I have salary and self-employed income: what should I do?

If you have both PAYE salary and self-employed profit, your marginal rate can change. Use this guide to avoid surprises and input the right context.

Other income can change the tax band your self-employed profit falls into.
Use the calculator other-income input (when available) so the estimate reflects your context.
Verify official filing obligations on GOV.UK for mixed income situations.

Why mixed income matters

Salary may already use part of your allowances and tax bands. A self-employed estimate that ignores other income can be misleading for planning.

If the tool provides an other income field, use it so the estimate better reflects your marginal position. Keep the result as planning, not filing.

Assuming self-employed profit is taxed independently from salary, or forgetting other taxable income.

Not tax advice. This page is an educational guide. For official rules, verify the sources below.

Last updated: 2026-04-20

Is salary handled automatically?

Not automatically. Use available inputs or treat the estimate as a baseline.

Does this page tell me what to do legally?

No. It explains concepts and links to official guidance.

Where can I check who must file?

Use GOV.UK guidance on who needs to send a tax return.

For official rules and definitions, verify with the references below.