UK Wholesale Roaming Caps Cut from August 2026

If the phrase wholesale roaming made your eyes skim ahead, stay with it for a moment. This new rule matters because it sits behind something most of us do notice: whether our phone works affordably when we travel. According to the statutory instrument published on legislation.gov.uk, the Trade (Mobile Roaming) (Amendment) Regulations 2026 were made on 15 July 2026 and come into force on 5 August 2026. The change applies across England and Wales, Scotland and Northern Ireland. It does not rewrite every roaming arrangement everywhere. What it does is update the maximum wholesale rates that mobile providers can charge one another in places covered by a specific international agreement the UK already has in place.

To understand the story, it helps to separate two different prices. The first is the retail price, which is what you might see on your own mobile bill. The second is the wholesale price, which is the behind-the-scenes charge one network pays another when its customer uses a foreign network. **What this means:** these regulations are about business-to-business charges, not a direct cap on the price a consumer sees. If you are a UK customer using your phone in a covered country, your provider may need to pay a local network for that service. The law sets a ceiling on that wholesale charge.

The new caps all move down. For the making of a telephone call, the maximum rate falls from €0.032 to €0.019. For sending an SMS message, it drops from €0.01 to €0.003. For data, which is where modern phone use often adds up fastest, the cap falls from €2.50 per gigabyte to €1.30 per gigabyte before 1 January 2027, and then to €1 per gigabyte on or after 1 January 2027. That last figure is the one worth watching. Most people roaming abroad now use maps, messaging apps, music, video and social media far more than traditional calls or texts. So while all three caps are being reduced, the biggest practical shift is in data. A cap, though, is a ceiling rather than a target, which means providers can charge less than that amount but not more.

This was not a sudden move dreamt up in Whitehall without a paper trail. The explanatory note says the 2023 roaming rules were introduced to give effect to Article 3.69 and Annex XX of the free trade agreement between the UK and the EEA EFTA states: Iceland, Liechtenstein and Norway. In plain English, the international agreement set the framework and the UK wrote that framework into domestic law. Then, on 25 November 2025, the UK-EEA EFTA Joint Committee agreed Decision No. 1/2025 to amend those wholesale roaming rates. The 2026 regulations are the UK's way of putting that decision into force at home. A draft was also approved by both Houses of Parliament before the instrument was made, which matters because it shows this was part of a formal parliamentary process rather than an informal policy tweak.

This is also where careful reading matters. A headline about roaming can make it sound as though every holiday destination is affected, but that is not what the legislation says. The note attached to the instrument points to certain countries or territories covered by an international agreement, and the agreement named here is the one involving Iceland, Liechtenstein and Norway. So if you are thinking about mobile charges in Europe more broadly, you need to keep the scope narrow. This instrument is tied to that UK-EEA EFTA arrangement. It is a useful reminder that legal changes often sound wider than they are, and that a good explainer has to ask not just what changed, but where and for whom.

For providers, lower wholesale caps can ease some of the cost pressure involved in offering roaming services in those covered destinations. That is especially true for data, because the new ceiling is far lower than the old €2.50 per gigabyte rate. In a competitive market, lower input costs can give networks more room to shape roaming bundles, add destinations to plans or avoid passing on the full cost to customers. For consumers, the honest answer is a little more careful. **What this means:** you should not read this instrument as a guarantee that your own roaming bill will fall on 5 August 2026. Providers may pass savings on, keep current prices in place or use the lower wholesale rate to support offers they already run. The dates to watch are 5 August 2026, when the first set of lower caps begins, and 1 January 2027, when the data cap falls again to €1 per gigabyte.

The government says a full impact assessment was not produced because no, or no significant, effect on the private, voluntary or public sector is expected. That tells you how officials see the scale of the change, but it should not make the story sound meaningless. Technical telecoms rules often work quietly in the background, and quiet rules can still shape prices, competition and the deals consumers are eventually offered. The instrument was signed by Lloyd of Effra, Parliamentary Under-Secretary of State at the Department for Science, Innovation and Technology. If you want the simplest takeaway, it is this: from 5 August 2026 the UK is lowering the maximum wholesale roaming charges for calls, texts and data under its agreement with Iceland, Liechtenstein and Norway, with a further cut to data from 1 January 2027. It is a small piece of law, but it is also a good example of how trade agreements, telecoms regulation and everyday phone use meet in real life.