After London — Italy's Flat Tax and the Reshaping of European Wealth Geography

After London — Italy's Flat Tax and the Reshaping of European Wealth Geography

On 30 December 2025, with the quiet administrative efficiency that characterises Italian fiscal legislation at its best, the 2026 Budget Law was approved. Buried inside it was a single amendment to Article 24-bis of the TUIR: the annual substitute tax for new residents would rise from €200,000 to €300,000, effective for elections from 1 January 2026. The supplementary charge for each qualifying family member would double, from €25,000 to €50,000.

The instinctive reading — that the price had gone up, therefore the regime had become less attractive — misses the argument entirely. Italy has now raised the flat tax twice in less than two years. The first increase, from €100,000 to €200,000, came via the Omnibus Decree of August 2024. The second arrived sixteen months later. Prices do not rise twice in succession on products that are struggling to sell.

The structural argument is straightforward: Italy raised the price because the alternatives had closed, thinned, or complicated themselves into irrelevance. The regime is not tightening. It is repricing into a gap that is, for the moment, genuinely its own.

The Map Has Redrawn Itself

Begin with London, because London is where the story starts. The UK non-domicile regime — in various forms a feature of British tax life since the nineteenth century — was formally abolished as of 6 April 2025. The replacement offers a four-year window of foreign-income relief for new arrivals. Four years against Italy's fifteen is not a comparison; it is a category difference. The Henley Private Wealth Migration Report 2025 estimated net UK HNWI outflows of more than 16,000 individuals in a single year following the announcement of abolition. That figure, if it holds on verification, is not a trickle. It is a structural displacement.

The honest version of this story, though, is that Italy captures a share of that flow — not the share. The geography of European wealth relocation has fragmented, and several jurisdictions were competing for the same population. What matters for Italy's position is what happened to the others.

Portugal's Non-Habitual Resident regime closed to new applicants in 2024. Its replacement, the IFICI — the Incentivo Fiscal à Investigação Científica e Inovação — is restricted to qualifying professional activities and is materially less favourable to the passive-income recipients who formed the core of the NHR's constituency. A retired industrialist managing a diversified portfolio from Lisbon was precisely the profile NHR was built for. IFICI was not built for that profile.

Switzerland's lump-sum taxation regime, the forfait, remains available but has been under sustained political and cantonal pressure. Several cantons have abolished it outright. The residual offering varies by canton, lacks the federal-level certainty that Italy's statutory framework provides, and requires negotiation rather than election.

Dubai introduced a corporate tax framework in 2023. The personal tax position for individuals remains different, but the narrative of zero-tax simplicity has acquired asterisks. For UHNWI families with operating businesses and complex structures, those asterisks matter.

What the competitive map now shows is a European tier in which Italy's regime stands alone in combining a published statutory basis, a fifteen-year horizon, a grandfathering mechanism that protects every existing applicant at the rate they entered, and a host city with genuine operational depth. The €300,000 is not the cheapest entry point on the map. It does not need to be.

Why Milan, Not Elsewhere

There is a version of this story that would be written from a Tuscan hillside, or from a terrace above Lake Como — and that version would be charming and largely beside the point. The wealth migration that Article 24-bis is capturing is not primarily lifestyle migration. It is operational migration: families and individuals who need to run multi-jurisdictional structures from somewhere, and for whom somewhere must function.

Milan functions. It is the only Italian city where a UHNWI client can assemble a full-service family office without material compromise — private banking infrastructure, international legal advisory, Big Four and specialist tax practices fluent in cross-border structures, international schools operating at the level that families accustomed to London or Geneva expect. Rome has culture and government; it does not have the density of financial and legal services that complex wealth management requires. Florence and the lake towns offer quality of life at the cost of professional infrastructure.

