Lately, more and more people in the forum are discussing property purchases and investments, and the atmosphere is buzzing! However, while everyone is focusing on prices, locations, and mortgages, there’s a very serious yet crucial matter that’s rarely mentioned: the declaration of foreign assets in Spain, famously known as Modelo 720.
This isn’t something to be taken lightly. I have a friend who almost got into big trouble for not understanding Modelo 720. To put it simply, if you are considered a tax resident of Spain and your total assets abroad, such as those from overseas property investments, exceed a certain amount, you must declare them to the Spanish Tax Agency. And we’re not just talking about bank deposits; assets like property, stocks, funds, and insurance policies are all included!

Who needs to file Form 720?
Many people think this doesn’t apply to them because they are just regular salaried employees, but that’s a big mistake. The Tax Agency’s rules are quite clear. You must file if you meet any of the following conditions:
- Overseas Bank Accounts: The total balance of all your overseas accounts exceeds €50,000 on December 31st of the previous year, or the average balance in the last quarter exceeds this amount.
- Overseas Financial Products: The total value of overseas stocks, funds, bonds, insurance policies, and other financial assets you hold exceeds €50,000 on December 31st of the previous year.
- Overseas Real Estate: The total acquisition value of real estate (properties, land, etc.) you hold abroad exceeds €50,000.
If the total value of any single one of these three categories exceeds €50,000, you must declare all assets within that category, not just the amount exceeding the threshold. After the initial declaration, you must file again in subsequent years if the total value of that category increases by more than €20,000. So, filing Modelo 720 is not a one-time thing.
Key Information for Declaration
To make it clearer, I’ve created a simple table outlining the key information required for each asset category. You can use it as a reference when preparing your documents:
| Asset Category | Main Information to Declare |
| Bank Accounts | Bank name, address, IBAN/BIC, year-end balance, quarterly average balance |
| Securities/Stocks | Company name, ISIN code, number of shares, year-end value |
| Real Estate | Property address, acquisition date, acquisition value |
Finally, I must emphasize the consequences of non-compliance, as this is of utmost importance! If the Tax Agency discovers that you failed to declare, declared late, or made errors in your declaration, the fines are staggering. Previously, these fines were uncapped, and although they have been adjusted, they remain substantial, with minimum penalties in the thousands of euros. Furthermore, the Tax Agency will treat your undeclared assets as ‘unjustified capital gains’ for that year, forcing you to pay a high amount of personal income tax. So, don’t ever think you can get away with it just by keeping quiet. With the automatic exchange of global financial account information, it’s very easy for the tax authorities to investigate. I strongly recommend everyone to review their situation as soon as possible. If you’re unsure, it’s best to consult a reliable tax advisor. Spending a little money to avoid a huge problem is absolutely worth it!