Spain Phone Plan and Internet for Britons: UK SIM, Contracts, Rights

Setting up a Spain phone plan and home internet starts with a small worry most Britons share: will your UK SIM keep working once you live here? GOV.UK says surcharge-free roaming in the EU and EEA is no longer guaranteed for UK customers, so your plan from home is a bridge for the first weeks, not a long-term answer. Spanish telecom law then gives you real protection once you sign a Spanish contract, from the length of the term to the right to leave. Take a breath: the rules are friendlier than the contracts look. This article is for informational purposes only and is not legal advice; verify current requirements with the relevant Spanish authority or a licensed professional.

Will your UK phone plan work once you live in Spain?

For a visit, usually yes, but nobody official promises it. GOV.UK’s guidance on using your mobile in the EU and EEA, published on December 31, 2020, says that surcharge-free roaming is no longer guaranteed once you travel there. It tells you to check your own operator’s roaming policy before you go, because some operators said they had no plans to change theirs, “however this could change in future.”

Here is the good news: the same page keeps a safety net. UK law caps mobile data roaming at £45 per monthly billing period, so your data stops unless you choose to keep spending, and you must get alerts at 80 percent and 100 percent of the limit. The page is written for people traveling, though, and does not address a UK SIM used by someone who lives in Spain. The official pages read for this guide do not say whether you can keep a UK SIM going indefinitely.

The European side points in the same direction. Your Europe, the EU’s citizen information site, explains that “roam like at home” means no extra charge when you travel from your home country, and it defines roaming as occasional travel outside the country where you live, work, study or have stable links. It adds that other countries beyond the EU, Iceland, Liechtenstein, Norway, Moldova and Ukraine are not covered by the rule, and it does not name the United Kingdom.

If you moved to Spain and kept your home SIM, Your Europe says the operator may charge extra for roaming, within caps. This is written for EU operators, so it describes the rules for a contract in an EU country, not a UK one. The practical reading is simple: a UK plan may survive your first weeks and short trips back, while a Spanish contract is the plan that you can count on. Neither page separates Britons covered by the Withdrawal Agreement from people arriving now.

What to do for mobile, home internet and landline

The table below sets each need beside the step the official pages support. Every row names its page.

One honest gap before you go shopping. The official pages read for this guide do not say which documents a Spanish operator must ask for on a monthly mobile or fibre contract, so the usual set of passport, NIE, address registration and bank account is not confirmed by an official page. If an operator asks for them, the guides on the NIE, the padrón registration and a Spanish bank account show how to get each one. The prepaid rule is the only one the law spells out, and it asks for an identity document without naming which.

What the Spanish contract has to tell you

Spain’s General Telecommunications Law, the Ley 11/2022, sets floors that every operator must respect. The first thing you will be handed, or sent, is a short contract summary.

The law says operators must send the summary free of charge before you are bound, even for contracts agreed at a distance. It has to state the duration and the conditions for renewal, plus how to end the contract and the costs or penalties that follow. Spain’s telecom user portal, run by the Ministry for Digital Transformation, adds that every contract needs a minimum content, including the operator, the tariffs, any minimum term and what leaving early costs, the complaints procedure, whether you sign in person or remotely. Read the line on the minimum term twice before you sign.

The term itself is capped. Consumer contracts cannot run longer than 24 months, with a narrow exception for installment contracts that only cover rolling out a physical connection. When the term ends, the contract renews automatically for the same period. After that renewal you can leave at any time with a notice of one month at most, and you pay nothing except the service during that notice.

Permanence, in plain words

The permanencia is the minimum period you commit to, usually in exchange for something. The ministry’s page on internet access says you normally stay in return for a free installation fee or a discounted router. Two official texts deal with leaving early, in different situations.

The ministry portal pages, which rest on an older royal decree, say that if you leave before the minimum period the operator may ask you to return the benefits you enjoyed, “but no additional amount.” The statute covers a different case: where the law gives you a right to end the contract early, such as a change you refuse, you owe nothing except, if you keep a subsidized phone, at most its pro-rated value or the remaining service fee if that is lower.

Price changes

Your operator must notify you of a change to the contract at least one month ahead and tell you at the same time that you may cancel without extra cost if you do not accept it, unless the change only benefits you, is purely administrative or is imposed by law. You have one month from the notice to exercise that right.

