Salary sacrifice calculator launch
Meet the Perx Calculators: See What Salary Sacrifice Works Out To, in About 20 Seconds
The question we hear most often, from employers and employees alike, is simple: what does this actually work out to? So we built a free set of calculators that answers it on the spot. They are live now at calculators.covase.co.uk. The tools cover electric cars, home charging, solar and home battery. No sign-up, no upload and no call before you see a figure.
The honest answer used to take a meeting
Salary sacrifice is genuinely one of the strongest staff benefits available today. It lets your team access an electric car, or home energy kit, from gross pay rather than an upfront purchase, and that changes the monthly picture compared with conventional finance options.
The catch was never the benefit. It was the explaining. Ask “what would it work out to for me” and the answer depends on salary, tax band, vehicle or kit, term and mileage. By the time someone has worked that out by hand, momentum is often gone. The Perx calculators close that gap.
For employees: pick a car, see your number
If you are considering an electric car, it is worth seeing what one works out to through salary sacrifice before you compare PCP or personal finance. The employee calculator lets you pick a car, set your tax band, term and mileage, and see the indicative net monthly cost with the 2026/27 Benefit-in-Kind position built in.
For context, BiK for fully electric company cars is 4% for 2026/27 and moves up incrementally through the following years, which is why the position is most favourable now. You do not need to understand the tax mechanics to use the tool. Pick a car, enter a few details, and read the number.
For employers: see the business picture at your headcount
If you are considering offering Perx, the employer calculator shows the indicative employer National Insurance effect at your scale and what the scheme looks like as a single payroll line. Employer National Insurance is charged on reduced pay where salary is surrendered, and the tool models that outcome using the current employer Class 1 secondary NIC position. The result is a clear payroll-line representation you can take to finance or leadership. One scheme. One payroll line. The whole team covered.
The whole 4-in-1, not just the car
Perx is more than vehicles. The calculators cover the full bundle: an electric car, a home charge point, solar panels and a home battery, all available through gross pay without a large upfront deposit. For many people the home-energy option is the surprising benefit because it brings solar and storage within reach via payroll rather than a single payment.
No sign-up, just the numbers
There is nothing to register and nothing to download. Land on the tool, set your details, and the indicative figure populates in about 20 seconds. Every result is indicative and depends on individual circumstances: salary, tax position, vehicle, term and mileage all change the outcome. The tool is a fast, credible starting point, not personal financial advice.
When you want to proceed, the calculator will carry you to apply.covase.co.uk or give the option to book a short call.
Have a go!
Whether you are an HR lead building a benefits package or someone weighing up an EV for the first time, the answer is about 20 seconds away.
Try the Perx calculators at calculators.covase.co.uk, and when you are ready, take it forward at apply.covase.co.uk.
Figures are indicative and depend on individual circumstances. This article is general information, not tax or financial advice.