What Documents Do You Need to Rent a Car in Ireland?
The desk agent at Dublin Airport handed the keys back to a man from Toronto last July and said the words nobody wants to hear after a ten-hour flight: "I'm sorry, we can't release the vehicle."
The reason was a digital driver's licence. The man had left his physical card at home, figuring the app on his phone was enough. It isn't. Not in Ireland. He spent the next four hours — and €180 in taxi fares — retrieving his physical licence from a hotel safe in Temple Bar.
This article tells you exactly what to bring, what not to bring, and how booking with the right company changes what happens at the desk.

The Non-Negotiables: Licence, Passport, and Credit Card
You need three things. Not two. Not four. Three.
A valid full driver's licence. Not a learner permit. Not a provisional. A full licence held for at least two years, though some companies require three or even five. The licence must be physical — plastic card or paper counterpart. Digital licences on phones are not accepted.
If your licence is not in English, you need an International Driving Permit (IDP) alongside it. This is not optional. You must carry both your original licence and the IDP. The IDP is valid for one year and must be obtained in your home country before you travel.
A valid passport or national ID card. For non-EU citizens, this means a passport. The name on the passport must match the name on the driver's licence and the booking.
A credit card in the main driver's name. Debit cards are not accepted by most Irish rental companies. The credit card is used for the security hold — typically €1,500 to €3,000. The card must be embossed and must have sufficient available credit. Prepaid cards are generally rejected. The name on the card must match the name on the licence and the booking.
Here is where booking through My Irish Cousin changes the experience. When you request a quote from us, we do not ask for your licence details upfront. We ask one question: is the driver 25 or older? That is the only age restriction we have. We do not rent to drivers under 25, but we have no upper age limit whatsoever. We do not place a hold on your credit card. And excess insurance is already included in your rate. The man from Toronto? His documents would still have been wrong. But at least he would not have been surprised by a €2,000 deposit hold on top of the refusal.

International Driving Permits: Who Needs One and How to Get It
An International Driving Permit is required if your domestic driver's licence is not printed in English. This includes licences from most European countries outside Ireland and the UK, as well as licences from Japan, South Korea, and many Middle Eastern and African countries.
For North American visitors: if your licence is issued in English — which all US and Canadian licences are — you do not need an IDP. I mention this because there is a persistent myth that Americans need an IDP to drive in Ireland. You don't. I've explained the full breakdown in Driving Licence Requirements for Car Rental in Ireland.
If you do need an IDP, apply through your national automobile association before you leave. In the United States, this is the AAA. In Canada, it's CAA. The process takes a few days to a few weeks. The permit costs around $20 USD and is valid for twelve months. You cannot obtain an IDP once you are in Ireland.

Age Requirements and Why the Upper Limit Matters More Than You Think
The minimum age to rent a car in Ireland is 21. But "minimum" does not mean "standard." Most rental companies apply a young driver surcharge to anyone under 25, and some refuse to rent to drivers under 23 altogether. The surcharge is typically €30 to €40 per day, and it is not waivable.
If you are between 21 and 24, you will likely be limited to smaller vehicle categories. Some companies also require drivers under 25 to have held their full licence for at least three years.
The upper age limit is where things get genuinely unfair. Most major rental companies impose a maximum age of 75 or 79. Others require a doctor's certificate for drivers over 70. If you are over 70, the computer system does not care how long you have been driving. It will reject your booking on age alone.
My Irish Cousin does not impose an upper age limit. We have placed cars with drivers in their eighties and nineties. What matters is a valid licence and a clean record. If you are a senior traveller planning a roots trip and you have been told you are "too old" by the major brands, request a quote here. We rent cars to drivers of any age.
What About Additional Drivers?
Adding a second driver is straightforward, but not automatic. The additional driver must present the same documentation: full physical licence, passport or ID, and sometimes a credit card in their own name. They must be present at the rental desk when the car is collected.
The cost varies. Some companies include one additional driver free. Others charge €10 to €15 per day. If having a second driver matters for your trip — and for long drives on the Wild Atlantic Way, it should — confirm the policy before you book.
The age restrictions for additional drivers are the same as for the main driver. A 22-year-old cannot be an additional driver on a vehicle the company refuses to rent to under-25s.
For visitors planning a long route with multiple drivers sharing the wheel, Celtic Vacations build self-drive itineraries where the car and accommodation are coordinated around realistic daily driving distances. The route is still yours to drive. The planning isn't.

