Renting a Car in Ireland: Everything You Need to Know

The road west out of Killarney narrows before you expect it to. The N71 drops to a single lane through the Ring of Kerry, banked by stone walls and hedgerow, with passing places where you and the oncoming car do a slow negotiation and wave each other through. There's no bus route that does this. No train line. The whole west coast of Ireland — from the Cliffs of Moher north through Connemara to Donegal — is, practically speaking, only reachable with a car.

Dublin Airport has more than a dozen suppliers and the rental market is genuinely competitive. Two things make it distinct from a typical US booking: the CDW excess can run significantly higher than American travellers are used to, and the fleet is predominantly manual transmission. Both are manageable with a few minutes of preparation before you book.

Do you need a car in Ireland?

Outside Dublin, a car isn't a convenience — it's the only way to reach the places worth going. The Ring of Kerry, the Cliffs of Moher, Connemara, the Dingle Peninsula, the Wild Atlantic Way from Cork to Donegal — none of these work without one. Public transport between Irish cities is adequate; between scenic stops, it's essentially non-existent.

The one exception is a pure Dublin city stay. The city's bus and rail network covers the centre well, and parking in Dublin is expensive and slow to navigate. If you're spending two or more days in Dublin before heading west or south, pick up the car on the day you leave the city rather than paying for parking you won't use.

What driving in Ireland is actually like

Driving on the left

Ireland drives on the left. For travellers from the US, Canada, or continental Europe, this is the main adjustment — and it takes genuine attention, not just awareness. Roundabouts feel backwards. The natural instinct on a quiet stretch of road is to drift toward the centre line, which in Ireland puts you into oncoming traffic. Most travellers find the adjustment comes within a few hours rather than days, but day one on the Ring of Kerry is not the moment to rush it.

Speed limits throughout the Republic are in kilometres per hour: 120 on motorways, 100 on national roads, 80 on local and regional roads, and 50 in urban areas. When you cross into Northern Ireland the signs switch to miles per hour — 70 on dual carriageways, 60 on single carriageways, 30 in built-up areas. That switchback catches drivers who aren't expecting it.

A valid driving licence is required in the vehicle at all times. US licence holders can drive in Ireland for up to 12 months as visitors without any additional permit. An International Driving Permit isn't required for English-language licences, though it can serve as a useful backup alongside a non-English licence.

The M50

The M50 is Dublin's orbital motorway, and almost every traveller leaving the airport heading south or west will use it. There are no toll booths — cameras photograph your plate as you pass the gantry between Junction 6 and Junction 7 at motorway speed. There's no signal that you've been charged and nothing to pay at the road.

All major rental suppliers auto-register their fleets with Ireland's eFlow system. The toll goes to your card a few days after the rental ends, alongside a handling fee that varies by supplier. You don't need to do anything at the gantry — but check your supplier's terms to understand whether an admin fee is added on top of the eFlow toll itself.

Choosing your rental car

Manual or automatic?

Ireland's rental fleet is predominantly manual transmission. If you learned to drive in the US or Canada, you're arriving into a country where you'll be steering from the right side of the car, driving on the left, navigating unfamiliar road signs, and — unless you've booked an automatic — working a clutch and gear stick at the same time. Most travellers find that combining all of those through Dublin traffic or on the Ring of Kerry on day one is a step too far.

Automatics are available at Dublin Airport across most major suppliers, but the daily rate runs noticeably higher than the manual equivalent, and in July and August supply runs genuinely short. If you're comfortable with manual, it's the right choice — the roads suit it, prices are lower, and availability isn't a concern.

What size car?

A compact or economy car handles Ireland's motorways and national roads without any issue. On the popular tourist routes — Ring of Kerry, Dingle Peninsula, Connemara — the roads are narrow and passing places are frequent. A full-size SUV is harder to manoeuvre where a smaller footprint is genuinely useful. If you're travelling with significant luggage or four or more passengers, a compact SUV is the practical upper limit for most itineraries.

