Argentina Tax Residency for UK Citizens: ARCA Rules and the UK Position

British citizens moving to Argentina need three separate assessments: Argentine residence under domestic law, UK residence under the Statutory Residence Test, and treaty residence if both systems treat them as resident. Citizenship, immigration status and tax residence overlap, but one does not automatically settle the others.

Argentina's current residence provisions are in the updated Income Tax Law approved by Decreto 824/2019, especially Articles 116 to 123. The implementing rules are in Decreto 862/2019. ARCA administers these rules.

How a UK Citizen Becomes Argentine Tax Resident

For a foreign national, Article 116(b) provides two principal routes:

• Obtaining permanent residence in Argentina under immigration law.
• Remaining in Argentina under temporary authorisations for 12 months.

Under the second route, tax residence takes effect on the first day of the month immediately following completion of the 12-month period. This is a continuous statutory period, not a 183-day calendar-year test.

Regulatory Article 281 says temporary absences not exceeding 90 days, consecutive or otherwise, within each 12-month period do not interrupt continuity. A person can prove that a longer absence did not break residence if Argentina remained the place of habitual stay. This evidence-based exception should be reviewed against the person's travel and living arrangements.

Article 123 excludes certain foreign nationals from residence, including qualifying people in Argentina solely for diplomatic or consular duties and some individuals whose authorised stay is for employment or study for no more than five years, subject to the statutory conditions. Anyone relying on an exception should check the exact legal category rather than infer the result from a visa label.

Immigration Permission and the 12-Month Rule

Temporary or transitory immigration permission does not create immediate tax residence. The domestic question is whether the person has permanent residence or has completed the statutory 12-month period under temporary authorisations, allowing for the regulatory absence rule.

Keep a travel schedule showing entries, exits and the purpose of longer absences, along with passports, immigration records, tickets, leases and documents showing where you habitually stayed. These records help establish when the period began, whether an absence interrupted it and when residence took effect.

An Argentine DNI can support identification and immigration evidence, but the residence analysis still comes from the statutory provisions. A digital-nomad permission likewise provides no separate exemption from income-tax residence.

Nationality and Loss of Argentine Residence

Argentine nationals are generally residents under Article 116(a). Article 117 provides two routes for losing Argentine residence: acquiring permanent residence in another state under its migration law or, if that has not occurred first, remaining continuously abroad for 12 months. Temporary visits to Argentina within the regulatory limits do not necessarily interrupt the period abroad.

Loss takes effect on the first day of the month immediately following the relevant event. Under Article 119, evidence is submitted to ARCA where the person was registered before departure or to the Argentine consulate where the person is abroad, according to the circumstances in the law.

The current law also provides that someone acquiring Argentine nationality through a qualifying investment-naturalisation regime does not become tax resident merely because of that naturalisation. This will rarely determine a British mover's position, but matters when stating the full statutory framework.

Economic Ties and Dual Residence

A centre of vital interests test is not a general domestic route by which every new foreign mover becomes Argentine resident. Article 122 concerns the narrower case of a person who obtained permanent residence abroad or lost Argentine residence, is treated as resident by another country, and continues living in Argentina or re-enters intending to remain.

In that domestic dual-residence sequence, permanent home comes first. If the person has a permanent home in both states, Article 122 considers the centre of vital interests, meaning the location of the person's closest personal and economic relations. Habitual abode and nationality come later.

The treaty has a separate test. Article 4 of the UK-Argentina Convention's synthesised text applies only when domestic law has made the individual resident of both countries. Its tie-breaker considers permanent home, centre of vital interests, habitual abode and nationality, followed where necessary by agreement between the authorities. Treaty residence allocates treaty benefits. It does not automatically erase domestic filing questions.

The UK Position

The UK uses tax years and the SRT, including automatic overseas tests, automatic UK tests and sufficient ties. A move can produce Argentine residence from one monthly effective date and a different UK result for the tax year. Split-year treatment may apply in specified UK cases, but is not automatic.

