Articles

Modelo 347 in Spain. A key tax reporting tool for detecting siscrepancies and undeclared activity in 2025

In Spain, businesses and self-employed individuals must comply with a range of tax reporting obligations, among which Form 347 (in Spanish known as Modelo 347) stands out as a key instrument for fiscal control. Far from being a mere administrative formality, this annual informative declaration allows the Spanish Tax Office (Agencia Tributaria) to detect inconsistencies, cross-check transactions between companies, and combat undeclared economic activity. For 2025, the form includes a notable update, making an understanding of its requirements more essential than ever.

Calling all Dutch investment savers: Spanish taxation offers significant advantages

Recent discussions in the Netherlands about changes to the taxation of private investments have raised concerns among long-term savers. While no final legislation has yet been enacted, the direction of the proposed reform is clear enough to merit attention. One country that often enters that conversation is Spain, not merely for lifestyle reasons, but for … Read more

Intergenerational Equity Mechanism and Solidarity Contribution in Spain 2026: What Employers and Employees Need to Know

Introduction As part of Spain’s ongoing pension reform, the government introduced in 2023 additional Social Security contributions aimed at reinforcing the long-term sustainability of the public pension system. Two key instruments in this strategy are the Intergenerational Equity Mechanism (MEI) and the Solidarity Contribution, both of which have a direct impact on payroll costs and … Read more

FROM 2026 NEW DECLARATIONS TO BE FILED TO THE TAX OFFICE BY FINANCIAL ENTITIES: M196 & M170

Starting in 2026, the Spanish Tax Office will enforce updated financial reporting obligations. These changes affect all self-employed individuals and businesses and will also impact banks and payment entities. The objective of the reform (Order HAC/747/2025 and Royal Decree 253/2025) is to provide more timely and detailed financial information, improving transparency, monitoring, and the ability … Read more

Tax CHANGES in Spain for 2026: WHAT taxpayers should know

Spain enters 2026 without any major structural tax reform, but with a series of practical adjustments affecting employees, freelancers, landlords and companies. While some measures have attracted headlines, others have gone largely unnoticed despite having real consequences. The main challenge for taxpayers is distinguishing between confirmed legal changes and political announcements that have not yet … Read more

Renting out a room: can you apply the 50% reduction in your Spanish Income Tax?

Renting out part of a property has become increasingly common in recent years. Many homeowners choose to let individual rooms, or even their entire property divided into separate rooms, as a way to share housing costs or make better use of their assets. What is less widely known is that, under certain conditions, these arrangements … Read more

Youth Take Centre Stage in Spain’s Social Security

Spain has recorded a historic high in overall Social Security affiliation, with the number of contributors reaching new all‑time peaks in mid‑2025. In July 2025, total affiliation reached around 21.86 million contributors, the highest figure on record in the series available. These figures also reflect significant growth in the number of young workers under 30 … Read more

2 Tax deadline reminders
Important deadline

Have You Prepared Your Personal Tax Declarations?

The Income Tax and Wealth Tax Declaration campaign is now underway. All tax residents of Spain are reminded that Income and Wealth Tax Declarations must be filed no later than 30 June.

In addition, Great Fortunes Tax Declarations must be submitted by 31 July.

Please contact us if you would like assistance, as we can prepare and file the declarations on your behalf.

Important deadline

Have You Prepared Your Corporation Tax Declaration?

Companies in Spain are reminded that Corporation Tax Declarations must be filed by 25 July.

Submitting the declaration within the official deadline is important to remain compliant with Spanish tax regulations.

We are available to assist with the preparation, review, and filing of your Corporation Tax Declaration.

All reminders have been dismissed.