Keeping your home bank and two-factor codes working from Spain

Key rules

• Tell the bank: Report your Spanish address and tax residency to your home bank before you move.
• Codes: Set up app approvals, a token or an authenticator app while your old number still works.
• Internet numbers: Free internet numbers are often rejected by banks, so do not rely on them for codes.
• Roaming: Roaming is for trips; a home SIM used mostly in Spain can be surcharged or restricted, and UK SIMs get no EU protection.

Tell your bank you are moving, before you go

Tell your home bank your new Spanish address and that you are becoming tax resident in Spain. Do this while you can still receive codes on your old number. Banks must keep a record of where you are tax resident, and they report accounts of foreign tax residents to the tax authorities, who share the data with Spain. If you stay silent, the bank may freeze or restrict the account, block cards or online access, refuse new products, or close the account.

Some banks close accounts of customers who live abroad even if you told them. Ask plainly whether the bank will keep your account once you live in Spain. Better to know before you rely on it.

Why blocks happen

• Logins from a Spanish internet connection or a new device look like fraud to the bank's security systems.
• Many banks only serve customers who live in their country, or need an updated address and tax residency.
• Extra anti-money-laundering checks can apply once a foreign address appears.
• The mobile number on file stops working abroad or is cancelled, so one-time codes never arrive.
• Some banks limit card use or certain products when they see a foreign address or new spending pattern.

Policies differ widely by bank, so use this list to ask the right questions.

Keep your codes arriving

Many banks still use SMS to activate things, reset access or approve some payments. Some also need the number on file before they let you change your registered device. So update your contact details and set up a better method while the old number still works.

Methods that do not depend on your home number:

• Approvals in your bank's own mobile app.
• An authenticator app.
• A hardware token or card reader from the bank.
• Passkeys and fingerprint or face login in the bank's app.

Check which of these your bank offers before you give up the number. The decision below helps you choose.

If you want to keep the number, you have these options:

• Keep a cheap prepaid or low-cost plan at home. Pay the small monthly fee or top up, because many prepaid numbers lapse after about 3 to 12 months of inactivity. Expect a few euros a month.
• Use an eSIM as a second line on a dual-SIM phone. Several home operators and low-cost providers sell them.
• Use Wi-Fi calling and SMS if your operator supports it.
• Forward or receive texts through an online service.

Do not rely on internet numbers such as Google Voice or Skype. Banks often reject them because they are not real mobile numbers.

What roaming allows

Roaming is meant for trips, not for living abroad. Within the EU, a home-country SIM can be used at domestic prices while you travel. Once you live in Spain, an operator that sees most of your use and time abroad over about four months can warn you, give you time to change plan, and then add a surcharge or restrict the SIM. Each operator sets its own limits.

If your SIM is from the UK, EU roaming rules do not cover it at all. Your operator sets its own terms, so ask it what applies for a long stay in Spain.

A SIM kept only for codes, used rarely, is less likely to cause trouble than one you use daily in Spain. Get a Spanish number for everyday use.

If you are locked out

Contact the bank's support through its official channels and explain you have moved. The lockout guidance below covers the next steps.

Choosing between options

How will you get your home bank's verification codes while living in Spain?

• Keep your home number active: Fits if your bank relies on SMS for activation, resets or payments. Use a cheap prepaid or low-cost plan, or an eSIM as a second line on a dual-SIM phone, for usually a few euros a month.

• Switch to app approvals, a token or an authenticator app: Fits if your bank offers approvals in its own app, a hardware token or card reader, or an authenticator app, and does not need SMS for resets or changing your device.

• Do both: Fits if you are unsure what your bank still needs SMS for. Set up the app method and keep the number as a backup until the bank confirms it is not needed.

Ask your bank whether SMS is still needed for activation, resets or changing your registered device. If it is, keep the home number. If not, an app or token is enough.

Timeline and deadlines

• Tell your home bank about your new Spanish address and tax residency: as soon as your circumstances change, when you become tax-resident in Spain

• Check which verification methods your bank offers and set up an app, token or card reader: before you give up or cancel your home number

• Pay the monthly fee or top up your home prepaid number so it stays active: regularly, since many prepaid numbers lapse after about 3 to 12 months of inactivity

• Change your plan if your operator warns about permanent roaming: after about four months of mostly using the SIM in Spain, when you are warned and given time to change before a surcharge applies

Digital housekeeping checklist before and after moving

• Save your 2FA recovery codes for Google, Apple, Microsoft, Amazon, PayPal, your banks and any exchanges. Print them or keep them in an offline encrypted vault.

• Back up your authenticator app and password manager. Use an app with encrypted export, keep the setup keys safe, and store the emergency kit or master password offline.

• Export your email and cloud data, such as a Google Takeout or iCloud export. Save scans of passports, IDs, tax returns, contracts and bank statements in an encrypted folder. Keep one copy offline and one somewhere else.

• Back up your WhatsApp or Signal chats.

• List every account tied to your current phone number.

• Add backup ways to sign in before you remove anything: a second email, an authenticator app, a security key or a passkey.

