If you receive an annual bonus you might baulk at the amount of tax you pay on it. Often there’s emergency tax to pay and even when that’s been sorted out, you might still be down 40 or 45 percent. For higher rate taxpayers, a £10,000 bonus will be reduced to £5,800 by income tax and national insurance. If the bonus increases total income to between £100,000 and £125,140 for the tax year there will be loss of personal allowance which equates to 60% tax on that element.
Many people see their annual bonus as a chance to treat themselves, clear some debt, or build savings.
But increasingly, employees are choosing another option, which is paying some or all of their bonus into their pension through bonus sacrifice.
This approach can reduce the tax you pay on your bonus and potentially increase the amount invested for your future financial wellbeing.
But from 2029, National Insurance rules will change, so it’s important to understand how the current rules work and what is coming next.
What is Bonus Sacrifice?
Bonus sacrifice is when you agree with your employer that all or part of your bonus will be paid into your pension as an employer pension contribution, rather than being paid to you as salary.
Under current rules (2026): You save Income Tax and National Insurance (NI) on the portion of bonus sacrificed
Your employer may also save NI and can choose to add this saving to your pension
The full value of the sacrificed bonus is paid into your pension but it’s important to note that pension values can fall as well as rise, and you may get back less than you invest.
Current Tax Position (2026)
Under today’s rules employer pension contributions via bonus sacrifice are exempt from employee and employer National Insurance.
All pension contributions made through bonus sacrifice receive full Income Tax relief within annual allowance limits.
What’s Changing from April 2029?
From 6 April 2029 it is proposed that only the first £2,000 per year of pension contributions made through salary or bonus sacrifice will continue to be exempt from National Insurance.
Any amount sacrificed above £2,000 will be subject to employee and employer NICs. This could be adjusted before 2029 though, as amendments are debated in the House of Lords.
Tax treatment depends on individual circumstances and may change.
Why Consider Bonus Sacrifice in 2026?
Bonus sacrifice can help reduce Income Tax and NI on your bonus, boost your pension pot, and protect valuable allowances.
Pension contributions can reduce Adjusted Net Income and restore allowances such as Personal Allowance, Child Benefit, Tax-Free Childcare, and others.
Example
Maria earns £70,000 and receives a £10,000 bonus.
If paid as cash she would receive £5,800 after tax and NI.
If she sacrifices the bonus the full £10,000 goes into her pension and her employer may add their NI saving too.
Is Bonus Sacrifice Right for You?
Bonus sacrifice may help boost retirement savings and reduce your tax bill, but it may not be suitable if you need the cash or risk exceeding your Annual Allowance
This is not personal advice. Speak to a financial adviser if you’re unsure.