Disclaimer: The prices and information presented on this page reflect a snapshot at the time of research and may change at any time without prior notice.
Liam
06 May 2026
Three pulled free EU roaming on its Value plans in summer 2025. EE has charged £5 a day for European data since 2022. Vodafone now bills its UK customers up to £7.86 per day for the global zones that include the United States, Australia, and Morocco. O2 still includes a 25 GB roaming allowance, but layers a 2 Mbps speed cap on every plan. Among the larger UK carriers, Tesco Mobile has gone the other way and locked free Home From Home roaming in for every Pay Monthly and Pay As You Go customer until at least 2026. The catch sits behind that promise: outside the 48 Home From Home countries, Tesco data costs £5 per megabyte, with no day pass, no global add-on, and no inclusive zone for Turkey, the United States, or anywhere else.
Tesco Mobile is an MVNO that runs on the O2 network in the UK. When a Tesco customer lands abroad, the phone hands off to a partner network chosen by Tesco rather than O2 directly, which is why Tesco's Home From Home rules and rates differ from O2's Travel Bolt On policy. The Home From Home programme covers 48 destinations: every EU member state, Iceland, Norway, Switzerland, Liechtenstein, the Vatican City, San Marino, Monaco, Gibraltar, the Channel Islands and Isle of Man, plus the Atlantic islands (Madeira, the Azores, Canary Islands) and the French overseas territories of French Guiana, Guadeloupe, Martinique, Mayotte, Réunion, St Martin, and St Barts.
Inside Home From Home, calls to UK numbers, texts, and data come out of the standard UK allowance with no roaming surcharge. Customers on a Pay Monthly contract use the included minutes, texts, and gigabytes exactly as they would on the train from London to Manchester. Pay As You Go customers tap into whichever bundle they topped up, with the same allowances applying. Tesco Mobile confirmed in September 2024 that the Home From Home commitment runs at least through 2026, with at least 30 days written notice before any change.
A separate, time-limited initiative covered parts of the Eastern Mediterranean and the Gulf in spring 2026. Calls, texts, and data between the UK and Cyprus, Bahrain, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, and the UAE were credited back from 28 February to 11 April 2026 for all Pay Monthly and Pay As You Go Essentials customers. Roaming inside Cyprus stays under Home From Home rules permanently. The other twelve destinations on that credit list returned to standard international roaming rates after 11 April 2026.
Fair use on Home From Home is monitored on a rolling four-month window. Tesco compares time spent in the UK against time spent in Home From Home destinations, and allowance usage at home against allowance usage abroad. A customer who burns the bulk of their UK plan in, say, Madrid every month while spending little time on a UK address may be flagged. The fair use threshold rarely affects two-week holidays or business trips, but it does reach long-term overseas residents and digital-nomad usage patterns.
Anywhere outside the 48 Home From Home destinations, Tesco Mobile applies a single rate sheet. There are no daily passes, weekly bundles, or country bolt-ons of the kind Three uses for its Around the World Plus plans or that EE bundles into Roam Abroad. Data costs £5 per megabyte. A standard Google Maps session over a few hours can pull 30 to 50 megabytes; ten minutes of Instagram scrolling closer to 80 to 100 megabytes; a single short YouTube clip easily 200 megabytes. The arithmetic is unforgiving: a single gigabyte of data outside Home From Home runs to roughly £5,120 at the published rate.
A default safety buffer caps non-Home From Home data spend at £40, after which the device is barred from further data until the buffer is raised manually in the My Tesco Mobile account or app. The buffer can be set anywhere from £0 (block any overspend) upward. Calls and texts outside Home From Home vary by destination; Tesco sends an arrival SMS on landing that lists the rates for that specific country.
Set or check your safety buffer before you fly. Log into the My Tesco Mobile account or app and verify the data spending cap. Travellers heading outside Home From Home are best served by leaving it at £0 unless an eSIM or local SIM is already in place, since the £40 default still translates to roughly 8 megabytes of data at the published outside-zone rate.
Check whether your destination is on the Home From Home list, not just within Europe. Turkey, Albania, Serbia, Andorra, Faroe Islands, Bosnia and Herzegovina, Kosovo, Moldova, Ukraine, and the United Kingdom's own Overseas Territories like Bermuda or the Falkland Islands are not on the list. The arrival SMS confirms which rate sheet applies once you connect.
Keep the Home From Home fair use window in mind. Tesco monitors usage on a rolling four-month basis. A customer who spends more time or burns more allowance abroad than at home over that four-month window may be flagged for fair use, which can result in surcharges or a reminder to use UK service primarily.
Use 4444 as your free helpline from abroad. The Tesco Mobile helpline number 4444 stays free of charge when called from any roaming destination, which is useful if a sudden bar, a billing alert, or an SMS verification problem appears mid-trip.
