Benefit in Kind (BIK) is the tax you pay for having a company car available for private use. The sum is simple: take the car's P11D value, multiply it by the appropriate percentage HMRC assigns to its CO2 band, then multiply that taxable value by your income tax rate (20%, 40% or 45% in England, Wales and Northern Ireland; Scottish rates differ). The company pays too: employers owe Class 1A National Insurance at 15% on the same taxable value.
The P11D value is the manufacturer's list price including VAT, delivery and factory-fitted options, excluding the first registration fee and road tax. Discounts never reduce it, and the rules are identical whether the business buys the car or leases it through Business Contract Hire. HMRC rounds exact CO2 figures down to the nearest 5g/km, and non-RDE2 diesels add a 4% supplement, capped at the maximum rate.
These are the appropriate percentages for cars registered from 6 April 2020, taken directly from HMRC's published tables and the announced future-year uplifts. Two structural points matter for planning: sub-75g/km bands are capped at 21% through 2027/28 while 75g/km and above stay frozen, and from April 2028 the whole 1 to 50g/km group collapses onto a single flat rate.
| CO2 (g/km) | Electric range | 2025/26 | 2026/27 | 2027/28 | 2028/29 | 2029/30 |
|---|---|---|---|---|---|---|
| 0 (fully electric) | - | 3% | 4% | 5% | 7% | 9% |
| 1 to 50 | 130 miles or more | 3% | 4% | 5% | 18% | 19% |
| 1 to 50 | 70 to 129 miles | 6% | 7% | 8% | 18% | 19% |
| 1 to 50 | 40 to 69 miles | 9% | 10% | 11% | 18% | 19% |
| 1 to 50 | 30 to 39 miles | 13% | 14% | 15% | 18% | 19% |
| 1 to 50 | under 30 miles | 15% | 16% | 17% | 18% | 19% |
| 51 to 54 | - | 16% | 17% | 18% | 19% | 20% |
| 55 to 59 | - | 17% | 18% | 19% | 20% | 21% |
| 60 to 64 | - | 18% | 19% | 20% | 21% | 22% |
| 65 to 69 | - | 19% | 20% | 21% | 22% | 23% |
| 70 to 74 | - | 20% | 21% | 21% | 22% | 23% |
| 75 to 79 | - | 21% | 21% | 21% | 22% | 23% |
| 80 to 84 | - | 22% | 22% | 22% | 23% | 24% |
| 85 to 89 | - | 23% | 23% | 23% | 24% | 25% |
| 90 to 94 | - | 24% | 24% | 24% | 25% | 26% |
| 95 to 99 | - | 25% | 25% | 25% | 26% | 27% |
| 100 to 104 | - | 26% | 26% | 26% | 27% | 28% |
| 105 to 109 | - | 27% | 27% | 27% | 28% | 29% |
| 110 to 114 | - | 28% | 28% | 28% | 29% | 30% |
| 115 to 119 | - | 29% | 29% | 29% | 30% | 31% |
| 120 to 124 | - | 30% | 30% | 30% | 31% | 32% |
| 125 to 129 | - | 31% | 31% | 31% | 32% | 33% |
| 130 to 134 | - | 32% | 32% | 32% | 33% | 34% |
| 135 to 139 | - | 33% | 33% | 33% | 34% | 35% |
| 140 to 144 | - | 34% | 34% | 34% | 35% | 36% |
| 145 to 149 | - | 35% | 35% | 35% | 36% | 37% |
| 150 to 154 | - | 36% | 36% | 36% | 37% | 38% |
| 155 and above | - | 37% | 37% | 37% | 38% | 39% |
2025/26 to 2027/28 are HMRC's published tables. 2028/29 and 2029/30 apply the uplifts announced at Autumn Budget 2024 (electric up 2 points a year; all 1 to 50g/km cars fixed at 18% then 19%; every other band up 1 point a year, capped at 38% then 39%), which were left unchanged at the Autumn Budget on 26 November 2025 and the 2026 Spring Statement. Exact CO2 figures are rounded down to the nearest 5g/km. Diesels that do not meet the RDE2 standard add a 4% supplement, capped at the maximum rate.
The table below shows the same £45,000 P11D value on a fully electric SUV and a 150g/km petrol SUV in 2026/27. The electric driver pays £720 a year through payroll; the petrol driver pays £6,480. That is £5,760 a year less, or £480 a month in payroll terms, before a penny of fuel saving is counted, and the employer's Class 1A bill falls by £2,160 on top.
| Fully electric SUV | Petrol SUV | |
|---|---|---|
| P11D value | £45,000 | £45,000 |
| CO2 emissions | 0g/km | 150g/km |
| BIK rate 2026/27 | 4% | 36% |
| Taxable value | £1,800 | £16,200 |
| Tax at 20% (basic rate) | £360 a year | £3,240 a year |
| Tax at 40% (higher rate) | £720 a year | £6,480 a year |
| Employer Class 1A NIC at 15% | £270 a year | £2,430 a year |
Because the electric pathway is legislated through to 2030, a director choosing an EV today can see the whole cost line before signing. Even at the 9% cap in 2029/30, the £45,000 electric car below costs £1,620 a year at the higher rate. The petrol equivalent at 150g/km costs £26,460 in driver tax over the same four years as its band steps 36%, 36%, 37%, 38%, a difference of just under £22,000 for one car.
| Tax year | BIK rate | Taxable value | Tax at 40% |
|---|---|---|---|
| 2026/27 | 4% | £1,800 | £720 |
| 2027/28 | 5% | £2,250 | £900 |
| 2028/29 | 7% | £3,150 | £1,260 |
| 2029/30 | 9% | £4,050 | £1,620 |
Today a plug-in hybrid's rate depends on its official electric-only range: a 1 to 50g/km car with 130 miles or more of range is taxed like an EV, while one with under 30 miles of range sits at 16% in 2026/27. From 6 April 2028 that entire structure disappears. Every 1 to 50g/km car moves to a flat 18%, rising to 19% in 2029/30, regardless of range.
