Self-employed & small business

Self-employed? Know what you owe and when.

Quick tools for the 2026–27 tax year, using HMRC's published rates. Estimates only: your real bill depends on your full situation.

Self-employed income before expenses this tax year (£)

I haven't sent a Self Assessment return before

Profit for 2026–27 (£)

Where do you live?

Profit = income minus allowable expenses. Assumes you have no other income such as a salary or pension.

Self-employed turnover plus rental income, before expenses (£ a year)

Business miles by car or van this year

Hours worked at home per month

Key dates for 2026–27

Each answer comes from HMRC or GOV.UK, checked 28 September 2026.

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