A first car can look affordable until you add insurance, fuel, servicing and road tax. Understanding what are the different road tax categories in the UK helps you compare cars properly before you commit – especially if you are choosing between an older petrol car, a hybrid or an electric vehicle.

Road tax is the everyday name for Vehicle Excise Duty (VED). It is charged according to the vehicle’s type, age, emissions information and, in some cases, its original list price. The rules can feel complicated because different registration dates sit under different systems.

What are the different road tax categories in the UK?

For most learner drivers and newly qualified motorists, the key categories are based on when a car was first registered. The main groups are cars registered before 1 March 2001, cars registered from 1 March 2001 to 31 March 2017, and cars registered on or after 1 April 2017.

There are also separate tax classes for motorcycles, vans, lorries, disabled tax vehicles, historic vehicles and other specialist vehicles. But if you are shopping for your first everyday car, the registration-date rules are usually where you need to start.

Cars registered before 1 March 2001

Older cars in this group are taxed mainly by engine size rather than official CO2 emissions. There are two broad bands: engines up to 1,549cc and engines over 1,549cc.

That can make a small-engined older car cheaper to tax than a larger one, but road tax should never be the only deciding factor. An older vehicle may cost more in fuel, repairs, insurance or London charging-zone fees. Check the full running cost, not just the annual VED figure.

Cars registered from 1 March 2001 to 31 March 2017

These cars use the familiar CO2 emissions bands, traditionally labelled A to M. In general, the more CO2 a car produces, the higher its annual tax bill. Low-emission cars sit in the lower bands, while higher-emission petrol and diesel cars are placed in more expensive bands.

This is why two similar-looking used cars can have very different tax costs. A small change in engine, gearbox, model year or official emissions figure can move a vehicle into another band. Always check the specific registration number rather than assuming every version of a model is taxed the same way.

For many used-car buyers, this category offers a useful lesson: a low purchase price does not always mean low ownership costs. A car in a higher CO2 band may look like a bargain but could cost considerably more over several years.

Cars registered on or after 1 April 2017

The current system for newer cars works differently. In the first year, the rate is based on the car’s official CO2 emissions. That first payment is normally included when the vehicle is registered for the first time.

After the first year, most cars move to a standard annual rate. The emissions figure still matters for year one, but it is no longer the main factor for the standard rate paid in later years. This can surprise drivers who expect a low-emission petrol or hybrid car to remain in a very cheap band forever.

Electric cars are also part of this system. Since April 2025, electric vehicles have generally been required to pay VED too, rather than being automatically exempt. Tax rules and rates can change with government budgets, so use the official vehicle tax checker before you buy or renew.

The expensive car supplement

Some newer cars have an additional charge known as the expensive car supplement. It applies when a car’s original list price was above the government threshold, which is currently £40,000 for relevant vehicles.

The supplement is paid for five years, starting from the second time the vehicle is taxed. It is based on the vehicle’s list price when new, not what you paid for it as a used car. That means a three-year-old electric car bought below £40,000 may still attract the supplement if its original list price exceeded the threshold.

Optional extras fitted when new can count towards that original list price. If you are considering a premium model, ask the seller to confirm whether the supplement applies and check the vehicle’s tax status yourself. It can make a meaningful difference to a first-year ownership budget.

For 2026/27, cars first registered between 1 March 2001 and 31 March 2017 are taxed according to their CO₂ emissions. (GOV.UK)

🚗 UK road tax bands — 2026/27

So if you’re specifically looking for cheap cars to tax, the £20 bands (A and B) are particularly relevant. (GOV.UK)

⚠️ Important for buying a £20-tax car

The registration date matters. A newer car with low CO₂ emissions isn’t necessarily £20 — cars registered on or after 1 April 2017 generally pay £200 a year after the first-year tax. (GOV.UK)

There is also a separate rule for electric cars registered between 1 March 2001 and 31 March 2017, which are currently £20 per year. (GOV.UK)

Other Vehicle Excise Duty classes to know about

Cars are not the only vehicles on the road, so VED includes several other categories. Motorcycles have their own rates, usually linked to engine size. Light goods vehicles, such as many vans, are generally taxed under a separate flat-rate class rather than car CO2 bands.

Lorries, buses, agricultural vehicles and private heavy goods vehicles have further classes that reflect how they are used and their weight. These are more relevant to commercial drivers and businesses than to most learner drivers, but they show why the term “road tax” covers much more than private cars.

Some vehicles may qualify for a disabled tax class. This is not automatic, and eligibility depends on the driver or passenger receiving specific mobility benefits and meeting the relevant conditions. A vehicle in this class must be used for the benefit of the eligible person.

Historic vehicles can be exempt from VED once they reach the qualifying age. The exemption operates on a rolling basis, but eligibility must be claimed and the vehicle must meet the conditions. Do not assume every classic-looking car is tax-exempt.

How to check a car’s road tax before buying

When you find a car you like, ask for its registration number and check its tax details before arranging payment. This gives you the current tax rate, expiry date, fuel type, CO2 figure and other core vehicle information.

Look at the V5C log book too. Its date of first registration is particularly useful because it tells you which road tax system is likely to apply. If the seller cannot provide the V5C or the details do not match the car, pause and investigate before progressing.

Road tax does not transfer with a vehicle when it is sold. The previous keeper receives any refund they are due for complete unused months, while the buyer must tax the vehicle in their own name before driving it away. This catches out plenty of first-time buyers.

If the car is kept off the road and not taxed, a Statutory Off Road Notification, often called SORN, may be needed. A SORN vehicle cannot be driven or parked on a public road, apart from limited legal exceptions such as travelling to a pre-booked MOT test.

Choosing a car with tax and confidence in mind

A sensible first-car choice balances road tax with insurance group, fuel economy, reliability, safety features and the condition of the individual vehicle. A lower VED bill is welcome, but it will not compensate for poor tyres, overdue servicing or expensive insurance.

For new drivers in North London, it is also worth thinking about the journeys you will actually make. If regular driving includes areas with clean-air or emissions charges, check whether the vehicle meets the relevant standards. Road tax and local charging schemes are separate costs, so paying one does not exempt you from the other.

At CJL Driving School, we encourage learners to build safe, smart habits before they pass – and that includes understanding the responsibilities that come with owning a vehicle. Knowing a car’s tax category before you buy gives you one less surprise and more confidence when you get behind the wheel.

Before choosing any car, check its exact registration details, calculate the total monthly cost and leave room in your budget for maintenance. The right car is not simply the cheapest one to buy; it is the one you can afford to run safely and reliably.