Salary Sacrifice Car Scheme (UK)

MyCarTracks_support · May 12, 2026, 7:36am

A salary sacrifice car scheme lets you give up part of your contractual cash pay in return for a leased company car. Your employer has to change your contract, and the arrangement must not take your cash earnings below the National Minimum Wage. GOV.UK’s salary sacrifice guidance sets out those payroll and contract rules.

The tax saving is not automatic. You may pay less Income Tax and employee National Insurance on the sacrificed salary, but a car available for private use normally creates a company car Benefit-in-Kind (BiK) charge. For electric and low-emission cars, the BiK calculation can still make the scheme attractive because the taxable value is linked to CO2 emissions and the car’s list price.

This article is educational and is not tax, payroll, legal, employment, or financial advice. Salary sacrifice, company-car BiK, National Insurance, minimum wage, pension, and benefit effects can change by tax year and by contract wording. Check the official guidance, your scheme documents, and a qualified adviser before relying on a calculation.

Quick answer

A UK salary sacrifice car scheme can be worth checking if your employer offers a well-priced lease, especially for an electric or very low-emission car. You give up gross salary, the car is treated as a company car, and you usually pay BiK tax if private use is available.

For the 2026/27 tax year, HMRC’s company-car appropriate percentage table lists zero-emission cars at 4%, plug-in cars from 1g to 50g/km CO2 at 4% to 16% depending on electric range, and higher-emission cars up to 37%. Use the tax year, the car’s list price, CO2 figure, electric range where relevant, your tax band, and scheme fees before deciding.

How a salary sacrifice car scheme works

In a car salary sacrifice scheme, your employer or a fleet provider usually arranges the car lease. You agree to reduce your cash salary, and in return you receive the non-cash benefit of having the car.

The scheme may bundle costs that you would otherwise arrange yourself, such as:

lease payments
servicing and maintenance
tyres and breakdown cover
insurance, if the scheme includes it
road tax and fleet administration
a home charger or charging support, if the employer offers it

Those inclusions are scheme terms, not HMRC guarantees. Read the quote carefully. A low monthly sacrifice can look better than it is if insurance, early-return charges, excess mileage, damage charges, or charger costs sit outside the headline price.

The car is tied to the employment arrangement. If you leave the employer, reduce hours, go on unpaid leave, or move out of eligibility, the scheme terms decide whether you return the car, pay an early-exit charge, transfer the lease, or use another route.

Salary sacrifice car scheme pros and cons

Convenience is the obvious appeal. A good employer scheme can put the lease, servicing, tyres, breakdown cover, and fleet admin into one payroll arrangement. Some electric car schemes also include charging support or a home charger option.

The tax result can also be better than taking cash and leasing privately, but mostly when the car has a low BiK charge. That is why electric cars tend to dominate these schemes.

The trade-offs are real:

you can only use the scheme if your employer offers one
vehicle choice is limited by the employer and lease provider
the car usually goes back when the employment arrangement ends
early-exit, excess-mileage, and damage charges can be expensive
the salary reduction can affect pension, statutory pay, borrowing checks, or income-sensitive support
a petrol or diesel car may leave little tax advantage after BiK and OpRA rules

The useful question is narrower than “is salary sacrifice worth it?” It is whether this scheme, this car, and this tax year work for your pay.

Salary sacrifice tax and National Insurance

Salary sacrifice starts with a pay change. You give up part of your contractual cash salary before payroll calculates tax and employee National Insurance on the remaining cash pay.

The car then has its own tax treatment. If the car is available for private use, including ordinary commuting, it is normally a company car benefit. GOV.UK’s tax on company cars guidance explains that the employee pays tax on the value of the company car, and that the value depends on factors such as the car’s list price and fuel type.

Your employer is responsible for valuing and reporting the benefit. GOV.UK’s company car reporting guidance says non-exempt cars provided for private use must be reported to HMRC, and the employer may need to pay Class 1A National Insurance on the car benefit.

For the cash part of your pay, PAYE still applies. For the car benefit, the tax may be collected through your tax code, payroll benefits reporting, or P11D handling depending on how your employer runs benefits.

