Salary sacrifice is one of the most powerful tax-saving tools available to UK employees. By giving up part of your gross salary in exchange for non-cash benefits, you reduce both your income tax and National Insurance contributions. For many workers, this means hundreds or thousands of pounds saved every year.
What Is Salary Sacrifice?
Salary sacrifice (also called salary exchange) is an arrangement where you agree with your employer to give up a portion of your gross salary in exchange for a non-cash benefit. Because your salary is lower, you pay less income tax. You also pay less National Insurance, because NI is calculated on your gross salary.
How It Works
- You and your employer agree on a salary sacrifice amount
- Your gross salary is reduced by that amount
- Your employer uses the sacrificed salary to provide a benefit instead
- Both you and your employer save on National Insurance
The benefit must replace salary — it cannot be a cash payment. If it were cash, it would just be regular pay with no tax advantage.
Key Principle
Salary sacrifice works because non-cash benefits are often exempt from or taxed at a lower rate than income. By converting salary into benefits, you reduce your overall tax bill.
How Salary Sacrifice Saves Tax
There are two layers of savings when you use salary sacrifice.
Income Tax Savings
When your salary is reduced, you pay less income tax. If you are a basic rate taxpayer (20%), every £1 you sacrifice saves you £0.20 in income tax. Higher rate taxpayers (40%) save £0.40 per £1.
National Insurance Savings
This is where the bigger saving comes in. Both you and your employer save NI:
| NI Rate | Saving Per £1 Sacrificed |
|---|---|
| Employee NI (8%) | £0.08 |
| Employer NI (13.8%) | £0.138 |
| Total NI saving | £0.218 |
Combined with income tax savings, a basic rate taxpayer saves roughly £0.28 per £1 sacrificed. Higher rate taxpayers save even more.
Total Tax Saving by Rate
| Taxpayer Rate | Income Tax Saving | NI Saving | Total Saving Per £1 |
|---|---|---|---|
| Basic (20%) | £0.20 | £0.08 | £0.28 |
| Higher (40%) | £0.40 | £0.02 | £0.42 |
| Additional (45%) | £0.45 | £0.02 | £0.47 |
Note: Higher and additional rate taxpayers pay only 2% NI above the upper earnings limit, so their NI saving is lower. However, the income tax saving more than compensates.
Common Salary Sacrifice Benefits
Not all benefits can be offered through salary sacrifice. HMRC requires the benefit to be a genuine non-cash arrangement. The most common schemes are:
1. Pension Contributions
The most popular salary sacrifice arrangement. Instead of paying into your pension from net pay, your employer pays a larger contribution from your pre-tax salary.
How it works: You sacrifice salary, your employer pays the equivalent into your pension. You save income tax and National Insurance on the sacrificed amount.
Example: You sacrifice £5,000 of salary into your pension. Your salary drops from £50,000 to £45,000. Your pension receives an extra £5,000. You save income tax and NI on the £5,000.
Why it is best: Pension salary sacrifice is the most tax-efficient way to save for retirement. The combination of income tax and NI savings makes it superior to personal pension contributions.
2. Cycle to Work Scheme
The Cycle to Work scheme lets you hire a bicycle and safety equipment through your employer via salary sacrifice. The scheme is tax-free and NI-free.
How it works: You agree a salary sacrifice with your employer. They buy a bike and safety equipment for you. You hire it for an agreed period (usually 12 months). At the end, you can often buy the bike at a small residual value.
Typical saving: If you sacrifice £3,000 for a bike, you save around £840 (basic rate) or £1,320 (higher rate) in tax and NI combined.
Key points:
- No limit on the value of the bike (though very expensive bikes may attract benefit in kind tax)
- Includes helmets, locks, lights, and other safety equipment
- Must be used mainly for commuting to work
- Available at most employers — ask your HR department
3. Electric Car Scheme (Salary Sacrifice EV)
One of the fastest-growing salary sacrifice areas. You sacrifice salary to lease an electric car through your employer. The benefit in kind (BIK) tax on electric cars is very low — just 2% for 2026/27.
