Specialist UK tax advice for London individuals, landlords, directors and businesses

HMRC compliance check accountant London

HMRC Compliance Check support before you reply, disclose records or agree figures.

Tax Accountant London helps individuals, landlords, company directors, employers, contractors and businesses respond to HMRC compliance checks, tax return enquiries, records requests, VAT checks, PAYE reviews, Corporation Tax enquiries and penalty issues.

HMRC records requests Self Assessment checks Corporation Tax enquiries VAT and PAYE reviews Penalty support
The first response to HMRC matters.

A compliance check should be handled by reviewing the HMRC letter, the tax years involved, the records requested, the legal scope of the check, the possible tax exposure and the behaviour position before any documents are sent.

01 Review HMRC’s scope

We check the letter, tax years, records requested, deadline and whether the enquiry may widen.

02 Prepare evidence properly

Records are reviewed, explained and organised before they are submitted to HMRC.

03 Manage tax and penalties

We review tax exposure, interest, penalty behaviour, disclosure quality and settlement route.

HMRC tax compliance check support

An HMRC compliance check is a formal review of whether the right tax has been reported and paid.

HMRC may open a compliance check into a Self Assessment tax return, Company Tax Return, VAT return, PAYE records, rental income, foreign income, capital gains, business expenses, payroll, CIS or other tax records. Some checks are narrow and focus on one point. Others can widen if HMRC finds inconsistencies.

The correct response is not always to send everything immediately. The first step is to understand what HMRC is legally asking for, what the records show, whether any errors exist, whether disclosure is needed and what penalty behaviour may apply.

Who needs HMRC compliance check support

Support for taxpayers, landlords, directors, companies, employers and businesses under HMRC review.

A compliance check can feel routine at the start, but the outcome can affect tax, interest, penalties, earlier years and future HMRC risk. Professional review is especially important where records are incomplete, the issue covers several years or HMRC is asking detailed questions.

01

Individuals and Self Assessment taxpayers

Employment income, dividends, high income child benefit charge, payments on account, capital gains, foreign income and unexplained entries.

02

Landlords and property owners

Rental income, mortgage interest relief, repairs, capital improvements, jointly owned property, omitted years and Let Property Campaign risk.

03

Companies and directors

Corporation Tax, company expenses, director loans, dividends, benefits, payroll records, VAT returns and close company issues.

04

Employers and VAT-registered businesses

PAYE records, RTI, P11D benefits, CIS, VAT coding, input VAT, sales VAT, late registration and HMRC VAT checks.

HMRC compliance check letter review

The letter should be analysed before records are sent to HMRC.

HMRC letters can look similar but have different consequences. Some ask for information informally. Some open a formal enquiry. Some refer to a specific risk. Some request records under statutory powers. The response should match the type of check.

What HMRC is checking

We identify whether the check concerns income, expenses, gains, VAT, PAYE, Corporation Tax, property, foreign income or a specific claim.

Which tax years are involved

The tax year or accounting period matters because enquiry windows, amendments, discovery and penalties can depend on timing.

What records are requested

We review whether the requested records are relevant, complete, proportionate and capable of being explained.

Whether HMRC may widen the check

A narrow question can widen if the records show other tax issues, unexplained bank deposits or inconsistent figures.

Whether an extension is needed

Where records need time to collect or review, it may be better to request time rather than send incomplete material.

Whether disclosure is required

If the review identifies an error, the response should consider disclosure, cooperation, behaviour and penalty mitigation.

Records and evidence strategy

Records should be reviewed, reconciled and explained before disclosure to HMRC.

HMRC may ask for bank statements, invoices, receipts, property schedules, foreign statements, VAT records, payroll reports, company accounts, tax computations or supporting evidence for reliefs. The records should be checked for completeness and consistency before submission.

Bank and source records

Bank statements, sales invoices, purchase invoices, rent statements, platform reports and foreign income records.

Filed tax records

Self Assessment returns, CT600s, VAT returns, payroll submissions, accounts, computations and prior amendments.

