MTD for Income Tax Checker
Making Tax Digital for Income Tax: are you in, and from when?
For sole traders and landlords in the UK who keep hearing about Making Tax Digital and want to know which April applies to them. No signup, nothing leaves your browser.
- Runs
- In your browser
- Signup
- Not needed
- Licence
- MIT, open source
- Topic
- Money and paperwork
- 1.
Use it free
Open it in your browser. The first result needs no signup.
- 2.
Run it yourself
Open source under MIT. Take the code to your own server.
- 3.
Stay in touch
One email when it gets a new feature. Nothing else.
What it does
- Up to five questions: self-employment or property income, exemptions, and qualifying income over £50,000 in 2024-25, over £30,000 in 2025-26 or over £20,000 in 2026-27.
- Shows your start date: 6 April 2026, 6 April 2027 or 6 April 2028, or that you are not in yet. "Not sure" answers give the earliest and the latest possible date.
- Adds up your qualifying income: self-employment turnover plus your share of property income, before expenses, the way HMRC counts it.
- Lists your next deadlines: quarterly updates on 7 August, 7 November, 7 February and 7 May, the tax return on 31 January, and where penalty points start (2027-28).
- Puts those deadlines in your calendar (.ics file made in your browser, alert 7 days before each) or lets you ask for an email reminder.
- Every rule links to the HMRC page on GOV.UK it comes from, with the date it was checked. English and German, share or print your result.
Why I built it
Whether Making Tax Digital applies to you depends on two or three numbers from your tax returns, yet most explanations make you read a whole page to find your date. I built the German e-invoice deadline checker for the same kind of question, and this is its UK twin: your start date and your quarterly deadlines in under a minute. It also tells me how many people in the UK use my tools and which deadline they face, so I know what to build next.
Hafiz
Limits. Not tax advice. The checker summarises HMRC guidance on GOV.UK as of 19 October 2026 (thresholds, exemptions, quarterly deadlines, penalties); check with HMRC or an accountant before you rely on it.
Run it on your own server
One static folder (HTML, CSS, JavaScript), no build step and no dependencies. Copy public/ to any web server or run python3 -m http.server.
- Stack
- HTML, JavaScript
- Licence
- MIT
Also for your paperwork
Newsletter
Hear when MTD for Income Tax Checker gets better.
One email when MTD for Income Tax Checker or another tool gets a real update. A few times a year, no tracking.