Fixed, variable, or mixed mortgage: which one to choose according to your profile
Choosing between a fixed-rate, variable-rate, or mixed mortgage is one of the most important financial decisions of your life. There is no universal answer: the best option depends on the Euribor at the time of signing, your time horizon, your risk tolerance, and your ability to make early repayments. This guide provides you with the tools to make an informed decision based on real data.
In this article
The three types of mortgages explained
In Spain, there are three main types of mortgage for housing. Each one responds to a different logic of risk distribution between the bank and the client.
F
Fixed-Rate Mortgage
from 2.42%
Annual TIN (best offer, Mar. 2026)
The monthly payment never changes over the life of the loan, regardless of how Euribor evolves. The bank assumes the interest rate risk.
- Predictable fee forever
- Complete protection against Euribor rate hikes
- Ideal for long-term planning
- Initial type higher than variable
- You don't benefit if Euribor goes down
- Higher early repayment commission
Best for: conservative profile
V
Variable-Rate Mortgage
Euribor + 0.50%
typical differential (Mar. 2026)
The interest rate is reviewed periodically (usually every 6 or 12 months) based on Euribor. The installment goes up or down with the market.
- Lower initial rate than fixed
- You benefit if Euribor falls
- Lower early repayment commission
- Unpredictable long-term quota
- Risk in the face of rising Euribor
- Difficult budgetary planning
Best for: rapid depreciation
M
Hybrid Mortgage
from 1.55%
fixed first 5-10 years (Mar. 2026)
It combines an initial fixed-rate period (typically 5, 7, or 10 years) followed by a variable-rate period referenced to Euribor. The market favorite in 2026.
- Very competitive initial fixed rate
- Stability in the years of greatest financial strain
- Flexibility in the variable component
- Uncertainty in the second phase
- Variable part planning is required
- It may be less optimal if Euribor rises sharply
Best for: risk-cost balance
Euribor: how it works and how it affects your mortgage payment
The Euribor (Euro Interbank Offered Rate) is the interest rate at which European banks lend money to each other. It is the benchmark index for 95% of variable-rate mortgages in Spain. It is published daily, and the relevant value for mortgages is the 12-month Euribor.
2.40%Euribor 12m, March 2026
4.16%Recent all-time high (Oct. 2023)
-0.50%All-time low (January 2021)
64%New fixed-rate mortgages in 2026
How to calculate a variable mortgage payment
Applied type
12m Euribor + bank's spread (e.g. Euribor 2.40% + 0.50% = 2.90% nominal interest rate).
Review
The fee is reviewed every 6 or 12 months according to the contract. If the Euribor rises by 1 point at the review, the monthly payment of a €200,000 mortgage over 25 years increases by approximately €100-110 per month.
Advice
Always simulate with a hypothetical Euribor of 4% to ensure the resulting payment remains affordable for your budget.
"The decision between fixed, variable, or mixed isn't made by just looking at today's rate. It's made by calculating the total cost under different Euribor scenarios throughout the entire life of the loan."
— All4Flat Team, BarcelonaComplete comparison: fixed vs. variable vs. mixed
| Feature | Fixed | Variable | Mixed |
|---|---|---|---|
| Current interest rate | From 2.42% nominal interest rate | Euribor + 0.50% | From 1.55% (fixed 5-10y) |
| Quota stability | Total over the life of the loan | Review every 6-12 months | High in early years |
| Risk from Euribor increase | None | Stop | Moderate (variable phase only) |
| Benefit if Euribor drops | No | Yes, low quota | Variable phase only |
| Total cost if Euribor remains low | More expensive | Cheaper | Intermediate |
| Total cost if Euribor rises sharply | Cheaper | More expensive | Partially protected |
| Early repayment fee | Up to 2% (first 10 years) | Max. 0.25% (first 5 years) | Mixed depending on the phase |
| Recommended profile | Conservative, long term | Accelerated depreciation | Risk-cost balance |
Quota simulation with real data
Hypothesis: €400,000 apartment, 80% financing (€320,000 borrowed), 25-year term, with the best rates available in March 2026.
