UK Car Tax Calculator (VED) by Registration

Effortlessly estimate your annual vehicle excise duty (VED) based on your car’s registration year and CO2 emissions.

Calculate Your Vehicle Tax

UK Car Tax Rates (VED) – Post April 1, 2017 (Standard Rate)

CO2 Emissions (g/km)	VED Rate (First Year)	VED Rate (Standard Annual)
0	£0	£0
1-50	£25	£150
51-75	£105	£170
76-100	£125	£190
101-125	£145	£210
126-150	£165	£230
151-175	£185	£250
176-190	£205	£270
191-225	£225	£290
226-255	£245	£310
Over 255	£265	£330

Note: A supplement of £390 per year is applied to the standard rate for vehicles with a list price (including optional extras) of over £40,000, for the tax years 2017-18 through 2024-25. Electric vehicles have £0 VED.

What is UK Car Tax (VED)?

UK Car Tax, officially known as Vehicle Excise Duty (VED), is an annual tax levied by the Driver and Vehicle Licensing Agency (DVLA) on most vehicles used or kept on public roads. The amount payable is based on several factors, primarily the vehicle’s CO2 emissions, fuel type, and its first registration date. The goal of VED is to encourage the use of lower-emission vehicles and generate revenue for the government. Understanding your car tax is crucial for budgeting and ensuring you comply with legal requirements.

Who should use this calculator? Anyone who owns or is looking to purchase a car in the UK can benefit from this calculator. It’s particularly useful for:

• New car buyers wanting to compare running costs.
• Existing car owners needing to estimate their annual VED.
• Individuals considering purchasing a vehicle registered after April 1, 2017, to understand the standard VED implications.
• Those looking to understand how CO2 emissions and fuel type impact their car tax.

Common misconceptions about car tax include:

• “All electric cars are tax-free forever.” While electric cars currently have £0 VED, this is subject to government review and may change in the future. They are also exempt from the ‘expensive car supplement’.
• “My VED never changes after the first year.” This is only true for vehicles registered before April 1, 2017. For vehicles registered after this date, most pay a standard annual rate, but cars over £40,000 list price have an additional supplement for several years.
• “My CO2 emissions are all that matter.” For cars registered after April 1, 2017, the CO2 emissions primarily determine the *first year* rate. The *standard annual rate* is a flat fee for most cars, regardless of emissions, unless the car is electric or falls into the expensive car category. For cars registered before this date, CO2 emissions are the primary factor for all years.

UK Car Tax (VED) Formula and Mathematical Explanation

The calculation of UK Car Tax (VED) is not a single, simple formula but rather a system that has evolved, with different rules applying based on the vehicle’s registration date. The key distinction is between vehicles registered before April 1, 2017 and those registered on or after April 1, 2017.

Vehicles Registered On or After April 1, 2017

For these vehicles, VED is divided into two parts: a First Year Rate and a Standard Rate.

• First Year Rate: This is directly determined by the vehicle’s CO2 emissions. The calculator uses specific VED bands and rates for the first year, which are progressively higher as CO2 emissions increase. Electric vehicles (0g/km CO2) are exempt.
• Standard Rate (Years 2-6): For most petrol and diesel cars, a flat standard rate applies from the second year onwards. This rate is £190 for cars registered between 1 April 2017 and 31 March 2025, regardless of CO2 emissions, as long as they are not zero-emission. Electric vehicles remain £0.
• Expensive Car Supplement: If a vehicle’s list price (including optional extras) was over £40,000 when new, an additional supplement is added to the standard rate for the second to sixth year of registration. This supplement is currently £390 per year.
• Zero Emission Cars: Fully electric cars have a VED rate of £0, including the first year.

Simplified Formula for Post-April 2017:

Annual VED = First Year Rate (based on CO2) + Standard Rate (if applicable) + Expensive Car Supplement (if applicable)

Example Calculation Logic: A petrol car registered in 2020 with 130 g/km CO2 emissions would pay the ‘126-150g/km’ first-year rate (£165) and then the standard rate (£190) for subsequent years (assuming list price under £40k).

Vehicles Registered Before April 1, 2017

For older vehicles, the VED is solely based on CO2 emissions, and the rate applies annually.

Formula for Pre-April 2017:

Annual VED = VED Rate based on CO2 Band (from specific tables for pre-2017 vehicles)

These tables have numerous CO2 bands with different rates. For simplicity, this calculator will primarily focus on the post-April 2017 system as it’s more common for current tax estimations, but it can provide a general indication for older cars using the CO2 bands as a proxy.