Benefit-in-Kind on a salary sacrifice car scheme

The monthly lease cost is not the same thing as the taxable BiK value. GOV.UK’s company car calculator guidance says the taxable value depends on fuel type, CO2 emissions, time unavailable during the tax year, and other company-car details.

For most petrol, diesel, and higher-emission cars provided through optional remuneration arrangements, the taxable amount is usually checked against the salary you gave up. GOV.UK’s optional remuneration arrangement guidance explains that cars above 75g/km CO2 are within those rules, and the relevant amount is the greater of the modified company-car benefit value and the amount foregone.

Cars with CO2 emissions of 75g/km or less are treated differently. The same official OpRA guidance says those low-emission cars continue to use the normal company-car benefit calculation rather than the comparison with salary foregone.

This is why electric salary sacrifice quotes often look stronger than petrol or diesel quotes. The sacrificed salary may be much higher than the BiK value, but a qualifying low-emission car can still use the normal BiK calculation.

Why electric cars often work better

Electric cars are not tax-free, but the company-car percentages are lower than for most petrol and diesel cars. For 2026/27, the lowest zero-emission company-car percentage is 4%. HMRC’s 2026/27 table also lists higher-emission cars up to 37%.

The same lease price can produce very different tax results depending on the car. A low-emission car can create a relatively small taxable benefit. A higher-emission car can lose much of the salary sacrifice advantage because the BiK charge is higher, and the OpRA comparison may pull the taxable value up toward the salary foregone.

Do not rely on an old percentage in a sales article. Check the tax year used in the quote. Also check:

list price, including taxable accessories
CO2 figure
electric range for plug-in hybrids
whether the car is provided through an optional remuneration arrangement
your marginal Income Tax rate
employee National Insurance effect
employer fees, insurance assumptions, and early-exit terms

If the car is a hybrid, GOV.UK’s electric car charging tax checker points users back to the company car and fuel benefit calculator and says to choose fuel type A.

Minimum wage and other pay effects

Your employer cannot use salary sacrifice if it takes your cash earnings below National Minimum Wage rates. GOV.UK’s current minimum wage rates change each April. From April 2026, the National Living Wage rate for workers aged 21 and over is £12.71 per hour.

This limit can rule out a car scheme for lower-paid employees or employees whose hours, overtime, unpaid leave, or other deductions make pay variable.

Salary sacrifice can also affect pay-linked calculations. GOV.UK warns that salary sacrifice may affect earnings-related payments, some benefits, contribution-based benefits, statutory payments, and pension calculations depending on the arrangement.

Before signing, ask how the scheme treats:

pensionable pay
employer pension contributions
overtime, bonus, commission, and pay rises
statutory maternity, paternity, adoption, sick, or redundancy pay
student loan and postgraduate loan deductions
Universal Credit, tax-free childcare, or other income-sensitive support
what happens if your pay drops below the scheme’s eligibility level

The tax quote is only one part of the decision. A cheaper car can still be a poor deal if it reduces a payment or benefit you expected to keep.

Salary sacrifice car scheme vs car allowance

A salary sacrifice car scheme is a non-cash benefit. A car allowance is usually cash paid through payroll.

Question	Salary sacrifice car scheme	Car allowance
Payment setup	Contractual cash-pay reduction for a car benefit	Extra cash, usually paid with salary
Vehicle	Usually a leased company car through the employer’s scheme	Usually your own car or lease
Tax issue	BiK on the company car, plus reduced cash pay	Cash allowance normally taxed as earnings
National Insurance	Employee NIC may fall on cash pay; employer Class 1A NIC can apply to the car benefit	Employee NIC usually applies to the allowance
Vehicle choice	Limited to scheme provider and employer policy	Usually wider, subject to employer policy
Leaving employment	Scheme terms decide return or exit costs	Your own car or lease normally remains with you
Business mileage	Company-car fuel/electricity rules, not private-car MAPs	MAPs/MAR may apply if you use your own vehicle

If you want maximum control over the vehicle, a car allowance may suit you better. If you want a new electric car and the employer scheme absorbs admin, servicing, and maintenance at a competitive price, salary sacrifice may be worth modelling.

