them and when ownership passes.

HMRC compliance checks on VAT repayment claims

VAT repayment claims receive close attention because HMRC is being asked to pay money to the business. Checks are especially common for first Returns, new registrations, importers, property transactions and businesses whose input VAT is high compared with their declared sales.

A VAT repayment does not imply wrongdoing. Many legitimate businesses regularly receive refunds.

Exporters may incur UK VAT on costs but charge no UK output VAT on qualifying exports. Importers may build inventory before sales begin. Manufacturers may purchase machinery. A new company may incur professional and setup costs before generating revenue.

Nevertheless, HMRC will usually want to understand why the repayment arose.

Current HMRC guidance for repayment verification may require:

• the VAT registration number;
• the compliance reference;
• details of the main business activity;
• the date trading began;
• the VAT rates used;
• VAT scheme information;
• details of who prepared and filed the Return;
• the Making Tax Digital software used;
• the detailed VAT account;
• the ten highest-value purchase invoices;
• original bank statements;
• import and export evidence where relevant.

For a first VAT Return, HMRC may also request evidence supporting VAT recovered on goods and services purchased before registration.

A company should prepare this evidence before submitting a large claim.

A realistic repayment scenario

A US manufacturer registers for UK VAT and imports £600,000 of stock into Britain. It uses postponed VAT accounting and incurs UK VAT on storage, consultancy and fulfilment services.

Its first Return shows:

• £120,000 of postponed import VAT in Box 1;
• £120,000 reclaimed in Box 4;
• £18,000 of additional input VAT;
• limited output VAT because sales began near the end of the quarter.

The £18,000 repayment may be correct. However, HMRC will probably want to see:

• the monthly postponed import VAT statements;
• customs declarations;
• evidence that the company owned the stock;
• invoices for warehouse and consultancy services;
• proof of payment;
• the VAT account;
• evidence of intended taxable sales.

If those records are ready, the check may progress efficiently.

If the freight agent used another company’s EORI number and the invoices belong to a parent company, the repayment becomes much harder to defend.

Businesses expecting a repayment should ensure that their UK VAT Returns can be reproduced from transaction-level records.

How HMRC checks sales and turnover

HMRC checks whether the business has recorded all taxable sales at the correct value and in the correct period. For eCommerce businesses, HMRC may compare VAT Returns with marketplace reports, payment processor data, bank receipts, customer invoices, refunds and warehouse records.

Sales completeness is one of the most important areas in HMRC compliance checks.

The core question is simple: has the business declared every supply for which it was responsible?

The accounting can be complicated.

Amazon, Shopify, Stripe, PayPal and other platforms may deduct fees before transferring money. Therefore, the amount received in the bank is not usually the same as taxable turnover.

An Amazon seller might have:

• gross customer sales of £150,000;
• refunds of £10,000;
• Amazon fees of £22,000;
• advertising costs of £8,000;
• fulfilment charges of £12,000;
• a bank settlement of £98,000.

If the accountant records the £98,000 bank deposit as sales, turnover will be understated.

The correct VAT calculation must begin with customer transactions. Marketplace fees and other deductions are separate expenses.

The same problem arises with Shopify. Shopify may record the orders, while Stripe, PayPal and other gateways collect payment. Refunds may pass through a different system. Chargebacks may be recorded outside the sales ledger.

HMRC may therefore ask the business to reconcile:

1. customer orders;
2. cancelled orders;
3. refunds and credit notes;
4. gross sales;
5. VAT charged;
6. payment processor receipts;
7. platform fees;
8. net bank deposits;
9. figures reported on the VAT Return.

Businesses operating several sales channels should review the wider requirements for UK VAT for eCommerce sellers.

Timing errors in sales

A sale may also appear in the wrong VAT period.

Common causes include:

• using the payment date instead of the tax point;
• recording invoices when cash reaches the bank;
• delayed marketplace reports;
• backdated credit notes;
• exchange-rate differences;
• goods dispatched near a quarter end;
• deposits recorded incorrectly;
• sales imported twice or omitted during software integration.

Timing errors may reverse in a later period. However, the original Return can still be inaccurate.

A good VAT reconciliation identifies both permanent errors and timing differences.

How HMRC checks input VAT claims

HMRC checks whether input VAT was claimed by the correct legal entity, supported by valid evidence and incurred for taxable business purposes. It may also examine private use, exempt activities, pre-registration expenditure, unpaid invoices, credit notes and claims involving connected companies.

Input VAT is not recoverable simply because the expenditure helped the wider business group.

