First Business Steps

Free tool

Check whether you need to register for Self Assessment

Answer 5 questions about how you earn money and we'll tell you whether Self Assessment is likely to apply to you.

What you get

  • A clear likely / unlikely / worth checking result
  • The key reasons behind your result
  • What to do next
  • Pointers to the official HMRC guidance
About 1 minute · 5 questions

Based on HMRC and Companies House guidance. General information only — not professional advice.