Published: 23 February 2026 • Compare The Networks
Roaming charges can turn an overseas business trip into a financial headache. Since the UK left the EU, mobile networks are no longer required to offer free EU roaming, and the charges vary dramatically between providers and destinations. This guide compares roaming costs across all major UK business networks, works through real trip cost scenarios, and shows you how to avoid bill shock when your team travels abroad.
EU Roaming: What Changed After Brexit?
Before Brexit, UK mobile users benefited from the EU's "Roam Like at Home" regulations, which meant you could use your UK allowance across the EU at no extra cost. Since 1 January 2021, UK networks have been free to reintroduce roaming charges -- and most have.
However, each network has taken a different approach. Some still include EU roaming in certain plans, while others charge daily fees or per-MB rates. The differences can mean hundreds of pounds in cost variation on the same business trip.
EU Roaming Charges by Network (Business Plans)
| Network | EU Roaming Policy | Daily Charge | Data Allowance Abroad | Fair Use Cap |
|---|---|---|---|---|
| EE Business | Daily roaming pass (auto-applied) | £2.47/day | Uses UK allowance up to fair use cap | 25GB per month |
| Vodafone Business | Included on some plans; paid pass on others | £0 - £2.00/day (plan dependent) | Uses UK allowance up to fair use cap | 25GB per month |
| Three Business | Go Roam in EU destinations | £2.00/day | Uses UK allowance up to fair use cap | 12GB per month |
| O2 Business | Europe Zone included in selected plans | £0 - £2.00/day (plan dependent) | Uses UK allowance up to fair use cap | 25GB per month |
Tip Vodafone Business and O2 Business both offer plans with EU roaming included at no extra daily charge. If your team travels to Europe regularly, these plans can save a significant amount compared to EE or Three.
Rest of World Roaming Charges
Outside Europe, roaming charges rise sharply. All UK networks charge significantly more for the USA, Asia, Middle East, and other non-EU destinations. Here are the key rates:
| Network | USA Daily Pass | USA Data (per MB without pass) | Australia Daily Pass | UAE Daily Pass |
|---|---|---|---|---|
| EE Business | £5.54/day | £6.00/MB | £5.54/day | £5.54/day |
| Vodafone Business | £6.85/day | £6.00/MB | £6.85/day | £6.85/day |
| Three Business | £5.00/day | £6.00/MB | £5.00/day | £5.00/day |
| O2 Business | £6.00/day | £6.00/MB | £6.00/day | £6.00/day |
Without a daily pass, roaming charges are extreme. Data can cost £6.00 per megabyte on some networks. A single hour of normal smartphone use (email, maps, web browsing) can consume 100-200MB, resulting in a £600-£1,200 charge. Daily passes are essential for any non-EU travel.
Real Trip Cost Scenarios
Let us work through what a typical business trip actually costs in roaming charges across each network.
Scenario 1: Three-Day Trip to Paris (EU)
Sales director attends a trade show. Uses phone for email, maps, Teams calls, and light browsing.
| Network | Daily Rate | 3-Day Cost | Annual Cost (6 EU trips) |
|---|---|---|---|
| EE Business | £2.47 | £7.41 | £44.46 |
| Vodafone Business (incl. plan) | £0.00 | £0.00 | £0.00 |
| Three Business | £2.00 | £6.00 | £36.00 |
| O2 Business (incl. plan) | £0.00 | £0.00 | £0.00 |
If your team makes frequent EU trips, Vodafone or O2 business plans with included EU roaming save £36-£45 per person per year compared to EE and Three.
Scenario 2: Five-Day Trip to New York (USA)
Managing director attends a conference. Heavy phone use -- email, Teams video calls, Uber, Google Maps, and evening personal use.
| Network | Daily Rate | 5-Day Cost | Annual Cost (4 US trips) |
|---|---|---|---|
| EE Business | £5.54 | £27.70 | £110.80 |
| Vodafone Business | £6.85 | £34.25 | £137.00 |
| Three Business | £5.00 | £25.00 | £100.00 |
| O2 Business | £6.00 | £30.00 | £120.00 |
For regular US business travellers, Three Business offers the cheapest roaming at £5.00 per day. The difference between Three and Vodafone is £37 per year per person -- which adds up across a team.
