EU Roaming for UK Business in 2026: What's Free, What Isn't, and How to Cut the Bill
EU Roaming for UK Business in 2026: What's Free, What Isn't, and How to Cut the Bill
Last updated: April 2026
Before Brexit, UK mobile customers got EU roaming included by EU regulation. After Brexit, that legal requirement disappeared. The networks each made their own call on whether to keep inclusive roaming or charge for it. Five years on, here is where it has landed: a confusing mix of plans, daily charges, fair-use limits, add-ons, and per-network exceptions, where the answer for an identical trip can range from "free" to "£14 per day" depending on which network you happen to be on.
For business buyers, this matters more than it does for consumers. A finance director who flies to Paris twice a month does not want to think about which app to use for international calls or whether their phone will work when they land. They just want their phone to be a phone. Similarly, the office manager who arranges the contracts does not want a surprise £400 line on next month's bill because someone went to a conference in Dublin without telling anyone.
This guide cuts through the mess. Here is exactly what each of the four UK networks charges for EU roaming on business contracts in 2026, what is included by default, what costs extra, and how to get the bill down without changing how your team works.
The 30-Second Summary
O2 is the only one of the four UK networks where EU roaming is actually included by default on every business plan. There is no add-on, no opt-in, no daily charge. If "no daily charges in Europe" matters to you, default to O2 unless something else outweighs it.
Three offers EU roaming free on Inclusive Roaming plans (which you add per SIM) or £2 per day otherwise. The flexibility is the best in the market: you can have inclusive roaming on the SIMs that travel and nothing on the SIMs that do not.
Vodafone depends on the specific business plan tier. Some include EU roaming by default. Others need a paid add-on. Read the small print on your specific plan.
EE generally needs a roaming add-on or a specific tier. Of the four networks, EE is the most expensive for EU roaming on a small business contract, although they will negotiate hard on big multi-line corporate deals.
The Destinations Covered (and the Ones That Are Not)
"EU" in roaming terms is a loose category. Each network has its own list of destinations that count, and they do not exactly match the EU's actual member states. The common pattern is "EU member states + a few add-ons."
Switzerland, Norway, Iceland, Liechtenstein, the Channel Islands, Isle of Man, Gibraltar, and Vatican City are usually included. Andorra, Monaco, Albania and the rest of the Western Balkans usually are not.
Three's Go Roam in Europe covers 49 destinations and is the most generous of the four lists. The full list includes everywhere in the EU plus the obvious additions like Switzerland, Norway, Iceland, Liechtenstein, San Marino, the Channel Islands, Isle of Man and Vatican City.
If you are travelling somewhere unusual (Albania, Bosnia, North Macedonia, Andorra, Monaco), check the destination list on your specific network before you assume EU roaming will apply. Some of these are covered as "Around the World" rather than "Europe" and have different prices.
Network-by-Network Detail
O2: Roam at Home (Included by Default)
O2 Roam at Home is included on every O2 business plan at no extra cost. You get 25 GB of data plus your inclusive UK minutes and texts to use across 49 European destinations. There is no daily charge. There is no opt-in. You just travel and use your phone normally.
That is why we recommend O2 by default for businesses where EU travel is regular but not constant. It removes a whole category of admin from your team. Nobody has to remember to activate anything. Nobody has to worry about a daily fee. Nobody has to call the office manager from a hotel in Lisbon to ask if their phone is going to work tomorrow.
The catch with O2 is on worldwide roaming. Outside Europe, the prices add up quickly. If your team travels to the US, Asia, or anywhere not in the EU plus the usual European add-ons, O2 is more expensive than Three.
The other catch is that you cannot opt out of Roam at Home on lines that do not need it. The 25 GB allowance is included on every line whether anyone uses it or not. Most businesses do not see this as a problem (it is not costing extra) but if you are squeezing every penny out of your contract, the all-or-nothing approach is slightly less efficient than Three's per-SIM model.
Three: Inclusive Roaming Plans (Per SIM)
Three structures roaming as three tiers. You can mix and match across SIMs, so only the people who actually travel pay for it.
Go Roam in Europe (49 destinations)
- Either £2 per day, or no daily charge if the SIM is on an Inclusive Roaming plan
- Up to 12 GB data per month
- Unlimited minutes/texts to other Go Roam Europe destinations and back to the UK
- Republic of Ireland and Isle of Man are always free with no fair-use limit on any Three plan
Go Roam Around the World (71 destinations including Europe)
- £5 per day or free on the Inclusive Around the World plan
- Up to 3,000 mins, 5,000 texts back to UK, 12 GB data
Go Roam Around the World Extra (163 destinations)
- £7 per day or free on the Inclusive Around the World Extra plan
- Same allowances
For a team that travels widely, the Inclusive Around the World Extra plan is the best deal in the UK market right now. For a team that only goes to Europe, the Inclusive Europe plan or just paying £2/day for occasional trips both work.
The big advantage over O2 is the per-SIM flexibility. You can put your sales director on Inclusive Around the World, leave your office staff on standard tariffs with no roaming, and have a few engineers on Inclusive Europe. The bill matches the actual usage.
Vodafone Business: Depends on the Plan
Vodafone Business has multiple plan tiers and the EU roaming treatment varies between them. Some plans include EU roaming as part of the headline tariff. Others do not, and you add it as a paid bolt-on (typically a few pounds per line per month).
The structure is less predictable than O2 or Three because the answer depends on which specific plan you signed up to. If you are on an older Vodafone Business plan, EU roaming might be a paid extra. If you are on the newest plan tier, it might be included.
