Pensions

Salary Sacrifice: Is It Worth It?

Updated 28 July 2026  ·  2026/27 HMRC rates

Salary sacrifice is an arrangement where you give up part of your gross salary in exchange for a non-cash benefit — usually a pension contribution — saving both Income Tax and National Insurance on the sacrificed amount. It is one of the most tax-efficient strategies available to UK employees.

How It Works

Rather than earning £50,000 and paying pension contributions from your net pay, you agree with your employer to reduce your contractual salary to £47,500. Your employer pays £2,500 directly into your pension. Because that £2,500 was never part of your gross salary, neither you nor your employer pays tax or NI on it.

Without sacrifice (relief at source)
Tax + NI relief
Only Income Tax reclaimed. NI still charged.
With salary sacrifice
Tax + NI saved
Both Income Tax and NI avoided entirely.

Real Example: £50,000 Salary, 5% Pension

ItemRelief at SourceSalary Sacrifice
Gross (contractual)£50,000£47,500
Pension contribution£2,500£2,500
Income Tax saved£500£500
NI saved (employee)—~£175
Total saving£500~£675

What Else Can Be Sacrificed?

Watch Out For

Salary sacrifice reduces your contractual salary. Mortgage lenders use this figure when assessing affordability — a large sacrifice may reduce your borrowing capacity. Also: your post-sacrifice salary must not fall below the National Minimum Wage for your age.

Calculate your take-home pay

Use PayKeep's free calculator for your exact figures — pension, student loan, tax code and all.

→ Model Salary Sacrifice