Explanation schedules

Reconciliations, narrative explanations, schedules of omitted income, expense analysis and correction calculations.

Evidence of reasonable care

Professional advice, software records, bookkeeping processes, correspondence, calculations and steps taken to comply.

Common HMRC compliance check areas

HMRC checks often focus on records that do not match the tax return or business activity.

A compliance check may start with one tax return entry, one source of income or one claim, but the records can raise wider questions if they are not prepared and explained properly.

Unexplained bank deposits

Bank credits may need to be matched to taxed income, capital introductions, gifts, loans, transfers or non-taxable receipts.

Rental income omissions

HMRC may compare property records, Land Registry data, letting agents, mortgage records and tax returns.

Business expenses

Private costs, mixed-use expenses, unsupported claims, mileage, home office costs and repairs may be challenged.

Foreign income and offshore data

HMRC may receive overseas account and investment information and ask why it was not reported on SA106 pages.

VAT return differences

VAT codes, input VAT evidence, sales values, reverse charge entries and late registration can trigger questions.

Payroll and benefits

PAYE, benefits, P11D, CIS, director expenses, employment status and RTI submissions can be reviewed.

Tax, interest and penalty exposure

The penalty position often depends on behaviour, not only the tax amount.

Where HMRC finds an error, the tax and interest calculation is only part of the case. Penalties may depend on whether the taxpayer took reasonable care, made a careless error, acted deliberately, concealed information or made a prompted or unprompted disclosure.

Reasonable care

Evidence of care, professional advice, records, checks and genuine misunderstanding may be important in reducing or removing penalties.

Careless errors

Where HMRC argues carelessness, the response should address what happened, why it happened and how the position was corrected.

Deliberate behaviour risk

Cases involving omitted income, false documents or concealment must be handled carefully because penalties and HMRC approach can change significantly.

Disclosure quality

Cooperation, accuracy, timing, explanation and assistance with HMRC can affect the final penalty percentage.

HMRC compliance check by tax area

One HMRC compliance check can involve several taxes.

A landlord enquiry may lead to CGT questions. A company check may lead to PAYE, VAT or director loan questions. A Self Assessment check may lead to foreign income, property income or capital gains disclosures.

Personal tax

Self Assessment compliance checks

Income, gains, dividends, savings, property, foreign income, payments on account and tax return entries.

Self Assessment support
Business tax

Company and Corporation Tax checks

CT600, company expenses, director loans, dividends, associated records, capital allowances and company accounts.

Corporation Tax support
Indirect tax

VAT compliance checks

VAT returns, input tax, sales VAT, MTD records, VAT coding, reverse charge, partial exemption and VAT penalties.

VAT return support
Employer tax

PAYE and employer compliance checks

Payroll, RTI, P11D, benefits, CIS, employment status, reimbursed expenses and employer records.

Payroll support

HMRC powers, information requests and meetings

Not every HMRC request should be treated the same way.

HMRC may ask for information voluntarily, issue formal notices, request meetings, ask questions about behaviour or ask for documents from third parties. The response should consider relevance, scope, deadlines, appeal rights and whether the records could create wider exposure.

Information requests

We review what HMRC has asked for and whether the requested documents are relevant to the tax issue under review.

HMRC meetings

Meetings should be prepared carefully. You should understand the issues, records and possible questions before attending.

Third-party records

HMRC may already hold data from banks, platforms, employers, overseas authorities, Companies House or property sources.

Closure and settlement

The final position should deal with tax, interest, penalties, payment, amendments and future compliance steps.

How we respond to HMRC compliance checks

We aim to keep the response focused, evidenced and proportionate.

The objective is to answer HMRC properly without creating unnecessary risk. Where the records support the filed position, the response should demonstrate that clearly. Where an error exists, the correction should be accurate and explained.

01 Understand HMRC’s position

We identify the exact issue, tax years, documents requested, deadline and potential risk.

02 Review and reconcile records

We compare HMRC’s questions with bank records, returns, accounts, schedules and source evidence.

