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Tax estimate limitations

Last updated: 7 October 2026

Simple Self-Employed produces planning estimates from your recorded income, reviewed transactions, allowances, PAYE deductions, student-loan plan and other inputs for supported UK tax years.

Estimates are not returns

An estimate is not a filed return, HMRC calculation, guarantee of liability or substitute for advice. Production HMRC filing is not available to beta users.

Check the inputs

Results depend on complete and accurate records, classifications and circumstances. Review imported transactions, income sources, the selected tax year and student-loan plan. Some reliefs, benefits, capital gains and unusual circumstances remain outside the supported scope.

Professional review

Use the estimate to plan and ask better questions. Obtain advice from a qualified accountant or tax adviser where accuracy or compliance decisions matter.