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IR35 Calculator
How to Use
Enter your daily rate and billable days to calculate your take-home pay if caught by IR35. Inside IR35, your income is treated as employment income — subject to PAYE tax and employee NI with no dividend advantages. Comparing this result with your outside-IR35 take-home illustrates the significant financial impact of an IR35 determination. Always seek specialist IR35 advice before accepting an engagement.
Frequently Asked Questions
❓ Frequently Asked Questions
Inside IR35 you lose the tax efficiency of taking salary plus dividends. Most contractors take home 15–25% less inside IR35 compared to outside, depending on rate and personal circumstances.