Sole traders, landlords, companies and charities

Filing deadline calculator

Choose how you are set up and enter a few dates. See what you file, who it goes to and when it is due.

How you are set upPick the one you file for. Run it again for each if you have more than one.
Tax yearThe tax year runs from 6 April to 5 April.

An illustration, not advice

This shows standard deadlines from HMRC, Companies House and Charity Commission guidance on GOV.UK at 27 October 2026. HMRC confirms a company's Corporation Tax accounting periods by letter, and your own Companies House and Charity Commission records show your exact dates. It assumes a company is not large enough to pay Corporation Tax in instalments and has not changed its year end. It does not cover payroll, partnerships, a director's own Self Assessment return, or Scottish and Northern Irish charities. Charitable companies may also have a Corporation Tax return to file. For charity income bands, use our charity filing deadline calculator.

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