Self‑Employed National Insurance (Class 2/4)

Estimate Class 2 and Class 4 NI based on profits. Thresholds/rates editable.

Annual profits (£)

Class 2 rate (£/week)

Weeks liable

Lower Profits Limit (£)

Upper Profits Limit (£)

Class 4 main rate (%)

Class 4 above UPL (%)

Calculate