A focused suite of UK contractor tax calculators.

NetRate was built ground-up for the April 2026 tax rules. The dividend tax rise, employer NI 15%, and corporation tax marginal band changed the maths for nearly every UK contractor — yet most existing calculators still show 2025/26 numbers, sit behind lead-gen funnels, or hide their workings.

This site does the opposite. Calculators are free, ad-free, no signup. Every calculation is published openly on our methodology page, and every tax rate cites a HMRC source on our sources page.

The premium tier exists for people who want PDF reports and saved scenarios — not a paywall on the maths. The maths stays free, forever.

Calculations are informational, not tax advice. For decisions about your specific situation, consult a qualified accountant or tax adviser.