The planning point is order timing. Take a £45,000 PHEV with a 42-mile electric range: it costs a 40% taxpayer £1,800 a year in 2026/27 and £1,980 in 2027/28, then jumps to £3,240 in 2028/29, a 64% rise in one year. A typical four-year agreement signed now spends half its life on the flat rate, and a long-range PHEV loses its entire tax advantage over a short-range one overnight. If the driver can charge at home or at work, the fully electric version of the same car avoids the cliff completely, which is why our electric car leasing hub is where most company car conversations now start.
For a limited company director the BIK table is only half the picture. On Business Contract Hire the rentals are a trading expense: 100% can be set against profits when the car emits 50g/km or less, falling to 85% above that line, and where the car has private use half the VAT on rentals can usually be reclaimed, with all of it recoverable on a maintenance package, depending on circumstances. Stack those reliefs on a 4% BIK rate and a fully electric car is currently the standout way for a director to run a car through the business.
Model choice then becomes a P11D conversation as much as a monthly one. A Volvo EX90 and a Tesla Model 3 sit at very different list prices, so the same 4% band produces very different payroll deductions, and an optioned car carries every extra into the calculation. Intelligent Vehicle Finance is a phone-first specialist broker: we confirm the exact P11D value and BIK band on any car you are considering before you commit, across business and personal contract hire. IVF is a credit broker, not a lender; we source finance from a panel of trusted funders and may receive a commission from lenders for introducing you to them. Intelligent Vehicle Finance is also part of Global Vehicle Group, whose brands have funded more than 70,000 vehicles - so behind the personal service sits genuine group scale.
Multiply the car's P11D value by its HMRC appropriate percentage, then multiply that taxable value by your income tax rate. For example, a £45,000 electric car at 4% gives a £1,800 taxable value, which costs a 40% taxpayer £720 a year. Your employer pays Class 1A National Insurance at 15% on the same £1,800.
Fully electric cars (0g/km CO2) are taxed at 4% of P11D value for 2026/27. The rate is already legislated to rise to 5% in 2027/28, 7% in 2028/29 and 9% in 2029/30, and the November 2025 Budget left that pathway unchanged, so the roadmap is confirmed through to 2030.
Yes. HMRC applies exactly the same Benefit in Kind rules whether the company leases or buys the car. The charge is always based on the manufacturer's P11D list price when the car was new, not the rental the business actually pays, so leasing does not change your personal tax position.
It is the car's list price including VAT, delivery and any factory-fitted options, but excluding the first registration fee and road tax. Discounts do not reduce it: HMRC always uses the published list price, so it is worth checking the exact P11D figure before you choose a car.
From 6 April 2028 every car emitting 1 to 50g/km is taxed at a flat 18% regardless of electric range, rising to 19% in 2029/30. The current range-based bands of 4% to 16% disappear, so a PHEV ordered on a typical four-year cycle will spend part of its life on the much higher flat rate.
The employer pays Class 1A National Insurance at 15% of the car's taxable value each year. For a £45,000 electric car at 4% that is £270 a year, while the same value petrol car at 36% would cost the business £2,430, so the company saves alongside the driver when the fleet goes electric.
The BIK percentages and taxable values are the same across the UK. What differs is the income tax rate you multiply by: Scottish income tax bands are set separately, so a Scottish taxpayer may pay a different amount on the same car. Your payroll applies the correct rates automatically.
Diesel cars that do not meet the RDE2 emissions standard carry a 4% supplement on top of the CO2-based percentage, capped at the maximum rate. Most new diesels registered in recent years are RDE2-compliant, so the supplement mainly affects older vehicles, and diesel plug-in hybrids are exempt from it.
Rates are taken from HMRC's appropriate percentage ready reckoner (480: Appendix 2), updated 6 April 2026, and HMRC's future rates tables to 2027/28. The 2028/29 and 2029/30 figures apply the uplifts announced at Autumn Budget 2024, which were confirmed unchanged at the Autumn Budget on 26 November 2025 and the 2026 Spring Statement.
Reviewed by Stacey Smith, Brand Director, Intelligent Vehicle Finance. Last updated: July 2026.
This guide is general information, not tax or financial advice. IVF and XLCR Vehicle Management Ltd are not tax advisers: always confirm your position with your accountant. Rates are correct at July 2026 per HMRC's published tables; worked examples are illustrative and use England, Wales and Northern Ireland income tax rates.
Intelligent Vehicle Finance is a trading style of XLCR Vehicle Management Ltd, authorised and regulated by the Financial Conduct Authority (FRN 315268), and a BVRLA member. IVF is a credit broker, not a lender, and may receive a commission from lenders for introducing customers to them.