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IR35 Calculator

Use this calculator to assess the impact that the original IR35 legislation has on your net income.

IR35 was introduced to identify 'disguised employees' and ensure they pay the correct amount of tax. But the legislation is highly complex and HMRC often attempts to categorise contractors within its boundaries.

Contractors who are caught by IR35 pay significantly more tax. There are many strategies you can adopt to ensure you stay outside IR35 - find out how from our comprehensive series of IR35 guides.

Please enter your details to calculate the impact of IR35 on you:

NOTE: The tax calculations under the new Off-Payroll legislation are different, and not as high for the contractor. Please use our Off-Payroll Calculator if you wish to calculate your tax under the new legislation.

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