| Item | Before Sacrifice | After Sacrifice | Change |
|---|---|---|---|
| Gross Salary (taxable) | £0 | £0 | £0 |
| Income Tax (annual) | £0 | £0 | £0 |
| Employee NI (annual) | £0 | £0 | £0 |
| Take-Home Pay (annual) | £0 | £0 | £0 |
With salary sacrifice, you agree with your employer to give up part of your gross salary in exchange for a non-cash benefit (such as a pension contribution or a bicycle). Because the sacrifice reduces your gross pay, you pay less income tax and less National Insurance on the lower amount. HMRC treats the benefit as coming from your employer, so basic-rate, higher-rate and additional-rate taxpayers all save the same way.
Pension salary sacrifice: Your employer pays the contribution directly to your pension. It does not appear on your payslip as income. Basic-rate taxpayers save 28p per £1 sacrificed (20% tax + 8% NI). Higher-rate taxpayers save 42p per £1 sacrificed (40% tax + 2% NI).
Cycle to Work: Your employer buys the bike and accessories, then hires them to you over 12 months. You repay via salary sacrifice, saving tax and NI on the hire cost. At the end, you typically buy the bike at a small market value.
Employer NI saving: Your employer also saves 13.8% employer NI on the sacrificed amount. Some employers (particularly in the public sector) pass this saving back into your pension, boosting your pot further.