Argentina wealth tax for foreigners: the UK mover's guide

Argentina's *Bienes Personales* (annual personal assets tax, often called wealth tax) can reach your UK house, bank accounts and investments if you become Argentine tax resident. A foreigner who remains non-resident is generally assessed only on Argentine-situs assets, often through a local substitute taxpayer. For the 2025 tax year, ARCA's general minimum taxable asset threshold was ARS 384,728,044.57 at 31 December 2025; do not use that figure as the 2026 threshold or apply it automatically to a non-resident.

First decide which assets Argentina can reach

An Argentine tax resident is assessed on taxable assets worldwide. For a British mover, that can include a UK rental flat, UK shares held inside an ISA, UK savings, and Argentine property. A non-resident generally faces Bienes Personales only on assets located in Argentina. You do not become a resident solely because you have a DNI (national identity card), an Argentine bank account or an Argentine spouse.

For a foreign national, Argentine tax residence normally starts when permanent immigration residence is obtained, or on the first day of the month after completing 12 months living in Argentina on temporary permission. Absences totalling up to 90 days in a 12-month period normally do not interrupt that count. There is no general 183-day shortcut. A rentista (own-assets income) permit lasts one year, renewable, but it does not defer the tax-residence test. See the Argentine tax-residence guide for the start and end dates.

The 2025 threshold of ARS 384.7 million is about US$249,000 at the September 2026 indicative rate of ARS 1,545 per US$. That conversion only conveys scale: the law requires the tax year's own valuation and exchange rules, not a September 2026 exchange rate for a December 2025 return. Inflation changes peso thresholds and peso values.

What belongs in the 31 December inventory

Record assets in your own name and your share of joint assets, not the full joint balance twice. Include property, cash, deposits, brokerage accounts and company interests, then identify specific exemptions and valuation rules before adding the taxable total. Ownership, location and legal character matter: an Argentine home used as your dwelling has its own exemption limit, distinct from the general minimum, while an overseas home cannot simply be called exempt because it is your main home. Argentine bank deposits and some Argentine securities have particular exemptions; a UK ISA is a UK income- and gains-tax shelter, not a universal Argentine wealth-tax exemption.

Do not use a UK estate agent's asking price as the automatic statutory value of a home. Argentine real estate, foreign real estate, shares and foreign-currency balances follow different valuation rules. Keep your purchase deed, mortgage and valuation evidence, year-end UK bank and broker statements, and the exchange rate applied in the return. A mortgage is not a blanket deduction from your asset total: liabilities are treated under specific rules, including rules for a qualifying principal home. Undrawn pension rights require classification rather than the assumption that every SIPP balance is taxable like an ordinary brokerage account.

This tax is separate from *Ganancias* (income tax on earnings), UK inheritance tax and Buenos Aires ABL (local property charges). Receiving £1,000 a month in UK rent does not itself give the Bienes Personales liability: the asset snapshot and ownership do. UK rent can, separately, generate UK and Argentine income-tax filings.

A British couple: the threshold is not a couple's allowance

Suppose two British spouses have lived on temporary residence in Buenos Aires since March 2025. Their Argentine tax residence begins in April 2026 if they meet the 12-month rule. At 31 December 2026 they jointly own a UK flat, and one spouse owns a UK ISA and savings account. Each first identifies the beneficial ownership of their share of the flat and their own accounts. They cannot take the 2025 ARS 384,728,044.57 figure, double it as one household allowance and call the result their 2026 exemption.

For a scale check only, imagine that after applying the correct 2025 year-end valuations an individual resident had ARS 600 million of non-exempt assets and no qualifying special adjustments. Subtracting the published 2025 general threshold would leave ARS 215,271,955.43 above it. That is not a tax bill: ARCA's applicable progressive schedule, asset categories and filing position determine the tax. This illustration uses a 2025 threshold deliberately; the couple must use ARCA's 2026 threshold and rates once issued, plus 2026 year-end values, to do their actual return.

File in the right order

1. Confirm your status and dates. Use Migraciones (the immigration authority) records for your temporary or permanent permission, travel history for absences, and the UK statutory-residence test guide for your separate HMRC position. The Argentine tax year ends on 31 December; the UK tax year ends on 5 April.
2. Prepare an ownership schedule. List every Argentine and UK asset at 31 December, each legal owner, ownership percentage, location, currency and supporting document. For a non-resident owner of Argentine land, include the deed and details of the Argentine representative or substitute taxpayer. Missing joint-ownership evidence is a common reason to overstate or understate a return.
3. Apply the right year's rules. Use ARCA (the tax agency formerly AFIP) to check that year's general threshold, principal-home limit, exemptions, valuation instructions, rates and filing calendar. The 2025 threshold above is a published historical figure, not a promise about 2026. Do not substitute the market USD price of a flat for the statutory Argentine peso valuation.
4. Register and submit where required. A resident who must file needs a CUIT (tax identification number) and *clave fiscal* (ARCA online access); the CUIT registration guide covers setup. Use ARCA's Bienes Personales declaration service and its published annual due dates. A non-resident's Argentine representative should establish whether the *responsable sustituto* (substitute taxpayer) mechanism applies rather than copying a resident's return.
5. Keep the audit trail. Save submitted returns, payment receipts, UK account statements and 31 December FX calculations. If also declaring UK rental income, deal with the UK Non-Resident Landlord Scheme separately; it does not pay Argentine wealth tax.

If you plan to buy Argentine property, budget for title and tax checks before signing: search Argentine homes, then establish whether ownership changes your Argentine-situs asset reporting. An Argentine property purchase alone does not make you tax resident on your UK portfolio.

Traps for UK movers — and when this page is not yours

Do not confuse an ISA's UK tax relief with Argentine exemption. Equally, do not call all pensions, debts or family-owned assets automatically taxable or deductible: their legal form matters. Do not mistake a temporary visa for an immediate worldwide-tax bill, or wait until permanent residence if 12 months on temporary permission has already made you resident. Do not offset UK income tax against an Argentine wealth-tax bill without establishing that a specific credit actually applies. The 1996 UK–Argentina convention exists, but income-tax treaty claims and annual asset-tax calculations are separate questions; the double-tax treaty guide deals with income and gains.

If you own no Argentine assets and have not become Argentine tax resident, you do not need a guide to filing Argentine worldwide wealth tax; start with planning your move from the UK. If your main concern is tax on UK rental profit rather than the value of the building, use the UK rental-income guide.