Fixed-rate Mortgage
Tax ID2.42%
Monthly fee€1,414
Total interest cost€104,200
Quota variationNever
Reference bankOpenbank
Variable Rate Mortgage
Tax IDEuribor + 0.50%
Today's installment (Euribor 2.40%)€1,396
Installment if Euribor = 4%€1,712
Quota variationEvery 12 months
RiskStop
Mixed Mortgage
Fixed TIN (first 5 yrs)1.55%
Fixed phase fee€1,286
Variable phase charge€1,440
Savings vs. fixed (initial phase)€128/month
Reference bankIbercaja
Illustrative simulation. Actual installments depend on the applicant's profile, relationship with the bank, and property appraisal. Always check the exact terms with the institution.
Which mortgage suits your profile
There is no such thing as a perfect mortgage in the abstract. The optimal decision depends on who you are and how you plan to use the property.
PROFILE 01
First home, long-term
You're buying your main residence, have a tight budget, and can't afford payment increases. Your time horizon is 20-30 years. You prioritize peace of mind over potential savings.
Fixed-rate mortgagePROFILE 02
Investment with quick payback
You buy to rent or you can pay off your mortgage early in 8-12 years. You tolerate variable payments and want to maximize interest savings.
Variable mortgagePROFILE 03
Medium-term buyer
You want stability in the early years (when the financial burden is heaviest) and are willing to take on some variable risk in the second half of the loan. The most common profile in 2026.
Hybrid mortgageHow to negotiate the best terms
- Compare at least 3 entities: rates can vary by up to 0.5 points between banks for the same profile. Use a mortgage broker if you don't have time to negotiate directly.
- Beware of linkages: Direct depositing your salary, taking out a life or home insurance policy can reduce the interest rate by 0.3-0.5 points, but calculate whether the savings in interest rates outweigh the cost of the linked products.
- APR is the correct metric: Always compare by APR, not by nominal interest rate. The APR includes all associated loan costs and allows for objective comparison of offers.
- Negotiate the spread on the variable: The Euribor + spread is negotiable. A spread of 0.40% vs 0.60% represents thousands of euros over the life of the loan.
- Pre-approval first: Get mortgage pre-approval before making offers on properties. It gives you negotiating power with the seller and certainty of your real purchasing capacity.
Frequently asked questions
Which is the best mortgage in 2026: fixed, variable, or mixed?
With Euribor at 2.40% in March 2026, the mixed-rate mortgage offers the best risk-cost ratio for most profiles: a very low fixed rate in the first few years and variable exposure when the loan is more amortized. The fixed-rate option is best if you prioritize complete peace of mind.
If I already have a variable-rate mortgage, should I switch to a fixed-rate one?
It depends on the fixed rate you can get today versus the expected Euribor for the coming years. If your current spread is low (e.g., Euribor + 0.30%) and Euribor continues to fall, it might not be worth it. Calculate the cost of the novation or subrogation before deciding.
How much do banks finance for a home purchase?
Banks generally finance 80% of the appraisal value for primary residences. For second homes or investors, the limit is usually 70%. Non-residents typically access 60-70%. The remaining 20% plus expenses (10-12%) must be equity.
What is the spread of a variable-rate mortgage?
It is the fixed margin that the bank adds to Euribor to calculate the applicable interest rate. For example, if Euribor is at 2.40% and the spread is 0.50%, the resulting rate is 2.90%. The spread never changes during the life of the loan.
Can I switch from a variable-rate to a fixed-rate mortgage without any cost?
You can carry out a novation with your current bank (this may incur a cost) or a subrogation to another bank (the new bank usually covers the costs). Since Law 5/2019, the fee for converting from a variable to a fixed rate is limited to 0.15% during the first 3 years and 0% from the fourth year onwards.
What percentage of my income should the payment not exceed?
The prudent criterion is that the mortgage payment should not exceed 30-35% of net monthly income. Banks usually apply this same limit in their risk analysis. Always simulate with the maximum possible payment (with Euribor at 4-5%) to verify that it remains affordable.
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