Tax Investigation Services in the UK

Tax investigations can be stressful, time-consuming, and costly. At Jermyn & Co, we provide comprehensive support to protect you from the financial and emotional toll of HMRC enquiries. With tax compliance becoming a significant focus under recent government measures, it’s more important than ever to be prepared for potential investigations.

Whether you’re a business owner, a sole trader, or an individual taxpayer, our Tax Investigation Fee Protection Service ensures you have expert representation throughout the process without the added burden of professional fees.

Why Jermyn & Co?

What is a Tax Investigation?

A tax investigation is an enquiry conducted by HMRC to ensure that your tax affairs are accurate and compliant. These investigations may arise randomly, as HMRC has the authority to check any taxpayer’s records without specific cause.

Recent statistics show a sharp increase in HMRC’s efforts:

  • 416,000 tax enquiries were conducted in the 2023-2024 financial year, up from 327,000 the previous year.
  • With the UK government addressing a “£22bn black hole” in national finances, HMRC is expected to escalate its efforts further, particularly targeting areas of underreported income.

Investigations may range from routine checks, such as VAT or PAYE reviews, to more in-depth examinations of business or personal transactions.

HMRC Investigation Support

Tax Dispute Resolution

Voluntary Disclosures

Self-Assessment and Compliance Reviews

Protect Yourself with Our Tax Investigation Fee Protection Service

At Jermyn & Co, we offer the Tax Investigation Fee Protection Service, designed to provide peace of mind and financial security during HMRC enquiries. Backed by Croner-i, a leading provider in the UK, this service covers our professional fees of up to £100,000, ensuring expert support without additional financial strain.

Key Features of Our Service:

  • Complete Representation – We handle the entire investigation process, liaising with HMRC on your behalf.
  • Fee Coverage – All professional fees incurred during the investigation are covered by the insurance policy.
  • Expert Advice – Gain access to our experienced team to build a robust defence and save time and money.

When you subscribe to our service, you’re safeguarded against the costs and complexities of a tax enquiry, allowing you to focus on your business or personal priorities. Terms and conditions apply, contact us for full details.

Why Do Taxpayers Get Investigated?

Tax investigations can be triggered for several reasons, including:

  • Random Selection
    Many investigations are initiated randomly, regardless of whether you’ve made any mistakes in your tax filings.
  • Specific Industry Focus
    Certain industries are under greater scrutiny, including:
    • Sectors with complex VAT or PAYE systems.
    • Businesses affected by IR35 regulations or employment status disputes.
  • Unusual Patterns or Data Discrepancies
    HMRC’s Connect database gathers data from multiple sources, including:
    • Banks, land transactions, and council tax records.
    • Digital marketplaces (e.g., eBay, Airbnb, Vinted).
    • Social media profiles.
    • Any discrepancies or unusual activity could raise red flags.
  • Side Hustles and Extra Income
    HMRC is increasingly focused on individuals earning through side businesses, such as pet breeding, property rentals, or selling on digital platforms.

The Consequences of a Tax Investigation

Tax investigations can be a significant burden, with consequences such as:

Time and Stress
Responding to HMRC’s requests and compiling documentation is time-consuming and stressful, potentially disrupting your business or personal life.

Expensive Professional Fees
Expert representation during a tax enquiry can incur substantial costs beyond your regular accounting fees.

Potential Penalties and Fines
If HMRC identifies errors, you could face penalties, interest on unpaid taxes, or legal action.

Jermyn & Co

What our clients say about their experience with us

Karl and his team have done our accounts for quite a few years now.We have always been happy with them and any queries we have are answered promptly.Highly recommend.


Amanda McFarlane via Google

Great service – always friendly and willing to advise. Goes the extra mile for you which is lovely and much appreciated in this day and age.


Charles Grewcock via Google

The team at Jermyn & Co has always been really helpful and efficient in resolving any issues. Karl has offered me good advice over the years and helped me to develop my business.


Peter Cairns via Google

Super efficient service, friendly staff and very professional. Highly recommended


Suzy Horth via Google

Very personable attention from staff. I value the advice from, frank discussions with, Karl


Matt Langley via Google

I have been a customer for a number of years and am a very small company in terms of turnover. The service and guidance I have received over the years from the staff especially Karl has been fantastic! I am always late getting my books in but they always turn them around in double quick […]


Nicky via Google

Definitely worth 5 stars. Would highly recommend.Extremely helpful with both my personal and business accounts.


Willewhar via Google

I have been a customer of Karl for some years now and have always found him and his team approachable, professional and friendly. All my questions and accounting issues are answered and dealt with quickly and he is always happy to help in anyway. I couldn’t recommend them enough.


Sue Hull via Google

Brilliant and professional service from Karl and his team. Always ready to help with any questions and supported us through running our business and helping us to sell when we retired.


