Signing a lease in Spain while your salary still lands in a bank account back home is normal for expats, and it is also where a surprising amount of money quietly leaks away. Between exchange rates, bank charges and landlords who would rather set up a Spanish direct debit, the way you move the money ends up mattering more than most people expect when they first agree a monthly figure.
Before any money moves, you need three things from the other side: the full legal name on the account, the IBAN, and, for some international transfers, the BIC or SWIFT code. Ask for them in writing and check the name matches the person or company on your contract. A surprising number of payment failures are not about money at all. They are an IBAN typed with one wrong digit, or a name that does not match the account.
If both accounts are in euros, a SEPA transfer is the default route. It is normally free or close to free between euro-area banks, and it usually lands within one business day. SEPA Instant moves the money in seconds. If your sending account is not in euros, though, the transfer stops being simple: the money has to be converted, and that conversion is where the real cost hides.
For monthly rent, Spanish landlords normally expect a domiciliación, a SEPA direct debit from your account. It is set up once with a signed mandate, and after that the money leaves on the same day each month without you doing anything. If you would rather stay in control, a standing order or a manual transfer each month works too, but it puts the punctuality on you. Late rent is the fastest way to sour an otherwise easy tenancy.
When you send from pounds, dollars or another currency, the fee you see is rarely the real cost. Banks tend to add a margin to the exchange rate instead, so a payment advertised as commission-free can still leave you several percent short of the mid-market rate you will find on any comparison site. Specialist transfer providers usually show the mid-market rate and charge a separate, visible fee, which makes the comparison honest. Check the rate you are actually getting, not the headline commission.
A quick habit that saves real money: decide how much rent you need in euros, then check how many pounds or dollars it takes to get there, rather than sending a round sum and accepting whatever arrives.
Large or regular incoming transfers attract attention under Spanish anti-money-laundering rules. A landlord, an agency or your Spanish bank may ask for evidence of where the money comes from: payslips, a sale contract, a tax return or a letter from your employer. This is routine, not suspicion, and it goes faster if you have the paperwork ready before the first payment rather than after someone freezes a transfer to ask.
Confirm the IBAN and account name in writing. Decide between a direct debit mandate and a manual transfer, and stick to the date. Compare the real exchange rate, not the commission, if you are converting from another currency. Keep the transfer confirmation with the reference your landlord or agency gave you, because that reference is what ties the payment to your contract if anyone later claims they never received it.
None of this is complicated once it is set up. The trick is to sort the bank side before you sign, so the first month of your new home is about the house and not about a payment stuck somewhere in a correspondent bank.