Salary Sacrifice Example: How to Read the Headline Rate and What It Really Costs

How to Read a Salary Sacrifice Example

A salary sacrifice example helps you see past the headline rate and understand what a pension contribution actually costs you in take-home pay. In a salary sacrifice arrangement, you agree to reduce your contractual salary, and your employer pays that amount into your pension instead. The key benefit is that you save both Income Tax and National Insurance on the sacrificed amount, and your employer saves 15% employer NI, which they may or may not pass on to your pension.

What a Typical Salary Sacrifice Example Looks Like

Let's take a basic-rate taxpayer earning £35,000 who wants to sacrifice £2,000 a year into a pension. According to, the take-home pay reduction is about £1,440. That's because you save £400 in Income Tax (20% of £2,000) and £160 in employee National Insurance (8% of £2,000). Your pension receives the full £2,000. If your employer passes on its NI saving of £300 (15% of £2,000), your pension could be £2,300. So the net cost to you is £1,440 for a pension contribution of up to £2,300 — a boost of 60%.

For a higher-rate taxpayer on £75,000 sacrificing £5,000, the saving is larger. shows that Income Tax saved is £2,000 (40%) and employee NI saved is £100 (2%), so take-home pay falls by about £2,900. The pension gets £5,000, and with employer NI pass-through could be £5,750.

The National Minimum Wage Floor

A critical constraint is the National Minimum Wage. HMRC guidance, cited by, says salary sacrifice must not reduce your cash earnings below the National Minimum Wage rates. From April 2026, the National Living Wage for workers aged 21 and over is £12.71 per hour. At 37.5 hours a week for 52 weeks, that's £24,785 a year. So if you earn £30,000, you have about £5,215 of headroom before you hit the floor. Employers will cap your sacrifice to keep you above this level.

For younger workers, the rates are lower: £10.85 for ages 18–20, and £8.00 for under-18s and apprentices. The apprentice rate applies to apprentices under 19 or in their first year. Always check the current GOV.UK rates for your specific situation.

What Else to Watch Out For

Salary sacrifice isn't just about the numbers on your payslip. It can affect other things:

• Statutory pay: Maternity, paternity, adoption, and sick pay are based on your post-sacrifice earnings. If your average weekly earnings drop below £123 (the Lower Earnings Limit for 2026/27), you lose entitlement entirely, as noted by.
• Mortgage applications: Lenders usually look at your contractual salary, not the reduced figure. Your employer may need to provide a reference salary letter.
• Life assurance and income protection: If these are set as a multiple of salary, a lower salary means lower cover.
• Pension annual allowance: Employer contributions count towards your annual allowance, so be aware if you're close to the limit.
• State benefits: Earnings below the Lower Earnings Limit can affect your State Pension qualifying years and entitlement to earnings-related benefits.

Comparing Salary Sacrifice with Other Pension Contribution Methods

A salary sacrifice example from compares three methods for a £2,000 contribution on a £35,000 salary:

• Relief at source: You pay £1,600 take-home, provider adds £400 tax relief, pension gets £2,000.
• Net pay arrangement: You pay £1,600 take-home, no provider top-up, pension gets £2,000.
• Salary sacrifice: You pay £1,440 take-home, pension gets £2,000 (plus possible employer NI pass-through).

Salary sacrifice is the cheapest in take-home cost because you also save employee NI. But it's only available if your employer offers it, and you must be comfortable with the trade-offs.

Who Should Think Twice

Salary sacrifice isn't for everyone. The guide highlights these groups who should be cautious:

• Workers near the National Minimum Wage floor, because the sacrifice could push them below it.
• Employees claiming statutory payments like SMP or SSP, which are based on post-sacrifice earnings.
• Those applying for a mortgage, who may need a letter confirming their pre-sacrifice salary.
• Employees below the Lower Earnings Limit (£6,396/year in 2026/27), who could lose state benefit entitlements.
• Anyone earning under the personal allowance, who gets no income tax saving from a sacrifice and would be better off with a relief-at-source pension.
• People whose pay rises, bonuses, or death-in-service cover are calculated on the reduced salary.

How to Use This Information

When you see a salary sacrifice example, look beyond the headline pension contribution. Calculate your actual take-home pay reduction using your marginal tax and NI rates. Check whether your employer passes on any NI savings. And always consider how the reduced salary might affect your statutory entitlements and other financial commitments.

For more guidance on pay rates and calculations, visit our pay guides and pay data pages. You can also explore topics related to salary sacrifice and the National Minimum Wage.

Remember: the figures in this article are based on 2026/27 rates and are for illustration. Your actual situation depends on your age, hours, contract, and employer's policies. Always consult your contract and current statutory rates before making a decision.