UK Self Employed Tax Template 2025/26

January arrives the same way every year. Quietly at first, then all at once.

Most sole traders scramble in the final weeks — chasing receipts, reconstructing records, filing on numbers they are not confident in. Miss the deadline and the penalties start immediately. Miss the payment and interest accrues at 7.75 percent daily. Then come the letters. Then the reminders. Then HMRC making clear they already know more about your income than you thought they did.

None of this has to happen.

The UK Sole Trader Tax Template 2025/26 calculates your exact Self Assessment bill today — income tax, Class 4 NI, student loan, bank interest and payment on account. Enter your P60 figures if you had employment income and the template does the rest.

Know your number. Pay what you owe. File with confidence. Move on.