Self-employed · 2026/27
Sole trader tax checker
See which taxes and registrations may apply when you work for yourself.
Inputs
Estimate
Enter your details and click Calculate to see an estimate. No data is sent to HMRC.
File these figures
When you are ready to submit, start a guided Self Assessment return in QuickTaxFiler.
Get startedSupport
Questions about your return?
Product support is by email and in-app chat. Sales and billing enquiries can use the office number listed in the footer.