Tax Risk & HMRC Enquiries

Our tax investigation support and fee protection service gives you expert representation and peace of mind when HMRC comes knocking.

Peace of mind

Full representation

Insurance cover

Minimal disruption

Service lead

Mark Martin

Partner and Director of Tax

HMRC investigations happen. Let us handle them.

Avoid sleepless nights and unexpected bills with Caldwell Penn’s expert support.

Even if you’ve done everything right, you can still be investigated.

Random checks. Compliance queries. Full-blown investigations. They all take time, stress, and money to deal with.

You may be:

  • Worried about the cost of responding to HMRC

  • Unsure how to handle tax enquiries or disputes

  • Lacking the time or expertise to respond effectively

  • Concerned about penalties or reputational damage

We give you expert protection before, during and after HMRC contact.

"Even if you’ve done everything right, an HMRC investigation can still cost you. This cover means it doesn’t have to."
Mark Martin
Partner and Director of Tax

Full defence and financial protection

From first letter to final resolution.

Our HMRC enquiry service includes:

  • Fee protection insurance up to £100,000 per claim (subject to policy terms, conditions and exclusions)

  • Full representation and correspondence handling

  • Strategic advice during investigations

  • Attendance at HMRC meetings

  • Coverage across Corporation Tax, VAT, PAYE, NICs, IR35, CIS, and Self-Assessment

  • Protection for directors’ personal tax affairs

  • Appeals cost cover

Simple setup. Comprehensive cover.

Support when you need it most.
  • Initial call to explain how the policy works

  • Cover activated as part of our annual support

  • If HMRC makes contact, we manage everything

  • All correspondence and negotiations handled

  • No surprise feeswithin the terms of the policy, we handle the claim with the insurer on your behalf

"This is about protecting your business from unexpected bills when you need support the most."
Bradley Goddard
Corporate Tax Specialist
"You can’t control when HMRC comes knocking, but you can control how prepared you are when they do."
Claire James
Personal Tax Specialist

Our promise

We promise to respond to every enquiry within one business day, providing a clear timeframe for the anticipated resolution.

Fast, proactive, and totally on your side.

  • Policy backed by our broker partner

  • Immediate representation when HMRC gets in touch

  • Clear explanations and guidance at every stage

  • Cover for a wide range of tax and compliance areas

  • Annual renewal reminders and ongoing eligibility review

Get protected before HMRC gets in touch

Book a discovery call and learn more.

Your key tax team

Mark Martin

Partner and Director of Tax

Claire James

Personal Tax Specialist

Bradley Goddard

Corporate Tax Specialist

Frequently asked questions

Yes. HMRC uses both targeted and random selection methods. Fee protection gives peace of mind either way.

Up to £100,000 per claim for professional fees, including appeals and representation.

Yes. It also includes IR35, CIS, Self-Assessment and other regulatory reviews.

Yes – director-level cover is included as standard for Limited Companies.

Important notes

This service does not guarantee that every claim or enquiry will be accepted by insurers

Coverage is subject to underwriting, policy exclusions, and insurer discretion

If insurers believe that the fault lies with you, or that your claim is not sufficiently substantiated, they may decline part or all of a claim

Standard terms, conditions, and exclusions apply

Our core sectors

Our expertise spans a wide range of industries, with 60% of our client base concentrated in the following core sectors:

Professional Services

Consultants, agencies, engineers, and other specialised firms providing expert professional services.

Technology & Innovation

SaaS companies, crypto businesses, software development firms, and tech start-ups.

Manufacturing & Logistics

Manufacturers, supply chain operators, warehousing businesses, and logistics providers.

While we specialise in these areas, our diverse client portfolio includes businesses across various industries, from retail to construction and manufacturing to hospitality.

No matter your sector, we’re equipped to support your growth and success.

Trusted by businesses like yours

"Caldwell Penn's transparency, professionalism, attention to detail, and friendliness distinguish them from all other firms we have previously engaged. They have exceeded our expectations by additionally offering R&D advice, which has significantly benefited our operations."
Allaero Limited
"While it’s hard to get excited about an audit, Caldwell Penn made the experience as seamless as possible. Communication was clear and effective, and the management letter provided valuable insights for our business. We highly recommend their services to any business in need of a thorough and efficient audit."
UK Lanyard Makers Ltd
"Caldwell Penn handle everything for us with a proactive, tailored approach. Their dedicated team understands our goals, ensuring we never miss tax-saving opportunities. They’re more than accountants, they’re partners in our growth."
Syon Creative Ltd
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