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Garrett Walsh

Senior insurance professional with over 20 year’s experience in claims management.

Updated: | 7 minute read

It’s easy to feel confused when it comes to motor taxation. CO2 emissions, vehicle evaluations, tax rates - there’s much to consider to ensure your car is legal and roadworthy on Irish roads. 

In reality, the process is far more straightforward than one might imagine, but it always helps if you have a comprehensive guide to help you along the way.  This article covers everything from the basics of motor tax, its mandatory requirements, how rates are determined, and online payment. Let’s make a complicated topic as clear as we can. 

What Is Motor Tax and Why Is It Mandatory in Ireland?

Motor tax is a charge applied to motor vehicles in Ireland and mandatory for almost all vehicle owners - with disabled drivers or passengers being the only exception. This tax contributes to maintaining and improving public roads, helping to ensure a safe and efficient transportation network.

Legal Obligations for Vehicle Owners

This is a legal obligation, and not doing so can lead to heavy fines and penalties, while the Garda retains the right to impound any untaxed vehicle. Motor tax must be paid annually, half-yearly, or quarterly, with proof of payment displayed on the car as a tax disc. 

How Are Motor Tax Rates Determined in Ireland?

Several factors influence motor tax rates in Ireland, including vehicle type, engine size, emission levels, and specific tax classes. These levels are considered to ensure that the tax rates are equitable and reflect the vehicle's impact on the environment and public infrastructure.

Evaluating Vehicle Type and Use

What vehicle you have and how you use it will significantly affect how much you are taxed. Vehicles are classified into different categories, such as:

  • Private cars
  • Goods vehicles
  • Public service vehicles

Assessing Engine Size and Emission Levels

Engine size and emission levels are the biggest factors in calculating motor tax rates. Towards the end of 2022, the Irish government launched its Climate Action Plan 2023, which aims to reduce carbon emissions by 51% by 2030 - and a reduction in car emissions is a huge part of this.   

Connecting Emissions to Environmental Policies

Like many countries around the world, Ireland is now forcing drivers with higher emission vehicles to pay more in tax compared to more environmentally friendly models, reflecting their greater environmental impact. Emissions are measured in CO2 output, with lower-emission vehicles benefiting from reduced tax rates.

Calculating Tax Based on CO2 Output

CO2 output is calculated based on a tiered system that applies lower rates to vehicles with lower emissions, with electric cars, unsurprisingly, the cheapest cars to tax. This system encourages vehicle owners to consider the environmental impact of their vehicles and opt for greener alternatives when possible.

Can You Pay Your Motor Tax Online in Ireland?

Yes, in fact, it’s greatly encouraged. The online payment system is simple and significantly quicker than the mail-in paper process. However, not all vehicles can initially be taxed online. 

The following vehicles can be taxed and renewed online:

  • Private cars
  • Motorcycles
  • Agricultural tractors, excavators/diggers and combine harvesters
  • General haulage tractors
  • Dumpers, off-road dumpers and forklifts
  • Hearses
  • Vintage or veteran vehicles
  • Vehicles adapted for use by disabled persons
  • SPSV vehicles (Taxi/Hackney/Limousine)

The following vehicles can be renewed online, but the initial taxation needs to be done at your local motor tax office

  • Motor caravans
  • Mobile machines
  • Commercial vehicles
  • Exempt State-Owned Vehicles
  • Exempt Emergency Services Vehicles
  • Exempt Diplomatic Vehicles
  • Emergency Rescue Vehicle
  • Youth Community Bus 

Why Is the Vehicle Registration Certificate Vital for Taxation?

Your vehicle registration certificate might not be as important as your passport, but it’s getting pretty close. The vehicle registration certificate is a crucial document in the motor tax process, linking the vehicle's identity to its tax obligations. This certificate contains essential information about the vehicle, including its make, model, and emission levels, which are vital for accurate tax assessment.

Losing it isn’t the end of the world, but you must apply for a replacement copy immediately. Here are the associated fees:

  • Tax Disc - €6
  • Registration book/certificate - €12
  • Vehicle licensing certificate - €12

You will then need to complete the following steps:

  1. Complete Form RF134 (pdf)
  2. Have the form witnessed by somebody at a Garda station
  3. Send your completed form with the appropriate fee to your motor tax office.

