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How does our salary sacrifice scheme work if your pay is variable?

  • Jun 8, 2022

  • 5 min read

If your income goes up and down a bit (hello, bonuses and commission), you might be wondering if EV salary sacrifice still makes sense.

Here’s the short answer: it usually does, but there are a couple of things to keep an eye on.

Let’s chat through the most common questions we get from people with variable pay, with clear answers to help you decide if it’s right for you.

What is salary sacrifice? 

Salary sacrifice is where you exchange part of your pre-tax income for a benefit, like a shiny new EV. 

With our scheme, all the big costs are rolled into one monthly payment. That includes your car, insurance, servicing, maintenance, tyres, and either a home charger or Electroverse public charging credit, plus access to cheaper home charging rates.

Because your salary sacrifice payments come out before tax, your taxable income goes down. That means you usually pay less Income Tax and National Insurance, although you’ll still pay a small amount of Benefit-in-Kind (BiK) tax on the car.

How will that look on my payslip?

Here’s how it works out for Ben. He earns £40k a year and leases a Volkswagen ID.3 for £363 a month. 

Thanks to Income Tax and National Insurance savings, the actual impact on his take-home pay is only £277.36. Plus, by choosing an EV through work instead of a petrol car, he saves an extra £144 a month in BiK.

Can I join if my income is variable?

Yes, as long as your salary doesn’t fall below the National Minimum Wage after the sacrifice. As of March 2026, that means:

  • Aged 21 and over: £12.71 per hour → ~£26,447 per year (37.5 hours/week)
  • Aged 18-20: £10.85 per hour → ~£22,566 per year
  • Aged 16-17: £8.00 per hour → ~£16,640 per year
  • Apprentices: £8.00 per hour → ~£16,640 per year

Your base salary (before bonuses or commission) needs to be comfortably above this to get EV salary sacrifice. You can’t rely on variable pay to top things up, so if your income dips in certain months, it needs to stay above that threshold.

How does it work if my pay varies month to month?

EV salary sacrifice works the same way, even if your pay changes from month to month. You agree to sacrifice a fixed amount of your salary, and that amount is taken from your pre-tax pay each month in exchange for the car.

If your earnings go up or down (for example, because of bonuses or commission) the salary sacrifice amount stays the same, but your take-home pay can fluctuate.

This happens because tax is calculated differently depending on your income:

  • Income Tax is worked out across the whole year, so it generally balances out over time.
  • National Insurance is calculated on each payslip, so it can increase or decrease depending on how much you earn that month.

So, the Income Tax and National Insurance you pay on things like commission and bonuses might fluctuate. One month you might pay at the basic rate, and the next at the higher rate. By the end of the tax year, HMRC usually corrects any Income Tax you’ve overpaid through a rebate or adjustment.

This means your take-home pay may vary a bit month to month, but the salary sacrifice itself remains consistent.

What happens if I get a bonus?

It doesn’t really matter for salary sacrifice. Your bonus might make your take-home pay look a bit different for that month, but the savings from salary sacrifice stay the same. 

Let’s see how that looks for Clare. She earns £45,000 a year and has an Omoda E5 through our salary sacrifice scheme, paying £394 per month.

Even in a month with a £500 bonus, Clare still pays £394 for her EV, so her costs stay predictable.

What about company car tax?

You’ll pay BiK tax on the EV, based on its list price and your tax band. 

The good news is EV BiK rates are still low, at 4% in 2026/27, and rising gradually to 9% by 2029/30.

Even at the higher end, that’s still much lower than petrol or diesel cars.

Is it still worth it?

For many people, yes. Especially if their base salary is stable and comfortably above the minimum wage. For Sarah Whurr, Head of Sustainability at GB Railfreight, the tax savings and all-in-one package have made a big difference to her bank balance. 

“Salary sacrifice has been a really good deal for me financially,” she says. “It comes out of my gross salary, so I pay less tax, and the payment I make also includes all my insurance, my maintenance. I don't have to think about anything.”

But of course, it’s always worth double-checking your personal financial situation before jumping in.

See if it works for you

To sum up: variable income doesn’t rule out salary sacrifice. It just means you’ll want to keep a closer eye on the numbers.

Take a look at the cars we’ve got available and use our handy calculator to see how the monthly cost fits with your income. 

If the maths works for you, it can still be one of the most cost-effective ways to drive an EV.