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Mortgages

Mortgage Subrogation and Switching: When It's Worth It

If your mortgage has a high spread or poor conditions, switching it can save you thousands of euros. We explain how.

Mortgages · Updated October 2026 · 5 min read

✓ Content reviewed by collaborating registered lawyers of the platform. Last updated: October 2026. Based on official sources (BOE, Generalitat de Catalunya, Agència de l'Habitatge, ICAB). See our editorial policy.

You are not tied to your mortgage for life. If the conditions are no longer competitive, you have two ways to improve them.

Novation: renegotiating with your bank

It means modifying the conditions (rate, term, tied products) with your current bank. It is faster and usually has lower costs, but it depends on the bank's willingness.

Subrogation: switching bank

You move your mortgage to another bank that offers better conditions. The new bank takes over the loan. It involves a new valuation and, sometimes, fees.

When is it worth it?

  • When your spread or rate is well above the market.
  • When you want to move from variable to fixed (or mixed) for stability.
  • When the savings clearly exceed the cost of switching.

We compare the options (see fixed, variable or mixed) and handle it with our mortgage broker.

Frequently asked questions

We answer your questions


Novation modifies the mortgage with your current bank; subrogation moves it to another bank with better conditions. We study which suits you based on costs and savings.

It usually involves a new valuation and, depending on the case, subrogation or novation fees. We calculate whether the savings pay off before taking the step.

Novation modifies your mortgage with the same bank; subrogation moves the loan to another lender with better terms. Both avoid setting up a brand-new mortgage.

Subrogation or early-repayment fees may apply depending on the type and date of the loan, plus a new appraisal. We calculate whether the saving pays off.

Yes. When you notify a subrogation, your bank may make a counteroffer to retain you. Compare both with the numbers in hand.

Want to improve your current mortgage?

We study whether a novation or a subrogation suits you and negotiate with the banks for you.

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