What you need to rent a car in Ireland

To rent a car in Ireland, you must be at least 21 years old (some companies require 25), hold a valid driving licence that you've had for at least one year, and have a credit card in your own name for the deposit. Your driving licence must be in English or accompanied by an International Driving Permit if it's issued outside the UK or EU. Most rental companies will also ask for proof of address — a utility bill or bank statement dated within the last three months works for this.

The rental agreement itself is straightforward: you collect the car at your chosen location (airport, city centre, or train station), inspect it for damage, and sign the contract. You return it to the same location or a different one if you've booked a one-way rental. The entire process usually takes 15 to 30 minutes at the counter, though booking online in advance speeds this up considerably.

Key Takeaways

  • You need a valid driving licence held for at least one year, a credit card for the deposit, and proof of address; a UK or EU licence is accepted without an International Driving Permit.
  • Rental prices in Ireland vary widely by company, car type, and season — summer and bank holidays cost significantly more than winter, and airport locations charge more than city centre branches.
  • Insurance is not included in the base rental price; you can use your own car insurance's rental coverage, buy the company's Collision Damage Waiver, or purchase third-party coverage separately.
  • Petrol stations in Ireland are less common than in the UK, and many close early or on Sundays, so plan refuelling stops and return the car with a full tank to avoid inflated fuel charges.
  • Driving in Ireland means staying on the left, using kilometres not miles, and understanding that many rural roads are narrow — check your rental's size before booking if you plan remote areas.

Where to rent and what the costs actually are

The major rental companies operating in Ireland are Hertz, Avis, Budget, Enterprise, and Europcar, plus Irish-based firms like Thrifty Ireland and Dan Dooley. Airport locations (Dublin, Cork, Shannon, Belfast) are the most convenient but charge 15 to 25 percent more than city centre branches. If you're flying into Dublin and don't need the car when ready, collecting it from the city centre the next day can save €30 to €60 on a week-long rental.

Daily rates vary by season and car type. A compact manual car (Ford Fiesta or similar) costs roughly €25 to €40 per day in winter, €50 to €80 in summer, and €80 to €120 during peak weeks like Easter or August bank holidays. Automatic cars cost 30 to 50 percent more. Weekly rentals usually offer a discount of 10 to 20 percent compared to daily rates, so a seven-day rental is often cheaper per day than a three-day one. Always compare the total cost including insurance, fuel, and any fees before booking — the headline price rarely reflects what you'll actually pay.

Insurance and damage liability

The rental company's base price does not include insurance. You have three options: use your own car insurance's rental car coverage (if it extends to Ireland), buy the company's Collision Damage Waiver (CDW), or purchase third-party coverage from a broker like Rentalcover or Insurance4carhire. Check your own policy first — many UK home or car insurance policies include rental car cover, which can save you €10 to €20 per day.

If you buy the company's CDW, you'll typically pay €12 to €25 per day depending on the car size. This reduces your liability if the car is damaged or stolen, but you'll still be responsible for a "excess" (usually €500 to €1,500) if there's a claim. Some companies offer excess reduction for an extra €5 to €10 per day, which lowers your excess to €0 to €250. Read the fine print carefully — CDW often excludes damage to the windscreen, tyres, undercarriage, and roof, and it may not cover theft if keys were left in the car or doors unlocked.

Fuel, tolls, and other charges you'll encounter

Ireland has far fewer petrol stations than the UK, and many close by 7 p.m. or don't open on Sundays. Plan your refuelling stops carefully, especially if you're driving west or to rural areas. Most rental companies offer a "full-to-full" fuel option: you collect the car with a full tank and return it empty, paying only for the fuel you use at the company's rate (usually 5 to 15 percent more than a supermarket pump). Alternatively, you can prepay for a full tank upfront and return it empty — this locks in the price but you lose money if you return with fuel remaining.

Ireland has electronic tolls on major motorways (M4, M6, M7, M8, M9, M11). Most rental companies charge a €2 to €3 processing fee per toll, then bill your credit card for the toll itself. Some companies include a toll tag in the rental; others require you to pay online within days of travel. Check your rental agreement for the exact process. Parking in Dublin city centre costs €2 to €4 per hour; outside the centre it's usually free or €1 per hour. Clamping is common for illegal parking, and removal costs €130 to €160.