Variables Table

Variable	Meaning	Unit	Typical Range
Registration Year	The year the vehicle was first registered in the UK.	Year	1998 – Present
CO2 Emissions	Carbon Dioxide emissions produced by the vehicle per kilometre.	g/km	0 – 500+
Fuel Type	The primary fuel source for the vehicle.	Type	Petrol, Diesel, Electric, Hybrid, etc.
List Price (New)	The original price of the vehicle including optional extras.	£	£10,000 – £150,000+
First Year VED Rate	The tax rate applicable for the first 12 months of registration (for vehicles registered after April 2017).	£	£0 – £2,365 (based on CO2 and list price)
Standard Annual VED Rate	The tax rate applicable for subsequent years (Year 2 onwards) for most vehicles.	£	£0 (Zero Emission) / £190 (Standard) / £580 (Expensive Car Supplement)

Practical Examples of UK Car Tax Calculation

Let’s look at a couple of real-world scenarios to illustrate how car tax is calculated.

Example 1: A relatively new, low-emission petrol car

Vehicle Details:

• Registration Year: 2021
• Fuel Type: Petrol
• CO2 Emissions: 115 g/km
• Original List Price: £25,000

Calculation Steps:

1. Check Registration Year: 2021 is after April 1, 2017.
2. Determine First Year Rate: 115 g/km falls into the 101-125 g/km band for the first year, which costs £145.
3. Determine Standard Annual Rate: As the CO2 emissions are not 0g/km and the list price is below £40,000, the standard annual rate applies. This is £190.
4. Check for Expensive Car Supplement: The list price (£25,000) is not over £40,000, so no supplement applies.

Result:

• First Year Tax: £145
• Subsequent Annual Tax (Years 2-6): £190
• Total Tax for the first year: £145 + £190 = £335

Financial Interpretation: This car has a moderate tax burden, with a higher cost in the first year due to its emissions, settling to a fixed annual charge thereafter. This is typical for many family cars.

Example 2: A higher-emission diesel car, registered just before the change

Vehicle Details:

• Registration Year: 2016
• Fuel Type: Diesel
• CO2 Emissions: 155 g/km
• Original List Price: £30,000

Calculation Steps:

1. Check Registration Year: 2016 is BEFORE April 1, 2017.
2. Determine VED Band: For vehicles registered before April 2017, VED is based solely on CO2 emissions. 155 g/km typically falls into a higher VED band. Using the VED rates applicable for cars registered between 1 April 2015 and 31 March 2017:
   • Cars with CO2 emissions between 151 and 170 g/km pay £265 per year.
3. Diesel Supplement: For cars registered between 1 April 2017 and 31 March 2018, diesel cars which met the second edition of the Euro 6 standard (Euro 6d) were exempt from the supplement. However, for cars registered *before* April 1, 2017, the standard VED rate applies. There was a specific diesel supplement introduced for cars registered between April 2017 and March 2018, but this example is for a 2016 car.

Result:

• Annual Tax: £265

Financial Interpretation: This older diesel car has a fixed annual tax of £265, which is higher than the standard rate for many newer petrol cars. This highlights how VED rules have incentivised lower-emission vehicles over time.

How to Use This UK Car Tax Calculator

Using our VED calculator is straightforward and designed to give you a quick estimate of your car tax liability.

1. Enter Registration Year: Input the year your vehicle was first registered. For accurate results aligning with current VED rules, enter a year from 2017 onwards. If you enter an older year, the calculator will provide an estimate based on CO2 bands, but specific pre-2017 tables may vary slightly.
2. Input CO2 Emissions: Find your car’s CO2 emissions in g/km. This is usually listed on your V5C log book, your car’s certificate of conformity, or the manufacturer’s specification sheet.
3. Select Fuel Type: Choose the primary fuel type of your vehicle (Petrol, Diesel, Other/Electric). This can influence specific tax rules, particularly for older vehicles or the ‘expensive car supplement’.
4. Click ‘Calculate Tax’: Once all fields are populated, press the ‘Calculate Tax’ button.

How to Read Results:

• Primary Result (£): This displays your estimated annual car tax for the current tax year. For vehicles registered after April 1, 2017, this generally reflects the standard annual rate (unless it’s an electric car or subject to the expensive car supplement).
• VED Band: Indicates the CO2 emission band your vehicle falls into, which primarily determines the first-year tax for post-2017 vehicles.
• Tax Rate Logic: Provides a brief explanation of how the calculated tax was determined based on your inputs.
• Notes: Important disclaimers, such as potential changes in tax rates or that this is an estimate.

Decision-Making Guidance: The results can help you compare the ongoing costs of different vehicles. A higher car tax implies either higher CO2 emissions or that the car is considered ‘expensive’ based on its original list price. This information is vital when budgeting for vehicle ownership.

Key Factors That Affect UK Car Tax Results

Several variables significantly influence the amount of Vehicle Excise Duty (VED) you’ll pay. Understanding these factors can help you make informed decisions when choosing a vehicle or managing your car’s running costs.

