On 29 April, with very little fanfare, the National Insurance Contributions (Employer Pensions Contributions) Act 2026 received Royal Assent. From April 2029, employees will be able to sacrifice only £2,000 a year of salary into their pension before National Insurance kicks in. Above that, both the worker and the employer pay extra NICs. The Office for Budget Responsibility's own number for the take is £4.7 billion in 2029-30 alone.

Stripped of its language, this is a tax rise. Specifically, it is a tax rise on the people doing exactly what every government for forty years has begged them to do: save for their own retirement so they don't lean on the state in old age.

What Salary Sacrifice Actually Is

Salary sacrifice is straightforward. A worker agrees to take a slightly lower headline salary, and the employer pays the difference straight into a workplace pension. Both sides save National Insurance on the sacrificed amount. Roughly 1 in 5 UK workplaces use it. Teachers do. Nurses do. Engineers, factory workers, supermarket managers, small business owners. It is the single most important reason ordinary people in private-sector jobs build any meaningful pension at all.

Cap the relief at £2,000 and the maths immediately gets ugly. A worker earning £45,000 and contributing 10% via salary sacrifice — £4,500 a year — sees roughly half of that lose its NIC efficiency. Their employer is hit too. Many employers will simply cut the matched contribution to compensate, leaving the worker materially worse off in retirement.

The House of Lords Tried to Stop This

The Lords passed an amendment to lift the cap from £2,000 to £5,000. Labour MPs whipped it down. They could have made this proportionate. They chose not to. Personnel Today is already reporting that the majority of workers don't understand what's happening to their pension and the scheme's most basic mechanics. That is not an accident — when a government wants to raise revenue from a mechanism most people don't understand, the politics are easier.

The pretext is that this is a fairness measure to prevent higher earners getting bigger NIC reliefs. The reality is that the cap is so low it will catch ordinary middle-income workers who are sacrificing 8 to 12% of their salary to build a half-decent pension. It is not aimed at the rich. It is aimed at the middle, because that is where the money is.

A Pattern of Pension Raids

This is the latest in a sequence. Labour has already locked in fiscal drag on the pensioner triple lock, frozen the personal allowance through the period people are most likely to be saving heavily, brought AIM shares into the inheritance tax net, raised employer NICs through the Employment Rights Act package, and signalled it intends to take greater control over pension fund investment mandates. Each move on its own is described as small. Together they amount to a £400 billion power grab over how the British public's retirement money is taxed and deployed.

Pension policy used to be one of the few areas where governments tried to act with consistency, because retirement is a long game and people need to plan. Labour has thrown that out. Workers I speak to in Lancashire are simply giving up on the calculation — they have no idea what the rules will be when they retire, so they assume the worst and save less. That is precisely the opposite of the behaviour the country needs.

What Reform UK Would Do

Reform UK would keep salary sacrifice intact for pensions across the board. We would protect the triple lock. We would raise the personal allowance to £20,000 so that working people can build savings and contribute to pensions out of untaxed income. And we would publish a guarantee that any future pension changes would have a minimum five-year lead time, so that people can actually plan.

Labour calls this £4.7 billion a year in revenue. I call it £4.7 billion a year of pension contributions that won't get made, retirements that will be poorer, and trust that will be harder to rebuild. The country was promised a government that would reward responsibility. Instead it got one that is fining responsibility.