May 19, 2026
Pension salary sacrifice changes: what employers need to know for 2029
At a glance:
- A proposed £2,000 annual National Insurance-free cap on pension salary sacrifice contributions could apply from April 2029
- Employer and employee National Insurance (NI) may apply above the threshold
- Higher earners and their employers using salary sacrifice arrangements are likely to be most affected
- Organisations should start reviewing pension, payroll and reward strategies ahead of possible implementation
Pension salary sacrifice has long been one of the most tax-efficient ways for employers and employees to save on National Insurance (NI) while supporting workplace pension contributions.
However, following the Autumn Budget 2025, the Government has proposed that from April 2029 only the first £2,000 of annual employee pension contributions made through salary sacrifice will remain exempt from NI.
For employers already managing higher NI costs, the changes could have a significant impact on payroll strategy, pension engagement and wider employee benefits planning.
What is pension salary sacrifice?
Pension salary sacrifice is an arrangement where employees exchange part of their salary in return for increased employer pension contributions.
As contributions are made before tax and NI deductions, both employers and employees can usually make savings.
For many organisations, salary sacrifice has become an established part of workplace pension and reward strategies.
What is changing from 2029?
The Autumn Budget 2025 proposed that from April 2029:
| Key change | Details |
| NI-free salary sacrifice limit | First £2,000 of annual employee pension contributions only |
| Proposed effective date | April 2029 |
| Contributions above the cap | Employer and employee NI will apply |
In practice, employees contributing more than approximately £167 per month through salary sacrifice could begin paying NI on contributions above the threshold.
For employers, the changes could reduce the NI efficiencies that have historically made salary sacrifice arrangements attractive.
Why is the Government changing the rules?
The Government has positioned the reform as part of a broader effort to increase Treasury revenues, reduce the overall cost of pension tax relief and limit perceived tax advantages for higher earners.
At the same time, employers are already balancing rising payroll costs, recruitment pressures and growing demand for financial wellbeing support.
While the proposed changes do not remove the tax advantages altogether, the reforms could reshape how some organisations approach pension and reward planning over the coming years.
What could the impact be for employers?
For many businesses, salary sacrifice is embedded into payroll and employee benefits strategies.
The proposed changes could lead to:
- Higher employer NI costs
- Increased payroll complexity
- Pressure on wider benefits budgets
- More employee questions around pension value
- Reduced savings for higher earners
For example, an employee sacrificing £10,000 annually into their pension could see National Insurance apply to £8,000 of contributions above the new threshold.
Many employers currently use NI savings from salary sacrifice to enhance pension contributions or support wider wellbeing initiatives. The new cap may require some organisations to reassess those models ahead of 2029.
Why communication matters
Pensions can often feel complicated for employees, particularly during periods of legislative change.
Clear, straightforward communication can help employees understand:
- What is changing
- How it could affect take-home pay
- What it means for long-term retirement planning
- Whether they need to take any action
At Secondsight, we often see stronger engagement when pension communication is simple, practical and focused on real-life outcomes rather than technical jargon.
What HR and reward teams should do now
Although the proposed reforms do not take effect until 2029, now is a good time for employers to begin reviewing existing arrangements.
Assess:
- Employer NI savings
- Contribution levels
- Payroll processes
- Employee participation
- Existing communication plans
Pensions do not exist in isolation. Employers should review how workplace pension arrangements align with:
- Financial wellbeing strategies
- Reward positioning
- Employee engagement goals
- Recruitment and retention priorities
Employees are likely to have questions well before implementation. Early and clear communication can help reduce confusion and maintain confidence in workplace pensions.
Before vs after: how the rules may change
| Current rules | Rules from April 2029 |
| Most salary sacrifice pension contributions are exempt from NI | Only the first £2,000 of annual employee contributions remain NI-free |
| Employers can achieve significant NI savings | Employer NI may apply above the threshold |
| Salary sacrifice remains highly tax efficient for higher earners | Tax efficiency could reduce for larger pension contributions |
Frequently asked questions
Not fully; the Autumn Budget 2025 proposed that from April 2029 only the first £2,000 of annual employee pension contributions made through salary sacrifice will remain exempt from National Insurance. The change is still subject to confirmation in legislation and currently HMRC are in consultation with payroll software companies, workplace pension scheme providers, and employers to consider how this could work. Clearly there is also a further three years before this proposed change and a lot can happen during that time.
Potentially, contributions above the new annual threshold may become subject to employee National Insurance.
Under the proposals, employer-funded pension contributions that are not part of an employee’s salary sacrifice arrangement will continue to be exempt from employer NICS.
For many employers and employees, salary sacrifice is still likely to offer tax efficiencies after 2029, although the savings may reduce for larger pension contributions.
Yes, many organisations are already reviewing pension contribution structures, communication strategies, and wider reward arrangements ahead of implementation.
Please note:
This article is for general information only and does not constitute advice.
All information is correct at the time of writing and is subject to change in the future. Please do not act based on anything you might read in this article. All contents are based on our understanding of HMRC legislation, which is subject to change.
The Financial Conduct Authority does not regulate estate planning, cashflow planning, tax planning, trusts, Lasting Powers of Attorney, or will writing.
A pension is a long-term investment not normally accessible until 55 (57 from April 2028). The fund value may fluctuate and can go down, which would have an impact on the level of pension benefits available.
The tax treatment of pensions in general and tax implications of pension withdrawals will be based on individual circumstances, tax legislation and regulation, which are subject to change in the future.
The value of your investments (and any income from them) can go down as well as up and you may not get back the full amount you invested. Past performance is not a reliable indicator of future performance.
Investments should be considered over the longer term and should fit in with your overall attitude to risk and financial circumstances.
