Stop The Off-Payroll Tax

The UK's leading contractor site. 200,000 monthly unique visitors.

Support ContractorCalculator

Contribute Membership


How can we help you?

  • More calculations on the site?
  • More detailed explanations?
  • Bespoke calculations?
  • Ideas for enhancements?
  • General questions perhaps?

Please email us at and we will be happy to help out.