CATEGORY: Tax
DESCRIPTION: Salary sacrifice can cut your tax and National Insurance contributions — sometimes significantly. Here's how it works, what's available, and whether your employer offers it.
SECTION: What Is Salary Sacrifice?
Salary sacrifice (also called salary exchange) is an arrangement between you and your employer where you agree to give up part of your gross salary in exchange for a non-cash benefit. Because your contractual salary is reduced, you pay less income tax and National Insurance Contributions (NICs) on that portion — and your employer also pays less in employer NICs, sometimes sharing those savings with you.
Salary sacrifice is entirely legal and is actively encouraged by HMRC for certain benefits. It's not a loophole — it's a government-approved way to increase take-home pay and benefits simultaneously.
SECTION: The Most Common Salary Sacrifice Benefits
Pension contributions: The most widely used form of salary sacrifice. Instead of you contributing to your pension from net pay, your employer deducts your pension contribution before tax and NICs. You save both income tax and NI on the full contribution. This can be significantly more efficient than ordinary pension contributions for higher earners.
Cycle to Work scheme: You sacrifice salary to cover the cost of a bike and cycling equipment, typically up to £1,000 (or more with some schemes). The savings on tax and NI mean a £1,000 bike might effectively cost you £600 as a basic rate taxpayer.
Electric vehicle leasing: Some employers offer EV salary sacrifice schemes, where you lease an electric car in exchange for reduced salary. The benefit-in-kind (BiK) tax rate on EVs is very low (currently 3%), making this one of the most tax-efficient perks available to employees.
Childcare vouchers: This scheme closed to new entrants in October 2018, but those already enrolled may still benefit. Tax-Free Childcare has replaced it for new claimants.
Technology and home-working equipment: Some employers offer salary sacrifice for laptops, phones, and office equipment.
Holiday purchase: Some employers allow you to buy extra annual leave through salary sacrifice, increasing your holiday entitlement at a tax-efficient cost.
SECTION: How the Tax Saving Is Calculated
The saving depends on your income tax rate and NI rate. As a basic rate taxpayer (20% income tax + 12% NI), every £100 of salary sacrifice reduces your gross pay by £100 but increases your net pay compared to taking that £100 as cash and using it for the same purpose. For pension sacrifice specifically, you save both 20% tax and 12% NI — a combined saving of 32% as a basic rate taxpayer, or 42% for a higher rate taxpayer (40% tax + 2% NI).
SECTION: Things to Watch Out For
Impact on benefits: Because your contractual salary is lower, salary sacrifice can affect some state entitlements and credit calculations. These include statutory maternity/paternity pay, mortgage affordability assessments, and means-tested benefits. Think carefully if you're planning a remortgage or expecting to claim benefits.
Minimum wage: Salary sacrifice cannot reduce your pay below the National Minimum Wage or National Living Wage. This limits how much some lower earners can sacrifice.
Flexible benefits vs salary sacrifice: Not all employer benefits are offered through formal salary sacrifice. Confirm with your HR or payroll department exactly how each scheme is structured to ensure you're getting the tax advantage.
SECTION: How to Find Out If Your Employer Offers It
Salary sacrifice arrangements are set up by employers, not employees. Ask your HR department or check your employee benefits portal. Many large employers have comprehensive flex-benefit platforms where you can model the exact savings before opting in.
SECTION: SimpleMoney Verdict
Salary sacrifice is one of the most underused tax-saving tools available to employees. If your employer offers a pension salary sacrifice scheme and you're not using it, you're almost certainly paying more tax than you need to. Review your benefits package and ask your HR team which sacrificeable benefits are available.