How it works: Your employer leases an electric car for you. You sacrifice salary to cover the lease cost. You get a brand-new electric car, insurance, maintenance, and road tax included.
Key advantage: The BIK tax on electric cars is minimal compared to petrol or diesel cars. A petrol car with the same list price might have a BIK rate of 20-37%, making it much more expensive through salary sacrifice.
Example: A £40,000 electric car with 2% BIK costs around £160 per year in BIK tax. The same car as a petrol vehicle at 30% BIK would cost £2,400 per year.
4. Health Cash Plan
A health cash plan lets you claim back the cost of everyday healthcare, including dental treatment, optical care, physiotherapy, and chiropractic treatment.
How it works: You sacrifice a small amount of salary each month. In return, you get access to a health cash plan that reimburses you for eligible healthcare costs.
Typical saving: If you sacrifice £20 per month, you save £5.60 (basic rate) or £8.40 (higher rate) per month in tax and NI. The health cash plan may cover more than you pay in salary sacrifice.
5. Technology Schemes
Some employers offer laptops, tablets, or phones through salary sacrifice. The equipment must be primarily for business use, though limited personal use is allowed.
How it works: You sacrifice salary to access technology for work. The equipment is provided by your employer.
Key points:
- Limited to business-use equipment
- Must be a genuine non-cash benefit
- Some employers offer technology packages that include multiple devices
6. Childcare Vouchers
Childcare vouchers are largely closed to new entrants, having been replaced by Tax-Free Childcare. However, some employers still offer existing schemes.
How it works: If you were in a childcare voucher scheme before October 2018, you can continue to use it. You sacrifice salary to receive vouchers that can be used to pay for registered childcare.
Key point: New employees generally cannot join childcare voucher schemes. Tax-Free Childcare is the current alternative, but it is not available through salary sacrifice.
Pension Salary Sacrifice: Deep Dive
Pension salary sacrifice deserves special attention as it is the most common and most tax-efficient salary sacrifice arrangement.
How Pension Salary Sacrifice Works
- You agree with your employer to sacrifice a portion of your salary
- Your employer reduces your gross salary by the sacrifice amount
- Your employer pays the sacrificed amount into your pension as an employer contribution
- You save income tax and National Insurance on the sacrificed amount
Tax Savings Comparison
Personal pension contribution (relief at source):
- You contribute £100 from net pay
- Your pension provider claims £20 from HMRC
- Your pension receives £100
- You pay no NI on the £100 (already paid from net pay)
- Net cost: £80
Salary sacrifice pension:
- You sacrifice £100 of salary
- Your employer pays £100 into your pension
- You save income tax (20% for basic rate) on £100 = £20
- You save NI (8% for basic rate) on £100 = £8
- Total saving: £28
- Net cost: £72
The salary sacrifice method saves an extra £8 per £100 in NI for basic rate taxpayers. For higher rate taxpayers, the difference is even greater.
Employer NI Savings
Your employer also saves NI on the sacrificed amount (13.8% above the secondary threshold). Some employers pass part of this saving back to you as enhanced pension contributions, making the arrangement even more valuable.
Tax Savings by Salary Level
Here is how salary sacrifice savings work at different salary levels.
Basic Rate Taxpayer (£30,000 Salary)
Sacrifice £5,000 into pension:
| Item | Amount |
|---|---|
| Income tax saved (20%) | £1,000 |
| Employee NI saved (8%) | £400 |
| Employer NI saved (13.8%) | £690 |
| Total tax + NI saved | £2,090 |
Higher Rate Taxpayer (£80,000 Salary)
Sacrifice £10,000 into pension:
| Item | Amount |
|---|---|
| Income tax saved (40%) | £4,000 |
| Employee NI saved (2%) | £200 |
| Employer NI saved (13.8%) | £1,380 |
| Total tax + NI saved | £5,580 |
Additional Rate Taxpayer (£150,000 Salary)
Sacrifice £15,000 into pension:
| Item | Amount |
|---|---|
| Income tax saved (45%) | £6,750 |
| Employee NI saved (2%) | £300 |
| Employer NI saved (13.8%) | £2,070 |
| Total tax + NI saved | £9,120 |
Worked Example: £50,000 Salary
Let’s work through a complete example to show the savings from pension salary sacrifice.
