Free tools
Calculators we actually use in the product.
HMRC rates, no signup. Built for UK practices and the people they file for.
Live2026/27 rates
HMRC mileage claim calculator
Calculate current or previous car mileage rates for 2026/27, 2025/26 and 2024/25. Add journeys and download a claim summary.
Open the calculator
Live
CIS deduction calculator
Labour after materials, plant hire and VAT. Download a payment and deduction statement.
Open the calculator