Switching operator and keeping your number

Switching is where Spain’s rules do most of the work for you. Spanish users have the right to change operator, and those with numbers on the Spanish national numbering plan have the right to keep their number whichever operator provides the service. This is portabilidad, which simply means taking your number with you.

The new operator runs the process. The number must be activated within one working day of the date agreed with you, and the old contract ends automatically when the switch finishes. The ministry portal gives the same deadline of 1 working day from the moment you agree with the new operator, and counts working days as Monday to Friday, 8:00 to 20:00, excluding national holidays and Madrid’s regional and local holidays. If you end a contract first, you still have at least one month to move the number. The CNMC, Spain’s competition and markets regulator, calls portability an essential right of subscribers and sets the technical conditions.

For internet, the old provider must keep your service running until the new one activates, and a loss of service cannot be longer than one working day.

A UK number is another matter. Article 70 of the law speaks only of numbers on the Spanish national numbering plan, and the official pages do not say whether a UK number can move to a Spanish operator. Ofcom’s pages on keeping a UK number could not be read for this guide. Before you cancel your UK contract, ask your UK operator what it will do with the number.

Leaving an operator

You may leave at any time. The ministry’s page on cancelling says the operator must process the cancellation within two days, while two other portal pages say two working days, so allow for the longer one. The operator must accept the same channel you used to sign up, so a phone contract can end by phone. Ask for a reference number on the spot. An unpaid debt does not stop you from leaving.

When the line goes down: compensation and complaints

Outages are covered. The ministry says the operator must refund the fixed fee pro rata for the interruption and compensate you automatically in the next billing period when the amount is above one euro.

If you have a problem, the order matters. You complain first to the operator, by phone, online, by post or in a shop, and it must accept phone complaints and give you a reference number. It has one month to answer. If it does not, or the answer does not satisfy you, you can turn to the Oficina de Atención al Usuario de Telecomunicaciones, the state telecom users’ office, within three months of the operator’s reply or the end of its month. You can file online with a digital certificate or Cl@ve, in person or by post at any public registry or to Paseo de la Castellana 162, 28020 Madrid, or with a downloadable form signed by the holder.

Fibre, coverage and the universal service

You are moving into one of Europe’s best connected countries. Spain’s ministry reports that, at June 30, 2025, fixed Gigabit networks reached 94.90 percent of households and fiber to the home 95.92 percent, but 86.01 percent and 88.95 percent in rural areas. The CNMC says fixed broadband passed 20 million lines in July 2026, with 18.3 million on fiber. In a village, check your exact address before you sign.

The universal service is the safety net for a home that operators do not serve well. According to the ministry, it guarantees, wherever you live, a fixed broadband connection of at least 10 Mbit/s downstream and a fixed voice service, at an affordable price. A reasonable request to the designated operator must be met within 60 days; if it is late, the connection still comes and you receive automatic compensation in monthly fees. The same page describes a social tariff for pensioners with family income up to 120 percent of the IPREM, Spain’s public income index, with 70 percent off the connection fee and 95 percent off the monthly line fee.

Two official pages disagree on who runs it. The service pages still name Telefónica as the designated operator until January 1, 2025, a date that has passed and which they do not follow with a successor. A ministry press release of April 22, 2026 says Telefónica is currently the operator, and proposes a new regime from January 1, 2027 with a 100 Mbps speed and every operator obliged to offer it where it has coverage. That is a proposal, not adopted law, so plan on the 10 Mbit/s service until the ministry says otherwise.

Your first week: a calm order to follow

You can do most of this alone. In your first days, keep the UK SIM for calls and codes, watch the £45 data cap, and ask a Spanish operator for the contract summary before you sign anything. If a shop asks for documents, you will want your passport and, once issued, the number from the Withdrawal Agreement residence card or your NIE. Power and water accounts have their own steps in the utilities guide.

Then pick the plan with the shortest term you are comfortable with, since 24 months is a ceiling and not a default, and keep your UK number alive until you know what your UK operator allows.

Get help when the operator will not answer within one month, or when a term is applied that the summary did not show. That is when the telecom office, within three months, is worth your afternoon.

The Spain Navigator puts every step of your move to Spain in order, from the visa to settling in.