Refinancing a Spanish mortgage in 2026 means either renegotiating with your existing bank (novacion) or moving the mortgage to a new bank (subrogacion). The decision turns on whether the rate gain is meaningful, the costs of moving, and the headroom your property valuation gives you. With Euribor having moved over the cycle, many existing mortgages are off-market for what is currently available. This guide walks through both routes for residents and non-residents.
Novacion vs Subrogacion
Novacion is a contract amendment with your existing lender — typically used to change the interest rate (fixed to variable, variable to fixed, or change the differential), extend or shorten the term, or modify the amortisation schedule. The bank charges a novacion fee, but the deed-cost is lower than a full new mortgage. Subrogacion moves the mortgage from your current bank to a new one — the new bank pays off the old one and you continue with new terms. Subrogacion costs more in initial outlay (cancellation deed, new mortgage deed, new valuation, registry update) but produces deeper savings if the rate differential is significant.
When Refinancing Makes Sense
The rule of thumb is that refinancing pays off when the all-in cost recoup happens within two to three years of monthly savings — though the exact break-even depends on the cost stack and the remaining term. Variable-rate borrowers facing rate-shocks frequently switch to fixed for predictability. Fixed-rate borrowers signed at high rates may want to switch to current fixed if the differential exceeds 100 basis points. Borrowers near the end of their term get less benefit because the absolute interest cost is small. Always model the cost stack before committing.
The Cost Stack of Refinancing
Costs include: a property revaluation by a bank-approved appraiser (a few hundred euros), the new mortgage arrangement fee at the destination bank (often negotiable to zero on subrogacion campaigns), the cancellation cost on the old mortgage (capped by Spanish law on the slowing-balance percentage applicable), notary and registry fees on the new deed, and gestoria fees for the paperwork. The AJD on the new mortgage deed is now legally borne by the bank since 2018 — but verify in your specific contract. Tying insurance products into the mortgage to gain a better rate is common; unbundle and price separately to avoid hidden cost.
The LTV Question — Has Your Valuation Moved?
Refinancing assumes the new bank will lend against the current property valuation. If property prices have risen since you bought, your effective LTV is lower — giving access to better mortgage tiers (banks often have differentiated rates at 50%, 60%, 70%, and 80% LTV). If prices have fallen, you may face a tighter approval. A revaluation is part of the refinancing process; it sets the basis for the new bank’s offer.
Frequently Asked Questions
Can non-residents refinance?
Yes. Non-residents can refinance Spanish mortgages on similar terms to the original mortgage — meaning typically capped at 60-70% LTV. The documentation requirements largely mirror the original mortgage application.
How long does the refinancing take?
Plan 6 to 10 weeks from initial enquiry to deed signing. Subrogacion involves coordinating two banks; novacion is faster as it’s with the existing lender. Pre-approval in 2 to 3 weeks, deed signing 4 to 7 weeks later.
What if my mortgage is in foreign currency?
Pre-2017 multi-currency Spanish mortgages can sometimes be converted to euros on terms set under EU consumer protection rules. Refinancing into a euro-denominated mortgage is the route most foreign-currency borrowers take.
If you are arranging the original loan rather than replacing it, our guide to getting a Spanish mortgage as a non-resident covers the deposit, documentation and valuation stages. Disclaimer: This information is provided for general guidance purposes only and does not constitute personalised tax or legal advice. Each case must be assessed individually according to the client’s specific circumstances. It is essential to consult a qualified specialist before taking any action or making any decision.Related 2026 guides
Reviewed by: Maria Luisa de Castro, Expert in Off-plan Property Investment, CostaLuz Lawyers. Last updated: May 2026.
If refinancing is not enough to resolve the arrears, see our guide to what happens when you fall behind on a Spanish mortgage.
If a larger deposit is the obstacle rather than the rate, see our guide to Spain’s first-time buyer mortgage guarantee scheme.
This content has been prepared with the assistance of artificial intelligence and reviewed by María Luisa de Castro, a lawyer specialising in Real Estate Law and founder of CostaLuz Lawyers.
The information provided is general and indicative in nature. It should not be used as the sole basis for making professional, legal or investment decisions, and CostaLuz Lawyers assumes no responsibility for decisions taken solely on the basis of this content.
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