How Ireland rental insurance works

CDW is included in every Irish rental by law — but it comes with a non-waivable excess that runs higher than most US markets. That excess sits on your card as a hold from pickup until the car is checked in clean. Everything else on the table below is optional, and whether you need it depends on what your credit card already covers.

The CDW excess — why it matters in Ireland

The excess is the amount you're liable for if the car comes back damaged, even if you have CDW. In Ireland that figure is non-waivable — it sits on your credit card as a hold from the moment you pick up the car, and it clears when the vehicle is checked in without damage. For the duration of the rental that amount is unavailable on your card, which matters if you're travelling on a single card with a tight limit. The specific amount depends on vehicle class; compact vehicles sit at the lower end, larger and premium vehicles at the higher end.

Most travel credit cards that include rental car coverage — Chase Sapphire and Amex in the US, similar premium cards elsewhere — provide CDW as secondary insurance, reimbursing you after a damage claim is settled with the supplier. What they typically don't cover are Ireland-specific exclusions: wheels, tyres, and glass. Check your specific card's policy for Ireland before assuming the excess is fully handled.

Super Cover and Comfort Pack

Super Cover (SC) eliminates the CDW and Theft Protection excess, bringing your liability for standard damage to zero — but it doesn't cover wheels, tyres, glass, or keys. On Ireland's narrow country lanes, with stone walls close on both sides, those are the damage categories most likely to be relevant.

Comfort Pack (CP) covers that gap. It only works alongside Super Cover — on its own it's meaningless, and Super Cover without it leaves wheels and glass exposed. Together they cover everything that matters on Irish roads.

The other add-ons

Theft Protection carries its own excess separately from CDW — check whether it's included in your base rate before arriving at the counter. Super Cover eliminates the TP excess where it applies. Driver & Baggage Protection covers personal accident and belongings; if you have travel insurance through your credit card or a standalone policy, check for overlap before adding it at the counter.

Dublin Airport: what to expect at pickup

Dublin Airport is Ireland's primary rental hub, with 13 suppliers serving both terminals. Most major suppliers — Hertz, Avis, Sixt, Budget, Enterprise — operate from within the arrivals halls. A smaller number of budget operators run off-site with courtesy shuttle buses. Easirent, which carries the lowest DiscoverCars score at Dublin (6.2 across 1,399 reviews), requires a call on arrival to arrange pickup from outside the terminal. Check your booking confirmation before landing to confirm whether you're in-terminal or off-site.

Shannon Airport is the natural entry point for a western Ireland circuit. Flying into Shannon and driving north toward Galway, the Cliffs of Moher, and Connemara adds meaningful time back compared to picking up in Dublin and driving west. Cork Airport covers the south — Ring of Kerry, Kinsale, the Beara Peninsula — with a short drive straight onto the routes worth doing.

One-way rentals between airports are available and well-supplied. Dublin to Shannon and Dublin to Cork are the most commonly booked combinations. Drop-off fees apply and vary by supplier.

Driving into Northern Ireland

Northern Ireland is a separate jurisdiction — part of the United Kingdom, not the Republic. The border is open and unmarked; you'll cross it without stopping, the only signal being a speed limit sign switching from kilometres to miles per hour. What changes is your rental coverage.

Whether a Republic-issued rental covers Northern Ireland, and what it costs, depends entirely on your supplier. Hertz and Enterprise include Northern Ireland in their standard Republic of Ireland policies at no extra charge. Europcar permits the crossing but requires advance notification and charges a flat fee per rental. Some suppliers restrict crossing for certain vehicle categories entirely. The market is not consistent.

The rule that applies regardless of which supplier you've booked: declare your plans at pickup. GPS monitoring is standard across the Irish rental market. Crossing into Northern Ireland without disclosing your intention doesn't save the fee — it voids your coverage for any incident that occurs while you're north of the border.

Frequently asked questions

Author: Hicham

I built RentalVerdict to give travellers the research behind the rental decision — so the only thing left is the trip itself.

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