Argentina Tax Residency Rules for UK Citizens

A Briton who moves to Argentina can become tax resident on receiving permanent immigration residence or after 12 months of qualifying temporary stay. On the 12-month route, residence begins on the first day of the following month. Short trips abroad totalling no more than 90 days during that period ordinarily leave the count intact. From the effective date, Argentina's tax rules reach worldwide income and assets, including those still in Britain.

That is why 183 days is an unreliable shorthand for a move. The UK tax year can overlap with the first Argentine resident year, and an Argentine immigration grant, a UK departure and the start of Argentine tax residence may each have a different date.

The date depends on immigration status and stay

Migraciones grants temporary or permanent immigration residence; ARCA, formerly AFIP, administers tax residence and returns. Articles 116–123 of the Income Tax Law set out the foreign-national rules, with short-absence provisions in Article 281 of the implementing regulation. A DNI (identity card), CUIT (tax number), Argentine bank account or Argentine spouse does not by itself start worldwide taxation. A British passport does not prevent it either.

Permanent immigration residence is an express route into Argentine tax residence, so the grant decision matters. Someone on qualifying temporary permission instead completes the continuous 12 months before residence takes effect the following month. A 90-day visa-free visit alone meets neither condition, although Argentine-source rent or work income may still attract Argentine tax. Temporary rentista residence, based on income from assets, and pensionado residence, based on a pension, are typically issued for one renewable year; permanent immigration residence is normally available after three years of temporary residence, considerably later than tax residence may start. Renewal of a permit does not start the tax clock afresh.

A digital nomad permit runs for 180 days and can be renewed once. Its immigration classification is transitory, so its treatment under the domestic rule for temporary authorisation needs individual attention, especially when visitor days precede it. A permit in itself is neither a tax exemption nor a tax-residence finding. The Migraciones entry record, dates of each grant and any gaps in permission provide the useful timeline; UK tax in the year you move covers the other side of it.

Why a trip to Britain may leave the clock running

The 90-day allowance is cumulative across the relevant 12 months, rather than an allowance for each journey. London visits, a week in Uruguay and other travel all use it. A longer absence can still leave the stay uninterrupted if evidence shows Argentina remained the person's habitual place of stay; retaining a lease alone may not settle that question. Passport movements, Migraciones records, bookings and evidence of a home establish what happened.

Take a retiree whose qualifying temporary residence starts on 10 March 2026. A 21-day London visit in July, 14 days there at Christmas and seven days in Montevideo add up to 42 days away. If their permission and qualifying stay continue through 9 March 2027, tax residence under the ordinary 12-month rule starts on 1 April 2027. Neither their first bank transfer nor day 183 establishes that date. With 110 days abroad, whether Argentina remained the habitual place of stay becomes a factual question.

Article 123 provides exceptions for diplomatic and consular personnel and certain foreign workers and students staying no more than five years. Those exceptions have conditions tied to the type and intended length of stay: student enrolment or a remote-work permit alone does not establish one. Tax on Argentine-source income can arise before tax residence.

What worldwide taxation brings into view

Before residence, Argentine-source income is generally the main exposure under non-resident rules. Once resident, Ganancias (income tax) can cover UK employment or self-employment income, pensions, property rent, interest and dividends. Leaving receipts in a British bank account or receiving them in pounds does not remove them from the calculation. The treaty can assign taxing rights over a particular item and a foreign tax credit can relieve double taxation.

Bienes Personales (personal assets tax) can include property and other assets in Argentina and overseas, subject to exemptions, valuations and the year's threshold. ARCA published a fiscal-year 2025 threshold of ARS 384,728,044.57 of taxable assets at 31 December 2025. At an approximate official rate of ARS 1,545 per US dollar in September 2026, that is about US$249,000, purely an illustration: statutory valuations and the threshold for the actual reporting year govern liability. A UK home, ISA and investments therefore need to be considered under Argentine rules, rather than their UK labels.

