In the current economic context, with interest rates rising after years of historic lows, mortgage repayment has become a key financial strategy for thousands of Spanish households. Understanding what repayment means, how to do it, and when it is most advantageous can lead to significant financial savings and provide greater financial peace of mind in the medium and long term.
Amortizing a mortgage means gradually repaying the debt contracted with the financial institution by making the payments established in the contract. Each mortgage payment consists of two parts: the portion corresponding to interest and the portion that reduces the outstanding principal (amortization). Over time, as the principal decreases, interest is calculated on a smaller amount, which means that, in the most common amortization system (the French system), the portion of the payment allocated to interest decreases while the portion allocated to principal repayment increases.
In addition to this ordinary amortization through regular installments, there is also early repayment, which consists of paying an additional amount to the bank on top of the monthly installment, with the aim of reducing either the outstanding principal or the term of the mortgage.
This is the most common system. It is characterized by constant payments throughout the life of the loan. At the beginning, most of the payment goes toward interest, and a smaller portion amortizes the principal. Over time, this proportion reverses.
Pros and cons
It has constant and predictable payments, which facilitate financial planning; however, since a large portion of interest is paid at the beginning and little principal is amortized, the total cost of the loan is higher if no early repayments are made.
Example
For a 30-year loan of €200,000 at a fixed interest rate of 3%, the monthly payment would be approximately €843. In the first payment, about €500 would be interest and €343 would be principal. After 15 years, the composition would have changed: about €300 would be interest and €543 would be principal.
In this system, the principal repayment is constant in each installment, but the interest is calculated on the outstanding principal, which decreases. This results in decreasing payments.
Pros and cons
The total cost in interest is lower than in the French system for the same term and interest rate, but the initial payments are very high.
Example
For the same 30-year loan of €200,000 at 3%, the constant monthly principal repayment would be €200,000 / 360 = €555.56. Adding to this the interest for the first month (€500), the initial payment would be €1,055.56. At the end of the loan, the payment would be only €556.
Linked to investment products. The borrower pays only interest during the term of the loan and, at maturity, must repay the total principal in a single payment (bullet), which is usually covered by a parallel savings or investment plan.
Pros and cons
Payments are lower during the life of the loan, since only interest is paid, but there is a high risk at the end of the term, as the entire principal must be available to repay the debt.
Example
For a loan of €200,000 at 3%, the monthly payment would consist solely of €500 in interest. At the same time, the customer sets up a savings plan to accumulate €200,000 over 30 years.
Amortization works based on the relationship between the outstanding principal, the interest rate, and the term. Each payment first satisfies the interest for the period, and the remaining amount reduces the principal. This means that, in the following period, the interest payable is slightly lower. This “snowball” effect is slow at first but accelerates over time.
In an early repayment, the additional amount contributed is deducted directly from the outstanding principal, causing a “jump” in this process and reducing the calculation of future interest, lowering the monthly payment or shortening the loan term.
To calculate the constant payment under the French amortization system, the following formula is used:
C = K × [ i × (1 + i)^n ] / [ (1 + i)^n − 1 ]
Where:
For a principal amount (K) of €150,000, an annual interest rate of 2.5% (monthly rate = 0.025 / 12 = 0.002083), and a term of 20 years (n = 240 payments):
C = 150.000 * [0,002083 * (1,002083)²⁴⁰] / [(1,002083)²⁴⁰ - 1] ≈
€794 per month.
The savings from early repayment do not have a single formula, as they depend on the option chosen. However, the calculation of the new outstanding principal is as follows:
New Principal = Outstanding Principal − Early Repayment
Let’s assume that after five years of the mortgage in the previous example (€150,000 at 2.5% over 20 years), the outstanding principal is €120,000. If you make an early repayment of €20,000, the new principal will be €100,000.
By reducing the payment amount, with the remaining term unchanged, the new payment is recalculated based on €100,000, resulting in approximately €530 (compared to €794).
By reducing the term while maintaining the €794 payment, the time needed to repay €100,000 would be significantly reduced.
The easiest way to calculate these scenarios is by using the early repayment simulators offered by most banks on their websites (Bankinter, Banco Santander, Sabadell, etc.) and independent financial portals (Rankia, Idealista).
First, you should review your mortgage contract (you may be interested in: annual mortgage review). Check the conditions for early repayment, especially the fees. You can also request a detailed simulation from your bank.
Then compare and decide whether you are more interested in reducing the payment to ease your monthly liquidity or reducing the term to save more interest and become a homeowner sooner.
Finally, formalize the transaction by signing the documentation that modifies the terms of your mortgage.
The profitability of repayment depends on the interest rate of your mortgage and the available investment alternatives.
With variable-rate or high fixed-rate mortgages, repayment is generally very profitable, since the savings in interest are equivalent to obtaining an after-tax return equal to the mortgage interest rate.
En hipotecas a tipo fijo muy bajo (<2-2,5%), la rentabilidad relativa es menor. En estos casos, podría ser más beneficioso invertir ese dinero en productos financieros que potencialmente ofrezcan una rentabilidad superior.
In addition, it is more beneficial to repay at the beginning of the loan, when the portion of the payment that goes toward interest is higher.
You might be interested in: fixed-rate, adjustable-rate, or hybrid mortgages.
Saving on interest: by reducing the outstanding principal, you lower the total amount of interest paid, reduce the monthly payment or the term, gain peace of mind by lowering your debt level, and increase your future savings capacity.
There is a loss of liquidity and also an opportunity cost, since the money used for repayment could generate higher returns if invested in other products. There may also be fees if repayment is made before the legally established deadlines, and there is a risk that the tax authorities may consider the debt cancellation as capital gains.
In the current context of rising ECB interest rates, if you have a variable-rate mortgage, your Euribor + spread may exceed 3.5% to 4%. In this scenario, paying off your mortgage is one of the best investments you can make.
Make sure you have sufficient savings to cover at least 3 to 6 months of expenses before allocating extra money to your mortgage.
Generally, reducing the term generates greater total interest savings, while reducing the payment provides more monthly flexibility. Choose based on your priority.
For very large repayments or full cancellations, it is advisable to review the possible tax implications.
Sometimes, banks may offer favorable terms or fee waivers so as not to lose you as a customer.
There is no legal limit. You can repay from small amounts up to the full outstanding balance.
No. Early repayment does not have any direct tax benefits.
Mortgage repayment insurance is a product that covers your mortgage payments in the event of death, disability, or unemployment. The cost varies but can range approximately from €200 to €600 per year.
Reducing the term is more cost-effective, as you save more interest by shortening the life of the loan. Reducing the payment is better if you are looking to improve your immediate monthly liquidity.
Possibly nothing. By law, variable-rate mortgages do not have early repayment fees, and fixed-rate mortgages do not have fees after ten years. If you repay earlier, the maximum fee is 0.15% for variable-rate mortgages and 2.5% for fixed-rate mortgages.
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Paying off your mortgage is a financial strategy that should be considered after carefully analyzing the specific terms of the mortgage, your personal liquidity situation, and your long-term financial goals. In some cases, it may not be the best option for your finances and peace of mind.
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Funded:
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Objective:
676.972,00 €
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