Wealth Tax Form 718 Update: What Changes

The fiscal routine of those living in Spain has just received an important update. On June 29, 2026, the Official State Gazette (BOE) published Orden HAC/652/2026, which modifies the guidelines for the Temporary Solidarity Tax on Large Fortunes, specifically concerning Modelo 718.

This change, signed by Minister of Finance Arcadi España García, comes into effect tomorrow, July 1, 2026. If you have significant assets in Spain and need to declare this tax, it is crucial to understand the practical changes to avoid issues with the Tax Agency.

What has changed in Modelo 718?

The new regulation modifies Annex HFP/587/2023, which originally regulated the tax. In practice, the main change is an update to the design of the model and its submission document. The Spanish government's goal with this modification is to align the filing procedures and official form with current fiscal requirements, ensuring that the electronic declaration system works correctly.

Deadlines and Practical Application

If you fall into the category of taxpayers required to submit Modelo 718, pay attention to the calendar. The new order will be applied for the first time for the tax year 2025 declaration.

The deadline for electronic submission begins on July 1, 2026, as established by the regulations. According to current rules, the general period for filing and setting up payment of this form is from July 1st to July 26th. Since the regulation comes into effect immediately after its publication, the entire process of filling out and submitting Form 718 must follow the new parameters set by the Ministry of Finance.

How to Proceed with Your Declaration

As the change directly impacts the completion of the form, it is recommended to check if your tax aid software or the electronic portal of the Tax Agency is already operating with the updated version of the model.

If you have doubts about your obligation to declare this tax, remember to consult the current legislation in the BOE (Official State Gazette). For specific questions regarding your assets and the application of the tax, it is always advisable to seek support from a fiscal manager or tax lawyer who understands the peculiarities of taxation for Brazilian residents in Spain.

The filing period is short, ending on July 26. Organizing necessary documentation in advance is the best way to avoid complications with Spanish tax authorities during this month. Stay alert to official communications and do not leave submissions until the last minute, especially considering that this is the first time the modified model will be required.