ARCA normally identifies a taxpayer by CUIT and provides online access through a clave fiscal. Whether an annual determinative Ganancias return is due depends on registration and income; the old separate informative return ended from fiscal year 2023. Bienes Personales may need its own return. CUIT and clave fiscal explains access, while ARCA publishes filing dates and thresholds for each year.

When the British and Argentine years overlap

HMRC determines residence under the Statutory Residence Test for each 6 April–5 April year. Argentine tax residence may begin on the first of a month, and Bienes Personales measures assets at 31 December. A move does not automatically end UK residence; UK split-year treatment applies only in HMRC's specified cases. UK days, homes, family, work and ties determine the SRT result. P85 tells HMRC about departure and may prompt repayment, but does not itself establish non-residence; Self Assessment filers use SA109 residence pages. The SRT guide explains those tests.

Dual domestic residence is possible. Article 4 of the 1996 UK–Argentina double taxation convention then applies successive treaty tie-breakers: permanent home, centre of vital interests (closer personal and economic relationships), habitual abode, nationality and ultimately agreement between the authorities. Treaty residence decides how the convention applies; each country can still require domestic registration or reporting. The actual availability of a home and where family, work and finances sit matter more than an address printed on a card.

The treaty can materially change a retiree's position. UK workplace and private pensions within Article 18 are generally taxable only in Argentina for someone treaty-resident there. A pension lump sum that was tax-free in Britain should still be assessed under Argentine rules. The UK State Pension falls under the treaty's other-income provision: both countries can tax it, with qualifying UK tax credited in Argentina. Rent and gains on UK property can remain taxable in Britain and reportable in Argentina. A non-resident landlord may use NRL1 to seek gross rent without withholding, which does not make the rent tax-free; a non-resident sale of UK residential property normally needs a 60-day UK property CGT return, even if no UK tax is due. The treaty guide deals with income-specific claims.

A Bristol couple's first resident year

Suppose two people aged 62 start qualifying temporary permission on 10 March 2026. One receives a £1,600 monthly private pension and they let a UK property for £900 gross a month, leaving the rent in a UK account. They spend 42 days outside Argentina in the first 12 months. On those ordinary facts, Argentine tax residence begins 1 April 2027, while their UK status must be assessed separately for 2026/27 and 2027/28.

Nine months from April to December 2027 would represent £14,400 in pension receipts and £8,100 gross rent at those monthly rates. These are tracing figures, not an Argentine tax bill or a guarantee that taxable receipts equal nine bank deposits. UK letting statements, pension P60 or provider records, proof of tax paid and relevant exchange-rate evidence make both countries' calculations possible. The rental brings UK non-resident landlord administration; the pension raises a treaty-relief question once Argentine treaty residence is established.

Evidence for the first return and for a later departure

The first resident year becomes easier to reconstruct if HMRC history, PAYE and pension records, ISA and investment statements, and property purchase and letting records are kept alongside the Migraciones grants. Actual travel dates establish the 90-day tally. UK rent, pension and investment income, asset ownership and cost details, and tax already paid feed the Argentine Ganancias and Bienes Personales assessment. ARCA sets each year's filing timetable, so a prior year's deadline or threshold cannot be carried forward.

For a treaty claim requiring proof of Argentine residence, ARCA issues a certificado de residencia fiscal through a free online service using clave fiscal. Its stated period for answering a request for supporting documents is 15 calendar days; if an approval includes an observation requiring documents at an office, the period is 10 calendar days from the following day. A DNI or UK bank statement is not that certificate.

Departure has a legal timetable too. Under Article 119, Argentine residence can end on the first of the month after acquiring permanent residence abroad or completing 12 continuous months outside Argentina. ARCA requires notice with evidence before departure or via an Argentine consulate once abroad; a flight or expired lease alone does not prove the condition. If immigration permission is still undecided, visa and residence routes sets out the options. For a large disposal or pension withdrawal during a transition year, the dates of the two countries' calculations can decide where the cost falls.