HMRC looks at the specific VAT-registered person.

The officer may ask:

• who ordered the goods or services;
• who signed the contract;
• who received the supply;
• who appears on the invoice;
• who paid the supplier;
• how the cost supports taxable activities;
• whether the supplier issued a credit note;
• whether the invoice meets VAT requirements.

International groups often create problems by using one company to pay another company’s expenses.

For example, a German parent may pay the launch costs of its UK subsidiary. The consultants invoice the parent, but the UK company later reclaims the VAT because it benefited from the advice.

That claim may fail if the UK company was not the recipient of the supply.

The commercial benefit is relevant, but it is not the only test.

Invoice problems

HMRC often challenges claims where invoices:

• name the wrong company;
• use only a brand name;
• show an invalid VAT number;
• do not identify the supply;
• are marked as pro forma;
• duplicate another invoice;
• were later cancelled;
• include VAT that should not have been charged;
• relate partly to private or exempt use.

A card receipt or payment confirmation may support a transaction. However, it does not always replace a valid VAT invoice.

Where the document contains a genuine error, the business should normally ask the supplier to issue a corrected invoice. It should not alter the supplier’s document itself.

Pre-registration input VAT

A newly registered company may be able to recover qualifying VAT incurred before registration, subject to the relevant conditions and time limits.

However, HMRC will want to see that:

• the company bought the goods or services;
• the expenditure relates to its taxable business;
• the goods remain on hand or were used appropriately;
• valid invoices exist;
• the amount has not been claimed elsewhere.

For stock purchased before registration, HMRC may ask for a stock account showing the description, purchase date, quantity, cost and any later sale or disposal.

This is a common weakness in first VAT Returns. Businesses calculate a single pre-registration figure but cannot show how it was produced.

HMRC compliance checks on imports and import VAT

When checking import VAT, HMRC examines who imported the goods, who owned them, whose VAT and EORI details appeared on the declaration and whether the VAT Return matches official customs evidence. Paying a courier or freight invoice does not automatically create the right to recover import VAT.

Import VAT errors are among the most expensive problems faced by overseas businesses.

The commercial chain may involve:

• an overseas supplier;
• an overseas seller;
• a freight forwarder;
• a customs agent;
• a UK warehouse;
• a marketplace;
• a UK customer.

Unless the responsibilities are agreed before shipment, the customs declaration may not support the intended VAT treatment.

HMRC will normally examine:

• the importer named on the declaration;
• the EORI number used;
• the VAT number used;
• ownership of the goods;
• the right to dispose of the goods;
• the customs value;
• the import date;
• the import VAT evidence;
• the VAT Return period;
• the later sale of the goods.

The business should be able to connect the purchase order, supplier invoice, payment, shipping record, customs declaration, warehouse receipt and sales record.

For a detailed analysis, see UK import VAT recovery.

Postponed VAT accounting

Postponed VAT accounting allows an eligible VAT-registered importer to account for import VAT through the VAT Return instead of paying it at the border.

However, PVA does not remove the VAT. It changes the accounting method.

A fully taxable business will normally enter:

• postponed import VAT in Box 1;
• the recoverable amount in Box 4;
• the net import value in Box 7.

The figures should usually come from the monthly postponed import VAT statement. The business should download and retain those statements.

A common error occurs when the customs agent says that PVA was used, but the import does not appear on the statement. Another occurs when the statement shows imports that the company does not recognise.

Neither issue should be ignored.

The customs entry, VAT statement and accounting records must be reconciled.

VAT Number UK’s import VAT analysis explains that recovery depends on the appropriate recovery route, the right to dispose of the goods, business use and evidence linking the import to the customs and accounting records.

HMRC compliance checks on exports

HMRC checks whether zero-rated exports meet the legal conditions and whether the supplier retained acceptable evidence that the goods left the United Kingdom. A foreign customer address or international payment does not, by itself, prove that a sale qualifies for zero-rating.

Exporters often believe that the destination shown on the sales invoice is enough.

It is not.

HMRC wants evidence of the actual movement of the goods.

A strong export file normally connects:

• the customer order;
• the sales invoice;
• the goods supplied;
• the delivery address;
• the export declaration;
• the transport document;
• the shipment reference;
• the date of departure;
• evidence of arrival or delivery;
• payment from the customer.

Courier tracking can be useful, but online tracking links may expire. The business should retain the evidence while it remains available.

