UAE vs Portugal vs Italy: 2026 Tax Residency & Wealth Migration Guide

The Regime Shift: Mobility, Transparency, and Capital Allocation

The legal starting point changed on 6 April 2025. The UK's Finance Act 2025 replaced the remittance basis framework with a residence based foreign income and gains regime and introduced residence based inheritance tax rules. Broadly, eligible individuals can claim relief on qualifying foreign income and gains during their first four UK resident tax years after at least ten consecutive tax years of non UK residence. The inheritance tax analysis now turns principally on statutory long term UK residence, including a broad test of residence in at least 10 of the preceding 20 tax years, together with transition, trust and departure rules.

This comparison separates four questions that are often combined incorrectly: immigration permission, domestic tax residence, treaty residence and eligibility for a tax residence certificate. A permit does not by itself settle any of the other three. The decision therefore requires analysis of the operative instrument, the relevant cohort and the individual's facts.

UAE: Domestic Tax Residence and Golden Residency

The UAE does not currently impose a general federal personal income tax on an individual's salary or passive investment income. That statement is narrower than saying every receipt is tax free. Corporate tax rules can apply when a natural person conducts a taxable business, while source, residence, treaty and foreign jurisdiction rules require separate analysis.

UAE domestic tax residence is determined under Cabinet Resolution No. 85 of 2022, effective 1 March 2023, together with Ministerial Decision No. 27 of 2023. Under Article 4 of the Cabinet Resolution, a natural person can qualify through a usual or main residence and centre of financial and personal interests test, at least 183 days of presence in a relevant consecutive 12 month period, or a specified 90 day route. The 90 day route is limited to UAE or GCC nationals and valid UAE residence permit holders who also maintain a permanent home or practise a job or business in the UAE.

Article 5 allows a person satisfying the domestic residence provisions to apply to the Federal Tax Authority for a Tax Residence Certificate. Issuance is not automatic because the person holds an immigration permit. Article 6 separately preserves treaty residence conditions for treaty purposes. Ministerial Decision No. 27 of 2023 supplies implementation criteria for concepts including usual or primary residence, centre of financial and personal interests, permanent place of residence and day counting.

The ICP's current Golden Residency Guide describes renewable five or ten year residence for specified investor, entrepreneur, talent and other qualifying categories, without a sponsor. It lists AED 2 million for the public investment and real estate investor routes. The real estate route currently calls for a land registration letter showing property valued at at least AED 2 million without loans. These are immigration conditions, not a finding of domestic or treaty tax residence.

“Immigration permission, domestic tax residence, treaty residence and certificate eligibility are separate legal questions. A sound relocation analysis tests each one against its own authority.”

Portugal: Current ARI Routes and Transitional Cases

Portugal's ARI is an immigration regime and does not itself determine eligibility for a tax regime. The tax position and any transitional relief must be checked against the legislation applicable to the individual rather than inferred from an immigration permit.

Lei No. 56/2023, published on 6 October 2023 and generally effective from 7 October 2023, changed the investment residence framework in Lei No. 23/2007. Article 42 removed new property acquisition and rehabilitation investments and the former capital transfer route from the qualifying ARI categories. It also prevents a qualifying investment from being intended directly or indirectly for real estate investment. Article 43 preserves specified pending applications and renewals under transitional conditions, so the law did not cancel every existing property based ARI.

AIMA currently lists five routes: creation of at least 10 jobs; at least EUR 500,000 for qualifying scientific research; at least EUR 250,000 for qualifying artistic production or national cultural heritage; at least EUR 500,000 in units of qualifying non real estate collective investment undertakings with at least five year maturity and at least 60 per cent invested in Portugal based companies; and at least EUR 500,000 for forming or capitalising a Portuguese company with specified job creation or maintenance conditions. For qualifying activity in a low-density territory, the job, research and arts or heritage minimums can be reduced by 20 per cent, to eight jobs, EUR 400,000 and EUR 200,000 respectively. AIMA states minimum presence of at least seven days in the first year and at least 14 days in each subsequent two-year period. These ARI requirements do not determine Portuguese tax residence.

Italy: Article 24 Bis and the Cohort Rules

Italy's regime is contained in Article 24 bis of DPR 917/1986, introduced by Law 232/2016. It permits an eligible individual transferring tax residence to Italy to elect a fixed substitute tax on qualifying foreign income. The individual generally must not have been Italian tax resident for at least nine of the ten preceding tax periods. Italian source income remains within ordinary Italian rules, and the election can run for no more than 15 tax periods, subject to revocation and cessation rules.

