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Motor Tax Explained

Motor Tax Explained

Motor Tax Explained: The Ins and Outs of Vehicle Taxation

Driving a vehicle is a privilege that comes with certain responsibilities. One of these responsibilities is paying motor tax, also known as vehicle tax, road tax, or car tax, depending on where you live. Motor tax is a mandatory annual or biennial payment, often calculated based on the vehicle’s engine size, emissions, and type.

Motor tax is an important source of revenue for governments worldwide, funding infrastructure and public services. In this comprehensive guide, we’ll explain how motor tax works, how it’s calculated, and the latest updates on motor tax legislation and policies.

What is Motor Tax?

Motor tax, or vehicle excise duty (VED), is a tax levied by countries on motor vehicles. It’s used to fund road maintenance, construction, and other infrastructure projects, as well as transportation and environmental programs. Depending on the country, the tax may be paid to local or national government agencies.

Motor tax is typically based on the engine size, CO2 emissions, and fuel type of the vehicle, although other factors may also be considered. Overall, the goal of motor tax is to encourage cleaner and more efficient vehicles, while discouraging the use of gas-guzzlers and polluting vehicles.

How is Motor Tax Calculated?

The calculation of motor tax can vary significantly by country and region. In many cases, it’s based on a combination of vehicle characteristics, including engine size, emissions, fuel type, weight, and age. Here are some common factors used in motor tax calculations:

Engine size: This is measured in cubic centimeters (cc) and is often used as a proxy for the power of the vehicle. The larger the engine, the higher the tax.

Emissions: The CO2 emissions of the vehicle are a key factor in modern motor tax calculation. Euro emissions standards have been in place since the 1990s and have become ever more stringent. The latest (at the time of writing) is Euro 6, which came into effect from September 2015 for new vehicle registrations.

Fuel type: Clean and efficient alternative fuels such as electric vehicles, hybrid-electric vehicles, and hydrogen fuel cell vehicles may receive lower or even no motor tax, depending on the country.

Weight: Heavier vehicles typically require more energy and resources to move, and may hence be charged a higher tax.

Age: The age of the vehicle can also be used to determine its roadworthiness and pollution levels. In some cases, older vehicles may be charged a higher tax due to their lack of modern emissions control systems.

The specific formula used in motor tax calculation can vary by country and even by region within a country. In the UK, for instance, the motor tax is a sliding scale based on CO2 emissions for cars registered since March 2001. Cars registered before that date are taxed based on engine size. In the US, motor tax may be levied by states and counties, based on a combination of factors such as weight and fuel type.

The Latest Updates on Motor Tax

The field of motor tax is constantly evolving, with new laws, policies, and incentives being introduced every year. Here are some of the latest updates on motor tax from various countries:

UK: In March 2020, the UK government announced changes to the motor tax system, which will allow zero-emission vehicles to be exempt from the tax. From April 2020, the rates for all cars and vans will increase in line with inflation, with a maximum increase of £5 for most vehicles.

Ireland: The Irish government increased motor tax in 2021, with some vehicles seeing an increase of up to €126 per annum. This was met with backlash from motorists, who complained about the timing of the increase during the COVID-19 pandemic.

US: In California, electric vehicles will no longer be exempt from the state’s motor tax from 2020 onwards. Starting July 1, 2020, electric vehicle owners will pay a fee of $100 per year to help fund road repairs and maintenance.

India: India has introduced a voluntary vehicle scrappage scheme, which aims to encourage people to replace old and polluting vehicles with newer, more efficient ones. Under the scheme, vehicles over 15 years of age can be scrapped for a monetary incentive, provided the owner buys a new vehicle.

Conclusion

Motor tax is an important component of road usage and infrastructure funding, balancing the needs of drivers, government, and society at large. Although it can be a complex and often contentious topic, understanding the basics of motor tax can help you make informed choices about vehicle ownership and usage.

By keeping up to date with the latest motor tax legislation and policies, and choosing clean and efficient vehicles where possible, you can benefit both yourself and the environment, while contributing to a fair and sustainable transport system for everyone.


Motor Tax Online is a service that the Department of the Environment, Heritage and Local Government provides over the internet in order to allow residents of Ireland to pay their motor tax over the internet.

According to the Motor Tax Online website, private cars, motorcycles, agricultural tractors, excavators, diggers, combine harvesters, hearse, vehicles that have been modified to be used by individuals with disabilities, some motor caravans, and vintage/veteran vehicles can have their motor tax paid online.

In order to pay the motor tax online, the individuals will need a personal identification number, the vehicle’s identification number, vehicle insurance detail (such as the name of the insurer, policy number, and expiry date), and information related to the payment method that will be used (Visa, MasterCard, Laser, or pre-paid voucher).

The Personal Identification Number, or PIN, needed to pay the motor tax is provided on the renewal/reminder notice that is sent out when the person needs to pay a new motor tax.

Since a system has been instituted in the United Kingdom that assesses a fine if the motor tax is not paid within a month of the previous one expiring, the account will be held in arrears. When paying through the Motor Tax Online site, an individual is permitted to pay as many as three months’ worth of arrears. After three months, the PIN will become invalid, forcing the person to pay their motor tax through a local motor tax office