Milan's emergence as the operational centre of this migration is not accidental. It is the product of a decade of quiet institutional deepening — the arrival of international law firms, the expansion of private wealth desks at the major Italian banks, the growth of a professional class that speaks the language of OECD CRS compliance, trust law, and family governance. The city that gave the world the aperitivo has, less glamorously but more consequentially, become a city where a family office can function at European scale.

The Arithmetic, Honestly

The regime works as follows. An individual electing into Article 24-bis pays a flat €300,000 per year as a substitute for Italian tax on all foreign-source income and capital gains, regardless of quantum. Italian-source income remains subject to ordinary IRPEF. The election is available for a maximum of fifteen tax years. To qualify, the applicant must not have been Italian tax resident in at least nine of the ten preceding years. The election is made via the annual tax return or, more prudently for complex situations, via advance ruling — the interpello — with the Italian Revenue Agency.

Grandfathering is absolute. Anyone who elected in under the original €100,000 regime continues at €100,000 for the remainder of their fifteen years. Anyone who elected between August 2024 and December 2025 at €200,000 continues at €200,000. The increase applies only to new elections from 1 January 2026.

A family of four — the applicant and three qualifying family members — now faces an annual bill of €450,000: €300,000 for the principal plus €50,000 for each of the three additional members. That is the number to hold in mind when assessing competitiveness, and it should be held alongside the comparator: what ordinary progressive IRPEF, at a top effective rate of roughly 45% including regional and municipal surcharges, would cost on the same foreign income.

The breakeven is approximately the point at which ordinary IRPEF would exceed €300,000 — which, at a 45% effective rate, implies foreign income somewhere above €700,000 to €800,000, depending on income composition, treaty offsets foregone, and whether the income is ordinary or capital in nature. This is an approximation, not a calculation; the actual breakeven for any individual is an advisor question, not a published figure. But the order of magnitude is instructive. The regime is not designed for the upper-affluent. It is designed for people for whom €300,000 is a rounding consideration relative to the underlying exposure.

Two categories of applicant require specific attention. US citizens remain subject to US federal taxation on worldwide income regardless of where they reside. The Italian flat tax changes the Italian side of the equation only; it does not alter the IRS's claim. The foreign tax credit interaction is non-trivial, and any US-citizen applicant requires coordinated advisory across both jurisdictions. The Italian side of that equation is solvable. The US side is a separate question.

The second caveat concerns capital gains on qualified shareholdings arising within the first five years of residency. Revenue Agency rulings — including ruling no. 83/2022 and ruling no. 397/2022 — have clarified that such gains fall outside the regime and are subject to ordinary Italian taxation. For anyone arriving with a near-term liquidity event in view, the timing of that event relative to the election date is a material structuring question.

What Comes Next

The question an advisor should be sitting with now is not whether €300,000 is expensive. Relative to the alternatives, it is not. The question is whether Italy has found its pricing ceiling, or whether a third increase is possible without damaging the demand that has justified the first two.

The grandfathering mechanism is the regime's most elegant design feature, and it is the reason a third increase would not necessarily deter existing applicants or candidates already in the pipeline. But there is a level at which the arithmetic tips — where even substantial foreign income produces a better outcome under ordinary treaty-protected rates than under the substitute tax. That level is not €300,000. Whether it is €400,000 or €500,000 is a question for the next budget cycle.

What the 2026 increase tells an advisor today is that the Italian government has read the same competitive map that its applicants have read, and has drawn the same conclusion: for the moment, there is no obvious alternative of equivalent depth. That is a durable observation about the current landscape. It is not a permanent one. Regimes evolve, political pressures shift, and the forfait cantons that closed may reopen. The fifteen-year clock that starts on election day is, in part, a hedge against exactly that uncertainty.

Italy did not design Article 24-bis to be the cheapest option on the table. It designed it to be the most complete — statutory, transparent, long-duration, and anchored in a city that can actually support the lives of the people it is trying to attract. The price went up because that proposition held. That is the story of 30 December 2025, and it is worth reading carefully.