04/09/2026
Started a business or became self-employed during the last tax year?
There’s a date worth putting in your diary now:
❗️5 October 2026
If you need to complete a Self Assessment tax return for the 2025/26 tax year and haven’t registered before, this is normally the deadline to tell HMRC.
That could include people who started working for themselves between 6 April 2025 and 5 April 2026.
October might feel a little way off, but registering early means one less thing to suddenly remember when January rolls around.
Not sure whether you need to complete a tax return?
Ask us. It’s always better to check - 01296 681341