1. First Registration Date: This is arguably the most critical factor. The UK government has reformed VED multiple times. Vehicles registered before April 1, 2017, are taxed based on CO2 emissions using older, often more complex, banding systems. Vehicles registered on or after April 1, 2017, pay a higher rate in the first year based on CO2, followed by a flat standard rate for most cars, plus a potential supplement for expensive vehicles. Electric vehicles registered after April 1, 2017, are £0 VED.
2. CO2 Emissions (g/km): For vehicles registered before April 1, 2017, CO2 emissions directly determine the annual tax band. For vehicles registered after April 1, 2017, CO2 emissions primarily dictate the *first-year* tax rate. Lower emissions are always rewarded with lower tax.
3. Fuel Type: While the distinction between petrol and diesel VED was more pronounced before April 2017, and a specific diesel supplement was introduced for cars registered between April 2017 and March 2018, the primary differentiator now is between emitting vehicles (petrol, diesel) and zero-emission vehicles (like fully electric cars). Electric cars currently benefit from £0 VED.
4. Original List Price (Above £40,000): For cars registered on or after April 1, 2017, if the vehicle’s list price (including optional extras) exceeded £40,000 when it was new, an additional ‘expensive car supplement’ is added to the standard annual VED for the second to sixth year of registration. This significantly increases the tax burden for higher-value vehicles.
5. Vehicle Age: As mentioned, the age is primarily defined by the registration date relative to VED rule changes (pre-April 2017 vs. post-April 2017). Within the post-2017 rules, the tax calculation changes after the first year, with the ‘expensive car supplement’ also applying only for a set number of years (currently 5 years from the second year of registration).
6. Government Policy Changes & Inflation: VED rates are subject to change by the government. Rates can be adjusted annually, often in line with inflation, or specific policies might be introduced (like the diesel supplement or changes to the expensive car supplement threshold). Relying solely on historical data without checking current rules can lead to inaccurate estimations.

Frequently Asked Questions (FAQ) about UK Car Tax

Q1: How do I find my car’s CO2 emissions?

You can usually find your car’s CO2 emissions (in g/km) on your V5C registration certificate (log book), often on page 2. It may also be listed in your car’s manual, on the manufacturer’s website, or on a sticker inside the vehicle (e.g., in the door jamb or under the bonnet).

Q2: My car is electric. Do I pay any car tax?

Currently, fully electric vehicles registered on or after 1 April 2017 are exempt from paying Vehicle Excise Duty (VED), meaning they have £0 car tax. This exemption also applies to the ‘expensive car supplement’ for these vehicles. However, this policy is subject to review by the government.

Q3: What is the difference between the first year rate and the standard rate?

The first year rate (First Year VED) applies only to the initial 12 months of a vehicle’s registration (for cars registered on or after 1 April 2017). It is based on the vehicle’s CO2 emissions. The standard rate applies from the second year onwards. For most petrol and diesel cars registered after April 2017, this is a flat annual fee (currently £190), unless the car originally cost over £40,000, in which case an additional supplement applies for a set period.

Q4: My car was registered in 2017. Which rules apply?

If your car was registered between 1 April 2017 and 31 March 2018, it falls under the newer VED system. You would have paid a First Year Rate based on CO2 emissions, followed by a Standard Rate. Diesel cars registered during this specific window may have had a supplement, depending on whether they met specific Euro 6 standards.

Q5: Can my car tax increase even if my CO2 emissions don’t change?

Yes. For cars registered after 1 April 2017, the standard annual rate applies from the second year onwards. This standard rate is fixed for most vehicles (£190). However, if the car’s original list price was over £40,000, an additional supplement (£390) is added to this standard rate for the second through sixth year. So, your tax can increase after the first year if your car falls into the ‘expensive car’ category.

Q6: What happens if I don’t pay my car tax?

Driving a vehicle on public roads without valid car tax is illegal. The DVLA uses automatic number plate recognition (ANPR) cameras to detect untaxed vehicles. If caught, you risk facing a significant fine (penalty notice), your vehicle may be clamped or seized, and you will still be required to pay the outstanding tax.

Q7: Does the VED calculation include road fund license changes?

Yes, Vehicle Excise Duty (VED) is the official term for what is commonly referred to as the ‘road fund license’. The calculator helps you estimate this annual cost based on the latest VED rules set by the UK government.

Q8: Are there any exemptions from paying car tax?

Yes, certain vehicles are exempt from VED. The most common exemption is for zero-emission electric vehicles. Additionally, vehicles registered before 1 August 1983 are exempt, and vehicles used exclusively for fire services, police services, or by disabled individuals who receive a ‘valid exemption certificate’ from the DVLA are also exempt.

Related Tools and Resources

Explore these related tools and guides to further understand your vehicle finances and tax obligations:

• Car Insurance Calculator: Estimate your annual car insurance premiums.
• Fuel Cost Calculator: Calculate your estimated fuel expenses based on mileage and consumption.
• Company Car Tax Calculator: Understand the tax implications if your company car is provided for private use.
• Car Depreciation Calculator: See how much value your vehicle might lose over time.
• Understanding UK Road Tax Bands: A detailed guide to historical and current VED bands.
• Check Vehicle Details with DVLA: Official government link to check vehicle tax status and history.