Export errors frequently arise where:

• the customer collects the goods;
• a freight forwarder controls the documentation;
• the exporter cannot obtain the customs movement reference;
• the goods move to another group company;
• stock transfers are treated as customer sales;
• the export occurs outside the permitted period;
• the evidence does not identify the goods clearly;
• returns or rejected shipments are not recorded.

An Amazon stock movement from the UK to another warehouse is not automatically the same as an export sale to a customer. The business must identify the actual transaction.

Where evidence is incomplete, the company should investigate before HMRC asks for it. Missing evidence may mean that UK VAT becomes due even where the goods genuinely left the country.

Reverse charge issues during HMRC compliance checks

HMRC may review overseas services purchased by a UK VAT-registered business to confirm whether the reverse charge was applied. The reverse charge can affect output VAT, input VAT and VAT Return values even where the net amount payable remains unchanged.

Reverse charge errors are common among SaaS businesses, consultants, digital service providers and eCommerce companies.

The company receives an invoice from an overseas supplier without UK VAT. It therefore assumes that the invoice has no UK VAT consequences.

That assumption may be wrong.

Depending on the supply, the UK customer may need to account for VAT as though it had supplied the service to itself. It may then recover the VAT, subject to the normal input VAT rules.

For a fully taxable business, the entries may offset. Directors sometimes conclude that reporting is unnecessary because the net effect is nil.

However, HMRC may still treat the Return as inaccurate.

The reverse charge can affect:

• Box 1;
• Box 4;
• Box 6;
• Box 7;
• partial exemption calculations;
• registration considerations;
• the accuracy of the VAT account.

Typical overseas services include:

• software subscriptions;
• cloud hosting;
• online advertising;
• consultancy;
• legal services;
• design work;
• software development;
• marketplace services;
• management charges.

HMRC may compare international payments in the bank statements with reverse charge entries in the VAT account.

A company with substantial overseas expenditure but no reverse charge calculations should expect questions.

Making Tax Digital during HMRC compliance checks

Making Tax Digital requires VAT-registered businesses to keep specified digital records and submit VAT Returns through compatible software, unless an exemption applies. HMRC may examine the complete digital journey from the original transaction to the figures filed, not merely the final electronic submission.

A business does not satisfy Making Tax Digital simply because an accountant pressed the submit button in compliant software.

The underlying records also matter.

HMRC may ask:

• where sales are first recorded;
• how purchase invoices enter the ledger;
• how marketplace data is imported;
• how refunds are processed;
• how exchange rates are applied;
• how customs data enters the VAT account;
• which adjustments are manual;
• who reviews the Return;
• how figures move between software systems.

All VAT-registered businesses generally need to keep digital records and file through compatible software. HMRC’s VAT Notice 700/22 also explains when software products must be connected through digital links.

A typical weak process looks like this:

1. Amazon reports are downloaded.
2. An employee manually totals sales.
3. The total is copied into a spreadsheet.
4. Another employee emails the figure to the accountant.
5. The accountant enters it into VAT software.
6. Nobody reconciles the amount with the source data.

The Return may be submitted successfully. However, the audit trail is poor and the risk of error is high.

A better process preserves transaction-level data and documents each adjustment.

Businesses should be able to explain how they prepare their figures. Our practical review of how to prepare a UK VAT Return shows the checks that should take place before submission.

How should a business respond to HMRC compliance checks?

A business should verify the request, understand the scope, preserve its records, reconcile the relevant VAT Returns and submit a clear evidence package by the deadline. The response should answer HMRC’s questions directly while also explaining the commercial context needed to interpret the documents correctly.

The first detailed response often sets the direction of the entire enquiry.

A strong response shows control. A weak response creates new questions.

Step 1: Confirm the legal entity

Check the exact:

• company name;
• VAT number;
• registration jurisdiction;
• trading names;
• marketplace account holder;
• bank account holder;
• importer identity;
• period under review.

International groups often use similar names. Do not assume that every document belongs to the VAT-registered company.

Step 2: Identify what HMRC is testing

Read each question carefully.

Then ask why HMRC needs the information.

A request for purchase invoices may test input VAT. A request for sales reports may test turnover. Customs documents may test importer status or postponed VAT accounting.

This analysis helps prevent an incomplete response.

Step 3: Preserve the evidence

Download platform reports, customs statements, bank statements and courier tracking data immediately.

Do not assume they will remain available.

Ask warehouses, freight agents and former accountants to preserve relevant records.

Step 4: Reproduce the VAT Return

The business should be able to rebuild the Return from the VAT account.

