Just Received a COP9 / Investigation Letter from HMRC?
You’re Not on Your Own – We Can Help Get This Sorted
We help people in exactly your position every week. A quick call is all it takes to feel calmer and know what happens next.
Just Received a COP9 / Investigation Letter from HMRC?
You’re Not on Your Own – We Can Help Get This Sorted
We help people in exactly your position every week. A quick call is all it takes to feel calmer and know what happens next.
- Ex-HMRC inspectors available
- One point of contact
- Plain-English advice
You're not the first person to open this letter today
Most people who contact us feel exactly the same way you do right now. The letter is deliberately scary. That doesn’t mean everything is lost.
We’ve dealt with hundreds of these cases. The majority end civilly, with manageable penalties and no criminal prosecution.
How it works
Step 1
Free initial telephone call (15–20 minutes)
We call you as soon as possible – usually within the hour.
You tell us what the letter says. We explain in plain English what it actually means, how serious the situation really is, and your realistic next moves.
Step 2
Same-day introduction to a top specialist
If you want to move forward, we personally introduce you (three-way email, same day) to one of the UK’s leading tax investigation specialists who is perfect for your exact situation.
You deal direct with them. We stay copied on emails for moral support – at no extra cost.
Step 3
You’re no longer on your own
From this point the specialist takes over. Most cases end civilly with manageable outcomes. You finally get to sleep again. That’s it.
No big fees up front. No complicated packages. Just immediate calm and a clear path forward.
The questions we get asked most
1. Can I appeal a tax assessment?
Yes. You have 30 days to appeal or request an HMRC internal review. If you still disagree, you can take the case to the independent Tax Tribunal.
2. Do I need a solicitor for a tax investigation?
For complex, deliberate, or COP9 cases, yes. Solicitors offer legal privilege and can represent you at the Tax Tribunal, which accountants cannot.
3. What is tax investigation help?
Specialist support from accountants or solicitors who deal with HMRC enquiries — helping reduce stress, manage documents, and minimise financial risk.
4. Need confidential help?
If you’ve received an HMRC letter or are worried about your tax affairs, contact us for a free, confidential, no-obligation discussion. Our team has helped hundreds of individuals and businesses achieve the best possible outcome.
Latest Guides
Free plain-English articles – updated regularly

HMRC Tax Investigation UK: What Happens and How to Protect Yourself
Being contacted by HMRC can feel stressful — but knowing the process and your rights

Top 7 Mistakes People Make During a Tax Investigation
SolutionHave experts manage all communications and protect your position from day one.

Aspect vs Full HMRC Enquiry: What’s the Difference? (2025 Guide)
Not every tax investigation is the same. Understanding which type HMRC has opened can help
A Few Recent Examples
“Received a COP9 letter for undeclared offshore income. I was convinced it was going criminal. They explained everything calmly, handled the disclosure, and it was settled civilly in 13 months. I slept properly for the first time in weeks after the first call.”
– Company director, North West
“HMRC opened an investigation into my property rental income. Thought I’d lose the houses. They took over, dealt with all the meetings and paperwork, and got it closed with penalties I could manage.”
– Landlord, South East
“Ignored the first letter – big mistake. Second letter threatened prosecution. They stepped in, turned it around, and it finished civil. Wish I’d called on day one.”
– E-commerce business owner
“Best decision I made was picking up the phone. They were straight with me from the start and took all the stress away.”
– Self-employed consultant
The call is completely free and confidential
Just a proper conversation with someone who deals with these letters every day.
- or ring 0203 442 9049 right now if you’d rather speak straight away