£45,000 with £8,000 Pension Salary Sacrifice 2025-26
England & Wales · Pension salary sacrifice · 2025-26 tax year
Before vs after £8,000 salary sacrifice — 2025-26
| Item | Before sacrifice | After sacrifice | Saving |
|---|---|---|---|
| Gross / effective salary | £45,000 | £37,000 | −£8,000 |
| Income Tax | £6,486 | £4,886 | £1,600 |
| National Insurance | £2,594 | £1,954 | £640 |
| Net take-home / yr | £35,920 | £30,160 | £2,240 |
| Monthly take-home | £2,993 | £2,513 | £187 |
Pension salary sacrifice: what goes into your pot
| Your pension contribution (sacrifice) | £8,000/year | £667/month |
| Employer min contribution (3%) | £1,350/year | £113/month |
| Estimated total pension/year | £9,350/year | £779/month |
| Real cost to take-home | £5,760/year | £480/month |
Pension salary sacrifice is the most tax-efficient way to save for retirement. Your employer may also pass on their NI saving (£1,200/year) as an additional pension contribution — check your scheme rules.
£45,000 with £8,000 pension salary sacrifice — explained
On a £45,000 salary, sacrificing £8,000 for pension reduces your taxable earnings to £37,000. Your Income Tax drops from £6,486 to £4,886 (saving £1,600), and your National Insurance drops from £2,594 to £1,954 (saving £640).
The total annual saving is £2,240 (£187/month). The real cost to your take-home pay is only £5,760/year — because the tax and NI saving offsets a significant portion of the sacrifice.
Your employer also saves 15% employer NI on the sacrificed amount — £1,200/year. Many employers pass this saving on as an additional pension contribution or towards the cost of an EV lease.
Frequently asked questions
How much do I save with £8,000 pension salary sacrifice on £45,000?
On a £45,000 salary, sacrificing £8,000 for pension saves you £2,240 per year (£187/month) in combined Income Tax and National Insurance. Income Tax saving: £1,600. NI saving: £640.
Is salary sacrifice worth it on £45,000?
Yes — salary sacrifice is almost always beneficial if your employer offers it. On £45,000 with a £8,000 sacrifice, you save £2,240 in tax annually. Your take-home drops by only £5,760/year (not £8,000) because the tax saving offsets part of the sacrifice.
Does salary sacrifice affect my National Insurance on £45,000?
Yes — salary sacrifice reduces your National Insurance contributions because NI is calculated on your lower contractual salary. On £45,000 with £8,000 sacrifice, you save £640/year in NI. Your employer also saves 15% NI on the sacrificed amount (£1,200/year), which some employers pass back to employees.
What is my take-home after £8,000 pension sacrifice on £45,000?
After a £8,000 pension salary sacrifice on £45,000, your annual take-home is £30,160 (£2,513/month). Without the sacrifice, your take-home would be £35,920 (£2,993/month). The difference (£5,760/year) is the net cost to your take-home.
Does salary sacrifice affect my pension on £45,000?
For pension salary sacrifice: your pension pot grows by the full £8,000 sacrifice plus employer contributions. For EV or cycle sacrifice, your auto-enrolment pension is unaffected as it is based on qualifying earnings, not the sacrificed benefit. However, some mortgage lenders use post-sacrifice salary — confirm with your employer how they report income.
How does salary sacrifice affect State Pension on £45,000?
Salary sacrifice reduces your NI-able earnings. On £45,000 the effective salary after sacrifice is £37,000, which is well above the Lower Earnings Limit (£6,396 in 2025-26) — so your State Pension entitlement and NI record are unaffected.