Cross-border charity? Run the check once per regulator — each has its own clock.
Not sure? Your registration certificate or the public register says. Charitable companies also answer to Companies House.
The last day of your accounting year — 31 March and 31 December are the most common. Use your most recent year end.
The calendar file adds each deadline to Outlook, Google or Apple Calendar, with a warning one month before. Prefer a running list? Our free compliance calendar spreadsheet tracks these all year.
General guidance calculated from the standard filing rules (Charity Commission, OSCR, CCNI and Companies House), correct as at July 2026. Your governing document, regulator correspondence or an extended/shortened accounting period can change your dates — the register entry for your charity is definitive. Not legal advice.