Before leaving, record UK midnights, workdays, accommodation and family ties. If you do not usually file Self Assessment, HMRC's leaving the UK guidance directs you to form P85. If you usually file, report departure through the return and complete SA109, sending it by post or using compatible commercial software. HMRC also requires P85 in the separate situation described in its guidance where someone will work full-time abroad for a UK-based employer for at least one full tax year. See the P85 guide before choosing the route.

The Residence Certificate Process

ARCA's fiscal residence certificate service is free, accessed with a clave fiscal and may establish Argentine residence for treaty purposes abroad. The application has the character of a sworn declaration.

If ARCA requests documents or clarifications, the applicant has 15 calendar days to provide them. A submission may also be accepted with an observation. The applicant then has 10 calendar days from the day immediately following acceptance to present the requested material to the relevant office. An accepted submission can still require follow-up. Rejected submissions identify inconsistencies for correction before a new request.

The certificate is evidence for a defined period and purpose. Eligibility still depends on the underlying residence rules.

UK-Argentina Treaty Relief

The 1996 UK-Argentina Convention, read with the MLI synthesised text, allocates taxing rights by income category and provides credit relief. It does not exempt all UK-source income once someone lives in Argentina.

If an Argentine treaty resident receives income the Convention allows the UK to tax, Article 23(2) generally requires Argentina, as residence state, to allow a credit for UK income tax, limited to the Argentine tax attributable to that income. Conversely, Article 23(1) provides UK credit relief for qualifying Argentine tax on profits, income or gains from Argentine sources, within its terms and domestic limitations.

Check relief by category. Pensions, employment income, dividends, property income and gains have distinct treaty articles. Exchange rates, timing differences and credit limits can leave tax payable despite an available credit.

UK Rental Property

UK rental profits remain subject to UK taxation after a landlord becomes non-resident. Under the Non-Resident Landlord Scheme, a letting agent generally deducts basic-rate tax unless HMRC approves gross payment. Without a letting agent, a tenant deducts only if rent paid to the non-resident landlord exceeds £100 per week. Gross-payment approval changes withholding, not the duty to report taxable rental profit.

For an Argentine treaty resident, the UK may tax income from UK immovable property. Argentina may also include it under its residence rules and generally provides treaty credit for qualifying UK tax within Article 23 limits. Keep UK computations, withholding certificates and proof of payment. The banking guide covers account logistics separately from tax reporting.

Employment and Remote Work

Salary analysis starts with where employment is physically exercised, then applies Article 15 and its conditions. A UK payroll, UK bank account or digital-nomad permission does not determine the treaty result. Remote work may also create separate payroll, social-security or employer-presence questions.

Track workdays by country, employer details, recharge arrangements and who bears the remuneration. As the Argentine 12-month residence route approaches, obtain advice on registration, worldwide-income reporting and withholding before the effective date.

Capital Gains

Article 13 must be applied by asset category. Gains from immovable property may be taxed where it is situated. Gains connected with a permanent establishment or fixed base may be taxed where that establishment or base is located. The Convention also has rules for ships and aircraft and for shares deriving their value principally from immovable property.

Article 13(6) allows the other state to tax gains from property situated there that is not covered by the preceding paragraphs, subject to limits for certain share gains. Exclusive residence-state taxation under Article 13(7) is the residual rule for property outside paragraphs (1) to (6), not a general rule for all movable property.

A Practical File for Both Authorities

Keep one residence file containing:

1. A dated travel and workday calendar for Argentina, the UK and third countries.
2. Immigration permissions and evidence of when permanent residence was granted.
3. Evidence concerning any absence approaching or exceeding 90 days.
4. UK SRT calculations, P85 or SA109 records, and HMRC correspondence.
5. Argentine registrations, returns, payment receipts and residence certificates.
6. Income schedules separated by source and supported by tax-payment evidence.

Not tax advice. Residence, treaty and filing outcomes depend on the individual's facts and dates. Confirm the current position with qualified UK and Argentine cross-border tax advisers.

Professional cross-border advice is particularly useful when domestic residence overlaps, treaty tie-breakers may apply, UK property is retained, employment spans both countries, or foreign tax credits and gains require calculation. Advice should address the relevant dates, income categories and filing duties rather than rely on a single residence label.