Disable background data refresh on a phone outside Home From Home. iOS Background App Refresh, Android Auto-Sync, and cloud photo backups can spend gigabytes overnight. At £5 per megabyte the cost of a single overlooked sync runs into hundreds of pounds before the safety buffer trips.
Inside Home From Home, an eSIM rarely beats the Tesco Mobile bundle on price. The Home From Home allowances mean a UK 100 GB plan effectively becomes a 100 GB plan in Berlin, Madrid, or Lisbon at no extra cost. Outside that zone the calculation flips entirely. A two-week trip to Turkey, the United States, Morocco, Thailand, or anywhere on the Tesco non-zone list cannot draw on a UK allowance at all and runs through the £40 buffer in single-digit megabytes.
A travel eSIM solves three problems at once. It connects to local networks at local rates, so an eSIM Turkey profile uses Turkcell, Vodafone TR, or Türk Telekom directly. It activates before departure, so the phone hops to the local profile the moment a Tesco customer lands rather than triggering Tesco's outside-zone rate. And it leaves the Tesco SIM live for incoming UK calls and SMS verification codes from a UK bank, since modern phones can hold both profiles in parallel.
The comparison sharpens once a Tesco customer steps outside Europe. Tesco's outside-zone rate sheet is unforgiving, while a prepaid eSIM is a fixed-cost line item set before departure.
Tesco Mobile customers benefit most from a TurkSIM eSIM on trips outside the 48 Home From Home destinations. Three categories of trip carry the steepest Tesco overspend risk: city breaks in Turkey or Morocco, business or holiday travel to the United States and Canada, and longer journeys to Asia or Australia.
For a Turkey trip, the local profile connects to Turkcell, Vodafone TR, or Türk Telekom at the local 4G rate from the moment of landing. The Tesco line stays active in parallel, so a UK bank SMS or two-factor verification still reaches the phone over the original number. The same dual-SIM logic applies in the United States, where an eSIM United States rides on AT&T, Verizon, and T-Mobile in the country, and in the United Arab Emirates, where an eSIM United Arab Emirates uses Etisalat (e&) or du.
Multi-country trips work the same way. An eSIM Europe profile covers 36 countries on a single line, useful for Tesco customers heading to non-Home From Home European destinations like Albania, Serbia, or Bosnia and Herzegovina. A travel eSIM is supported on most modern handsets, including the iPhone 17 and recent Samsung Galaxy and Google Pixel models on the eSIM compatible devices list, and installs in minutes via the standard how to install eSIM walkthrough. Once the local profile is the active data line, the £5 per megabyte Tesco rate stops being a concern for the rest of the trip.
No. Tesco Mobile's Home From Home programme keeps EU roaming free for both Pay Monthly and Pay As You Go customers until at least 2026. Calls to UK numbers, texts, and data come out of the standard UK allowance in 48 destinations across the EU and adjacent countries with no surcharge.
Tesco Mobile charges £5 per megabyte for data anywhere outside the 48 Home From Home destinations. A single gigabyte costs roughly £5,120 at the published rate. A default £40 spending cap blocks further data once the limit is reached, unless the safety buffer is raised manually in the My Tesco Mobile account or app.
No. Turkey is not on Tesco Mobile's 48-country Home From Home list, so the standard outside-zone rates apply. Data runs at £5 per megabyte and the £40 safety buffer trips after about 8 megabytes. A Turkey eSIM running on Turkcell, Vodafone TR, or Türk Telekom is the practical alternative for a holiday or city break.
The phone connects to Tesco's US partner networks, but data costs £5 per megabyte and there is no day pass or zone bolt-on. A two-week trip would burn through the default £40 buffer in minutes of casual use. Most Tesco travellers buy a US eSIM that rides on AT&T, Verizon, or T-Mobile instead.
Yes. Tesco Mobile applies the Home From Home rules identically to Pay Monthly and Pay As You Go customers. Pay As You Go users tap into whichever credit or bundle they topped up, and there is no usage cap on Home From Home roaming for that customer group within the standard fair use rules.
No. Tesco Mobile is the only major UK carrier without a daily roaming pass, weekly bundle, or global add-on for non-Home From Home destinations. The single per-megabyte rate is the only outside-zone option, which makes a prepaid travel eSIM the standard fix for trips to Turkey, the United States, Asia, or Africa.
Tesco Mobile blocks further data spending once the £40 default buffer is reached on outside-zone usage. The buffer is adjustable in the My Tesco Mobile app or account, from £0 (block any overspend) upwards. Customers heading outside Home From Home should review the buffer before departure to avoid both bill shock and accidental disconnection mid-trip.
Tesco Mobile uses the O2 network in the UK, but the roaming agreements and rates are set by Tesco rather than O2. O2 includes a 25 GB roaming allowance with a 2 Mbps speed cap on every plan; Tesco runs Home From Home with full UK allowances and no documented speed cap. The two carriers' outside-zone behaviours differ as well.
On a different UK plan? Find your carrier here:
