Renting a car in Ireland opens up the country in a way buses and tours simply can’t. You’ll reach hidden beaches, pull over at clifftop viewpoints, and wander into villages that don’t appear on most itineraries. But the process comes with quirks — from mandatory insurance add-ons to navigating stone-walled lanes — that catch first-time visitors off guard.
Here’s what you actually need to know before you pick up the keys.
Insurance: What’s Required and What You Can Skip
Irish rental companies require Collision Damage Waiver (CDW) at minimum, usually included in your base rate. But CDW leaves you liable for the first $1,500 to $3,000 of damage — the excess. At the counter, you’ll be offered Super CDW or excess reduction insurance to eliminate that liability, often costing $20 to $40 per day.
You have three options: buy the rental company’s Super CDW at pickup, purchase a standalone policy online before you travel (companies like Insurance4CarHire cover Ireland for around $10 per day), or use a credit card that includes primary rental coverage. Check your card’s terms carefully — many U.S. cards exclude Ireland or cover only theft, not collision.
Windscreen, tire, and undercarriage damage are typically excluded from CDW. If you’re driving rural or coastal roads — and you should be — the standalone policy often makes the most sense.
Transmission, Fuel, and What Size Car You Actually Need
Manual transmission is standard in Ireland. Automatic cars cost 30 to 50 percent more and need to be booked weeks in advance, especially in summer. If you’ve never driven a manual, this isn’t the place to learn — rent the automatic and book early.
Most rentals run on diesel, not gasoline. The nozzles and pumps are clearly labeled, but it’s worth double-checking every time — misfueling is expensive. Rental companies operate on a full-to-full fuel policy: pick up the car with a full tank and return it full, or pay a premium to have the company refill it.
As for size, smaller is better. A compact or economy car handles Ireland’s narrow roads, tight village streets, and single-track boreens far better than an SUV. If you’re traveling with more than two large suitcases, consider a small estate (wagon) instead of upsizing to a larger sedan.
Driving on the Left and Other Road Realities
Driving on the left is the headline challenge, but it’s not the hardest part. Most drivers adjust within an hour. The real difficulty is the roads themselves: narrow, winding, and often bordered by stone walls or hedgerows with no shoulder. On rural routes in Kerry, Clare, Galway, and Donegal, you’ll regularly pull into passing places to let oncoming traffic through.
Roundabouts are everywhere, and you’ll enter them clockwise — yield to traffic from the right. In towns, street parking is pay-and-display; buy a ticket at the meter and leave it visible on your dashboard. Double yellow lines mean no parking, single yellow lines restrict parking during certain hours (check the sign).
Speed limits are posted in kilometers per hour: 50 km/h in towns, 80 km/h on regional roads, 100 km/h on national roads, and 120 km/h on motorways. Speed vans are common, especially on the M50 around Dublin.
Where to Pick Up and Drop Off
Most travelers pick up at Dublin or Shannon Airport. If your itinerary focuses on the west — Galway, Clare, Kerry — fly into Shannon and skip the drive across the country. If you’re starting in Dublin, consider spending your first day or two in the city without a car; parking is expensive and unnecessary for sightseeing in the capital.
One-way rentals between airports (Dublin to Shannon, or vice verса) usually incur a fee of $50 to $100, but the convenience is often worth it if your route is linear rather than a loop.
Rental desks at both airports are efficient but can have long queues in summer. If you land in the morning, factor in 30 to 45 minutes for pickup. Have your driver’s license, credit card, and reservation confirmation ready.
What to Check Before You Drive Off
Walk around the car with the rental agent and note every scratch, dent, and scuff on the condition report. Take photos or video on your phone, including close-ups of any existing damage and the odometer reading. Check that the spare tire, jack, and warning triangle are in the trunk.
Adjust your mirrors for left-side driving — your instinct will be off at first. Set your GPS or phone mount before you leave the lot, and remember that your navigation app should be set to kilometers, not miles.
Most importantly, don’t let the rental agent rush you. Take your time, ask questions, and make sure you understand the fuel type, the insurance coverage, and the after-hours drop-off procedure if you’re returning the car outside business hours.
Final Tips
Download offline maps for your route — cell service is patchy in rural areas. Keep coins for parking meters and toll booths (though most tolls can be paid by card). If you’re staying in small villages or heritage towns, ask your accommodation about parking before you arrive; some B&Bs and guesthouses have limited or no on-site parking.
And give yourself more time than you think you need. Ireland’s beauty is in the stops you didn’t plan — the pier where locals are hauling in lobster pots, the pub with music drifting through the door, the pull-off where the Atlantic crashes against black rock. A car gives you the freedom to take those detours.
Want more practical tips and hidden corners of Ireland delivered to your inbox? Subscribe to The Ultimate Ireland Travel Guide newsletter — one short story a week, straight from the road.