Countdown to Self Assessment Deadline (UK)
UK Self Assessment online deadline: 31 January (paper return: 31 October).
- Next deadline
- —
- Days remaining
- —
- Hours
- —
- Minutes
- —
Late filing: £100 penalty immediately; additional £10/day after 3 months (capped 90 days); larger of £300 or 5% tax due after 6 months and again after 12.
About this tool
Countdown to Self Assessment Deadline (UK) is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Tools — Files & Productivity. Browse more Tools — Files & Productivity tools.