Reconcile:

• Box 1 to output VAT;
• Box 4 to recoverable input VAT;
• Box 5 to the net liability or repayment;
• Box 6 to sales values;
• Box 7 to purchase and import values.

Investigate every unexplained difference.

Step 5: Review the source documents

Check whether invoices:

• name the correct company;
• contain the supplier’s VAT number;
• describe the supply;
• show the correct VAT;
• relate to the relevant period;
• remain unpaid beyond applicable limits;
• were later credited or cancelled.

Check whether import and export evidence supports the VAT treatment.

Step 6: Identify errors before HMRC does

If the review finds an error, quantify it.

Do not send documents that reveal an obvious error without addressing it in the response.

The business should understand:

• what went wrong;
• which periods are affected;
• the VAT amount;
• why the error occurred;
• whether similar errors exist elsewhere;
• how the process has been corrected.

Step 7: Prepare a document index

Use clear file names.

For example:

• A1 – Business overview
• A2 – Supply chain summary
• B1 – Submitted VAT Return
• B2 – Detailed VAT account
• B3 – Sales reconciliation
• C1 to C10 – Purchase invoices
• D1 – Bank reconciliation
• E1 – Customs declarations
• E2 – PVA statements
• F1 – Export evidence

The index should match the covering letter.

Step 8: Explain the documents

Do not merely attach evidence.

Explain what each document proves and how it connects to the VAT Return.

A short, accurate explanation usually helps more than a long narrative.

Step 9: Review the full submission

Check that:

• dates agree;
• company names agree;
• totals reconcile;
• explanations do not conflict;
• every HMRC question has been answered;
• confidential data has been handled appropriately;
• the correct files are attached.

Step 10: Keep a complete copy

Retain the exact covering letter and every document submitted.

Record the submission date and delivery method.

Future correspondence should use the same terminology and facts.

What if the business needs more time?

A business that cannot meet HMRC’s deadline should contact the officer before it expires, explain the reason and propose a realistic alternative date. HMRC may allow additional time where there is a genuine reason, but silence or repeated missed deadlines can damage credibility and lead to formal action.

Overseas companies often need documents from several countries. That can justify an extension.

For example, the business may need:

• archived statements from an overseas bank;
• customs data from a freight agent;
• reports from a former accountant;
• translated contracts;
• warehouse records;
• marketplace data for an old account.

The extension request should be specific.

A weak request says:

“We need more time because the records are difficult to obtain.”

A stronger request says:

“Our former fulfilment provider has confirmed that the archived stock reports will be available by 14 September. We request an extension until 21 September so that we can reconcile the reports with the VAT account and provide a complete response.”

Where possible, submit the information already available and provide a timetable for the remainder.

HMRC’s current compliance factsheet confirms that businesses should tell the officer when they need more time and that HMRC may agree an extension where there is a good reason.

What should you do if you discover a VAT error?

If a business finds an error during an HMRC compliance check, it should determine the full amount, identify every affected period and explain the cause. It should then disclose the position accurately rather than waiting for HMRC to reconstruct it from incomplete records.

The instinct to answer only the question asked can be dangerous.

Suppose HMRC asks about sales in one quarter. The internal review shows that the same marketplace report was omitted from six Returns.

Sending only the requested quarter does not solve the wider problem.

It may also weaken the company’s credibility when HMRC later discovers the repeated error.

The correct process is to establish:

• the original figures;
• the correct figures;
• the net VAT difference;
• the periods affected;
• whether the error affects sales or purchases;
• whether interest may arise;
• how the error should be corrected;
• whether HMRC needs a separate notification;
• why the error occurred;
• what controls have changed.

Businesses should not assume that changing historic data in accounting software corrects the Return held by HMRC.

A submitted VAT Return cannot normally be reopened and replaced. The correction route depends on the amount and circumstances. Our detailed guide explains how to correct a submitted UK VAT Return.

Prompted and unprompted disclosures

The timing of the disclosure affects the penalty position.

An unprompted disclosure is generally made before the business has reason to believe that HMRC has discovered, or is about to discover, the inaccuracy.

Once HMRC has opened a relevant check, a disclosure will usually be prompted.

However, a prompted disclosure can still reduce the penalty.

HMRC considers the quality of the disclosure. It looks at whether the business:

• tells HMRC what went wrong;
• helps HMRC quantify the position;
• gives access to relevant records.

HMRC’s 2026 penalty factsheet confirms that disclosures made during a relevant check will normally be prompted and that the quality of “telling, helping and giving” affects the reduction.

