What employers and employees need to know about the £2,000 cap
In the Autumn Budget 2025, Chancellor Rachel Reeves announced significant changes to salary sacrifice pension arrangements that will affect millions of UK workers and their employers.
From April 2029, the National Insurance (NI) relief available on salary-sacrificed pension contributions will be capped at £2,000 per year. This marks a substantial shift in how workplace pensions operate and will have wide-ranging implications for both employers and employees.
What is salary sacrifice?
Salary sacrifice has been a cornerstone of workplace pension savings for decades. Under this arrangement, an employee contractually agrees to reduce their gross salary or forgo a bonus in return for their employer making an equivalent contribution to their pension scheme.
The key benefit has always been the National Insurance savings. Because the sacrificed amount is treated as an employer pension contribution rather than salary, both employee and employer avoid paying NICs on that amount. When combined with income tax relief on pension contributions, this makes salary sacrifice one of the most tax-efficient ways to save for retirement.
Currently, around a third of private sector workers use salary sacrifice arrangements, with the proportion rising to 67% at larger firms and up to 85% at the biggest employers.
What’s changing?
From 6th April 2029, the NI exemption will be capped at £2,000 per tax year for each employee. Any salary-sacrificed pension contributions above this threshold will attract both employee and employer NICs, as if they were ordinary earnings.
Based on current NIC rates:
- Employees will pay 8% NICs on contributions above £2,000 (for earnings up to £50,270) or 2% for earnings above this threshold
- Employers will pay 15% NICs on the excess amount
It’s crucial to note that this change only affects the NI treatment of salary sacrifice arrangements. Income tax relief on pension contributions will continue to apply as normal, up to the annual allowance (currently £60,000 or 100% of earnings, whichever is lower).
Who will be affected by changes to salary sacrifice for pensions?
The impact of the announced change will vary significantly depending on earnings and contribution levels:
Lower to middle earners – limited impact:
An employee earning £35,000 and contributing 5% (£1,750) through salary sacrifice will not be affected, as their contributions remain below the £2,000 cap. Similarly, someone on £40,000 contributing 5% (£2,000) will just stay within the limit.
Middle to higher earners – notable impact
An employee earning £60,000 and contributing 6% (£3,600) will see NICs applied to £1,600 of their contributions. At current rates, this means:
- Additional £32 per year in employee NICs (2% rate for higher earners)
- Additional £240 per year in employer NICs
Higher earners and generous savers – substantial impact
Someone earning £200,000 and sacrificing 10% (£20,000) faces significantly higher costs, with NICs on £18,000 of contributions translating into hundreds of pounds in additional annual costs for both employee and employer.
The Revenue Impact
According to the Office for Budget Responsibility, this measure is expected to raise £4.7 billion in 2029-30 and £2.6 billion in 2030-31. The Chancellor described the cap as a “pragmatic step” to allow those on low and middle incomes to continue benefiting from salary sacrifice whilst reducing the cost of relief, which she said relates disproportionately to those on higher incomes.
Implications for Employers
Employers now face several important considerations over the next three years:
Financial planning: The additional employer NIC liability could be substantial, particularly for organisations with generous pension schemes or high-earning workforces. The increased costs come shortly after the employer NIC rate increase announced in the previous Budget, adding further pressure on payroll budgets.
Industry experts suggest that employers should model the cost impact now to understand their exposure and plan accordingly.
Payroll and administration: Employers will need to update their payroll systems to track salary-sacrificed pension contributions against the £2,000 cap for each employee. This will require ensuring that the correct NICs are calculated and paid on any excess amounts. HMRC has indicated it will publish further guidance on the technical implementation, but the administrative burden is expected to increase.
Reviewing pension schemes: Many employers will need to reconsider their overall approach to pension provision.
It’s worth noting that ordinary (non-salary-sacrificed) employer contributions will remain exempt from NICs. Some employers may consider restructuring their reward packages to take advantage of this, though any such arrangements would need careful design to avoid any anti-avoidance provisions that HMRC may introduce.
Contractual considerations: Employers will need to review and potentially amend the contractual terms relating to salary sacrifice arrangements with their employees. Clear, compliant documentation will be essential, particularly given the complexity of the new rules.
Implications for employees
For employees, the changes could have several impacts:
Reduced take-home pay: Those contributing above £2,000 through salary sacrifice will see their take-home pay reduce as additional NICs become payable. For many middle and higher earners, this represents a meaningful change to their monthly income.
Pension contribution decisions: Faced with higher costs, some employees may choose to reduce their pension contributions to maintain their current take-home pay. Industry research conducted before the Budget suggested that 38% of workers would save less into pensions if salary sacrifice benefits were capped.
Alternative contribution methods: Employees can still make pension contributions outside of salary sacrifice arrangements and will continue to receive income tax relief. Personal contributions made directly to a pension scheme aren’t affected by the £2,000 cap, though they don’t offer the same NIC savings.
Looking ahead
The salary sacrifice cap represents a significant shift in UK pensions policy. Whilst the Government has positioned this as a measure to make the system fairer and raise much-needed revenue, concerns remain about the potential impact on pension adequacy and the additional burden on employers.
The three-year implementation timeline is a positive element, providing time for careful planning and adjustment. However, employers and employees alike should begin preparing now to ensure they’re ready for the changes when they arrive in April 2029.
The coming months will likely see further guidance from HMRC on the technical implementation, and it will be important to stay informed as details emerge.
In the meantime, understanding the fundamentals of the changes and their potential impact is the first step in effective preparation. To talk about how the upcoming changes will affect you and your business, get in touch with us today on 01905 777600 or email hello@ormerodruttr.co.uk.
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