Company cars. They’re a staple perk in the UK. Eight hundred forty thousand drivers had one last year, HMRC says. It used to be about the badge on the grille. Now? It’s about the tax.
The system favors low CO2. Heavily. So much so that electric vehicles have turned company fleets into a testing ground for early adopters. HMRC brought back those ultra-low tax bands in 2020. Cars got better, too, and cheaper. Suddenly, switching to an EV wasn’t just green, it was logical.
An extra 120,00 people joined the club since the 20/21 tax year. 41% are driving electric now.
Here’s the math on why everyone is making that move.
How much is that tax break worth?
If your job requires miles, a company car feels like winning. Brand new vehicle. Insurance covered. Maintenance sorted. You take it home, your family uses it, and it costs you… nothing, right?
Of course, nothing is free.
HMRC calls it a “Benefit in Kind” or BiK. Fancy words for “your boss gave you extra value, so we’re going to tax it like income.” Every perk has a price.
The trick is minimizing that price. And there is one way to do that: zero tailpipe emissions. A car with no exhaust produces zero CO2.
Here’s how the bands work. Your car gets a percentage rate based on its emissions, applied to the list price. That number is your “taxable value.” Rates range from a measly 4% up to a brutal 37%.
An EV sits in that bottom 4% band. Look at the Toyota Yaris hybrid, supposedly one of the cleanest gas hybrids, and its rate jumps to 25%. Do the math yourself.
Then, you apply your income tax rate to that taxable value. Twenty percent for basic taxpayers? Forty? Forty-five? In Scotland, the brackets go higher still, up to 46%. If you’re in the 20% band, you pay 20% of that BiK value every year. Usually, the company deducts it straight from your wages. You rarely see the hit, which is probably for the best.
It boils down to this. Picking an EV makes your tax roughly five times cheaper. And the government seems keen to keep it that way until 2030 at least. The savings are sizeable, immediate, and unlikely to disappear overnight.
