Does EU Roaming Work in Montenegro? What Changed in 2026 and What Didn't

Short answer: no, not by default. Montenegro isn’t part of the European Union, so the EU’s “roam like at home” rules don’t apply there. Unless your operator has chosen to include Montenegro in your plan, using your EU SIM there is charged as non-EU roaming — and data is where bills climb fastest.

That’s still true in autumn 2026, despite what you may have read. The EU has started negotiating free roaming with Montenegro and the rest of the Western Balkans, but as of September 2026 nothing is in force, and there’s no fixed date (Travel and Tour World, 13 September 2026).

Why it’s confusing

Several true things point in different directions:

• Montenegro uses the euro. It isn’t in the EU or the eurozone; it adopted the euro on its own. The currency tells you nothing about roaming.
• The EU is negotiating free roaming with the Western Balkans. The EU Council authorised the talks on 4 June 2026, covering Montenegro, Albania, Serbia, North Macedonia, Bosnia and Herzegovina and Kosovo (New Union Post, 4 June 2026). Authorisation to negotiate isn’t the same as an agreement in force.
• The Western Balkans have their own free-roaming zone since July 2021. It covers SIMs from those six countries travelling among themselves. It doesn’t make an EU SIM free in Montenegro.
• Some articles announced the end of roaming “from June 2026”. That date didn’t happen. As of September 2026, no Western Balkans country is in the EU roaming area.

There is also a voluntary arrangement between some EU and Western Balkans operators aiming for at least one roaming product below €14 per GB in 2026. It’s voluntary, it applies only to participating operators, and it isn’t a general price cap.

What it means for you

It depends entirely on your operator and your plan:

• Some EU operators include Montenegro in their roaming allowance, voluntarily. If yours does, you’re covered.
• Many place it in a non-EU zone, with its own prices per MB or a daily pass.
• If you don’t check, you find out from the bill. Phones keep using data in the background — photo backups, app updates, maps — and at non-EU rates that adds up quickly.

Before you travel, look up which roaming zone your operator puts Montenegro in. If you can’t find it, assume you’ll be charged.

Your three options

1. Your own plan, if your operator includes Montenegro or offers a pass at a price you’re happy with.
2. A local SIM, bought on arrival. Cheap, but it means a new number, a shop visit and swapping cards.
3. A travel eSIM, installed at home before you leave. You keep your own number for calls and WhatsApp, and the data runs on the eSIM at a fixed price, with nothing to swap.

If you’re also visiting Albania, Bosnia, Serbia or North Macedonia, the same applies: none of them is in the EU roaming area. Watch the borders too — near a frontier your phone can latch onto a network in the next country, which is exactly how travellers in Corfu end up billed as roaming in Albania.

Before you fly

1. Check your operator’s zone for Montenegro.
2. If you’re using a travel eSIM, install it at home, on Wi-Fi. If the QR code arrives on the same phone, install it without scanning anything.
3. Turn off data roaming on your home line before you land, so it can’t run up charges in the background.

When you land

1. Select the travel eSIM as your data line.
2. Turn on data roaming for that line. It’s the most common reason a travel eSIM “has no internet”. Full steps in why your eSIM has no internet even with roaming on.
3. Keep your home line on for calls and SMS only, if you want to stay reachable on your number.

FAQ

Is Montenegro included in EU roaming? No. As of September 2026, EU “roam like at home” doesn’t apply in Montenegro. Free roaming is being negotiated, with no date set.

Montenegro uses the euro — isn’t it in the EU? No. Montenegro adopted the euro unilaterally. It’s an EU candidate country, not a member, and the currency has no effect on roaming.

When will EU free roaming reach Montenegro? Nobody can give you a date. The EU authorised negotiations on 4 June 2026, and each country needs its own agreement. Montenegro and Albania have been mentioned as possible first in line, but nothing has been signed. We’ll update this page when it changes.

Is Croatia included? Yes. Croatia is an EU member, so EU roaming rules apply there — including in Dubrovnik, a short drive from the Montenegrin border.

Does the Western Balkans free-roaming zone help me? Only if your SIM is from one of those six countries. It doesn’t cover EU SIMs.