U
UK Tax Tools

Class 2 National Insurance


A flat-rate National Insurance contribution historically paid by self-employed people to build entitlement to the State Pension and other contributory benefits. From 6 April 2024, self-employed individuals with profits above the Small Profits Threshold are treated as having paid Class 2 NI without actually making a payment. Those with lower profits can still pay voluntarily to protect their State Pension record.

Related Terms

Try the calculator

Use our free tool to see how class 2 national insurance affects your tax.

Last updated 3 May 2026Tax year 2025-26

Data sources: HMRC (gov.uk/hmrc)

This tool is general information only, not financial advice.

Reviewed by UK Tax Tools Editorial Desk

Read our methodology →