Contractor Pro

What's your real take-home? Compare IR35 options, search jobs with instant take-home pay, and see how contractor rates stack up against permanent salaries.

ContractorPro is the essential free app for UK contractors. Compare working arrangements, search jobs with instant take-home pay, and generate professional invoices — all in one place.

Is It Worth It?

Enter your day rate and instantly see:
• Your total wealth across Outside IR35, Inside IR35, and Umbrella • Equivalent rates to match your take-home when switching IR35 status • Side-by-side comparison of any permanent salary vs contractor day rates • Save and share detailed breakdowns as PDFs

Job Search

• Browse contract and permanent roles from Reed, Adzuna and more • See your actual take-home pay calculated on every listing • Full breakdown of tax, NI, and net pay per job • Apply directly from the app

Full Picture

• See the complete financial picture for your household • Factor in multiple contracts, spouse income, and childcare • Understand the real impact of your working arrangements

Invoice Generator • Professional PDF invoices • Save client profiles • Share directly with clients

Tax Calculations

• Income Tax, National Insurance • Corporation Tax, Dividend Tax • Scottish Tax Rates supported • 2025/26 rates

All features are completely free — no subscriptions, no paywalls.

Calculations are estimates only. Consult a qualified accountant for personal advice.