Rules of the road
Driving in Ireland
Every value below links to the official source it was checked against, with the date it was checked. What is not verified yet says so.
Quick answers about driving in Ireland
- Which side of the road do you drive on in Ireland?
- In Ireland you drive on the left.
- How old do you have to be to drive in Ireland?
- You must be at least 17 years old to drive in Ireland. Category B. A learner permit still requires a fully licensed driver of at least two years' standing in the car with you.
- What is the speed limit in Ireland?
- 120 km/h on motorways, 100 km/h on dual carriageways, 80 km/h on country roads and 50 km/h in towns and cities. Those are the national default limits, which apply where no sign says otherwise.
- What is the drink driving limit in Ireland?
- The legal limit in Ireland is 50 mg/100ml. Much stricter than Great Britain's 80 — a pint can put you over here. Drivers who passed their test recently are held to 20 mg/100ml.
Which side of the road
Speed limits
Speed limit on a dual carriageway
100 km/h
This is Ireland's national road limit — the green-signed N roads, dual carriageway or not. A cut to 80 on national secondary roads is in the Road Traffic Act 2024 but has not started, so 100 still applies.
Checked 16 Aug 2026 · official source
Speed limit on country roads
80 km/h
Regional (R-numbered) roads. Small local (L-numbered) roads are 60, not 80, and have been since February 2025. Look for the white circle with five diagonal black lines and a "Go Mall / Slow" plate — that sign means 60.
Checked 16 Aug 2026 · official source
Speed limit in towns and cities
50 km/h
Councils are cutting town centres and housing estates to 30, one area at a time, with a target of March 2027. Read the signs rather than assuming 50.
Checked 16 Aug 2026 · official source
Speed limit when towing a trailer or caravan
- Motorway — 80 km/h
- Dual carriageway — 80 km/h
- Country roads — 80 km/h
Towing a trailer or caravan caps you at 80 wherever the ordinary limit is higher, the motorway included.
Checked 16 Aug 2026 · official source
Alcohol
How much alcohol you may have in your blood
50 mg/100ml
Much stricter than Great Britain's 80 — a pint can put you over here.
Checked 6 Aug 2026 · official source
Alcohol limit for drivers who passed their test recently
20 mg/100ml
Learners and drivers in their first two years — effectively zero.
Checked 6 Aug 2026 · official source
Your licence and age
Youngest age you may drive
17 years
Category B. A learner permit still requires a fully licensed driver of at least two years' standing in the car with you.
Checked 16 Aug 2026 · official source
Looking to rent a car? The minimum age to drive is 17, but most car rental agencies have their own minimum rental age. Remember to check with your car rental agency before you book. We earn a commission if you book through this link, at no extra cost to you. How we make money.
Whether you need an International Driving Permit
Not required
A valid licence in English or Latin script is enough for visits. Licences in other scripts should be carried with an International Driving Permit.
Checked 6 Aug 2026 · official source
How long you may drive on your own licence
12 months
As a visitor, on your own country's licence.
Checked 6 Aug 2026 · official source
What you must carry in the car
What you must carry in the car
Nothing — no equipment is legally required
Nothing is legally required. Asked directly whether anything must be carried, the Road Safety Authority answers no, then lists what it advises instead.
Checked 20 Aug 2026 · official source
What you should carry, but do not have to
- Warning triangle
- First aid kit
- Fire extinguisher
- Spare bulbs
Advised by the Road Safety Authority, not required by law.
Checked 20 Aug 2026 · official source
Phones at the wheel
Holding a phone while driving
Not allowed
Court fines can reach 2,000 euros.
Checked 6 Aug 2026 · official source
Seatbelts and children
Height below which a child needs a child seat
150 cm
Or under 36 kg. Licensed taxis are exempt.
Checked 6 Aug 2026 · official source
Motorbikes and scooters
Helmets on a motorbike or scooter
Required for rider and passenger
The regulation says the driver and the passenger of a motorcycle shall each wear a crash helmet in a public place. Riding without one, or carrying a passenger without one, is an 80 euro fixed charge.
