This guide is for the driver who is not hiring. Maybe you are bringing your own car over from Britain or the Continent. Maybe you live in Northern Ireland and are heading south for the weekend. Maybe you live in the Republic and are heading north. The hire-car version of these questions is in our car hire excess insurance guide.
The short version is that a green card is rarely the thing you need. Valid cover and proof of it are what matter, and the rules are different on each side of the border.
Do you need a green card for Ireland?
A green card is an international certificate of motor insurance, issued on behalf of a national insurers' bureau (Directive 2009/103/EC, Article 1(5), checked October 2026). It proves that your policy covers you in a country where it might not be obvious. Whether you need one depends on two different tests, one for each side of the border.
Entering the Republic of Ireland
The test is where the car is normally based. Under the Directive, that is the country whose registration plate the car carries (Article 1(4)).
| Your car is normally based in… | Green card at entry? | Source |
|---|---|---|
| The EU, Iceland, Liechtenstein, Norway, Switzerland, Andorra, Bosnia and Herzegovina, Montenegro or Serbia | Not required | Multilateral Agreement, Council of Bureaux (page last updated 8 September 2025, checked October 2026) |
| The UK, meaning Great Britain or Northern Ireland | Not required from 2 August 2021 | Decision (EU) 2021/1145, Article 2 (checked October 2026) |
| Anywhere else | A valid green card or a certificate of frontier insurance before entering the EU | Directive 2009/103/EC, Article 8(1) (checked October 2026) |
Put together, the Republic does not require a green card at entry for a car normally based in the EU, Iceland, Liechtenstein, Norway, Switzerland, Andorra, Bosnia and Herzegovina, Montenegro, Serbia or the UK. The Council of Bureaux puts it this way: "36 of the 47 countries participating in the Green Card system apply the Multilateral Agreement", made up of the 27 EU member states, Iceland, Liechtenstein and Norway, and "Andorra, Bosnia and Herzegovina, Montenegro, Serbia, Switzerland and the United Kingdom".
None of that changes the basic rule: you still need valid insurance that covers the Republic, at least at the legal minimum. Ask your insurer to confirm it.
Entering Northern Ireland
Northern Ireland is in the UK, and the UK sets its own test. That test is where the insurance was issued, not where the car is registered. This is from GOV.UK, Visiting the UK as an EU, EEA or Swiss citizen (updated 15 May 2026, checked October 2026):
| Your insurance was issued in… | What GOV.UK says to carry |
|---|---|
| The EU, Andorra, Iceland, Liechtenstein, Norway, Serbia or Switzerland | "an insurance green card or other valid proof of insurance" |
| Another country in the green card system | "you will need to carry a green card" |
| A country outside the green card system | "your vehicle will need UK vehicle insurance" |
"Other valid proof" has to be a document from your insurer that shows the name of the insurer, the number plate or other identifying details of the vehicle, and the period of cover.
The two lists are not the same. GOV.UK's first list leaves out Bosnia and Herzegovina and Montenegro, even though both are in the Multilateral Agreement. We report GOV.UK's rule as GOV.UK states it. If your insurance comes from either country, ask your insurer what to carry north.
What changed in 2021, and why half the internet still says otherwise
Only two countries changed in 2021: the UK and Montenegro. EU-registered cars were already covered by the Directive, and nothing about them changed that year.
For UK-based cars, the change is Commission Implementing Decision (EU) 2021/1145 of 30 June 2021 (OJ L 247, 13.7.2021, p. 100). Article 2 reads:
From 2 August 2021 Member States shall refrain from making checks of insurance against civil liability in respect of all types of vehicles normally based in the United Kingdom, with the exception of military vehicles registered therein, at their entry in the Union.
Article 1 says the same for Montenegro. Read the Decision on EUR-Lex (checked October 2026).
Two things follow from that wording:
- It is about checks at the border. The green card still exists. Your insurer can still issue one, and some drivers carry it as handy proof of cover.
- It does not mean nobody ever checks. As amended by Directive (EU) 2021/2118 (checked October 2026), the Directive still allows insurance checks that are "non-discriminatory, necessary and proportionate", either as part of a control not aimed only at insurance, or as part of a general system that also covers domestic cars and does not require the vehicle to stop.
So why do so many pages still tell UK drivers they need a green card? Much of the advice was written before mid-2021, and some of it has not been updated since. One GOV.UK page, Driving in the EU after Brexit, was last updated in August 2019. It still says: "You will need to carry a motor insurance green card when driving in the EU and EEA." That was guidance about a future that did not happen in that form. The Decision above is what applies now.