For the cash route, use Car Allowance for Employees (UK). For the wider UK mileage context, use HMRC Mileage Guide (UK).

Business mileage, fuel, and charging

A salary sacrifice car is usually a company car for mileage purposes. That means the private-vehicle MAP and MAR rules are not the right route for the car itself.

If you use your own car for business journeys, Mileage Allowance Payments and Mileage Allowance Relief may apply. If you use a company car, the question is usually business fuel or electricity, private fuel benefit, advisory fuel rates, or actual electricity cost evidence, depending on the arrangement.

Keep these separate:

salary sacrificed for the car
BiK value for the company car
employer reimbursement for business fuel or electricity
employee repayment for private fuel
any business miles driven in a separate private vehicle

Mixing those records can create a messy payroll and tax review. It can also lead to the wrong claim, such as trying to claim private-car 45p/25p MAP rates for a company car.

Records to keep

The employer needs records for the company car benefit, payroll reporting, minimum wage checks, and scheme administration. GOV.UK’s company-car reporting guidance says employers should keep a record of the car’s list price because it is needed to work out the benefit value.

Employees should also keep their own copy of the scheme facts. Keep:

the salary sacrifice agreement and contract variation
the quote and tax-year assumptions used
car make, model, list price, fuel type, CO2 figure, and electric range where relevant
start and end dates for the car
unavailable periods
employee contributions or private-use payments
charging, fuel, reimbursement, and repayment records
business trip logs if you claim or repay business fuel or electricity
early-exit and excess-mileage terms

If you change car, stop receiving private fuel, return the car, or change working pattern, check that payroll and HMRC records are updated.

How MyCarTracks helps with salary sacrifice mileage tracking

The salary sacrifice agreement sits in payroll. The trip evidence sits in your mileage records.

MyCarTracks records business trips for company-car fuel or electricity review, separates business and personal journeys, keeps vehicle records, and exports mileage reports for payroll checks. That helps when a company car is used for business trips and the employer needs clean evidence for reimbursement, repayments, or internal policy controls.

Use MyCarTracks automatic mileage tracking if you want business trips recorded while driving happens.

Common mistakes with salary sacrifice car schemes

treating the monthly sacrifice as the taxable BiK value
using an old EV BiK percentage without checking the tax year
assuming petrol or diesel salary sacrifice gives the same tax result as an EV
ignoring National Minimum Wage limits
missing early-exit charges when leaving employment
comparing a salary sacrifice quote with a car allowance before tax and National Insurance
claiming private-car MAP rates for a salary sacrifice company car
forgetting that private fuel can create a separate fuel benefit
skipping pension, statutory pay, loan, or childcare-support checks

Salary sacrifice car scheme FAQ

Is a salary sacrifice car taken before or after tax?

The salary reduction is made before PAYE is calculated on your remaining cash salary. The car is then taxed as a company-car benefit if private use is available.

Do I pay Benefit-in-Kind on a salary sacrifice car?

Usually yes, if the car is available for private use. The taxable value depends on the company-car rules, the car, and whether optional remuneration arrangement rules affect the calculation.

Is an electric car salary sacrifice scheme tax-free?

No. Electric company cars can have a lower BiK percentage, but they still need a taxable benefit calculation.

What happens if I leave my job?

The scheme agreement decides what happens. You may have to return the car, pay an early-exit charge, transfer the lease if the provider allows it, or follow another employer-specific process.

Can salary sacrifice reduce my pay below minimum wage?

No. GOV.UK says a salary sacrifice arrangement must not reduce cash earnings below National Minimum Wage rates.

Can I claim HMRC mileage rates for a salary sacrifice car?

Not under the private-vehicle MAP rules for that car. A salary sacrifice car is usually a company car, so business fuel or electricity reimbursement rules need to be handled separately.

Is salary sacrifice better than a car allowance?

It depends on the car, tax year, BiK percentage, your tax band, scheme price, employer policy, insurance, maintenance, pension effects, and exit terms. Run the net-pay comparison before signing.