Will Juan Carlos I return to reside his final years in Spain?
Zarzuela sources answer a call from this journalist with caution. They are aware of the significance that an eventual return of the emeritus king would have and want the position of the Royal Household to be clear, without ambiguities: if he returns, he must recover his tax residence in Spain. The decision to return —they underline— “depends exclusively on him”.
Neither Zarzuela, that is, his son Felipe VI, nor the Government that supports the current head of State, nor Hacienda —which officially we are all, although no one is asked— formally oppose. But the return would not be neutral: it would imply assuming the exemplary conduct that for years he was reproached for not having maintained. Like any citizen.
The debate was reactivated after the declassification of the 23F archives. The Partido Popular described the initiative as a “smokescreen”, while its leader, Alberto Núñez Feijóo, defended that none of “his errors” can “hide a legacy like his own”, in allusion to the role played by the monarch during the 1981 coup attempt.
But the return does not depend on the discursive framework that politics wants to build. It depends on money. And on taxes.
In the summer of 2020, when the emeritus packed his bags and left the country, he faced a clear dilemma: Spain or his patrimony. Then he chose the latter. That move was not only geographical. Shortly after, he carried out two tax regularizations before the Tax Agency: one for more than 600,000 euros corresponding to undeclared donations from a Mexican businessman friend of his, and another for 4.4 million euros linked to trips paid for by third parties that had also not been declared.
Six years later, the equation is raised again in similar terms.
Does it pay off to return? Hacienda has a good part of the answer.
From the tax haven to the Spanish register
Staying more than 183 days in Spanish territory during a calendar year turns a person into a tax resident. That implies taxing on worldwide income, as stated in the regulations of the Tax Agency.
The legal framework is clear: any income received anywhere in the world must be declared in Spain. Consulted tax inspectors recall that the obligation extends to the so-called “general income”, without exception by geographical origin.
Without paradise, with IRPF
Unlike Abu Dabi, where he established his residence and where there is no personal income tax like the Spanish one, he should declare all income obtained outside and inside the country.
The experts from the Registry of Tax Advisors insist that the key is not where the income is generated, but where one resides fiscally. If you return and exceed the legal threshold, the obligation would be full.
The fiscal paradox of the king without fortune: the Wealth Tax
Here may be the main point of friction.
The Wealth Tax is state-owned, although it is transferred to the autonomous communities. Madrid and Andalusia have it practically 100% rebated, but not even that tax gap would represent a real alternative.
There is the Temporary Solidarity Tax on Large Fortunes, approved by the central Government and designed precisely to avoid downward tax competition between territories. This tax acts as a corrective mechanism when wealth exceeds certain thresholds.
It is worth remembering that Juan Carlos I has repeatedly denied the existence of hidden wealth abroad, despite the investigations by the Prosecutor's Office and the information published about his finances in jurisdictions considered tax havens. A return with recovery of tax residency would force him to put his real assets in black and white. If previously undeclared assets were to surface, the public debate would not only reopen: it would become a new crisis for the institution currently headed by Felipe VI, by revealing contradictions difficult to sustain and reactivating the questioning of the Crown's exemplary nature.
Real sponsorship, tax bill: the Inheritance and Gift Tax
Without public allocation —Felipe VI withdrew his annual allowance of around 200,000 euros— the emeritus could receive donations from third parties. But these transfers are not fiscally neutral.
Treasury Inspectors explain that, as a general rule, the rate starts from a minimum around 7%-8% and increases depending on the degree of kinship and the recipient's pre-existing assets. That is to say, the greater the declared assets, the greater the tax burden can be.
The conclusion is simple: the return is not just a personal or political decision. It is, above all, an economic decision.
And that is the variable that, historically, has tipped the balance.