UK Self-Employment & Sole Trader Tax Calculator 2025/2026 (Income Tax & Class 4 NIC) | NationRules
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HMRC Self Assessment Rates 2025/2026 Verified

UK Self-Employment & Sole Trader Tax Calculator

Calculate exact Self Assessment Income Tax, Class 4 National Insurance, and 50% Payments on Account for UK sole traders and freelancers.

Sole Trader Tax Evaluator

Equipment, travel, office, software expenses
Employment, rental, or dividend income
GOV.UK VerifiedOfficial UK Government References & Legal Sources
Sole Trader Rates 2025/2026
Trading Allowance£1,000 / yr
Class 4 NIC Main Rate6%
Class 4 NIC Upper Rate2%