Scenario
- Gross salary: £50,000
- Salary sacrifice amount: £5,000 into pension
- Taxpayer status: Basic rate (20%)
Before Salary Sacrifice
| Item | Annual Amount |
|---|---|
| Gross salary | £50,000 |
| Income tax (20% on £37,430) | £7,486 |
| Employee NI (8% on £37,430) | £2,994 |
| Total tax + NI | £10,480 |
After Salary Sacrifice
| Item | Annual Amount |
|---|---|
| Reduced salary | £45,000 |
| Income tax (20% on £32,430) | £6,486 |
| Employee NI (8% on £32,430) | £2,594 |
| Total tax + NI | £9,080 |
Savings Breakdown
| Saving Type | Annual Amount |
|---|---|
| Income tax saved | £1,000 |
| Employee NI saved | £400 |
| Employer NI saved (13.8% on £5,000) | £690 |
| Total tax + NI saved | £2,090 |
The £5,000 goes into your pension instead of being split between your bank account, HMRC, and your NI bill. You are £2,090 better off annually, and your pension is £5,000 richer.
Tips for Getting Started
Check If Your Employer Offers Salary Sacrifice
Not all employers offer salary sacrifice schemes. Contact your HR department or payroll team to find out what is available. Common schemes include pension, cycle to work, and electric car.
Prioritise Pension Sacrifice for Biggest Savings
Pension salary sacrifice typically offers the largest tax savings because contributions are often substantial and the combined income tax and NI savings are significant. Start here if your employer offers it.
Use Cycle to Work for Bikes
If you are buying a bicycle for commuting, the Cycle to Work scheme is a no-brainer. You save 28-42% on the cost of the bike and equipment, and you get to keep the bike at the end of the hire period.
Consider Electric Car Scheme
If you are in the market for a new car, an electric car through salary sacrifice can be significantly cheaper than buying or leasing privately. The low BIK rate (2% for 2026/27) makes electric cars particularly attractive.
Factor Into Total Compensation
When comparing job offers, factor in salary sacrifice benefits. A job with a lower salary but generous salary sacrifice schemes (pension matching, cycle to work, electric car) may be more valuable overall.
Check the Fine Print
Before committing to salary sacrifice, check:
- Minimum sacrifice period — Some schemes require a minimum commitment
- Impact on mortgage applications — Reduced salary may affect borrowing capacity
- Impact on statutory payments — SSP, maternity pay, and other statutory payments may be based on reduced salary
- Impact on benefits — If you receive means-tested benefits, salary sacrifice could affect your entitlement
Pros and Cons of Salary Sacrifice
Pros
- Tax efficiency — Save both income tax and National Insurance
- Enhanced benefits — Access to benefits that may be cheaper than arranging privately
- Employer savings — Your employer saves NI, which they may pass back to you
- Simplicity — Once set up, the arrangement runs automatically through payroll
Cons
- Reduced mortgage affordability — Lenders assess based on gross salary, which is lower
- Impact on statutory payments — SSP, maternity pay, and other payments may be lower
- Impact on benefits — Means-tested benefits may be affected
- Not reversible — Once committed, you cannot easily undo the arrangement
- Employer must offer it — You cannot set up salary sacrifice on your own
Who Benefits Most
Ideal Candidates
- Higher rate taxpayers (40%) — The tax saving is double compared to basic rate taxpayers
- People not claiming means-tested benefits — No risk of losing benefit entitlement
- Those not planning to apply for a mortgage soon — No impact on borrowing capacity
- People with stable employment — Less concern about statutory payment reductions
Less Suitable For
- Low earners — Below the NI threshold, there is no NI saving
- People receiving benefits — Reducing salary could affect entitlements
- Those planning to buy property — Reduced salary affects mortgage affordability
- People on variable income — Harder to predict the impact of salary reduction