CIS Tax Deduction Calculator
Use our CIS Tax Deduction Calculator to quickly estimate how much tax will be deducted from your payments under the Construction Industry Scheme (CIS).
Simply enter your gross payment, materials cost, VAT rate, and CIS status to see your net pay — both excluding and including VAT.
Calculator
Enter the gross payment (excl. VAT). Tax is deducted from the labour element (gross minus materials). This calculator shows VAT, labour element, tax deducted and net payment (excl. and incl. VAT).
Note: This tool provides an indicative calculation only. It assumes the labour element equals gross payment minus costs of materials. CIS deduction rates used: Verified 20%, Unverified 30%, Gross Status 0%.
How this calculator works
Under CIS, contractors deduct tax from the labour element only (not materials).
This calculator works by:
- Calculating the labour portion (gross minus materials)
- Applying the correct CIS deduction rate (20%, 30%, or 0%)
- Showing your net payment after tax
- Adding VAT where applicable
Who is this calculator for?
This tool is useful for:
- CIS subcontractors
- Construction workers
- Contractors working through agencies
- Anyone wanting a quick estimate of CIS deductions
Important Note
This calculator provides an estimate based on standard CIS rules. Actual deductions may vary depending on your individual circumstances.