HMRC compliance checks & tax enquiries

HMRC audits. You don’t have to carry this alone.

An HMRC letter can follow you home, sit at the dinner table and keep you awake. Our support with HMRC audits starts with listening. We help you understand what is being checked, organise a clear response and know what happens next.

No obligation to join. Tell us what you received and the deadline.

  • Plain-English advice
  • Clear, agreed fees
  • Personal support across the UK
Business owner reading a letter in a bright office, illustrating personal support with HMRC audits.
You deserve a clear next step—and someone to talk to.
Is a deadline close or already missed? Call 01244 730 300 and tell us the date. An enquiry to Swift does not extend HMRC’s deadline; we will confirm what we can take on.

A manageable place to start

You do not need every answer today. Start with the letter.

Receiving a compliance-check letter does not, by itself, mean you have done something wrong. You do need to take it seriously. These first steps help us understand the situation and protect the time available.

  1. Check the request and the date. Keep every page, enclosure and earlier reply. Note the tax, period and response deadline.
  2. Keep the underlying records safe. Preserve paper files, emails, bank records and software data. Do not alter, discard or invent evidence.
  3. Tell us what is worrying you. Missing documents, a possible error or a previous conversation with HMRC all matter.
  4. Agree who will do what. If more time is needed, contact HMRC promptly to request it. An extension must be agreed; it is not automatic.

Unsure the contact is genuine? Use HMRC’s official contact checks. An unfamiliar message should be verified before you share financial information.

Letter, notebook and laptop arranged on a desk for an initial HMRC audit review.
Start with the letter, the date and what HMRC has asked for.

Understanding what is happening

What does an “HMRC audit” actually mean?

People often use “HMRC audit” to mean a tax compliance check or tax enquiry. HMRC is checking whether the tax, allowances and reliefs are correct. A check may focus on one issue or cover a wider range of records. It is different from a statutory audit of a company’s financial statements.

Individuals, sole traders, landlords, partnerships, limited companies and employers can all receive enquiries. We begin with the actual letter and the work involved.

The tax being checked shapes the response
Type of check What may need reviewing Related Swift support
Self Assessment Income, business expenses, rental figures, gains and supporting calculations. Self Assessment tax returns
Corporation Tax Company accounts, tax computations, expenses and relevant director transactions. Corporate accounting
VAT Returns, invoices, sales records, VAT treatment and reconciliations. VAT return services
PAYE & employer compliance Payroll submissions, payments, benefits, expenses and employment-status questions. Payroll support
Construction Industry Scheme Verification, deductions, payment statements, monthly returns and subcontractor records. CIS accountants

HMRC may ask questions where figures appear inconsistent or a claim needs explanation. That is a reason to check the evidence, rather than assume the outcome. We also distinguish an active enquiry from a general prompt to review a return.

Does the letter mention COP8, COP9, fraud or an interview under caution?

Tell us immediately so the right specialist tax or legal support can be identified. COP9 concerns suspected fraud and has a separate process. An offer under the Contractual Disclosure Facility gives 60 days from receipt to accept or reject it; accepting also requires a valid Outline Disclosure within that period. Obtain specialist advice promptly. We will confirm the appropriate service before agreeing to act.

HMRC: tax compliance checks, why a check may start and Code of Practice 9.

Client and adviser reviewing a folder together, illustrating clear advice during an HMRC audit.
You should understand the response before it is sent.

Clear work. A person you can speak to.

We help turn the questions into a plan.

You may have just received a letter, be partway through an enquiry or need help understanding HMRC’s findings. We review the position before recommending the support.

  • Explain the request: the tax periods, questions, documents and dates involved.
  • Organise the evidence: identify gaps and reconcile the figures that need explaining.
  • Prepare the response: review the facts with you and communicate with HMRC once appropriately authorised.
  • Support the next stage: agree any meeting preparation, further replies, calculations or challenge work needed.
  • Keep you informed: explain what has been sent, what we are waiting for and what happens next.

Your agreed service defines our responsibilities. You remain responsible for providing complete, accurate information and reviewing the facts submitted on your behalf.

We listen

Tell us what arrived, the deadline and what you have already done.

We agree the work

Understand the scope, fee, authority and documents needed.

We prepare together

Check the records, discuss the explanation and review the response.

You know your next step

Receive clear updates and an explanation of the outcome or further work.

A checklist built around your enquiry

Bring what you have. Tell us what is missing.

A folder of mixed paperwork should not stop you asking for help. We start with HMRC’s request, explain which records are relevant and agree any work needed to put them in order.

