Tax Return UK – Accounting Services

HMRC INVESTIGATIONS

Understanding HMRC Investigations

An HMRC investigation occurs when the tax authority decides to review your records to verify income, expenses, or overall tax accuracy.
Triggers can include irregular filings, missing documents, or random checks under compliance programs.

Whether it’s a full enquiry, aspect review, or CIS-related check, our team understands HMRC’s processes in detail and responds with precision — keeping your case professional, transparent, and fully documented.

Being contacted by HMRC for an investigation can feel intimidating — but with the right experts beside you, it doesn’t have to be.
At CIDB Solutions Ltd, we provide calm, structured, and fully compliant guidance throughout every stage of an HMRC review.
Our mission is simple: protect your rights, ensure accuracy, and restore confidence in your financial standing.

Why You Might Be Selected

Common reasons HMRC opens investigations for the self-employed include:

  • Late or incomplete Self Assessment submissions.

  • Inconsistent expense claims or unusual deductions.

  • High-risk industry profiles such as construction (CIS).

  • Sudden income changes or unreported trading activity.

Our experts identify the cause quickly, assess your exposure, and build the right strategy before HMRC escalates the case.

What Happens During an Investigation

HMRC can request bank statements, invoices, CIS statements, or proof of expenses.
They may also arrange interviews or on-site visits.

At CIDB Solutions, we act as your representative, handling all correspondence directly with HMRC on your behalf.
We compile evidence, draft formal responses, and ensure you meet every statutory deadline — so you remain compliant without losing focus on your business.

Immediate Actions to Take

If you’ve received a letter or notice from HMRC:

  1. Don’t ignore it. Early communication avoids penalties.

  2. Contact us immediately. We’ll review the notice and your filing history.

  3. Stop self-communication with HMRC. All replies should go through an authorised accountant to protect your position.

Acting quickly demonstrates cooperation and can significantly reduce both stress and potential fines.

How CIDB Solutions Supports You

Our investigation service includes:

  • Reviewing your past returns and bookkeeping data.

  • Identifying discrepancies or missing records.

  • Drafting professional correspondence with HMRC.

  • Negotiating fair settlements where applicable.

  • Implementing corrective bookkeeping to prevent recurrence.

Every action we take is logged in our secure CRM, giving you full visibility of progress in real time.

Minimising Penalties and Exposure

HMRC penalties depend on the type and degree of error.
With accurate disclosure, professional representation, and timely responses, many clients see their penalties reduced or cancelled entirely.
Our accountants provide written mitigation statements and evidence-based reasoning that position you favourably with HMRC reviewers.

Preventing Future Investigations

Prevention is as important as resolution.
After closing your case, we audit your entire tax framework and implement long-term controls:

  • Regular digital bookkeeping reviews.

  • Expense verification workflows.

  • Annual compliance assessments aligned with Making Tax Digital.

This ensures you remain on HMRC’s “low-risk” radar moving forward.

suitable for any business type

OUR PRICING PLANS

*Financial years refer to the specific tax periods that HMRC is reviewing.
For example, if you receive a letter stating that you’re under investigation from 6 April 2021 to 5 April 2023, this covers two financial years in total.

Frequently Asked Questions

An HMRC investigation is when the UK tax authority reviews your financial records to ensure your tax returns are accurate and complete. This may involve checking your income, expenses, bank statements, and business transactions. Investigations can be random or triggered by inconsistencies, late filings, or unusual activity.

Common reasons include:

  • Missing or late Self Assessment submissions

  • Significant changes in income or expenses

  • High refund claims under CIS

  • Inconsistencies between income and declared figures

  • Random compliance checks

Even if your tax affairs are in order, an investigation can still happen. That’s why professional representation is crucial.

Stay calm and don’t respond without advice. Contact CIDB Solutions immediately.
We’ll review the letter, identify what HMRC is requesting, and handle all correspondence on your behalf. Our experts know how to communicate effectively with HMRC and ensure that your rights are protected at every stage.

We manage the entire process for you:

  • Reviewing HMRC’s request and your tax history

  • Gathering and organising all required documentation

  • Communicating directly with HMRC inspectors

  • Preparing professional responses and evidence

  • Negotiating or appealing penalties if necessary

Our objective is to minimise stress, avoid fines, and resolve the issue efficiently, with full transparency throughout.

Penalties depend on whether HMRC finds genuine mistakes or deliberate omissions. If errors are unintentional and you cooperate, fines are often reduced or removed entirely. Having a professional accountant represent you significantly improves your chances of a fair and positive outcome.

It depends on the complexity of your case.
Minor reviews can close within a few weeks, while more detailed investigations may take several months. Our proactive approach helps speed up the process by providing HMRC with complete, accurate information from the start.

Yes. Even if you’re already under review or another accountant made your past filings, we can step in immediately. We’ll request professional clearance, assess your current position, and take over communication with HMRC to get your case resolved as quickly as possible.

Because we provide expert representation at a fraction of the usual cost.
We work 100% remotely, with no office overheads or software licensing costs, allowing us to offer top-tier compliance and defence services at affordable rates. Combined with our 8+ years of tax experience and secure Linux infrastructure, we deliver reliable, discreet, and results-driven support for self-employed professionals.