Mallorca has long attracted internationally mobile families seeking an exceptional quality of life in the Mediterranean. For those who arrive with significant cross-border wealth, the move raises a set of tax and legal questions that are frequently underestimated and, when handled carelessly, expensive to correct. Lullius is the only firm in Mallorca dedicated exclusively to Tax and Private Wealth for private clients, advising high-net-worth and ultra-high-net-worth individuals, international families, and globally mobile professionals.
The firm and its lawyers are recognised by Best Lawyers and ITR World Tax, hold active membership in Private Client Global Elite and the International Fiscal Association (IFA), and authored the Legal 500 Country Comparative Guide 2026: Spain – Tax Disputes. Over ninety per cent of the firm’s clients are international, reflecting both the scope of its practice and the trust it has earned among internationally mobile families choosing Mallorca as their home.
The Beckham Law: Genuine Opportunity, Strict Conditions
Spain’s Special Expatriate Tax Regime, established under Article 93 of the Personal Income Tax Law and universally known as the Beckham Law, remains one of the most compelling fiscal regimes available to internationally mobile individuals in Europe. Those who qualify are taxed as non-residents on their Spanish-source income for up to six consecutive tax years. In practice, this means that most foreign-source income, including dividends, capital gains, rental income, and distributions from overseas companies, falls outside the scope of Spanish personal income tax during the qualifying period.
The 2023 reforms introduced under the Start-Up Law materially widened the regime’s reach, reducing the minimum prior non-residence period from ten years to five and extending eligibility to remote workers, digital entrepreneurs, and highly qualified professionals. For a British executive relocating with a substantial investment portfolio, or an American entrepreneur retaining business interests in the United States, the financial significance of the regime is considerable.
Eligibility is nonetheless subject to strict conditions, and the application must be filed promptly following the establishment of Spanish tax residence. A procedural error, a mischaracterisation of employment status, or a profile the Agencia Tributaria subsequently decides to scrutinise can result in the loss of the regime entirely, with retrospective tax consequences.
In practice, the most common point of challenge is the question of where the taxpayer’s genuine economic interests are centred. The Agencia Tributaria examines the substance of the arrangements, not merely their form: the location from which income is genuinely generated, the nature of any directorships or corporate roles held in Spain, and the degree to which the taxpayer’s professional activity has in fact migrated to this jurisdiction. Lullius has successfully defended applications under inspection and overturned initial denials by constructing a precise factual record demonstrating that the client’s economic centre of gravity remained, in substance, outside Spain.
“The outcome turned on the quality of the documentary evidence assembled and the rigour of the legal argument presented to the authority.”
Cross-Border Wealth Structures: What Spain Sees
Internationally mobile families rarely arrive in Mallorca with a straightforward financial profile. Discretionary trusts settled in Jersey, family holding companies incorporated in the British Virgin Islands, limited partnerships registered in Delaware, SIPPs, ISAs, and portfolios held through UK wealth managers: each of these structures carries implications under Spanish tax law that require careful analysis before, not after, Spanish tax residence is established.
Spain does not recognise the trust as an independent legal entity. Where a Spanish resident is the settlor, protector, or beneficiary of a foreign trust, the Agencia Tributaria may look through the arrangement and attribute the underlying assets directly to the individual for the purposes of Spanish wealth tax and the Modelo 720 foreign asset declaration. The Modelo 720, which requires Spanish residents to declare overseas assets across three categories, continues to carry meaningful compliance obligations despite the penalty reforms that followed adverse rulings from the Court of Justice of the European Union.
“Pre-arrival restructuring is substantially simpler and less costly than post-arrival correction.”
US citizens and US persons face a further layer of complexity. The worldwide taxation regime of the Internal Revenue Service, the reporting obligations under FATCA, and the interaction of those frameworks with Spanish domestic law create a matrix of obligations that demands specialist cross-border counsel rather than sequential advice from advisers working in isolation. Lullius operates dedicated US and UK Desks for precisely this reason, working in close coordination with clients’ existing advisers in their home jurisdictions to ensure that obligations on both sides of the relevant border are met coherently and efficiently.
Tax Audits: How the Agencia Tributaria Operates
Spain’s tax enforcement environment is more sophisticated than many new arrivals appreciate. The Agencia Tributaria deploys advanced data analytics, systematic cross-referencing of third-party reporting data, and targeted audit programmes focused on high-value taxpayers, significant international transactions, and the use of offshore structures. The assumption that a complex cross-border profile will pass without scrutiny is not a sound basis for planning.
“How an audit is managed from the moment the first notice arrives materially influences the outcome.”
Audits can range from a limited desk-based review of specific line items to a full inspection involving on-site visits, examination of correspondence, and compulsory requests for detailed banking information. Where additional tax is determined to be due, administrative penalties range from 50% of the underpaid amount for minor infractions to 150% where fraudulent means are found to have been employed. In cases where the amount of evasion exceeds €120,000, the matter may be referred for criminal prosecution, with potential custodial sentences of up to five years and fines of up to six times the amount defrauded.
How an audit is managed from the moment the first notice arrives materially influences the outcome. Spanish law provides, at the audit stage, for a mechanism known as the “acta con acuerdo”: a negotiated resolution that binds both parties, avoids litigation, and carries a penalty reduction of up to 65%. It requires careful tactical judgement and is not appropriate in every case, but where circumstances permit it, it is frequently the most efficient path to resolution. For disputes that cannot be resolved at audit stage, collection of the disputed amount can generally be suspended pending appeal, and cases may be pursued through the Economic-Administrative Tribunals to the contentious-administrative courts and, if warranted, to the Supreme Court.
Lullius has represented clients at every level of this process, from the management of an opening audit notice through to proceedings before the National Court and the Supreme Court. Its experience spans the defence of Beckham Law applications under inspection, the recovery of significant VAT refunds in cross-border transactions, the challenge of penalty assessments, and the pursuit of appeals on matters of considerable financial and reputational consequence. As the author of the Legal 500 Tax Disputes guide for Spain, the firm contributes to the wider legal framework within which these disputes are resolved, bringing to each engagement both the practitioner’s command of the detail and the strategist’s view of the whole.
“Exceptional tax advice works quietly, precisely, and always in the interest of the person sitting across the table. We are selective in what we undertake and forthright about what we do not. This is not a limitation. It is the reason our advice carries the weight it does.”
Lullius advises a select number of private clients from its offices in Palma de Mallorca. As the only boutique firm on the island dedicated exclusively to Tax and Private Wealth, it brings to each engagement the technical depth of a global practice and the discretion that clients with complex affairs require. Those considering relocating to the Balearics or wishing to review an existing Spanish tax position are welcome to contact the firm directly at lullius.com.