Fixed, variable or mixed: choosing a mortgage rate in Spain
Once you've decided to buy in Spain, the next real decision is how your Spanish mortgage rate is structured. Fixed, variable and mixed loans each shift the risk differently, and the right choice depends on your income, your plans and your tolerance for change.
Who is behind this page. Colibrí Finances is the mortgage brand of PISOK NUEVO HOGAR, S.L., a credit intermediary registered with the Bank of Spain (code E480). We compare more than 20 Spanish banks for people who live abroad. The study is free; we only charge a fee if you sign, agreed in writing beforehand. We answer in English.
Why the rate choice matters for a purchase in Spain
Spanish banks offer three main structures for a mortgage on a home in Spain: a fixed rate that stays the same for the whole term, a variable rate linked to Euribor that moves with the market, and a mixed rate that combines both, usually fixed for an initial period and variable afterwards. None of these is inherently better; each suits a different kind of buyer and a different relationship with monthly certainty.
For non-residents from the United Kingdom, the decision often carries extra weight because mortgage payments usually come from a sterling income converted into euros. A rate that changes over time interacts with currency movements you don't control, which is worth thinking through before signing anything with a bank in Spain.
No rate type is risk-proof against change; each simply distributes uncertainty differently between you and the bank over the life of the loan.
Fixed, variable and mixed: the three structures explained
A fixed-rate mortgage in Spain keeps the same monthly payment from the first year to the last, regardless of what happens to Euribor or wider interest rates. It suits buyers in Spain who value predictability, particularly if the mortgage is a meaningful share of a UK income converted into euros each month.
A variable-rate mortgage is linked to Euribor, reviewed periodically, usually every six or twelve months, plus a margin set by the bank. Payments can go up or down over the term. A mixed-rate mortgage sits between the two: a fixed period at the start, often several years, followed by a switch to variable for the remainder of the loan, which runs until the borrower is typically around 70 to 75 years old.
What changes for a non-resident buyer
Whichever structure you choose, the bank will still ask for the same core proof before approving anything: a recent P60 and payslips, your last filed UK Self Assessment tax return, bank statements from the last three to six months, evidence of any existing loans or mortgage commitments, and a valid passport or UK national identity document. These are usually required with a sworn translation, and the exact list changes by bank.
Spanish banks also ask non-residents for a larger deposit than they would ask a resident buyer; the exact share depends on the bank, your country and your profile, so it is never something to assume in advance. This deposit requirement applies equally whichever rate type you eventually choose, so it is worth settling that question early in the comparison process.
90/180
Your stay in Spain while the file moves forward
As a UK citizen you can stay in Spain for up to 90 days in any 180-day period without a visa. Many buyers in Spain use part of that time for viewings, signing with the notary and opening the Spanish bank account the mortgage requires, then return home while the file progresses remotely.
Comparing the three at a glance
| Rate type | Payment stability | Best suited to |
|---|---|---|
| Fixed | Stable throughout | Buyers who want a known monthly cost from the start |
| Variable | Moves with Euribor | Buyers comfortable with payments changing over time |
| Mixed | Stable, then variable | Buyers who want certainty early and flexibility later |
Currency and tax points that sit alongside the rate decision
Because the United Kingdom uses sterling rather than the euro, the rate type you choose interacts with exchange-rate movements every time you transfer funds to Spain, whether for the deposit, the purchase costs or the ongoing monthly payment. A fixed rate removes one variable from that equation; a variable or mixed rate leaves two moving parts working together instead of one.
Spain and the United Kingdom have a double taxation agreement in place, and once you own the property you will file an annual non-resident income tax return, known as Modelo 210. A local tax adviser should confirm exactly how any rental income or future gains need to be declared both in Spain and to HMRC, since the mortgage structure itself does not change these filing obligations.
- Ask each bank for its current conditions for both fixed and variable products before comparing offers.
- Request the full list of required documents early, since sworn translation and sometimes an apostille take time.
- Factor purchase costs on top of the price: transfer tax on resale homes or 10% VAT plus stamp duty on new builds, notary, land registry, gestoría and the bank valuation.
- If you plan to sell later as a non-resident, remember the buyer will withhold 3% of the price on account of your tax.
- Keep in mind the Spanish Golden Visa ended on 3 April 2025 and is no longer a route linked to a property purchase.
If you live in the United Kingdom
Spain is a relatively short flight away from most UK airports, making regular visits to a Spanish property straightforward for owners based in Britain. Many British buyers are drawn to Spain for its climate, coastal lifestyle and established expatriate communities. One practical point to bear in mind is that Spanish inheritance law differs from UK rules, so it is worth taking specific advice on how it may affect the property and one's estate. Currency movements between sterling and the euro can also affect the overall cost of purchase and ongoing expenses.
What a Spanish bank will usually ask you for
- Proof of income: recent P60 and payslips
- Last filed UK tax return (Self Assessment)
- Bank statements from the last three to six months
- Evidence of existing loans or mortgage commitments
- Valid passport or UK national identity document
Tax at home and in Spain
Spain and the United Kingdom have a double taxation agreement in place, and a local tax adviser should confirm how rental income or gains from Spanish property must be declared and reported to HMRC.
Staying in Spain
As the United Kingdom is no longer an EU member state, British citizens may stay in Spain for up to 90 days in any 180-day period without a visa, and must apply for a visa or residence permit for longer stays.
Since the United Kingdom uses the pound sterling (GBP) rather than the euro, buyers should factor in exchange-rate movements and currency conversion costs when paying for a property or transferring funds to Spain.
Frequently asked questions
Is a fixed rate always safer for a UK buyer than a variable one?
Not necessarily safer, just more predictable. A fixed rate protects your monthly payment from Euribor movements, which can suit a sterling income converted monthly into euros. A variable rate can cost less in some periods and more in others; the right choice depends on your comfort with payments changing over the term, not on one being inherently superior.
Can I switch from variable to fixed later if conditions change?
Some Spanish mortgages allow a change of structure during the term, subject to the bank's conditions at that time and possible fees. This is not guaranteed in every contract, so ask specifically about switching clauses before signing, especially if you expect your circumstances or Euribor expectations to shift significantly.
Does my UK income affect which rate type a bank will offer?
Banks assess income stability, existing commitments and the deposit available before discussing rate structures, using documents such as your P60, payslips and Self Assessment return. A straightforward, well-documented income from the UK generally gives you more room to compare fixed, variable and mixed offers across different banks.
How does the exchange rate factor into a long mortgage term?
Since mortgage payments are in euros and most UK buyers earn in sterling, currency movements affect the real cost of any rate type over a term that can run two or three decades. Some buyers manage this with regular transfers or by discussing currency tools with their bank, independent of the rate structure chosen.
Do I need to be in Spain to decide between fixed, variable and mixed?
No. As a UK citizen you can use part of your 90 days in any 180-day allowance for viewings and signing, but comparing rate offers, gathering documents and corresponding with banks can usually be done remotely beforehand, with travel timed around the notary appointment and account opening.