About UK Deadline Checker

Free tools that turn UK rules into the dates that apply to you.

UK rules for tax, property and business are published in full on GOV.UK, but the bit you actually need (your date) is often spread across several pages. This site asks a few questions and does the working out for you.

How the tools are checked

Every tool is built from official sources, mainly GOV.UK and HMRC, and each page links to the guidance it uses and says when it was last checked. When rules change, usually in April, the tools are updated.

What this site isn’t

It isn’t financial, tax or legal advice. The tools give general information based on the published rules. If your situation is unusual, check with HMRC or a qualified adviser.

How it’s funded

The site is free to use and paid for by adverts and, where genuinely useful, links to software or services. Some of these links may earn us a commission. That never changes what a tool tells you.

Spotted a mistake?

Let us know and it’ll be checked and fixed.