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P800 Refund

Independent UK guidance for P800 refunds and HMRC letters.

Official HMRC links matter. This site explains the process in plain English and points readers towards official GOV.UK routes.

About this site

About P800 Refund

Independent UK guidance for readers checking HMRC letters and official GOV.UK routes. We are not affiliated with HMRC or GOV.UK.

I started this site after receiving my own confusing P800 letter and realising how hard it can be to find a simple explanation in plain British English. P800 Refund is an independent information site for people in the UK who want to understand what a P800 means before they use any official service.

The aim is straightforward: explain HMRC guidance clearly, highlight the safest next step, and point readers back to official GOV.UK routes when they need to claim, sign in or verify something important. This site does not process claims, access tax records or replace GOV.UK. It exists to make the official process easier to understand.

Content is checked against current GOV.UK and HMRC guidance, and key timing or route changes are updated when the process changes. If you want the main overview first, start with the P800 refund guide or the P800 explainer. For important context about independence and limitations, please also read our Disclaimer and Privacy Policy.

Founder's note

What began as one confusing letter turned into a small project with a simple goal: make HMRC wording easier to follow without imitating HMRC itself. If a page here helps you understand your letter before you head to GOV.UK, it is doing the job it was built to do.

What this site aims to do

Understand P800 clearly

We explain the process without pretending to be HMRC or GOV.UK.

Plain-English HMRC guidance

We rewrite tax wording in plain British English so readers can act with more confidence.

Official GOV.UK routes first

We send readers back to GOV.UK when they need to claim, sign in or verify a route.

Editorial standards

The working rule on this site is simple: official guidance comes first. Before changing a summary, we check the current GOV.UK page, compare it with the wording used by HMRC, and then update the plain-English explanation if the route, timing or repayment guidance has changed.

  • We check key GOV.UK pages before updating summaries or timelines.
  • We show the relevant tax year and review date on pages where timing matters.
  • We link readers back to official .gov.uk routes for claims, sign-in and tax account actions.
  • We welcome corrections and suggestions if a page needs to be clarified or updated.

If you need the practical next step after reading this page, go to the step-by-step claim guide.

Feedback

Found an error, a broken official link or wording that could be clearer? You can reach the site at [email protected]. We use feedback to correct pages, tighten explanations and keep official routes accurate.

Where to go next

Return to the main guideGo back to the homepage for the full site overview and safest entry point.View the HMRC reference number sampleSee where the reference number and tax year usually appear on a P800 letter.Read the tax refund online guideMove to the practical guide if your letter says you can continue online.

Reviewed by James Wells, 15 May 2026

Last updated: 15 May 2026