The UK's leading contracting site. Trusted by the contractor market for 25 years.

New IR591 calculator released

Contractor Calculator

We are pleased to announce that ContractorCalculator.co.uk now contains an IR591 calculator.

Calculate the impact IR591 has on your take home pay.

Just enter your hourly rate and we will do the rest.

Example: Rate: £15 per hour;

Results:

  • You are heavily affected by IR591.
  • Your corporation tax increases by £1,637.
  • Your net income per month decreases by £134 (8.08%) to £1,529.

Calculate how you are affected at ContractorCalculator.co.uk.

Published: Monday, 22 March 2004

© 2025 All rights reserved. Reproduction in whole or in part without permission is prohibited. Please see our copyright notice.