I’ve been house-hunting and looking into mortgages lately, and it’s been overwhelming. I’m sure many of you on this forum are wondering the same thing I am: based on my situation, how much will the bank actually lend me? Today, I’m sharing what I’ve learned from my research and consultations to help others who are also on their home-buying journey.
The Core Principle of Bank Loan Assessment
First, you need to understand the core of how banks assess your repayment capacity: the famous 30%-35% golden rule. Simply put, your monthly mortgage payment should not exceed 30% to 35% of your household’s net after-tax income. This is a fundamental risk control measure for banks, ensuring you can afford the payments while maintaining a normal standard of living. If you have other existing loans, their monthly payments will also be included in this calculation.
Key Factors Affecting Your Loan Amount
Besides your income and debt-to-income ratio, banks conduct a comprehensive evaluation based on several other factors:
- Job Stability: Having a permanent contract (contrato indefinido) is a huge advantage. In contrast, if you’re self-employed (autónomo) or on a temporary contract, banks will scrutinize your application more strictly and require a longer history of income proof.
- Down Payment Capacity: This is crucial for determining your loan amount! Banks in Spain will typically finance a maximum of 80% of the property’s appraisal value or purchase price (whichever is lower). This means you need to have at least a 20% down payment yourself.
- Savings and Assets: In addition to the down payment, you’ll need to have an extra 10%-15% of the property price saved up to cover various taxes and fees. Having other savings or assets can also demonstrate your financial health to the bank.

To make it clearer, here’s a simple table I made to estimate how much cash you’d need for a €300,000 property. This is just an approximation, as specific tax rates vary by region.
| Item | Estimated Amount | Notes |
| Property Down Payment | €60,000 | Banks usually finance a maximum of 80% |
| Taxes & Fees | €36,000 | Includes ITP/IVA, notary, and property registry fees |
| Total Funds Needed | Approx. €96,000 | Not a small expense It’s a really large sum of money! |
The bank’s decision on your loan amount is a comprehensive assessment; it’s not as simple as just looking at your payslip. I highly recommend that before you set your heart on a property and submit an application, you should talk to loan advisors at a few different banks and ask for a free financial viability study. This will give you a clear idea of your budget and show you where you might need to improve. Have you encountered any pitfalls or have any special tips from your own mortgage application process? Feel free to discuss and share in the comments below!