The Deposit Trap and How to Avoid It
Here is the part that catches most North American travellers off guard: even with perfect documents, you still need to survive the credit card hold.
When you rent a car in Ireland, the company places a hold on your credit card for the insurance excess — typically €1,500 to €3,000. This is not a charge. It is a block. But it reduces your available credit for the duration of your trip. If you are travelling on a card with a modest limit, the hold can derail your budget.
The hold is released when you return the car undamaged, but it can take several days — sometimes up to two weeks — to clear depending on your bank.
When you book through My Irish Cousin, there is no deposit. We do not place a hold on your card. You present your licence, passport, and credit card for identification. You sign the agreement. You take the keys. Your credit limit stays intact. This is not a promotional offer. It is how we operate because a €2,000 hold on day one of a two-week trip is not a good way to start a holiday.
Digital Documents, Photocopies, and Common Mistakes
Here is a list of things that will not work at an Irish rental desk:
- A photocopy of your licence. The desk needs the original.
- A photograph of your licence on your phone.
- A digital driver's licence app. Not accepted by any Irish rental company.
- An expired licence, even by one day. The system will reject it.
- A licence in someone else's name, even your spouse's. The main driver must be the named renter.
- A credit card with insufficient available credit. The hold will be declined.
- A debit card when the company specifies credit card only.
The most common mistake is assuming what works at home will work in Ireland. If your home rental company accepts digital licences or debit cards, that is a local policy. Irish rental companies operate under different insurance and regulatory frameworks.
Another frequent error is booking the car in one name and turning up with a licence in another. This happens with couples who share a credit card account. The booking must be in the name of the person whose licence and credit card are being presented. If you both want to drive, book in one name and add the other as an additional driver.
When you request a quote through My Irish Cousin, you are not dealing with a faceless booking engine. You are dealing with the rental company itself. We do not send generic checklists because we do not need to. We tell you the three things that matter: bring a physical licence, bring a passport, and bring a credit card in the same name. If you can manage those three things, the rest is handled.

Booking Confirmation and Proof of Insurance
Your booking confirmation is not strictly required at the rental desk, but you should have it. If there is any discrepancy between what you booked and what the desk agent sees, the confirmation is your evidence.
If you have purchased standalone excess insurance from a third party, bring the policy document. The rental desk will still place a hold on your credit card for the full excess, but the standalone policy means you can claim that back if damage occurs. Without proof, the desk agent may pressure you into buying their own insurance.
The same applies if your credit card offers rental car insurance as a benefit. Bring the benefit terms.
With My Irish Cousin, excess insurance is included as standard — the most comprehensive insurance in Ireland. You do not need a separate policy. You do not need to negotiate with the desk agent. It is built into your rate, and we already know. The only document you need at the desk is your booking reference.
The Bottom Line
The document requirements for renting a car in Ireland are not complicated, but they are rigid. A physical driver's licence, a passport, and a credit card in the same name. An International Driving Permit if your licence is not in English. And patience to present everything in the order the desk agent asks.
The man from Toronto got his car eventually. But he lost half a day, spent €180 on taxis, and started his holiday stressed and exhausted. All because he assumed a digital licence would be enough. It wasn't.
If you book through us, you still need the same documents. The rules do not change. But what changes is what happens at the desk. There is no deposit hold waiting to swallow your credit limit. There is no upper age limit judging you by your birth year. And there is no hard sell on insurance you already have.
If you want the car ready when you land, request a quote here and we will walk you through the exact documents you need for your specific situation.

