Finance Calculator

Would you like to practice some Income Tax and National Insurance questions? Try out these tools.

NOTE: The calculators and tables below are based on what the brackets will be for the 2025 exams.

For Income Tax, the standard personal allowance is £12 570.

However, your personal allowance is reduced if your income is more than £100 000. The personal allowance goes down by £1 for every £2 that your income is above £100 000

This calculator works out how much Income Tax and National Insurance someone earning under £100 000 per year would pay. You can use it to check your answers to other questions.

NOTE: This is based on what the brackets will be for the 2025 exams.