For a multi-line corporate contract, Vodafone is happy to negotiate. They will often throw EU roaming into the deal to win the business. If you are buying for 50+ lines, push hard on this in the negotiation.
For a small business buying off the shelf, the headline price is what you pay, and you should compare it carefully against O2 and Three for your specific use case.
EE Business: Add-on or Paid Tier
EE generally requires a roaming add-on or a specific (more expensive) plan tier to get EU roaming included. The base business tariffs do not include it. The roaming add-on is typically charged per line per month.
EE makes up for this with strong UK 5G coverage, which is the best of the four UK networks at the time of writing. If 5G coverage at all your sites is a critical requirement and roaming is secondary, EE is still on the shortlist. If roaming matters and 5G is nice-to-have, the other three networks are usually better value.
The Catch Every Network Has: Fair-Use Limits
All four networks have fair-use limits on inclusive roaming. The most common form: if you spend more than 60 days roaming in any 4-month rolling window, you start getting charged extra. Networks will not hide this but they do not emphasise it either, and it bites people who are doing long client engagements abroad or live partly in another country.
The fix is not to fight the fair-use rule. It is to recognise the rule and route around it. If a team member is genuinely based in another EU country for months at a time, get them a local SIM or use eSIM with dual SIM. UK roaming was not designed for permanent expats and should not be used that way.
Data Caps Abroad
All four networks cap mobile data abroad even on inclusive roaming plans. The cap is usually somewhere between 12 GB and 25 GB per month per line, depending on tariff. Once you hit it, you start paying out-of-bundle data rates.
For the average business traveller this is plenty. For someone who tethers a laptop all day for office work while abroad, it is not. The fix is either Three's Data Passport add-on (unlimited data for £6 per day) or, on the other networks, a separate data bundle add-on bought specifically for the trip.
How to Actually Cut Your Roaming Bill
Five practical things that work.
1. Do Not Pay for Roaming on Lines That Do Not Need It
This is the single biggest waste in business mobile contracts. Office staff who never leave the UK should not have an inclusive roaming add-on, ever. Three is the easiest network to do this on because the plans are SIM-by-SIM. O2 makes it harder because Roam at Home is included on every line whether you use it or not.
2. Use One-Off Passes for Occasional Trips
If someone travels twice a year for a week each time, do not pay for inclusive roaming all year. On Three, buy a 7-day Europe pass for £12 each trip. That is £24 a year vs the £60-90 of an annual inclusive add-on. We have a full breakdown of passes vs Inclusive that does the maths.
3. Use Wi-Fi Calling Abroad
All four UK networks support wi-fi calling. When you are connected to wi-fi at the hotel or in the office, your phone uses that for calls and texts. That is not roaming. If you are mostly indoors, this can substantially reduce what you actually consume on the mobile network.
4. Watch Out for Switzerland and the "Not Quite EU" Countries
Most networks include Switzerland in their EU roaming, but not all. If your travel is genuinely only-EU, fine. If it includes Switzerland, double-check the destination list on your specific plan before someone goes.
5. For Long Stays, Get a Local SIM
If someone is based in another country for a month or more, the cheapest answer is a prepaid SIM in that country. Cost is typically £10-25 a month depending on country. UK roaming will hit fair-use limits, a local SIM will not.
The Real Question: Should You Switch Network for Roaming Alone?
Sometimes yes. If you are on EE paying for an EU roaming add-on you do not need to be paying for, switching to O2 (where it is included) often pays back within months. Same goes for Vodafone Business if your plan tier does not include it.
If you are on O2 already, switching for roaming reasons rarely makes sense. The grass is not greener.
If you are on Three already, audit which SIMs have the right inclusive roaming plan and which should be on standard with passes. The answer is often "we are paying for inclusive on more SIMs than we need to" rather than "we are on the wrong network."
Either way, this is exactly the kind of analysis we do as part of a free quote at Compare The Networks. Send us your current bill and your travel pattern. We will tell you whether switching saves money or whether you should just adjust the SIMs you already have. Free quote here.
Frequently Asked Questions
Q: Does the EU still regulate UK roaming?
No. UK customers are no longer covered by the EU roaming regulations after Brexit. Whether you get inclusive roaming depends entirely on your network and your specific plan.
Q: Can I use my phone in the EU exactly like at home?
If you are on O2, yes. If you are on Three with the right inclusive plan, yes. On Vodafone or EE, depends on your contract.
Q: Is Switzerland included in EU roaming?
Usually yes, but check the destination list on your specific plan. It is the most common "is this in or out" question.
Q: What about Norway, Iceland, Liechtenstein?
Almost always included by all four networks.
Q: Can I get unlimited data abroad?
Yes, via Three's Data Passport add-on for £6 per day. The other networks offer similar bolt-ons but at different prices.
Q: What is the cheapest network for occasional EU trips?
Three with one-off passes. £12 buys you a 7-day pass for any of the 49 Go Roam Europe destinations.
Q: What is the cheapest network for regular EU travel?
O2, because Roam at Home is included on every plan with no extra fee. Three is roughly comparable on the right Inclusive Roaming plan if you only need it on certain SIMs.
Q: What about Ireland specifically?
Republic of Ireland is treated as a special case on Three (and most networks). It has no daily charge and no fair-use limit on any Three plan. Other networks treat it the same.
Q: Will EU roaming get cheaper or more expensive in the next few years?
Likely to stay roughly stable. Networks have settled into their post-Brexit positions and there is no regulatory pressure pushing the prices in either direction.