HMRC Investigation Accountant

Expert Support When HMRC Comes Calling

An HMRC investigation is stressful, time-consuming and easy to make worse by responding wrongly. What you say, what you send, and how early you get expert help all affect the outcome  including how much you end up paying in tax, interest and penalties.

As an experienced HMRC investigation accountant, we step in and deal with HMRC on your behalf. We handle the correspondence, prepare your documentation, present your case, and work to protect your position from the first letter to final resolution.

Know about

Types of HMRC Enquiries

Not all HMRC checks are the same. Knowing which one you face shapes the right response:

  • Aspect enquiry  HMRC questions one specific part of your return, such as a single expense or entry. Usually narrower and shorter (often three to six months).
  • Full enquiry  HMRC reviews your entire return and records, often across several years. Wider in scope and can take a year or more.
  • Random check  selected without any specific suspicion; can happen to anyone.
  • Code of Practice 8 (COP8)  for complex tax-avoidance arrangements.
  • Code of Practice 9 (COP9)  where HMRC suspects deliberate, serious fraud, offering the Contractual Disclosure Facility. These are serious; specialist representation is essential.
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What are the

Common Triggers

While some checks are random, most are prompted by something. Common triggers include:

  • Inconsistencies or errors in your return or accounts.
  • Large or unusual claims  expenses, travel or capital allowances out of step with your income.
  • Year-on-year swings in income or profit that look unexplained.
  • Late or frequently amended returns.
  • Undeclared income HMRC identifies from third-party data (banks, property sales, platforms).
  • Tip-offs through HMRC’s fraud reporting system.
  • Higher-risk profiles  cash businesses, complex affairs, overseas income, multiple income sources.

Good record-keeping and accurate filing  exactly what our other MTD services deliver  are the best way to reduce your risk in the first place.

Know about

How We Represent You

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How we work

The Investigation Process

Most investigations follow a similar path. Here is what to expect, and where we take the weight:

Opening letter

HMRC writes setting out the type of enquiry and what it wants. Do not ignore it  but do not rush a reply either. Send it to us first

Information requests

HMRC asks for records and explanations (sometimes using formal Schedule 36 powers). We manage exactly what is provided and when

Review and meetings

HMRC analyses the information; there may be questions or a meeting, which we attend with or for you

Proposed outcome

HMRC sets out any additional tax, interest and penalties. We check and challenge this

Resolution

The enquiry closes by agreement, a decision notice or a contract settlement. You have the right to appeal within 30 days of a decision

How We

Protecting Your Position

The outcome of an investigation is not fixed  how it is handled makes a real difference. We work to protect you by:

  • Getting the behaviour category right  penalties scale with behaviour: up to 30% for careless errors, up to 70% for deliberate, and up to 100% where deliberate and concealed. Arguing the correct category can dramatically cut a penalty.
  • Maximising disclosure reductions  cooperation and proper disclosure reduce penalties; we make sure you get full credit.
  • Limiting the scope  keeping the enquiry to what it should cover, not letting it expand unnecessarily.
  • Watching the time limits  HMRC can normally go back 4 years for innocent errors, 6 for careless behaviour and up to 20 for deliberate conduct; we hold them to the correct limits.
  • Managing interest and settlement  including how and when any amount is paid.
Why us

Why Choose Us

For COP8, COP9 or suspected fraud, specialist or legal representation is essential  we can act alongside the right specialists where a case calls for it. HMRC-registered tax agents authorised to act on your behalf and provide Ongoing Tax Support when you need continuous assistance.

Case Study

Our Client's success story

A sole trader in Ilford received an aspect enquiry questioning a year of unusually high expenses. Worried, he had almost replied directly to HMRC with a long, defensive letter  which could have widened the enquiry.

He came to us first. We reviewed the records, found the expenses were legitimate and well-documented, and responded to HMRC with exactly what was needed and nothing more. The enquiry closed within a few months with no additional tax due. His comment: “I’d have made it ten times worse on my own.”

Fees

Pricing

Software setup is included within our flat monthly service fee, agreed up front based on your needs. There is no separate setup charge for ongoing clients. If you only need a one-off setup, we will quote you a fixed price at your free consultation.

Your journey

Get Expert Help Today

An HMRC investigation does not have to be a nightmare. With the right representation from the start, you protect your position, limit the penalties, and get your time and peace of mind back. The earlier you involve us, the more we can do.

FAQs

Frequently asked questions

Do not ignore it, and do not reply in detail on your own. Note any deadline in the letter and send it to a qualified adviser first. What you say early on can affect the scope of the enquiry and the penalties, so getting expert input before you respond is the single most important step.

It depends on behaviour. HMRC can normally go back 4 years for innocent errors where reasonable care was taken, 6 years for careless behaviour, and up to 20 years for deliberate conduct or failure to notify. These periods run from the end of the relevant tax year.

Penalties are based on behaviour: up to 30% of the tax for careless errors, up to 70% for deliberate, and up to 100% where deliberate and concealed. They can be reduced for disclosure and cooperation, which is one area where good representation makes a real difference.

For routine checks it is not strictly required, but the penalty mitigation and reduced stress almost always outweigh the cost. For COP8, COP9 or any suspected fraud, specialist representation is effectively essential.

Most enquiries are about recovering tax, interest and penalties, not prosecution. Criminal proceedings are rare and reserved for serious deliberate fraud. Handling an enquiry correctly and cooperating helps keep matters civil.

Yes. We are based in Ilford, Greater London, and represent clients in HMRC enquiries across the whole UK.

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