The worst approach is to know about an error and continue providing incomplete or misleading information.

Penalties following HMRC compliance checks

An error does not automatically lead to a penalty. HMRC considers whether the business took reasonable care, acted carelessly or submitted a deliberate inaccuracy. The potential penalty also depends on whether the disclosure was prompted and how fully the business cooperated.

HMRC separates the unpaid VAT from the behaviour that caused it.

A business may owe additional VAT and interest but receive no inaccuracy penalty if it took reasonable care.

Conversely, a relatively small VAT error can result in a significant percentage penalty where HMRC considers the conduct deliberate.

The current penalty ranges are:

Behaviour	Unprompted disclosure	Prompted disclosure
Reasonable care	No penalty	No penalty
Careless	0% to 30%	15% to 30%
Deliberate	20% to 70%	35% to 70%
Deliberate and concealed	30% to 100%	50% to 100%

HMRC calculates the penalty by reference to potential lost revenue and the applicable percentage. It can reduce the percentage to reflect the quality of disclosure.

Reasonable care

Reasonable care depends on the circumstances.

A small overseas business is not expected to know every UK VAT rule without advice. However, it should recognise when a transaction requires specialist review.

Evidence of reasonable care may include:

• maintaining accurate records;
• obtaining professional advice;
• providing complete facts to the adviser;
• checking unusual transactions;
• reconciling Returns before submission;
• correcting errors promptly;
• documenting key VAT decisions.

Appointing an accountant does not remove the company’s responsibility.

If the business fails to tell the accountant about a second Amazon account, it cannot blame the adviser for omitted sales.

If the company provides full information, asks the correct question and follows competent advice, its reasonable-care argument will be much stronger.

Careless behaviour

Carelessness means failing to take reasonable care.

Examples may include:

• using net marketplace deposits as turnover;
• claiming VAT without checking invoices;
• ignoring unexplained reconciliation differences;
• failing to retain export evidence;
• estimating import VAT and never correcting it;
• repeating an error after it was identified;
• filing from incomplete records;
• failing to review an unusual repayment.

HMRC should consider the actual facts. A single keying mistake in a controlled system differs from a VAT process that nobody has reviewed for years.

Deliberate behaviour

A deliberate inaccuracy occurs where the business knows the Return or document is wrong when it submits it.

For example, a director may know that sales were omitted but instruct the accountant to file the Return because the company lacks cash to pay the VAT.

That is not merely a bookkeeping mistake.

Deliberate and concealed behaviour involves active steps to hide the inaccuracy. False invoices, manipulated records or intentionally hidden accounts can fall into this category.

Penalty reductions

HMRC may reduce a penalty based on:

• telling;
• helping;
• giving access to records.

The current HMRC framework allocates potential reductions across those three areas. Delays in disclosure can restrict the reduction available.

This creates a practical reason to cooperate properly.

Cooperation does not mean agreeing with every HMRC conclusion. A business can challenge the technical position while still providing accurate facts and records.

Suspended penalties

HMRC may suspend a penalty for a careless inaccuracy where it can set conditions that help prevent a similar error.

The suspension can last for up to two years.

For example, HMRC may require an online seller to introduce a quarterly reconciliation between marketplace sales, refunds, bank settlements and VAT Returns.

If the company meets the conditions and avoids further relevant inaccuracies, it may not need to pay the suspended penalty.

HMRC cannot suspend penalties for deliberate behaviour under this process.

HMRC meetings, VAT visits and inspections

HMRC may ask for a meeting or arrange a visit to inspect records, premises, stock and business processes. A company should understand the purpose, prepare the relevant people and records, and avoid speculative answers. Overseas directors can appoint an adviser, but HMRC may still need direct factual information.

HMRC usually arranges VAT visits in advance. However, unannounced inspections can occur in appropriate circumstances.

A visit allows the officer to see:

• how the business operates;
• where records are kept;
• how stock moves;
• who prepares the VAT Return;
• how accounting systems work;
• whether the stated business activity exists.

HMRC guidance confirms that VAT officers can inspect records to check whether the business pays and reclaims the correct VAT.

Preparing for a meeting

Before a meeting, the company should:

• obtain the agenda;
• identify the periods under review;
• reconcile the VAT Returns;
• review known errors;
• prepare a supply-chain explanation;
• decide who answers each type of question;
• organise the evidence;
• brief staff not to speculate;
• arrange professional representation where appropriate.

The meeting should include people who understand both the commercial and VAT position.