Checked 2 Sep 2026 · official source
Largest motorbike or scooter you may ride on a car licence
None — you need a motorcycle licence
A car (category B) licence covers no moped or motorcycle. The RSA says a learner permit is required for category AM even if you hold a full licence in another category such as car, van or truck. One exception, stated on the RSA's licence categories page: an Irish B licence issued before 21 October 2006 carries AM, as long as it has not been expired for more than 10 years. The RSA does not say whether foreign B licences get any moped allowance.
Checked 2 Sep 2026 · official source
Youngest age you may ride the smallest class of scooter
16 years
Category AM: mopeds and light quadricycles. A1 (up to 125 cc) is also 16.
Checked 2 Sep 2026 · official source
What a rider must wear or carry
Nothing beyond a helmet
Only the helmet is law. The RSA says it recommends that a pillion passenger wears a motorcycle jacket, trousers, gloves and boots, and the Rules of the Road use "should" for all rider clothing and reflective jackets.
Checked 2 Sep 2026 · official source
Smallest motorbike allowed on the motorway
- Engine at least 50 cc
- Top speed at least 50 km/h
Framed by vehicle rather than class. The Rules of the Road list what must not enter a motorway: vehicles with an engine capacity of 50 cc or less, so exactly 50 cc is still barred and a machine must be bigger than that; and vehicles incapable of a speed of at least 50 km/h, so being able to reach 50 is enough. The book says "capable of a speed", which is recorded here on the design speed axis. Riders without a full licence for their category are barred too, and a category AM licence never allows motorways.
Checked 2 Sep 2026 · official source
Headlights on a motorbike in daytime
Not required
No law requires a headlight in daylight. The RSA says it is advisable to use dipped headlights at all times. Lights are needed at night and when visibility is seriously reduced.
Checked 2 Sep 2026 · official source
Tolls and city charges
How you pay for motorways
- Toll booths
- Electronic tolls with no barriers
Most tolls are barriers taking cards or cash. The big exception is Dublin's M50: no barriers, cameras only — pay online or at a Payzone shop by 8pm the NEXT day, or penalties go to the rental company. Rental cars often carry a tag; ask when you collect the car.
Checked 6 Aug 2026 · official source
Fines
Typical fines
- Minor speeding — fine from 160 EUR, 3 points (The fixed charge notice. It becomes 240 euro if unpaid after 28 days, and 320 euro plus a court date after 56 days.)
Checked 16 Aug 2026 · official source
More questions about driving in Ireland
- What do you have to carry in your car in Ireland?
- Nothing. Ireland requires no equipment by law.
- Do you need an International Driving Permit for Ireland?
- Not required. A valid licence in English or Latin script is enough for visits. Licences in other scripts should be carried with an International Driving Permit.
- Can you use your phone while driving in Ireland?
- No. Holding a phone while driving is against the law in Ireland. Hands-free: allowed. Court fines can reach 2,000 euros.
- Can you ride a scooter or small motorbike on a car licence in Ireland?
- No. You need a motorcycle licence.
Each answer comes from the rules above, where you can also see the official source and the date it was checked.
26 rules not yet verified for Ireland
These rules exist, but no value has been checked against an official source yet. Missing beats wrong.
- Which side you overtake on
- Speed limit in living and residential zones
- Speed limit in rain or snow
- Speed limit for drivers who passed their test recently
- Alcohol limit for professional drivers
- When you must switch your headlights on
- Headlights in tunnels
- Turning at a red light
- Who has priority at a roundabout
- Priority to traffic coming from the right
- Age below which a child needs a child seat
- Youngest age a child may sit in the front
- What the lines and painted kerbs mean
- How you pay to park
- Parking on the pavement
- Parking facing against the traffic
- How far you must park from a junction or crossing
- What happens if you park wrongly
- Winter tyres
- When winter tyre rules apply
- Snow chains
- Riding between lanes of slow traffic
- Low-emission zones
- Congestion charges
- Emergency number
- Whether police can fine you on the spot