The principal annual amount depends on the date Italian tax residence transfers:

Article 2 of Decree Law 113/2024, effective 10 August 2024 and converted by Law 143/2024, created the EUR 200,000 cohort. Article 1, paragraphs 25 and 26, of Law 199/2025 created the EUR 300,000 principal amount and EUR 50,000 family amount for transfers from 1 January 2026. The statutory cohort follows the transfer of tax residence, not visa arrival or the date an election is filed.

The substitute tax is not a cap on all Italian liability. It applies to qualifying foreign income, while Italian source income remains under ordinary rules. Foreign gains from substantial shareholdings during the initial statutory period require specific Article 24 bis analysis and should not be assumed to fall within the election. The tax election also does not confer immigration residence.

“The Article 24 bis election fixes the substitute tax on covered foreign income. It does not replace the separate analysis of Italian source income, excluded gains, immigration status or domestic residence.”

Feature by Feature Deep Comparison

1. Personal Tax Treatment The UAE has no general federal personal income tax on salary or passive investment income, subject to the qualifications above. Portugal's ordinary and special regime outcomes depend on the person's facts and applicable legislation. Italy's Article 24 bis amount follows the tax residence transfer cohort: EUR 100,000 before 10 August 2024, EUR 200,000 from 10 August 2024 through 31 December 2025, and EUR 300,000 from 1 January 2026. None of these propositions determines treaty residence or tax exposure in another jurisdiction.

2. Foreign Income and Gains Italy's election concerns qualifying foreign income rather than all liability, and the treatment of substantial shareholding gains during the initial statutory period needs specific analysis. The authorities reviewed for this article do not establish a universal Portuguese capital gains rate for every asset and taxpayer, or a universal UAE exemption for every activity and receipt. Those outcomes remain unknown until the asset, source, business activity, residence and treaty facts are established.

3. Immigration and Physical Presence The ICP Golden Residency framework offers several route specific categories. Its current public investment and real estate investor guidance uses AED 2 million, but neither route automatically creates UAE tax residence. Portugal's ARI categories and minimum presence requirements are published by AIMA, but an ARI does not itself create Portuguese tax residence. Current primary authority for an Italian immigration income threshold was not established in this review, so no such amount is stated. Italy's Article 24 bis election remains separate from immigration eligibility.

4. Tax Residence and Certification For the UAE, CR 85/2022 provides three domestic routes for a natural person, while treaty residence and an FTA certificate are separate questions. Portugal and Italy apply their own domestic residence rules, which must be tested independently of permit renewal conditions. Claims about banking access, account opening speed or unrestricted capital movement are also outside the tax and immigration authorities reviewed here and are not used as selection criteria.

5. Succession and Family Position Residence planning must include succession and family governance, but the instruments reviewed here do not establish broad claims of unrestricted UAE transfer, Portuguese forced heirship outcomes for every cross border estate, or a complete Italian succession tax result. Those questions remain unknown without dedicated analysis of the applicable succession law, asset location, family relationships, elections and treaty position.

Strategic Allocation Summary

The defensible 2026 comparison is narrower than a headline tax rate. The UAE offers immigration routes and distinct domestic residence tests. Portugal retains specified non property ARI routes and protects certain pending and renewal cases. Italy offers an elective substitute tax whose amount depends on the date tax residence transfers. A decision should map immigration, domestic residence, treaty residence, certificate evidence and the tax treatment of each income and asset class separately.

Primary Authorities Checked to 25 August 2026

United Kingdom: Finance Act 2025, Part 2 and Schedules, including Schedule 13, effective for the relevant reforms from 6 April 2025.

UAE: Cabinet Resolution No. 85 of 2022, especially Articles 4 to 6 and 9, supplemented by Ministerial Decision No. 27 of 2023. Golden Residency eligibility follows the current ICP Golden Residency Guide.

Portugal: Lei No. 56/2023, Articles 42 and 43; Lei No. 23/2007, Article 90 A as amended; and current AIMA ARI guidance.

Italy: DPR 917/1986, Article 24 bis; Law 232/2016; Decree Law 113/2024, Article 2, converted by Law 143/2024; and Law 199/2025, Article 1, paragraphs 25 and 26.