• Add a second phone number or email where the service allows it. Google, Apple, Amazon and PayPal do. Many banks allow only one registered mobile, so ask your bank how to change it.

• Get your Spanish number or an international eSIM while your old number still works. Keep the old number active on a cheap plan or eSIM until every account has moved.

• Update your core accounts first: main email, Apple or Google account, password manager, mobile carrier and banks.

• Tell your home bank you now live in Spain, and update your tax-residency details with it.

• Update tax and pension portals and payment services while you can still receive codes on your old number.

• Switch your bank to app approvals or a hardware token instead of SMS codes, where it offers them.

• Move WhatsApp to your new number with Settings, Account, Change number. The new SIM must be active and the new number must not already have a WhatsApp account. Back up your chats first.

• Change your Apple ID country once you have a Spanish payment method and billing address. Cancel subscriptions and use up any store credit first.

• Update addresses on shops, subscriptions and insurance once you have a Spanish address through empadronamiento (registering at your town hall).

• Remove your old number last. Then check that every login works from Spain.

What to watch out for

• Your bank may freeze or close the account if you do not tell it you moved: Banks must collect your tax residency and report accounts of foreign tax residents to the tax authorities. If it is not told, a bank may freeze the account, block cards or online access, refuse new products or close the account. Tell the bank your new address and tax residency as soon as they change, and ask whether it keeps accounts for people living in Spain.

• Some banks close accounts of customers who live abroad anyway: Some banks only serve customers resident in their own country, so they may restrict or close your account even if you told them. Ask your bank before you move whether it will keep your account, and open a Spanish account in good time as a fallback.

• Codes stop arriving if the number on file stops working: If the number lapses or is cancelled, one-time codes fail and you can be locked out. Some banks also need that number to reset access or change your registered device. Keep the number active or update your contact details and set up app-based approvals before you lose it.

• Logins from Spain can look like fraud: A login from a foreign IP address or new device, or card use with a foreign spending pattern, can lead the bank to block it. Tell the bank where you now live and use your usual device for the first logins.

What if your home bank or portal locks you out

You can usually get back in, but it takes a call to the bank or agency and a proof-of-identity check. Start with the helpline, not the login page. Repeated failed attempts can lock the account further.

If your bank blocks foreign logins

1. Call the international helpline. Most banks list a number for callers abroad that is not a toll number. Say that you now live abroad.
2. Use secure messaging or email if you can still log in, or if the bank has set up another channel.
3. Prove who you are. Banks usually ask for a video call or a copy of your ID.
4. Ask for a fix that lasts. Ask the bank to add a travel or residence flag to your profile. Ask it to switch you from text-message codes to an app or hardware token. Ask whether it can send a letter or code to your new address.
5. Use someone at home if needed. If you trust a person in your home country, ask the branch whether they can visit for you or act as your proxy.

Tell the bank your new address and that you are a non-resident. Some banks restrict or close accounts for customers who live abroad. It is better to learn that now, while you can still arrange another account.

If the phone number for codes is gone

Banks will not change the number on a simple request. They want another identity check. These are the usual routes:

• A video ID call.
• A visit to a branch, sometimes made by a proxy with a power of attorney.
• A signed request with a certified copy of your ID, sent by post.
• Logging in another way, such as with an app, card reader or hardware token, and changing the number in your settings.
• A verification code sent by letter to the address the bank holds.
• Some banks let you update the number in the app with your card, PIN and a selfie.

Call the helpline first and ask which of these your bank offers. Allow days, and sometimes weeks. Do not cancel the old number or SIM until the new one is confirmed.

If a government or tax portal locks you out

The route depends on the country. Check the portal's own help page, or ask the agency which of these it offers:

• The portal's account-recovery function.
• A new activation code sent by post to your foreign address.
• A video ID check.
• An embassy or consulate that offers identity checks or certified copies of documents.
• A trusted person at home who is authorised to act for you.

Tax authorities often have an international phone line or a secure message service. Keep your ID and both your old and new addresses to hand. Once you are back in, update your contact details so the next code goes to a number or address you can reach.

Frequently asked questions

Can I keep using my home-country SIM in Spain once I live here?

Yes, for a while, but your operator can surcharge or restrict a home SIM once you are resident in Spain and use it mostly there. Roam-like-at-home prices are meant for periodic travel. If most of your use and time are abroad over about four months, you are usually warned first and given time to change before a surcharge applies.

Does a UK SIM get EU roaming protection in Spain?

No, UK SIMs are not covered by the EU roaming rules at all since Brexit. Your UK operator sets its own roaming terms, so ask it what it charges and how long it allows use in Spain.

Which two-factor methods work without a home-country phone number?

Authenticator apps, approvals in your bank's own mobile app, hardware tokens or card readers, passkeys and biometric app logins all work without the home number.

Can I use a free internet number like Google Voice to get my bank's texts?

Usually no, because banks often reject internet (VoIP) numbers such as Google Voice or Skype as non-mobile numbers. Use a real mobile number instead, such as a cheap prepaid plan or an eSIM as a second line on a dual-SIM phone.