For the first conversation, the type of letter, tax period and deadline are enough to begin. We explain how to share the letter and sensitive documents through the appropriate secure channel. Keep tax references, passwords and identity documents out of the general enquiry form.

Cafe owner reviewing invoices beside a laptop, illustrating record preparation for HMRC audits.
Bring what you have. We will help you identify the gaps.
Records we may ask you to gather
Start here Examples Why it helps
Correspondence The complete HMRC letter, notices, enclosures and replies already sent. Establish the questions, scope and deadlines.
Returns & calculations Relevant tax returns, accounts, computations and previous adviser workings. Understand what was reported and how it was calculated.
Supporting evidence Bank statements, invoices, receipts, contracts and records relevant to the check. Match explanations to the underlying transactions.
Business systems Bookkeeping exports, sales reports, payroll, VAT or CIS records where relevant. Reconcile the records and identify differences or gaps.
Missing records or digital bookkeeping problems?

We can assess whether copies can be obtained from banks, suppliers, software or a previous adviser. Explain missing evidence honestly; reconstruction work is agreed separately. Keep original files and an audit trail of corrections. Using software or Making Tax Digital does not remove the need to support the figures.

Understand the request before responding

HMRC has powers. You have rights and responsibilities.

Good representation means cooperating accurately while checking the scope of a request. We explain the relevant notice and help you understand what must happen.

Information requests & formal notices

A formal information notice is a legal requirement to provide specified information or documents. It sets out the deadline and any challenge rights. Penalties can arise if it is not complied with.

Some notices or requirements cannot be appealed. If the request seems unclear, unreasonable or impossible to meet, raise that promptly with advice. Do not simply ignore it. We can review the scope and discuss requesting more time where appropriate.

Meetings, visits & inspections

HMRC may propose a meeting or visit, and you can have an accountant or legal adviser present. We can agree preparation and attendance as part of the service.

A voluntary meeting and a formal inspection notice have different implications. Some inspections are unannounced. Check identification and the notice, seek advice promptly and do not assume HMRC must wait for your adviser before proceeding.

HMRC: information notices, arranged visits and unannounced inspections.

Clarity about the result

Understand the figures. Understand your options.

A check may end with no adjustment, a correction, more tax to pay or a repayment or credit. We review HMRC’s conclusions and explain the amounts, dates and remaining steps.

Tax & interest

We check the underlying calculation and explain interest separately. Interest can run from the original payment due date, even while an enquiry is being resolved.

Penalties

An error does not automatically mean an inaccuracy penalty. Reasonable care, the behaviour involved and the timing and quality of disclosure matter. Other penalties have different rules.

Payment difficulties

Tell us early if paying would be difficult. We can discuss the information needed for a realistic Time to Pay proposal. HMRC decides whether to agree an arrangement.

We look at the evidence behind a penalty.

Where relevant, we consider reasonable care, disclosure, special circumstances and whether a careless-inaccuracy penalty could be suspended subject to conditions. We explain the available arguments without promising that tax, interest or penalties will be removed.

HMRC: check outcomes, inaccuracy penalties and payment plans.

What if you disagree with HMRC?

Depending on the decision, you may be able to appeal, request a statutory review or take the matter to a tax tribunal. The route differs between taxes. Decision letters usually allow 30 days to act, so check the specific notice promptly.

Could a dispute be resolved another way?

Alternative Dispute Resolution may help resolve some disagreements during or after a check. It is subject to HMRC accepting the case. Protect any review or appeal deadline while considering it; do not assume informal discussions extend your time.

HMRC: challenging a tax decision and Alternative Dispute Resolution. Review, appeal, tribunal and specialist legal work must be included in the agreed scope if required.

One less uncertainty

Know what you are paying for before we begin.

Your first conversation is completely free and without obligation. We discuss the letter, timing and help needed, then explain the proposed work and fee before any paid work starts.

Your proposal makes clear

  • The tax, period and stage of the enquiry covered.
  • The records, response work and meetings included.
  • The agreed fee and any applicable VAT.
  • What you provide, who handles deadlines and how we keep in touch.

If the enquiry becomes wider

More tax years, additional questions, missing-record reconstruction or an appeal may need further work. We explain changes to scope and agree the additional fee.

A longer enquiry may be priced in defined stages. HMRC enquiry work is not automatically included in an existing monthly accounting package.

Already have tax investigation fee protection or insurance?

