Driving Rules in Iceland for Tourists: Everything You Need to Know

Iceland Has Driving Rules That Will Surprise You

Most visitors to Iceland assume that driving here works roughly like driving in the rest of Europe or North America. Paved roads, familiar signs, standard rules. And for the most part, that is true — until it is not. Iceland has several driving rules and road behaviours that catch foreign drivers off guard, and the fines for violations are among the highest in Europe.

This guide covers every rule that matters for visitors, from headlight requirements to the specific Icelandic right-of-way conventions that confuse nearly everyone.

Headlights Must Be On at All Times

In Iceland, headlights must be on 24 hours a day, 365 days a year. This is not optional — it is a legal requirement, and police enforce it. This includes bright summer days when the sun does not set. The reason is visibility: even in summer, fog, rain, and road spray reduce visibility significantly, and oncoming drivers need to see you. Most modern vehicles sold in Iceland have automatic daytime running lights, but older rental cars may not. Check that your lights are on every time you start the vehicle. Fine for driving without headlights: approximately 15,000 ISK.

Speed Limits and Enforcement

Iceland's speed limits are lower than most visitors expect, and enforcement is aggressive:

• Urban areas: 50 km/h (30 km/h in many residential zones)
• Paved rural roads (including the Ring Road): 90 km/h
• Gravel roads: 80 km/h

Speed cameras (hraðamælar) are positioned throughout the country, including on remote stretches of the Ring Road where tourists assume they are unobserved. They are. Fines start at approximately 15,000 ISK for minor violations (1-5 km/h over) and escalate rapidly. At 20+ km/h over the limit, fines reach 100,000-150,000 ISK. At 50+ km/h over, the penalty includes a court summons and potential driving ban.

Rental companies are legally required to forward police speed camera notices to the credit card on file. You cannot avoid a fine by returning the rental car — it will follow you.

The Right-of-Way Rules That Confuse Everyone

Roundabouts: Inner Lane Has Priority

Roundabouts in Iceland follow a rule that is opposite to what many visitors expect: the vehicle in the inner lane has priority when exiting. In many countries, the outer lane exits first. In Iceland, a vehicle in the inner lane can exit at any point, and vehicles in the outer lane must yield. This causes confusion and near-misses daily at roundabouts in Reykjavík, particularly the busy Miklabraut/Kringlumýrarbraut interchange. Watch what Icelandic drivers do and follow their lead.

Single-Lane Bridges: First to Arrive Has Priority

The Ring Road has dozens of single-lane bridges, particularly on the South Coast and in the East Fjords. The rule is simple: the vehicle that arrives first has the right of way. If two vehicles arrive at the same time, the one that is closest to the bridge entrance goes first. There are no traffic lights or signs indicating who should go — it is based on arrival time and proximity.

In practice, this means you need to watch for oncoming vehicles as you approach any single-lane bridge and be prepared to stop and wait. Many tourists do not realize a bridge is single-lane until they are on it and see headlights coming toward them. Look for the signs: "Einbreið brú" means single-lane bridge.

Mountain Roads: Uphill Has Priority

On narrow mountain roads, the vehicle travelling uphill has the right of way. The downhill vehicle must reverse to a passing place. This makes physical sense — reversing uphill on gravel is dangerous — but surprises visitors who are not familiar with mountain driving conventions.

Alcohol Limits: Nearly Zero Tolerance

Iceland's legal blood alcohol limit for driving is 0.05%, which is lower than the US (0.08%) but standard for Europe. However, cultural enforcement is much stricter than the legal limit suggests. Random breathalyser checkpoints are common in Reykjavík, especially on weekend nights. Having any alcohol in your system — even well below the legal limit — will draw intense scrutiny. Penalties for DUI include immediate license confiscation, fines of 100,000+ ISK, and potential jail time for higher levels.

Seat Belts and Child Restraints

Seat belt use is mandatory for all passengers in all seats. Children under 150 cm tall must use an appropriate child restraint system (car seat or booster). Rental companies offer child seats for approximately 1,000-2,000 ISK per day, but they are often in limited supply during peak season — book one when you book the car, not at the pickup desk.

Off-Road Driving Is Illegal

This cannot be overstated: driving off marked roads and tracks is illegal in Iceland. The fine is substantial — typically 50,000-500,000 ISK depending on the damage caused — and in extreme cases, drivers have been charged with environmental destruction, which carries potential prison time. Iceland's fragile moss and vegetation can take decades to recover from a single set of tire tracks. Drone footage of off-road damage has been used to identify and prosecute offenders.

This applies to all vehicles, including 4WDs and Super Jeeps. The fact that you have a capable vehicle does not give you permission to leave the road. Stay on marked tracks at all times.

Phone Use While Driving

Using a handheld mobile phone while driving is illegal. Hands-free systems (Bluetooth, vehicle integration) are permitted. The fine for handheld phone use is approximately 15,000 ISK. Given the challenging road conditions in Iceland — narrow roads, sudden weather changes, animal crossings — keep your phone in a mount and use voice commands.

Winter Tire Requirements

From 1 November to 14 April, winter tires are mandatory on all vehicles. These can be studded tires (nagladekkja) or non-studded winter tires with the three-peak mountain snowflake (3PMSF) marking. All-season tires are technically legal if they carry the 3PMSF marking, but experienced Icelandic drivers strongly recommend dedicated winter tires. If you are renting between November and April, confirm that winter tires are fitted before you leave the lot.

Fuel — There Is No "Next Station"

This is not a rule, but it is critical advice that falls under basic driving safety: fuel stations in Iceland are sparse outside the capital area. On parts of the Ring Road, particularly the East Fjords and the stretch between Egilsstaðir and Akureyri, stations can be 150-200 km apart. On F-roads, there are no fuel stations at all. The rule every Icelandic driver follows: never pass a fuel station with less than half a tank. Top up every opportunity you get.

Emergency Situations

The emergency number in Iceland is 112. For road conditions, check road.is or call 1777 (Vegagerðin road information line). For weather warnings, check vedur.is. Download the 112 Iceland app before your trip — it allows you to check in with emergency services and send your GPS coordinates if needed.