03 Prepare the reply

We draft a structured response with supporting schedules, explanations and relevant documents.

04 Handle follow-up queries

We deal with further HMRC questions, proposed adjustments, penalties and settlement discussions.

Documents needed for HMRC compliance check support

Send the HMRC letter first, then the records relevant to the issue.

HMRC correspondence

Opening letter, information notice, penalty notice, assessments, previous replies, deadlines and HMRC officer details.

Tax returns and accounts

Self Assessment returns, company accounts, CT600s, VAT returns, payroll reports and tax computations.

Source documents

Bank statements, invoices, receipts, rent statements, contracts, foreign tax records, payroll records and VAT invoices.

Background explanation

What happened, why HMRC may be asking, whether an error is suspected and whether any advice was taken previously.

HMRC compliance check process

A structured route from first letter to closure.

1 Initial letter review

We review the HMRC letter, deadline, tax area, years involved, requested records and risk level.

2 Records and exposure review

We review filed returns, accounts, bank records, schedules and any possible underpaid tax or overclaim.

3 Response or disclosure

We prepare the reply, supporting schedules, correction, disclosure or appeal depending on the case.

4 Closure and penalty review

We review HMRC’s conclusions, tax, interest, penalties, payment terms and future compliance steps.

HMRC compliance check fees

Fees depend on the HMRC letter, tax years, records and risk level.

We quote before work starts. A short records review is different from a multi-year enquiry, VAT check, PAYE review, offshore income issue, disclosure case or penalty dispute.

Initial HMRC letter review from £300 + VAT

For reviewing the HMRC letter, identifying risk and setting out the next steps.

Compliance check response from £750 + VAT

For preparing a structured response, reviewing records and dealing with initial HMRC questions.

Complex enquiry or disclosure quoted after review

For multi-year, offshore, VAT, PAYE, company, disclosure, penalty or settlement cases.

HMRC Compliance Check FAQs

Common questions about HMRC compliance checks, records requests, penalties and responses.

What is an HMRC compliance check?

An HMRC compliance check is a review by HMRC to check whether the correct amount of tax has been reported and paid. It can cover personal tax, business tax, Corporation Tax, VAT, PAYE, CIS, property income, foreign income or other tax records.

Why has HMRC opened a compliance check?

HMRC may open a check because of information on a tax return, third-party data, unusual figures, repayment claims, property records, offshore information, VAT returns, payroll records or random risk selection. The letter should be reviewed to understand the likely trigger.

Should I reply to HMRC myself?

You can reply yourself, but it is sensible to review the letter, records and possible tax exposure first. A poorly prepared response can create further questions or widen the scope of the check.

Should I send all my bank statements to HMRC?

Only relevant and requested records should normally be prepared and sent in an organised way. Bank statements should be reviewed first so that unusual entries can be explained before HMRC raises further questions.

Can HMRC check earlier years?

HMRC may look at earlier years depending on the type of error, timing, behaviour and statutory powers available. Multi-year issues should be reviewed carefully before any figures are agreed.

Can HMRC charge penalties after a compliance check?

Yes. If HMRC finds an inaccuracy or failure, penalties may depend on the behaviour, timing, tax lost, cooperation and quality of disclosure. Evidence of reasonable care can be important.

What is the difference between careless and deliberate behaviour?

Careless behaviour usually means a failure to take reasonable care. Deliberate behaviour is more serious and suggests the taxpayer knew the position was wrong. The classification can significantly affect penalties and HMRC’s approach.

What if I find an error during the HMRC check?

The error should be quantified and disclosed correctly. The response should explain what happened, which years are affected, how the figures were calculated and what steps have been taken to correct the position.

Can a compliance check lead to a tax investigation?

Yes, in some cases. If HMRC finds wider issues, serious omissions, offshore income, false records or deliberate behaviour concerns, the case may become more serious and require investigation or disclosure support.

How long does an HMRC compliance check take?

The timescale depends on the tax issue, records, HMRC questions, taxpayer response time and whether errors are found. Some checks close quickly, while complex or multi-year cases can take much longer.

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