Understanding how a personal loan works is straightforward: a lender gives you a sum of money, and you repay it through regular instalments that include both principal and interest over an agreed term. Before approving your application, the lender assesses your creditworthiness (income, existing debts and credit history). If your application is approved, you receive the Standard European Consumer Credit Information document and sign the agreement.
For example, borrowing €10,000 over five years at a nominal annual interest rate of 7% means paying around €198 per month and approximately €1,880 in total interest. You also have 14 days to withdraw without a penalty, and you can repay the loan early, subject to a fee capped by law. This guide explains each step, with examples and answers to frequently asked questions.
What is a personal loan?
A personal loan is an agreement under which a financial institution gives you a lump sum of money, and you commit to repaying it, together with the agreed interest and charges, within a specified period. In Spain, consumer loans ranging from €200 to €75,000 are regulated by Law 16/2011 on consumer credit agreements, which provides specific consumer protections.
Knowing how a personal loan works helps you make an informed choice, because offers with similar monthly payments can still have different overall costs.
The difference between a loan and a credit facility
With a loan, you receive all the money upfront and pay interest on the amount borrowed. With a credit facility, the lender makes a credit limit available to you, and you only pay interest on the amount you use, as with a credit card or a line of credit.
What can you finance?
Most personal loans can be used for almost any purpose:
- Buying a car or motorbike.
- Home improvements and furnishings.
- Education, training or a master’s degree.
- Medical expenses or unexpected costs.
- Debt consolidation.
How to apply for a personal loan, step by step
1. Calculate how much you need and what you can afford
Only borrow what you actually need. As a general guideline, your total monthly debt repayments, including the new loan, should not exceed 35–40% of your net monthly income. With our personal loan calculator, you can try different amounts and repayment terms to see which monthly payment fits your budget.
2. Compare offers: nominal interest rate, APR and fees
The nominal annual interest rate (TIN in Spain) is the rate charged on the money you borrow. The annual percentage rate (APR, or TAE in Spain) also takes fees and payment frequency into account, making it the figure to use when comparing offers.
In our example, a nominal annual interest rate of 7% is equivalent to an APR of 7.23% with no fees. If the loan included a 1% arrangement fee, the APR would rise to approximately 7.68%. Also check whether the lender requires you to have your salary paid into an account with them or take out insurance to qualify for that rate.
3. Submit your personal loan application
You can apply online, over the phone or at a branch. You will usually need your Spanish identity document (DNI) or foreigner identification number (NIE), recent payslips or proof of income, your employment history report and your bank account number. The lender will check credit default registers such as ASNEF and the Bank of Spain’s Central Credit Register (CIRBE) to assess your existing debts.
4. Sign the agreement and receive the money
If the lender approves your application, you will receive the Standard European Consumer Credit Information document (known as INE in Spain), a standardised document setting out the terms and conditions so you can compare them with other offers. You then sign the agreement and receive the money in your bank account, often within one or two working days when the process is online.
How a personal loan works during repayment
Your instalment: principal plus interest
Most personal loans use the French amortisation system, with a fixed instalment throughout the repayment term. Initially, a larger share of each payment goes towards interest and a smaller share towards principal. This balance gradually reverses because interest is calculated on the outstanding debt.
Example repayment schedule
For a €10,000 loan over five years at a fixed nominal annual interest rate of 7%, the monthly payment is €198.01. Here is how the first few payments break down:
- Month 1: €58.33 in interest and €139.68 in principal. Remaining balance: €9,860.32.
- Month 2: €57.52 in interest and €140.49 in principal. Remaining balance: €9,719.83.
- Month 3: €56.70 in interest and €141.31 in principal. Remaining balance: €9,578.51.
By the end of the 60 months, you will have paid approximately €11,880, of which around €1,880 is interest. This repayment schedule is the clearest way to understand how a personal loan works month by month.
Interest-only periods and early repayment
Some offers include an interest-only period, during which you only pay interest and your monthly instalment is lower. Bear in mind that this keeps the debt outstanding for longer and increases the cost of the loan.
If at any point you want to repay some or all of the money early, the law limits the fee: a maximum of 1% of the amount repaid if more than 12 months remain, or 0.5% if 12 months or less remain. Repaying early reduces the interest you will pay.
Your rights and obligations
Pre-contractual information and the right to withdraw
Before you sign, the lender must provide the Standard European Consumer Credit Information document and explain the terms so you can assess whether the loan suits your circumstances. In addition, one of the key aspects of how a personal loan works in consumer lending is the right to withdraw: you have 14 calendar days from signing to cancel the agreement without giving a reason or paying a penalty, provided you repay the principal and the interest accrued up to that point.
What happens if you cannot pay?
Understanding how a personal loan works also means knowing what happens if you stop making repayments. If you miss a payment, the lender may charge late-payment interest and a missed-payment fee, and add your details to a credit default register. You are also liable for the debt with all your present and future assets, as established by Article 1,911 of the Spanish Civil Code.
If you anticipate difficulties, contact your lender as soon as possible. It is often possible to extend the repayment term or agree on a temporary interest-only period to reduce your monthly payment.
Frequently asked questions about personal loans
How long does it take to get a personal loan approved?
It depends on the lender and your financial profile. With online applications, you will usually receive a decision within one or two working days, with the money arriving shortly after you sign.
What are the usual requirements?
Being at least 18 years old and having a DNI or NIE, a bank account in Spain, a stable and verifiable income, a manageable level of debt and no entries on credit default registers.
Is insurance compulsory?
No, although some lenders offer a lower interest rate if you take out payment protection or life insurance. Always compare the APR with and without these products.
Can I apply for a loan with another person?
Yes. If there are two borrowers, both are responsible for the debt. With joint and several liability, the lender can claim 100% of the debt from either borrower; with separate liability, each borrower is responsible for their own share. Understanding how a personal loan works with two borrowers is important before signing.
How CreditCheck helps you
At CreditCheck, we build your credit profile by combining the information you provide with a transaction report validated by your bank through Open Banking. This allows us to show you loan offers tailored to your income and actual repayment capacity, rather than assumptions. We never see your login credentials or access your account, and we strictly comply with the GDPR.
Now that you know how a personal loan works, you can create your profile for free and without obligation, compare offers and make a decision with all the information available.