Driving in Bulgaria - Road Rules and Tips for Foreign Drivers

Bulgaria has become one of the most popular countries in south east Europe for road trips, sitting on the direct route between central Europe and Turkey, Greece and the Black Sea coast.

Since 2025 the rules have shifted in several important ways, including new average speed cameras on the motorway network and, from 1 January 2026, the switch to the euro as the official currency of Bulgaria.

This guide brings together the speed limits, toll rules, required documents and everyday habits that matter most, whether the car is collected at Sofia Airport or from a city office.

Traffic Rules and Right of Way

Traffic in Bulgaria keeps to the right, with overtaking on the left, which catches out visitors from countries with left hand traffic during the first hours after crossing the border. At junctions without signs, the vehicle approaching from the right normally has priority, while marked junctions follow whatever the signs indicate.

Vehicle headlights must stay on at all times, day and night, a rule that has applied for years and is checked closely by traffic police. A driver facing a stop sign must come to a complete halt, and vehicles already inside a roundabout always have priority over those about to enter it.

Pedestrians on a marked crossing always have the right of way, and failing to give way to them is treated as a serious offence by the police. Crossing busy boulevards on foot is common in Bulgarian towns, so it helps to slow down well before any crossing comes into view.

Documents and Mandatory Equipment on Board

Every driver needs a valid driving licence, a valid passport or identity card, the vehicle registration certificate and proof of third party liability insurance. When the car comes from a rental company these documents are provided with the vehicle, so it is worth checking that everything is in the folder before setting off.

A full checklist of documents to bring, including whether an international driving permit applies to a specific nationality, is covered in a separate guide on documents needed to rent a car in Bulgaria, alongside how third party liability insurance works for a rental vehicle.

Bulgarian law also requires every car to carry certain safety items on board:

• A warning triangle to place behind the vehicle after a breakdown or collision;
• A reflective safety vest for the driver to wear outside the car on any road;
• A first aid kit suitable for treating minor injuries;
• A fire extinguisher kept within reach inside the cabin or boot.

Speed Limits and Average Speed Cameras

Standard speed limits for a passenger car are 50 km/h in built up areas, 90 km/h outside them, 120 km/h on expressways and 140 km/h on motorways, among the highest limits found anywhere in the European Union.

From September 2025 a new system of average speed cameras, built into the toll network, began measuring how long a vehicle takes to cross a marked section of motorway or expressway.

A driver can be fined even if their speed was legal at both ends of the section, since the fine is based on the average across the whole stretch. The number of covered sections has grown quickly, expanding from around twenty to well over a hundred within months.

Fines for Speeding and Checking for Tickets

Fines rise steeply with the size of the violation. A small excess of ten kilometres an hour brings a modest penalty, while exceeding the limit by more than fifty kilometres an hour in a built up area carries a fine of several hundred euros together with a three month driving ban.

Since Bulgaria adopted the euro at the start of 2026, all fines are now issued in euros rather than leva, though official notices still show both figures for a transition period. Anyone unsure whether a fine has arrived by post can find out how to check for traffic tickets online in a dedicated guide.

Alcohol, Seatbelts and Mobile Phones

The legal blood alcohol limit for driving in Bulgaria is 0.5 per mille, and going over it brings a fine together with a suspension of the driving licence that grows longer the higher the reading. Well above this threshold the matter becomes a criminal offence rather than a simple traffic fine.

Seat belts are compulsory for every seat in the car, front and rear alike, and children below 150 centimetres in height must travel in an appropriate child car seat or booster rather than an adult belt alone.

Holding a mobile phone while driving is not permitted, and only a hands-free set is allowed for calls on the move. Traffic police increasingly target this offence in city centres and along motorway sections, with a fine issued on the spot.

The E-Vignette and Toll System

Any car up to 3.5 tonnes needs a valid e-vignette to use Bulgarian motorways and most first class roads. There is no paper sticker to display, since the vignette is linked electronically to the registration plate and checked automatically by roadside cameras.

Since Bulgaria adopted the euro, the e-vignette for a car is priced as follows:

• A one day vignette, introduced in February 2026, priced at 4.09 euros;
• A weekend vignette, covering Friday to Sunday, priced at 5.11 euros;
• A seven day vignette priced at 7.67 euros;
• A thirty day vignette priced at 15.34 euros;
• A three month vignette priced at 27.61 euros;
• An annual vignette, valid for a full year, priced at 49.60 euros.

Toll for Heavier Vehicles and Checking Online

Heavier vehicles over 3.5 tonnes do not use the vignette at all, paying a distance based toll instead through a separate satellite tracking system. Passenger car drivers never need this second system, and a closer look at how it operates for lorries and buses is available in a guide to the Bulgarian toll system.

Anyone who wants to confirm that a vignette is active before setting off can check the e-vignette online in a couple of minutes using the registration number and country of the vehicle.

Keeping a saved link to the checker on a phone is a simple habit worth adopting before a long drive across the country.

Winter Driving and Road Conditions

Road quality varies a good deal across the country. Motorways and first class roads are generally smooth and well kept, while smaller routes through the mountains can be narrow, poorly lit and without crash barriers on sharper bends.

Winter rated tyres are a legal requirement between 15 November and 1 March for every vehicle on the road, and driving on worn summer tyres during this period carries a fine. Full details on the tread depth rules and the exact winter tyre requirements are set out in a separate guide.

Mountain passes can close in heavy snow or demand snow chains at short notice, so checking the forecast before a winter journey is worthwhile. Fuel stations thin out on quieter mountain roads, making it wise to top up the tank before leaving the main routes.

Practical Tips and What to Do if Something Goes Wrong

Parking rules are strictly enforced in larger towns and cities. Yellow marked kerbs mean no parking at all, while blue zones allow paid parking for a limited time, and vehicles left illegally in either zone risk being towed away at the cost of the owner.

In the event of a breakdown or collision, the driver should place the warning triangle behind the car, put on the reflective vest and contact the police as well as the rental company straight away. A guide to roadside assistance in Bulgaria explains what help is available and how quickly it tends to arrive.

For anyone continuing the trip beyond Bulgaria, towards Greece, Serbia, Turkey or Romania, additional paperwork and rules apply, and the details are covered in a guide to driving a rental car abroad. The team at SpeedyCars can advise on the right documents when travellers rent a car in Bulgaria for the trip.