Change of Vehicle Ownership and Motor Tax

If you sell or trade-in your vehicle, you need to register these changes as quickly as possible, as you won’t be able to register a new vehicle until this has gone through. In this case, both the seller and the dealer must complete the Form RF105.

Other changes might include:

Change in owner details

  • To renew your motor tax where there is a change in owner details (for example, name/address (e.g. on marriage), use Form RF100A

Change in vehicle details

Refunds on your Motor Tax

There are certain instances when you might be able to claim a refund on your motor tax, such as when the vehicle:

  • Has been scrapped, destroyed or sent permanently out of the country
  • Has been stolen and has not been recovered by the owner
  • Has not been taken out or used in a public place at any time since the issue of the current disc

Alternatively, the owner of the vehicle can apply for a refund if they have stopped it because of:

  • Illness, injury or other physical disability
  • You are absent from the country for business or educational purposes
  • You are serving overseas with the Defence Forces

To apply for a refund, you’ll need to fill in Form RF120, collect relevant supporting documentation and have everything witnessed and stamped by a member of the Garda.

How to Renew Your Motor Tax in 3 Easy Steps

Renewing your motor tax in Ireland is a straightforward process that can be completed in three simple steps.

1. Initiate the Renewal Process

The first step involves initiating the renewal process, which can be done online through the official motor tax website. This step requires entering the vehicle's registration number and a PIN on the motor tax renewal form sent by post.

2. Submit the Necessary Documentation

The next step involves submitting the required documentation, which may include the vehicle registration certificate, proof of insurance, and, in some cases, a roadworthiness certificate. This documentation ensures that the vehicle meets the legal requirements for taxation.

3. Finalise Renewal and Payment

The last step is to finalise the renewal and submit the payment. Once the payment is processed, the new tax disc will be sent by post, which must be displayed on the vehicle.

How Do Vehicle Types Affect Tax Rates?

Special Considerations for Commercial and Public Service Vehicles

Commercial and public service vehicles, such as buses, trucks, and taxis, are subject to specific tax considerations. These vehicles may qualify for reduced tax rates or different tax classes. 

Vehicles used by a disabled driver or for a disabled passenger may qualify for a tax exception under the Disabled Drivers and Disabled Passengers Regulations

How to Obtain a Motor Tax Disc

Obtaining a motor tax disc is easy and involves applying for it online or through the postal system. This disc serves as visible proof of tax payment and compliance with legal obligations. Failure to display an insurance disk carries an initial fixed charge of €60 (rising to €90 after 28 days.)

Receiving and Displaying Your Tax Disc

Once the application is processed, the tax disc is sent to the vehicle owner by post. It must be displayed on the vehicle's windshield, ensuring it is visible from the outside. 

Maintaining Legal Roadworthiness - What You Need to Know

Maintaining legal roadworthiness is crucial for all vehicles in Ireland. This involves ensuring the car is safe, meets emission standards, and complies with motor tax regulations.

Ensuring Vehicle Compliance

Vehicle compliance involves regular maintenance and adherence to safety standards. Vehicle owners must ensure that their vehicles are in good condition and meet the legal requirements for road use.

Regular Inspections and Certifications

Regular vehicle inspections and certifications are essential for maintaining roadworthiness. In Ireland, this is the National Car Test, which is a mandatory inspection every year or every two years, depending on the make of the car and your age.  It probably goes without saying that if your car fails the NCT, it won’t be getting taxed anytime soon. 

Explore Motor Tax Solutions with 123.ie

Motor taxation, like any taxation, usually seems much more complicated than it actually is. While there may be various factors involved and steps - or hoops that need to be jumped through - by working through the process slowly and carefully, there’s no reason it should take you more than an hour or so. 

Taxation is, of course, only half of it. For comprehensive support, solutions and some of the cheapest car insurance around, 123.ie is your go-to provider that puts the finishing touches to your driving experience. If you have any questions about our policies and how they might relate to motor tax, feel free to get in touch, and we’ll be happy to answer them.  

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