CIS deduction calculator
Estimate the deduction on the labour element after qualifying materials. Confirm the actual basis and rate before payment.
Get an immediate result without registering. Each tool explains its formula, source and limitations.

Estimate the deduction on the labour element after qualifying materials. Confirm the actual basis and rate before payment.
Calculate net, VAT and gross figures using the standard, reduced or zero rate.
Choose the invoice date and number of calendar days in the agreed payment term.
Estimate simple statutory interest for an eligible business debt. Check the contract and current rate before claiming.
Estimate an amount from business miles and the current vehicle rate for the selected tax year.
See what remains after planned business costs and desired personal income.
Enter invoice details, review the preview and use your browser to print or save it as a PDF.
Calculate the balance to invoice after an accepted quote and deposit.