Driving rules and road conditions in Ireland

Ireland drives on the left, uses kilometres per hour (not miles), and has speed limits of 50 km/h in towns, 80 km/h on regional roads, 100 km/h on national roads, and 120 km/h on motorways. Seatbelts are mandatory, and using a mobile phone while driving is illegal. Drink-drive limits are strict: 50 mg of alcohol per 100 ml of blood (lower than England's 80 mg), and random breath tests are common.

Many Irish roads, especially in rural areas, are narrow, winding, and poorly lit at night. Hedgerows can obscure oncoming traffic. If you're unfamiliar with driving on the left or in tight spaces, book a smaller car and avoid night driving on minor roads. Petrol is sold by the litre; a litre costs roughly €1.30 to €1.60 depending on location and fuel type. Diesel is usually 5 to 10 pence cheaper per litre. Most rental cars are diesel, which is more economical on longer journeys.

One-way rentals and drop-off locations

Renting a car in one city and returning it in another (for example, collecting in Dublin and dropping off in Cork) is possible but costs more — typically €30 to €80 extra depending on distance. The further the drop-off, the higher the fee. Some companies waive the one-way fee during quiet periods (November to February) or for longer rentals (seven days or more), so it's worth asking.

Not all locations are open 24 hours. Airport branches usually open from 6 a.m. to midnight; city centre branches typically 8 a.m. to 6 p.m. Monday to Friday, with shorter weekend hours. If you're arriving outside these times, book a late-night or early-morning collection in advance — some companies charge an extra €15 to €30 for out-of-hours service. Check the exact opening hours of your chosen location before finalising your booking.

Booking online versus at the counter

Booking online in advance is almost always cheaper than walking up to the counter. Online rates are typically 20 to 40 percent lower because companies use dynamic pricing and offer web-exclusive discounts. You'll also avoid the pressure to upgrade or buy additional services at the desk. Use comparison sites like Kayak, Rentalcars, or Costco Travel (if you're a member) to see rates across multiple companies, but always check the company's own website too — sometimes their direct rate beats the aggregator.

When you book, confirm exactly what's included: fuel policy, insurance, tolls, and any mandatory fees. Print or screenshot your confirmation and bring it with you. If the counter staff try to charge you for something not listed in your confirmation, you have proof of what you agreed to. Cancellation policies vary — free cancellation is common up to 24 or 48 hours before collection, but some deals are non-refundable, so read the terms before paying.

Frequently Asked Questions

Do I need an International Driving Permit if I have a UK licence?

No. A UK driving licence is accepted in Ireland without an International Driving Permit. If your licence is from outside the UK or EU, you'll need an International Driving Permit alongside your national licence. Both must be valid and in your name.

What happens if I damage the car and have CDW?

You report the damage to the rental company when ready and provide photos and a written description. If the damage is within the CDW terms (not excluded like windscreen or tyres), the company covers the repair cost minus your excess. You'll need to pay the excess upfront or have it charged to your credit card, then claim it back from your own insurance if applicable.

Can I drive a rental car across the border into Northern Ireland?

Yes, most companies allow it, but you must inform them when you book. Your rental agreement and insurance extend to Northern Ireland. Some companies charge a small fee (€5 to €15) for cross-border travel. Check your specific rental agreement, as a few smaller companies restrict it.

What's the best time of year to rent a car in Ireland?

Winter (November to February) offers the lowest rates and fewer tourists, but days are short and weather is unpredictable. Spring (March to May) and autumn (September to October) balance reasonable prices with better weather and daylight. Summer (June to August) is peak season with the highest prices and busiest roads.

Do I need to return the car with a full tank?

Yes, unless you've prepaid for fuel. Most companies charge a significant markup (€1.50 to €2.00 per litre) if you return the car without a full tank. Plan your final refuelling stop before returning to the rental location, and allow time for it — the last petrol station before an airport or city centre location can be several kilometres away.