Scenario 3: Mixed Travel (EU + US + UAE)
Business owner makes 4 EU trips, 2 US trips, and 1 UAE trip per year (average 3 days each).
| Network | EU (12 days) | US (6 days) | UAE (3 days) | Annual Total |
|---|---|---|---|---|
| EE Business | £29.64 | £33.24 | £16.62 | £79.50 |
| Vodafone Business (EU incl.) | £0.00 | £41.10 | £20.55 | £61.65 |
| Three Business | £24.00 | £30.00 | £15.00 | £69.00 |
| O2 Business (EU incl.) | £0.00 | £36.00 | £18.00 | £54.00 |
For mixed-destination travellers, O2 Business comes out cheapest overall thanks to included EU roaming and competitive rest-of-world rates.
Roaming Bolt-Ons and Passes
All four major networks offer bolt-on roaming packages that can reduce costs further, particularly for extended stays:
- EE Roam Abroad -- £10/month add-on covering the EU plus 47 other destinations; uses your UK allowance with a 25GB fair use cap
- Vodafone Global Roaming Plus -- £6/day for 83 destinations outside Europe; includes 500MB/day data and unlimited calls and texts
- Three Go Roam Around the World -- included on selected plans covering 71 destinations; £2/day for EU and £5/day for rest of world
- O2 Travel Bolt On -- £4.99/day for up to 75 destinations worldwide; uses UK data allowance up to 10GB daily
Tip If a team member has a trip lasting more than a week, a monthly bolt-on is almost always cheaper than daily charges. For example, EE's £10/month Roam Abroad bolt-on costs less than 5 days of daily roaming charges in the EU.
Tips to Reduce Business Mobile Roaming Costs
1. Use WiFi Calling
All major UK networks support WiFi calling. When connected to hotel, conference, or restaurant WiFi, your phone routes calls over the internet rather than the mobile network. WiFi calls to UK numbers are typically free -- even when abroad. Enable this in your phone's settings before travelling.
2. Download Offline Maps
Google Maps and Apple Maps both support offline downloads. Download maps for your destination before you leave, and navigation will work without using any mobile data.
3. Pre-Download Everything
Download emails, documents, presentations, and any files you will need before boarding the plane. Set email to manual sync rather than automatic push to reduce background data consumption.
4. Use a Local eSIM for Data
If you are staying in one country for several days, a local eSIM data plan can be dramatically cheaper than UK roaming. Providers like Airalo offer 5GB data eSIMs for the USA from around £8 total. Use local data for everything except calls, which can be made over WiFi.
5. Set Up Spending Caps
Business mobile contracts allow you to set per-line spending caps. Configure a roaming spend limit for each employee to prevent unexpected charges. All four UK networks offer this through their business management portals.
6. Disable Background App Refresh
Many apps consume data in the background without you realising. Before travelling, go to Settings and disable background app refresh for all non-essential apps. Social media apps are particularly heavy consumers.
Find the Best Business Roaming Deal
We compare business mobile plans with the best roaming rates for your team's travel patterns. Tell us where your team travels and we will find the most cost-effective plan.
Get a Free QuoteQ: Do daily roaming passes apply automatically or do I need to opt in?
On EE, daily roaming passes apply automatically when you use your phone abroad. On Vodafone, Three, and O2, it depends on your plan -- some include roaming automatically, others require you to activate a bolt-on. Check your plan details before travelling or contact your business account manager.
Q: Am I charged for a roaming day pass on days I don't use my phone abroad?
Most networks only charge for a daily pass on days you actually use data, make calls, or send texts while abroad. Simply having your phone switched on but not using it should not trigger a charge. However, background data usage (automatic app updates, email sync) can trigger a daily charge, so consider enabling aeroplane mode with WiFi only if you want to avoid charges on specific days.
Q: Can I reclaim VAT on business mobile roaming charges?
Yes. Roaming charges appear on your business mobile invoice and are subject to VAT. If you are VAT-registered and the contract is in your business name, you can reclaim the VAT on roaming charges just like your standard monthly bill.
Q: What is the best network for businesses that travel globally?
For EU-heavy travel, choose Vodafone or O2 with included EU roaming. For US-heavy travel, Three offers the cheapest daily rate. For mixed global travel, O2 Business typically provides the best overall value. If your team travels to more exotic destinations, compare the specific destination rates on each network's roaming pages, as they vary significantly.
Q: Are business roaming rates different from personal roaming rates?
In most cases, the daily rates and bolt-on prices are similar between business and personal plans on the same network. The key differences are that business plans typically offer centralised spend controls, roaming can be enabled or disabled per line by an administrator, and charges appear on a single business invoice for easier expense management.