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Self-Assessment Deadline Checker

Never miss a Self-Assessment deadline again. Get your personalised timeline and reminders.

Today: Wednesday, 25 March 2026

Making Tax Digital is coming – 6 April 2026. If you’re self-employed or a landlord earning over £50,000, the way you report income to HMRC is changing. You’ll need to submit quarterly updates using compatible software – on top of your usual Self Assessment filing. Use this tool to see your key deadlines.

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  • MTD updates prepared automatically and ready to file quarterly
  • Year-end Self Assessment filed – submit your final declaration to HMRC
  • 2025/26 Self Assessment filed for free – connect your HMRC account to unlock
  • Auto Accountant takes care of your bookkeeping
  • 24/7 Auto-Accountant support – jargon free answers to any tax queries
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  • Personalised tax calendar for your business
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Making Tax Digital – frequently asked questions

Making Tax Digital (MTD) for Income Tax is a new HMRC requirement that changes how self-employed people and landlords report their income. Instead of one annual Self Assessment return, you’ll need to keep digital records and submit income and expense summaries to HMRC four times a year, using compatible accounting software.
It depends on your gross income from self-employment and property combined (before expenses). If that total is over £50,000, MTD applies to you from 6 April 2026. The threshold drops to £30,000 from April 2027, and to £20,000 from April 2028. Income from employment, pensions, dividends, or investments doesn’t count towards the threshold.
You’ll need to submit four updates per year, due on 7 August, 7 November, 7 February, and 7 May. Each update covers your cumulative income and expenses for the year so far – not just the quarter. If you run more than one business or property, you’ll need a separate set of updates for each.
Yes – but under MTD it’s called a Final Declaration. After your four quarterly updates, you confirm all your income sources (including employment, dividends, etc.) and submit your final tax position. The deadline is still 31 January, the same as the current Self Assessment filing deadline.
Yes. HMRC won’t provide a free filing tool for MTD – you’ll need to use HMRC-recognised accounting software or a bridging tool that links to a spreadsheet. The existing HMRC online return will only remain available for people outside the MTD regime.
In the first year (2026/27), HMRC won’t issue penalty points for late quarterly submissions – a soft landing to ease the transition. After that, a points-based system applies: accumulate enough points and you’ll receive a £200 fine. The soft landing does not apply to your year-end Final Declaration.

Let ANNA handle your Self-Assessment

Track income, manage expenses, and file your Self-Assessment automatically. No spreadsheets, no stress – and we’ll send you tax reminders well in advance of every Self-Assessment deadline.

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