Crossing the border in your own car
There is no routine border check between the Republic and Northern Ireland, and you may not notice that you have crossed. What decides whether you are covered is your insurer's territorial cover, and that is written on your policy. The rules above still apply: you need valid insurance on both sides.
Republic-registered car into Northern Ireland
- Cover. Check that your policy covers Northern Ireland. EU law makes an EU motor policy cover the whole EU on a single premium (Directive 2009/103/EC, Article 14, checked October 2026). Northern Ireland is no longer in the EU, though, so cover there is a term of your policy. Look at the territorial limits on your certificate or schedule, or ask your insurer.
- Proof. Your insurance was issued in the EU, so GOV.UK says to carry a green card or other valid proof of insurance from your insurer.
- Units. Speed limits are in mph and distances in miles. Prices, including fuel and parking, are in pounds sterling (£). See our speed limits guide.
NI-registered car into the Republic
- Cover. A Northern Ireland car is UK-based. GOV.UK, Vehicle insurance: driving abroad (checked October 2026), says "All UK vehicle insurance provides the minimum third party cover to drive in" the EU, including Ireland. Anything beyond that minimum, such as damage to your own car, breakdown cover or a courtesy car, depends on your policy.
- Proof. No green card is needed at entry (Decision (EU) 2021/1145, Article 2). The same GOV.UK page says: "You do not need to carry a green card when you drive in the EU (including Ireland)… You still need valid vehicle insurance."
- Units. Speed limits are in km/h and distances in km. Prices are in euro (€). Tolls apply on some roads, and the M50 around Dublin has no barrier. See our toll roads guide.
The same applies to a car from Great Britain arriving by sea. If you are planning a crossing on the island itself, our car ferries guide covers the four short ferries.
What your own policy actually covers abroad
The law guarantees a minimum: third-party cover for injury to other people and damage to their property. It does not guarantee the rest of what you pay for at home.
In the Republic, the Road Traffic Act 1961 (revised Act, updated to 4 September 2026, checked October 2026), section 56(1), requires cover for injury to person or property caused by negligent use of the vehicle "against all sums without limit". Section 56(2)(a) lets the property part be limited "to the sum of €1,300,000 per claim".
In Northern Ireland, the Road Traffic (Northern Ireland) Order 1981, Article 92 (checked October 2026), requires a policy to cover liability for death, bodily injury or damage to property. Article 92(2)(b) says the policy need not provide more than £1,200,000 for property damage from any one accident. legislation.gov.uk lists outstanding changes to the Order that it has not yet applied, but none of them is to Article 92(2).
If your policy is from an EU country, the Directive's Article 14 makes it give, in each member state, the cover required by that state's law, or the cover required by your home country's law when that is higher.
The difference that catches people out is between valid cover and full cover. A comprehensive policy at home may drop to third-party only abroad, or cover only a set number of days, or leave out breakdown. None of that is set by law. It is in your policy wording, so read it or ask before you travel.
What you must carry and produce
Carry your driving licence and proof of insurance on both sides of the border.
In the Republic. Under the Road Traffic Act 1961, section 69(1), a member of the Garda Síochána can demand your certificate of insurance. If you cannot produce it "then and there", you have "ten days after the day on which the production was demanded" to produce it in person at a Garda station that you name at the time. For the purposes of these rules, an international motor insurance card (a green card) counts as evidence of a certificate. This is set by the Mechanically Propelled Vehicles (International Circulation) Order 1992, article 8(2), as annotated in the revised Act (checked October 2026).
In Northern Ireland. Under the Road Traffic (Northern Ireland) Order 1981, Article 180 (checked October 2026), a constable can require you to produce your licence and certificate of insurance. If you cannot do it immediately, you have 7 days to bring them in person to the police station you named. If your insurer sent your certificate electronically, you can show it on a phone or other device, or hand over a legible printed copy.
We have not printed fines for failing to produce documents or for driving uninsured. Those belong in a guide that dates them properly, not in a summary.
If you are hiring instead
A hire car is a different set of questions: the rental company's insurance, the excess you carry, and whether you can take the car across the border at all. Start with our car hire excess insurance guide and our guide to renting a car in Ireland. Cross-border cover on a hire car is a named condition on the rental agreement, so do not assume it.