A warehouse manager may understand stock movement but not ownership, Incoterms or the VAT treatment. An accountant may understand the Return but not how orders are fulfilled.

Both perspectives may be necessary.

Avoid imprecise language

Casual phrases can create serious confusion.

“Amazon pays the VAT” does not explain whether Amazon is a deemed supplier, a customer or a platform.

“The courier imports the goods” does not establish who appears as importer.

“We only sell overseas” may be misleading if goods are stored in Britain when sold.

“We do not have a UK business” does not necessarily mean the company has no UK VAT obligations.

Answers should be accurate and properly qualified.

After the meeting, prepare an internal note recording:

• attendees;
• questions;
• answers;
• documents provided;
• matters left open;
• deadlines;
• agreed next steps.

How long do HMRC compliance checks take?

There is no fixed duration for HMRC compliance checks. A focused enquiry with complete records may close quickly. A review involving missing documents, several entities, import problems, repeated errors or disputed VAT treatment may continue for months or longer.

The size of the business does not always determine the length of the check.

A large company with strong systems may answer a complex request quickly. A small seller with missing marketplace and customs data may struggle for months.

The timetable depends on:

• scope;
• number of VAT periods;
• transaction volume;
• quality of records;
• response speed;
• technical complexity;
• availability of overseas evidence;
• need for HMRC specialist input;
• whether new risks emerge;
• whether penalties are disputed.

A business can help move the case forward by asking focused questions.

For example:

• Which issues remain unresolved?
• Has HMRC accepted any areas?
• What evidence is still required?
• Can part of the check be closed?
• Does HMRC intend to consider penalties?
• What action is needed to conclude the enquiry?

Repeatedly asking when HMRC will finish is less effective than identifying what prevents closure.

What happens when the compliance check ends?

At the end of the check, HMRC may confirm that no adjustment is required, amend the VAT position, issue an assessment, charge interest, impose a penalty or agree a settlement. The business should check every calculation, period and behaviour classification before accepting the outcome.

The closing documents may include:

• a letter confirming no change;
• an assessment;
• an amended assessment;
• a penalty notice;
• an interest calculation;
• a contract settlement;
• a letter explaining the final position.

Review the result carefully.

Check:

• the VAT periods;
• the taxable values;
• the VAT rates;
• input VAT allowed;
• output VAT assessed;
• credit for tax already paid;
• interest dates;
• potential lost revenue;
• behaviour classification;
• disclosure type;
• penalty reduction;
• appeal deadline.

Tax, interest and penalties are separate issues.

A company may accept that additional VAT is due but disagree with HMRC’s careless-behaviour conclusion. It may accept a careless error but argue that the penalty should be suspended.

The final figures should also be entered correctly into the accounting records. Otherwise, a later Return may duplicate the correction.

Can a business appeal an HMRC decision?

A business can usually provide new information, request an independent HMRC review or appeal to the tax tribunal. The normal deadline is 30 days from the decision letter. Alternative Dispute Resolution may also help where the disagreement involves facts, evidence or communication.

An appeal should identify exactly what the business disputes.

A useful challenge states:

• the decision;
• the relevant period;
• the amount;
• the factual disagreement;
• the technical VAT position;
• the supporting evidence;
• the outcome requested.

A general statement that HMRC is “wrong” will not resolve the issue.

HMRC’s compliance guidance confirms that a business may ask the original officer to consider new information, request a review by another HMRC officer or appeal to an independent tribunal. The normal deadline is 30 days.

Alternative Dispute Resolution can help where the parties interpret the facts differently or communication has broken down.

However, ADR may not resolve a pure point of law that requires a tribunal decision.

The commercial decision to challenge HMRC should consider:

• the amount at stake;
• strength of evidence;
• professional costs;
• effect on later Returns;
• impact on the wider business model;
• likelihood of settlement;
• reputational consequences.

A small assessment may still justify an appeal if accepting it would establish the wrong treatment for every future transaction.

Common mistakes during HMRC compliance checks

Businesses often make a manageable enquiry worse by responding late, sending unreconciled records, giving inconsistent explanations or failing to disclose known errors. These mistakes can widen the scope, delay repayments, weaken reasonable-care arguments and reduce penalty mitigation.

The following errors appear repeatedly.

Sending documents before reviewing them

The company sends 500 invoices. It later discovers duplicates, invoices addressed to another entity and credit notes that were never recorded.

HMRC finds the errors first.

Giving HMRC several versions of the same facts

Directors, accountants and logistics staff respond separately.

One says the supplier imported the goods. Another says the company imported them. A third says the customer acted as importer.

