Got a letter from HMRC?
Find out exactly what it means.
HMRC letters can look alarming — but most are routine. The problem is knowing which ones actually need action, and what to do about it.
What OneLetter checks first
- What kind of letter this is
- Whether there is a deadline
- How urgent it appears
- Whether a deeper explanation would help
Information only, not legal advice. You can redact names, addresses and reference numbers before uploading.
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Upload this letter
Use a PDF, photo, PNG or TXT file, or paste the wording if you would rather not upload the document.
Minimum 40 characters. Free overview, no email needed.
Reading your letter...
- A detailed plain-English explanation of the letter
- Clear next steps, in order, with deadlines called out
- What could happen if you do nothing
- Your rights, options, and realistic routes to challenge or respond
- Who to contact, what to ask, and what information to keep handy
- A summary emailed to you so you can refer back to it
Secure payment via Stripe · Money-back guarantee · Reply Pack offered only after your breakdown
Why these letters are so hard to understand
HMRC letters are written in formal, technical language that often makes them sound more urgent or serious than they are. Reference numbers, tax codes, and legal terminology make it hard to know whether you're being asked to do something, informed of something, or warned about something.
Upload your HMRC letter and we'll tell you exactly what it means, what to do, and whether it's urgent.
Upload your letter — free overviewWhat you'll receive
A free overview, instantly
What it is, who sent it, any detected deadline, and how urgent it actually is. No email or card.
The Ultra Breakdown — £4.99
Full plain-English explanation in your inbox: what to do, your rights, what happens if you ignore it, who to contact.
Optional Reply Pack — £15
Prefer we draft your reply? Add a Reply Pack on the thank-you page after your Breakdown and we'll produce a copy-paste response.
Three clear steps
- ✓ What the letter is
- ✓ Who sent it
- ✓ Any detected deadline
- ✓ Urgency at a glance
- ✓ Plain-English explanation
- ✓ Step-by-step actions
- ✓ Your rights & consequences
- ✓ Who to contact for help
- ✓ Money-back guarantee
- ✓ Copy-paste reply
- ✓ Letter / email / appeal / phone script
- ✓ How to send & what to keep
- ✓ Added after your Breakdown
OneLetter provides information only. For complex legal matters, consult a solicitor.
Stop worrying. Start understanding.
Upload your letter now and see what it actually says — free.