Spain corrects large fortunes tax: key change for non-residents

The Government has amended the Solidarity Tax on Large Fortunes to eliminate fiscal discrimination against non-residents. The change applies from the 2025 tax year.

Published on 2026-03-26 · GTM Team

The Government has made a move on one of the most controversial taxes in recent years: the Solidarity Tax on Large Fortunes.

And it did so out of obligation, not choice.

⚖️ What exactly happened

The Spanish Tax Authority had to amend this tax to eliminate the fiscal discrimination affecting non-residents.

Until now, non-resident taxpayers could not apply the so-called tax cap, a mechanism that prevents the total tax burden from being disproportionate to income.

👉 Result: they paid more than a resident in the same situation.

That will no longer be the case.

💸 What changes in practice

With this correction:

And most importantly:

👉 it will already apply to the 2025 tax year (filed in 2026)

🧠 The important part (that few people see)

This change is not minor.

It directly affects:

And it sends a clear message:

👉 Spain corrects… but always after the problem

⚠️ Watch out

Let no one be confused:

📊 What this means for tax planning

This type of change reinforces a key idea:

👉 International taxation is no longer stable

Today they apply one rule, tomorrow they correct it, and the day after they change it again.

And if you have wealth or international structures, this affects you directly.

📌 Conclusion

The adjustment to the large fortunes tax is not just a technical change.

It is a clear signal of where the tax system is heading:

And in that context, the greatest risk is not paying more…

👉 it's not understanding how the rules are being applied to you.

Sources