Salary Sacrifice on a £45,000 Salary 2026/27
On a £45,000 UK gross salary, salary sacrifice reduces taxable pay pound for pound - so the headline sacrifice value escapes Income Tax + employee NI at your marginal rate. The net cost to your take-home is materially less than the headline sacrifice. Below shows 5%, 10% and 15% of salary sacrificed (pension or other benefit).
5% sacrifice
£2,250
Costs £1,620 take-home, saves £630 (28%)
10% sacrifice
£4,500
Costs £3,240 take-home, saves £1,260 (28%)
15% sacrifice
£6,750
Costs £4,860 take-home, saves £1,890 (28%)
Take-home comparison at £45,000
| Scenario | Sacrificed | Take-home | Net cost vs zero sacrifice |
|---|---|---|---|
| No sacrifice | £0 | £35,920 | - |
| 5% sacrifice | £2,250 | £34,300 | £1,620 |
| 10% sacrifice | £4,500 | £32,680 | £3,240 |
| 15% sacrifice | £6,750 | £31,060 | £4,860 |
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Frequently asked questions
- What can I sacrifice my salary for?
- Common UK schemes: pension contributions, cycle-to-work (bikes + accessories), EV car lease, childcare vouchers (legacy - closed to new joiners), holiday buy, technology schemes, gym memberships. All reduce your gross salary pre-tax.
- How much tax do I save?
- The sacrifice is deducted before Income Tax and National Insurance, so you save both. Basic-rate: 28% (20% IT + 8% NI). Higher-rate above UEL: 42% (40% IT + 2% NI). Additional rate: 47% (45% IT + 2% NI).
- Are there any downsides?
- Lower gross salary means: lower mortgage borrowing capacity, lower pension auto-enrolment base (if not on salary sacrifice), reduced maternity/redundancy pay, and lower state pension credits if you drop below the Lower Earnings Limit (£6,396).
- Is salary sacrifice always allowed?
- No - your employer must offer the scheme and HMRC must approve the benefit type. Your reduced salary cannot fall below the National Minimum Wage.
- Does this include employer NI savings?
- We model only your personal tax and NI saved. Employers also save 13.8% NI on the sacrificed amount - some generous schemes pass this back into your pension.