NIM01299 - Class 1 structural overview: abolition of secondary NICs for those employees under the age of 21: assessment

The examples below use the rates that apply for the 2025 to 2026Ìýtax year.

Example 1

A monthly paid employee is under the age of 21 at the time earnings of £1,600 are paid. The earnings fall below the Upper Secondary Threshold (UST).

Threshold NICs calculation NICs due
Primary £1,600Ìý−ÌýÂ�1048 = £552Ìý× 8% £44.16
Secondary £1,600Ìý−ÌýÂ�417 = £1,183Ìý× 0% £0
Total NICs due Ìý £44.16

Example 2

A monthly paid employee is under the age of 21 at the time earnings of £5,000 are paid. The earnings are above the monthly UST.

Threshold NICs calculation NICs due
Primary £4,189 - £1048 = £3,141 x 8% £251.28
Primary £5,000 - £4,189 −ÌýÂ�811 × 2% £16.22
Secondary £4,189 - £417 = £3,772 x 0% £0
Secondary £5,000 −ÌýÂ�4,189 = £811 × 15% £121.65
Total NICs due Ìý £389.15