Tools

Free calculators and checkers for UK employees and self-employed people.

• Salary calculator

  Take-home pay after tax and NI.

• Compare salaries

  Two scenarios side by side.

• Self-employed

  Class 2, 4 and income tax on profit.

• Tax code checker

  Decode your HMRC tax code.

• Why is my tax high?

  Emergency codes and common causes.

• SA deadlines

  Every Self Assessment deadline with countdowns and calendar downloads.