The enquiry expands because HMRC no longer trusts the explanation.

Using bank receipts as turnover

Marketplace fees and refunds reduce settlements. Therefore, net deposits do not normally represent gross taxable sales.

Assuming the accountant has all information

An adviser cannot report a marketplace account, warehouse or import that the business never disclosed.

Sending evidence without an explanation

A stack of documents does not show how the VAT Return was prepared.

Writing a long narrative before checking the facts

A detailed but inaccurate explanation creates more difficulty than a short, verified response.

Altering records without preserving the originals

Corrections should remain transparent. The company should keep the original data and explain every adjustment.

Ignoring connected errors

If the same problem affects several Returns, dealing with only one period rarely ends the issue.

Treating every request as unreasonable

A confrontational response to a reasonable document request can lead to formal notices and penalties.

Paying an assessment without fixing the process

The immediate enquiry may close, but the same error continues into later Returns.

How can overseas businesses prepare for HMRC compliance checks?

The best preparation is a VAT control process that allows the business to reproduce every Return from its source records. Sales, purchases, imports, exports, bank movements and manual adjustments should be reconciled each period rather than reconstructed only after HMRC makes contact.

A compliance file should be maintained for each VAT period.

It may contain:

• the submitted VAT Return;
• submission confirmation;
• detailed VAT account;
• sales reconciliation;
• purchase reconciliation;
• marketplace reports;
• payment processor reports;
• import VAT reconciliation;
• postponed import VAT statements;
• export evidence register;
• reverse charge calculation;
• manual adjustment schedule;
• review notes;
• supporting invoices;
• approval by the responsible person.

The controls should reflect the business model.

Amazon FBA sellers

An Amazon seller should reconcile:

• gross sales;
• refunds;
• promotions;
• marketplace-facilitated transactions;
• fulfilment fees;
• advertising charges;
• settlement reports;
• stock movements;
• countries where stock is held.

Shopify stores

A Shopify business should reconcile:

• orders;
• cancellations;
• refunds;
• Stripe receipts;
• PayPal receipts;
• chargebacks;
• delivery countries;
• discount codes;
• VAT calculations;
• bank deposits.

Importers and wholesalers

An importer should reconcile:

• supplier invoices;
• purchase orders;
• shipping records;
• customs declarations;
• EORI details;
• C79 certificates;
• PVA statements;
• warehouse receipts;
• stock records;
• later sales.

Exporters

An exporter should retain:

• customer orders;
• sales invoices;
• export declarations;
• transport evidence;
• proof of departure;
• proof of delivery;
• evidence linking the goods to the shipment.

SaaS and digital service providers

A digital business should verify:

• customer status;
• customer location;
• place of supply;
• VAT number evidence;
• subscriptions;
• refunds;
• foreign currency calculations;
• reverse charge purchases.

The purpose is not to create paperwork for its own sake.

The purpose is to make every VAT figure explainable.

When should professional VAT advice be obtained?

Professional advice is particularly valuable where the compliance check involves large repayments, late registration, several VAT periods, imports, exports, marketplaces, missing evidence, information notices or possible deliberate behaviour. Early advice usually provides more protection than appointing an adviser after inconsistent responses have already been sent.

Not every HMRC request requires specialist representation.

A business with complete records may answer a simple request for two invoices internally.

Professional support becomes more valuable where:

• the Return does not reconcile;
• HMRC appears to misunderstand the business model;
• several legal entities are involved;
• import VAT documents contain errors;
• export evidence is incomplete;
• registration may have been late;
• marketplace sales were omitted;
• the company has found a wider error;
• HMRC is considering penalties;
• an information notice has been issued;
• directors have been invited to a meeting;
• deliberate conduct has been alleged;
• an assessment needs to be appealed.

The adviser should not merely forward documents.

A competent VAT adviser should:

• identify the issue HMRC is testing;
• review the technical treatment;
• reconcile the figures;
• assess connected risks;
• structure the evidence;
• prepare the response;
• manage correspondence;
• challenge incorrect conclusions;
• address the penalty position;
• help correct the underlying process.

VAT Number UK supports overseas companies dealing with VAT registration reviews, repayment checks, HMRC correspondence, VAT Return errors and wider UK compliance. A focused UK VAT consultation can help establish the correct response before information is submitted.

HMRC compliance checks checklist

Before replying to HMRC, confirm the legal entity, scope, deadlines, VAT figures and supporting documents. The final submission should be complete, indexed and internally consistent. The company should also continue filing current VAT Returns and paying amounts due while HMRC reviews earlier periods.

