Tag
Class 4
2 tools — updated for the 2026/27 tax year
- National Insurance Calculator
Class 1, 2, and 4 NI — for employees and the self-employed.
NI & self-employment - Class 4 NI Calculator
Class 4 NI on self-employed profits — 6% between £12,570 and £50,270, then 2% above. Breakdown by band.
NI & self-employment
Browse by tag