UK Tax Tool 2026

UK Tax Tool 2026 is a compact, offline-capable UK tax calculator designed for quick payroll estimates. It supports reverse salary calculations to determine the gross you need for a target take-home pay, and provides a detailed breakdown of Income Tax bands, National Insurance, VAT, and other deductions across flexible pay periods.

As a Chrome extension, it works offline, offers instant results as you type, and lets you email or export the calculation breakdown for sharing or backup. Optional settings cover tax codes, pensions, student loans, benefits-in-kind, childcare vouchers, and more to improve accuracy.