Check the terms and notify the provider promptly. Ask about notification deadlines, exclusions, adviser approval and costs authorised before work begins. We can discuss how any existing cover affects the proposed service; cover is not assumed.

Until we confirm our engagement and responsibilities, you or your existing adviser must continue handling the deadlines.

Business owner talking on a laptop video call, illustrating remote support with HMRC audits.
A phone call, a video meeting or a conversation across the table.

Communication is at the heart of our support

You should never feel uncomfortable asking again.

Tax language can be difficult to take in when you are worried. Ask us to explain it again, write it down or talk it through with you. Understanding what is happening matters.

Choose phone or email, a Teams or video call, or an appointment at our Tattenhall office. Visits to your business can be arranged where appropriate. We agree how to share documents and keep you updated.

If health, disability, bereavement or personal circumstances make the process harder, tell us. We can help explain the support or adjustments you need to HMRC.

3 Chowley Court, Chowley Oak, Tattenhall, CH3 9GA.
Office hours: Monday–Thursday 9am–6pm; Friday 9am–4pm. Appointments outside these hours by arrangement.

The value of staying in touch

Support should feel like a conversation.

“we were always in contact and looking for solutions.”

Max — excerpt from a general Swift Accountants client review.

This review describes the wider client experience, rather than a specific HMRC enquiry. Read the full review and more client experiences.

Questions you should feel free to ask

HMRC audits: your questions, answered.

Does an HMRC audit mean I am suspected of fraud?

No. A routine compliance check is not itself an accusation of fraud. We read the letter to understand its purpose. References to COP9, suspected deliberate behaviour or a criminal investigation need prompt specialist advice.

Can you help if I am not already a Swift client?

Yes, you can contact us about a new or existing enquiry. We first assess the deadline, records and work needed, then confirm whether we can act. Any handover from your current adviser must make responsibility for deadlines clear.

How long does an HMRC audit take?

There is no single timetable. The scope, records, further questions and any dispute all affect the length of a check. We agree the work and update you on progress; we cannot promise when HMRC will close it.

Can you speak to HMRC for me?

Once the correct authority is in place, we can deal with HMRC for the taxes and work agreed. HMRC may still need to contact you directly or ask for your involvement. Forward any new correspondence promptly.

Do I have to deal with the check by telephone?

For checks conducted by phone, you can ask HMRC to write instead. Tell us how you prefer to communicate and whether you need any adjustments. A change of communication method does not remove the need to meet the applicable deadline.

Can HMRC ask to see bank statements?

HMRC can request relevant financial information and can use formal information powers. Which accounts and periods are relevant depends on the enquiry. We review the request, explain its scope and identify any concern that should be raised.

What if I find a mistake before HMRC does?

Tell us promptly so the facts and correct correction or disclosure route can be reviewed. Timing and cooperation can affect penalties. A disclosure made after HMRC has started checking an issue is not automatically treated as unprompted.

How far back can HMRC look?

Enquiry and assessment time limits depend on the tax, return, circumstances and behaviour involved. Some cases allow HMRC to assess much older periods. We check the actual position; the date on an old return alone does not settle it.

Should I keep filing returns while the enquiry is open?

Yes. Continue meeting your ongoing filing and payment obligations. Where relevant, this includes VAT, payroll, CIS and Making Tax Digital work. Any arrangement affecting a particular payment must be confirmed separately.

Can you guarantee there will be no extra tax or penalty?

No. The result depends on the facts, the law and HMRC’s conclusions, which may be open to challenge. Our role is to provide clear advice, prepare an accurate response and explain the options within the work agreed.

Further guidance: representation and communication and disclosure and penalties, and assessment time limits.

A clearer routine after the enquiry

Once the immediate questions are addressed, we can discuss the record keeping and ongoing support that fit your business. These services are agreed separately where needed.

For the people. For your dreams. For your future.

Your life is bigger than this letter.

There are customers to look after, people waiting at home and plans you still want to make. Let us start with a conversation about what is worrying you—and work out the next step together.

Completely free to talk. No obligation to join. No need to have all your paperwork ready.

Family sharing a relaxed meal at home, illustrating the personal priorities behind HMRC audit support.
For the people, plans and ordinary moments that matter.
Swift Accountants

Listening,
Understanding,
Advising

A real person to ask

Tell us what you need help with. We’ll call you to understand your situation, explain how we can help and agree the next steps.

Your initial chat is completely free. No obligation to join Swift.

A fee you understand. Any further advice or accounting work is agreed and priced separately.

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