It’s that time of year again—the dreaded tax season. I’ve noticed more people on the forums asking about Modelo 720 recently. As it happens, I just dealt with this a couple of years ago, hit some pitfalls, and learned a few things along the way. So today, I’m starting this thread to talk about this ‘overseas asset declaration’ and hope it can help those in need.
What is Modelo 720?
Simply put, Modelo 720 is an informative declaration that Spanish tax residents use to report their assets located outside of Spain to the tax authorities. The key point is that it’s not a tax payment form itself, but a ‘reporting’ form. Its purpose is to let the tax agency know about your foreign assets, but the [overseas asset declaration] itself doesn’t directly lead to taxes. The filing period is from January 1st to March 31st each year, covering the assets from the previous year.
Who needs to file?
First, you must be a tax resident of Spain. If you only hold a residence permit but do not live in Spain for more than 183 days a year, you are not considered a tax resident and therefore do not need to file. For most of us who have been living, working, or running businesses in Spain long-term, we are considered tax residents.
Your overseas assets must reach a certain ‘threshold.’ This declaration is categorized, mainly into three groups: foreign bank accounts, securities, and real estate. You only need to file if the total value of assets in any single category exceeds €50,000. Note that each category is calculated separately. For example, if you have property in China worth €40,000 and savings worth €40,000, neither category reaches the €50,000 threshold, so you don’t need to report either.

Declaration Content and Common Questions
The filing process itself isn’t complicated, but you need to have all the information ready. For real estate, in particular, you’ll need to provide details like the full address, purchase date, and purchase price. I’ve compiled some of the most frequently asked questions into a table for a clear overview:
| Common Question | Answer/Explanation |
| How to report a jointly owned property with a spouse? | If a property is valued at €100,000 and a couple owns it 50/50, each person’s share is €50,000. Since this does not exceed is exactly at the threshold, they theoretically don’t need to file. However, if an overseas property investment is worth more than €100,000, say €120,000, then each person’s share is €60,000, and they must each declare their own share. |
| Does filing mean I have to pay taxes? | To reiterate, filing is not the same as paying taxes. However, any future income generated by these declared assets must be included in your global income when you file your personal income tax return. |
| After the first filing, do I have to file every year? | Not necessarily. You only need to file again if the total value of an asset category has increased by more than €20,000 since the last declaration, if you have sold a previously declared asset, or if you acquired a new foreign asset. |
| What happens if I don’t file? | Don’t take this lightly! The penalties for Modelo 720 are terrifying, among the strictest in the Spanish tax system. Omissions, errors, or late submissions can all lead to substantial fines related to Modelo 720, with minimum penalties starting at several thousand euros. The tax agency has a 5-year period to investigate, so don’t try your luck. |
For those of us in the Chinese community with family roots and assets back home, Modelo 720 is an unavoidable topic. Although it seems complicated, it’s not so scary once you understand the rules, prepare your documents in advance, and find a reliable Gestor to handle it. Don’t ignore it just to save a little trouble, or it will be much more costly if the tax authorities find out. I hope my sharing has been helpful! Feel free to post any questions or comments below.