Millions of workers given National Insurance tax cut - how is your salary affected?

As of 2026, the National Insurance (NI) landscape has been transformed by successive rate cuts.

While the primary threshold remains aligned with the Personal Allowance at £12,570, the main rate of employee Class 1 National Insurance was slashed from 12% down to 8% across 2024. For the average worker on £35,400, this represents an annual saving of over £900 compared to 2023 levels.

Crucially, the previously proposed Health and Social Care Levy was abolished before it could take full effect, meaning workers are seeing the full benefit of these lower percentage rates in their take-home pay.

Current Treasury analysis shows that the combined NI reforms are particularly beneficial for the self-employed. With the total abolition of Class 2 NICs and the reduction of Class 4 NICs from 9% to 6%, a self-employed person earning £28,000 now saves approximately £650 a year.

Furthermore, the 1.25% levy for those over State Pension age was scrapped; consequently, individuals working beyond pension age continue to be exempt from National Insurance on their earnings. While higher earners still pay the 2% rate on earnings above £50,270, the 4-percentage-point cut to the main rate means that almost all taxpayers are paying less NI than they were three years ago.

Financial analysts warn that while NI rates are lower, the 'stealth tax' of fiscal drag remains a significant burden in 2026. Because the £12,570 threshold has remained frozen while average wages have grown, more of a worker's income is being captured by the tax system. With inflation now stabilized near the 2% target, the primary threat to spending power is no longer soaring prices, but the fact that the Personal Allowance and NI thresholds have not risen in line with earnings.

This means that for many, the 'cash boost' from the NI cuts is being partially offset by the higher amount of income tax they are paying as their salaries increase.