About TaxPlain

TaxPlain helps self-employed people and small business owners understand the UK tax calculations they already have. It translates dense Self Assessment and CT600 outputs into a structured, plain-English explanation.

Tax software is good at producing numbers, but it rarely explains why a bill changed or which parts deserve a second look. Our aim is to make those figures easier to question, verify and discuss—without pretending uncertainty does not exist.

TaxPlain does not replace professional tax advice or file returns. It gives you a clearer starting point, flags incomplete information and helps you arrive at the next conversation better informed.