Use the following checklist:

• Verify that the HMRC communication is genuine.
• Confirm the company name and VAT number.
• Identify every period under review.
• Read all HMRC factsheets provided.
• Appoint one response coordinator.
• Preserve relevant records.
• Download platform and customs reports.
• Reconcile the submitted VAT Return.
• Review sales completeness.
• Review purchase invoices.
• Check bank payments and receipts.
• Check import VAT evidence.
• Check PVA statements.
• Check export evidence.
• Review reverse charge entries.
• Review Making Tax Digital records.
• Identify and quantify errors.
• Consider whether a disclosure is required.
• Prepare a document index.
• Draft a factual covering explanation.
• Review the response for inconsistencies.
• Request more time before the deadline if needed.
• Keep a complete copy of the submission.
• Continue filing current Returns.
• Correct the process that caused any error.

Frequently asked questions about HMRC compliance checks

HMRC compliance checks do not automatically result in additional VAT or penalties. The outcome depends on whether the original VAT treatment was correct, whether the company can support it and how the business responds when errors or missing evidence are identified.

Does an HMRC compliance check mean fraud is suspected?

No. Many checks are routine verification exercises.

However, the position becomes more serious if HMRC finds false documents, knowingly omitted sales, concealed accounts or misleading explanations.

Can HMRC check a VAT Return after paying the refund?

Yes. The payment of a repayment does not prevent HMRC from reviewing the Return later.

The business must retain the supporting records for the required period.

Can HMRC contact an overseas company directly?

Yes. HMRC may contact the business and its authorised adviser.

The company should maintain a reliable correspondence address and monitor communications.

Can an overseas director appoint a UK representative?

Yes. The business can authorise an adviser to deal with HMRC.

However, HMRC may still contact the company directly where it needs factual information or confirmation.

Can HMRC ask for personal bank statements?

HMRC may request personal records where they are reasonably required to check the tax position.

The relevance and scope should be reviewed carefully, especially where business and personal finances are separate.

What happens if the records are missing?

Tell HMRC what is missing, why it is unavailable and what steps have been taken to recover it.

Provide alternative evidence where possible. Do not create replacement documents and present them as original records.

Should the company stop filing VAT Returns during the check?

No. Current Returns and payments must continue.

An open enquiry does not suspend normal VAT obligations.

Can HMRC inspect an Amazon fulfilment warehouse?

HMRC can inspect relevant premises, records and assets where its powers apply.

The seller should understand who owns the stock, where it is held and how warehouse records support the VAT position.

Will cooperation prevent a penalty?

Not always.

Cooperation can reduce a penalty, but HMRC will still consider the behaviour that caused the original error.

Can there be no penalty even when VAT is due?

Yes.

If the business took reasonable care, HMRC should not charge an inaccuracy penalty merely because the VAT treatment was wrong. Tax and interest may still remain payable.

What is the best first response to an HMRC letter?

Acknowledge the letter, verify the deadline and begin reviewing the records.

Do not provide a detailed technical explanation until the facts and figures have been checked.

Can HMRC widen the compliance check?

Yes.

HMRC may expand the scope where the initial evidence indicates other risks, periods or taxes.

How quickly should a business obtain advice?

Advice should be obtained before the first substantive response where the issue is complex or the potential exposure is significant.

Correcting an early response is much harder than preparing it properly from the start.

A practical final point

The outcome of HMRC compliance checks usually depends on whether the commercial facts, VAT treatment, accounting records and supporting documents tell the same story. A technically correct position becomes difficult to defend when the evidence is fragmented, while an organised audit trail can resolve even substantial questions efficiently.

Overseas businesses face a particular challenge because their records often sit with several parties.

The director understands the commercial model. The warehouse controls stock data. The freight agent holds customs records. Amazon or Shopify holds transaction information. The bank shows only net cash movements. The accountant sees the data supplied for the VAT Return.

HMRC sees one VAT-registered business.

It expects that business to bring the information together.

The strongest protection is not a persuasive letter written after the enquiry begins. It is a VAT process that regularly connects:

• contracts;
• invoices;
• customer sales;
• marketplace reports;
• bank transactions;
• customs declarations;
• import VAT;
• export evidence;
• accounting records;
• VAT Returns.

When those records agree, HMRC compliance checks become manageable.

When they do not, the business should establish the true position before responding. That is the point at which careful professional analysis can prevent a routine compliance review from becoming a prolonged and expensive VAT dispute.