Alison Maskrey via Google

I’ve just switched my accountant to here, and found out i had been paying unreasonable tax for my business with my previous accountant. Karl is very professional and very experienced. Great service!


Vinse M.Y. via Google
they do this job

Jermyn & Co

Frequently Asked Questions about Tax Investigations

Any taxpayer who submits a tax return is at risk of being investigated, whether they are a sole trader, limited company, or individual. Random selection and industry-specific targeting increase the likelihood of an enquiry.

The service covers our professional fees for responding to HMRC enquiries, preparing documentation, and representing you during the investigation.

Contact us to learn more about our Tax Investigation Fee Protection Service and how it can benefit you.

Our Accountancy Services

We offer a range of services to help you manage your finances and grow your business.

Why Jermyn & Co?

Why Choose Jermyn & Co for Your Accounts?

At Jermyn & Co, we’re more than just accountants – we’re your partners in success. Our accountancy services are designed to help you:

  • Stay Compliant – Ensure your financial records meet HMRC and Companies House requirements.
  • Save Time – Let us handle the numbers while you focus on growing your business.
  • Improve Efficiency – Streamline processes and reduce errors with expert support.
  • Plan for Growth – Use actionable insights to guide your financial decisions and achieve your goals.

With our proactive approach, you’ll gain the confidence and clarity you need to succeed.

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Why Jermyn & Co?

Why Choose Jermyn & Co for Business Tax?

Tax legislation in the UK can be complex and ever-changing, but with Jermyn & Co by your side, you’ll have access to expert advice and practical solutions.

Our services include:

With our expertise, you can focus on running your business while we handle the numbers. We’re committed to helping you stay ahead of deadlines and legislation changes.

Corporation Tax Compliance

VAT Services

R&D Tax Credits

Tax Planning and Advisory

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Why Jermyn & Co?

Why Choose Jermyn & Co for Personal Tax?

At Jermyn & Co, we understand that everyone’s financial situation is unique. Our personal tax services are designed to help you:

  • Optimise Tax Efficiency – Leverage allowances, reliefs, and deductions to minimise your tax liability.
  • Ensure Compliance – Stay on top of filing deadlines and HMRC requirements to avoid penalties.
  • Plan for the Future – Align your tax strategy with your long-term financial goals.
  • Simplify Tax Complexity – Let us handle the details so you can focus on what matters most.

From simple tax returns to complex financial arrangements, we provide expert advice and support tailored to your needs.

Proactive Tax Planning

Expert Guidance

Tailored Solutions

Stress-Free Compliance

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Why Jermyn & Co?

Why Choose Jermyn & Co for Corporate Finance?

At Jermyn & Co, we understand that every business is unique. Our experienced team offers a personalised approach to corporate finance, helping you:

  • Secure Financing – Access the funding you need for expansion, acquisitions, or working capital.
  • Plan for Growth – Develop tailored financial strategies to achieve your business objectives.
  • Manage Mergers & Acquisitions – Navigate complex transactions with confidence, from valuations to negotiations.
  • Optimise Financial Performance – Streamline processes, reduce costs, and maximise profitability.

Whether you’re a start-up seeking investment or an established business exploring new opportunities, we’ll provide the expert guidance you need to succeed.

Business Valuations

Mergers & Acquisitions (M&A)

Fundraising & Investment

Financial Modelling
& Forecasting

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Why Jermyn & Co?

Why Choose Jermyn & Co for HR Services?

At Jermyn & Co, we understand that every business is unique, and so are its HR needs. Our tailored HR services help you:

  • Stay Compliant – Meet the latest UK employment laws and regulations with ease.
  • Save Time and Resources – Let us handle the admin while you focus on growing your business.
  • Engage Your Team – Build a positive, productive workplace with our employee engagement solutions.
  • Grow with Confidence – Ensure your HR strategy aligns with your long-term business objectives.

Whether you need ongoing HR support or help with a specific issue, our experienced team is here to assist.

Payroll Management

HR Compliance

Employee Engagement & Retention

Training & Development

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Jermyn & Co

How We Help You Succeed

At Jermyn & Co, our priority is to protect your financial interests and minimise the impact of a tax investigation. Our proactive support includes:

  • Expert representation and preparation.
  • Comprehensive documentation management.
  • Guidance on avoiding future investigations.

With our Tax Investigation Fee Protection Service, you can face HMRC enquiries with confidence, knowing your professional fees are covered, and your defence is in expert hands.

Ready to Resolve Your Tax Investigation?

Talk To Us

Schedule a free consultation to discuss your case.

Review and Prepare

We’ll assess your tax affairs and prepare your response.

Resolve with Confidence

Let us handle communications and negotiations with HMRC.