The declaration of trusts in Spain is no longer optional. In this start of 2026, it is a critical obligation. If you are a tax resident here (or hold assets) and are a settlor or beneficiary of a foreign trust, you must be alert.
The era of “invisibility” for these structures is over. Therefore, we are seeing how the Tax Agency (AEAT) is applying a new doctrine. This is the doctrine of absolute fiscal transparency.
The critical problem is technical. Spain does not recognize the trust as a legal entity. Under local law, it “does not exist.” Previously, this created a legal gray area. However, now it has become a weapon for inspection.
Radical Fiscal Transparency: Piercing the Corporate Veil
The Tax Agency ignores the Trustee. It applies the “piercing of the corporate veil.” This has direct consequences for the obligation of declaration of trusts in Spain:
- Imputation of Ownership: The AEAT considers that the assets still belong to the Settlor (if revocable). Or, that they have already passed to the beneficiaries (if irrevocable).
- End of Tax Deferral: Trust income is imputed directly to your Personal Income Tax (IRPF). This happens even if you have not received a single euro. To understand the exact calculation of these taxes, consult our guide on the taxation of trusts.
- Criminal Risk: If the structure is instrumental in hiding the real owner, there is danger. The inspection does not hesitate to apply criminal consequences.
The Declaration of Trusts in Spain: Focus on Mallorca
Although the rule is national, the impact varies by the client’s origin. In the Balearic Islands, the inspection has focused on two key profiles.
US Citizens
This is the most explosive scenario. Many clients set up Irrevocable Trusts. Be careful. Spain can interpret this as an immediate donation.
Consequently, Gift Tax constitutes upon signing. This creates a total mismatch with tax credits in the US.
UK and DACH Zone (Switzerland/Liechtenstein)
For Discretionary Trusts, the Tax Agency considers that there has been no transmission. The assets remain in the Settlor’s wealth.
This is very common in Mallorca. From our division of tax advisory in Mallorca, we see many cases in Calvià or Andratx. Residents who do not declare these structures now face massive data cross-referencing.
The Danger of Model 720
The declaration of trusts in Spain crystallizes in Model 720. If you are a beneficial owner or a Settlor with control, you must declare the underlying assets.
If you do not, you face serious problems:
- The imputation of an unjustified capital gain in the General Tax Base.
- A penalty of 150% of the tax quota. This rule remains in force and is applied strictly in inspections.
Critical Scenarios (2025-2026)
| Type of Trust | Spanish Inspection View (2026) | Immediate Risk |
| Irrevocable Trust | Immediate inter-vivos gift. | Gift Tax + Beneficiary’s Income Tax. |
| Discretionary Trust | Total transparency. | Wealth Tax + Settlor’s Income Tax. |
| Trust upon Death | Direct inheritance. | Inheritance Tax. |
Technical Note: The DGT reiterates that the trust has no legal personality. This reinforces the thesis of going against the individuals behind it.
Strategic Advice: Urgent Audit
Do not assume your structure is valid in Spain. If you are a tax resident (or plan to be under the Beckham Law), act now.
First, we audit the Letter of Wishes. We must review if the trust is truly irrevocable under Spanish scrutiny.
Second, plan your entry. If you have not moved yet, dissolve the trust before becoming a tax resident. Once here, the cost of “undoing” the structure is prohibitive.
Resitax: Experts in Trusts and Taxation in Mallorca
The correct declaration of trusts in Spain requires experts. You need a partner who understands English Common Law and Spanish rigidity.
Are you worried your structure is vulnerable in 2026?
Contact Resitax here. We will perform a confidential “Stress Test” of your Trust Deed. Thus, we can quantify your tax contingency before the Administration acts.
