Argentina and the United States have no income tax treaty. For dividends from US stocks, that means the full 30% default withholding applies, with no reduced rate to claim via W-8BEN.
On the Argentine side, the domestic tax framework treats foreign-currency-denominated securities - which describes US stocks held in US dollars through a US brokerage - differently from peso-denominated instruments, and that distinction is worth understanding clearly before assuming a single “capital gains rate” applies uniformly to all your holdings.
No Treaty Relief for Argentine Residents
No treaty means no rate relief from W-8BEN. The form certifies you as a non-US person and keeps backup withholding off the account - that regime is 24%, lower than 30%, but applied to gross sale proceeds too - while the dividend line still reads 30%.
Capital gains: the US generally does not tax capital gains realized by a non-resident alien on US securities under domestic law (IRC §871), independent of treaty status - this part of the picture doesn’t depend on a US-Argentina treaty existing at all.
Argentina’s Side: Currency Denomination Determines the Rate
Argentine resident individuals face a capital gains rate that depends specifically on the currency the security is denominated in:
- Foreign-currency-denominated securities (or peso securities with an inflation-adjustment clause): a flat 15% rate on gains. US stocks, held and traded in US dollars, fall into this category.
- Peso-denominated securities without an adjustment clause: a lower flat 5% rate.
Broader “financial income” - which includes interest on bank deposits and dividends from Argentine companies alongside capital gains on financial instruments - follows the same 5%/15% split by currency denomination, reflecting a domestic policy distinction between peso-based and foreign-currency-based financial activity generally, not something specific to foreign stocks alone.
What this means for a US stock investor: gains on US shares are almost certainly taxed at the 15% rate given their dollar denomination, not the lower 5% rate that applies to peso instruments. This is a meaningful distinction to get right when estimating your actual Argentine tax liability, since assuming the lower rate applies across the board would understate what’s owed.
Argentine tax residents are taxed on worldwide income, meaning US dividends and capital gains are in scope regardless of whether funds are repatriated to Argentina.
Putting the 15% Against a Real Sale
The currency-denomination rule is easy to nod along to and easy to get expensively wrong, so it is worth seeing on an actual position.
Suppose you buy $10,000 of a US-listed stock and sell it three years later for $18,000, a gain of $8,000.
| Peso instrument (5%) | US stock, USD-denominated (15%) | |
|---|---|---|
| Gain | $8,000 | $8,000 |
| Argentine tax | $400 | $1,200 |
| Net gain kept | $7,600 | $6,800 |
The $800 difference is entirely a question of which rate applies - and for a US-listed, dollar-denominated share, it is the 15% column. An investor who mentally files US stocks alongside their peso holdings under-provisions by two-thirds of the actual liability.
Dividends run separately. A $1,000 US dividend is withheld at the full 30% at source, leaving $700 in the account before Argentina’s own treatment of the income is applied - and with no treaty, there is no mechanism written down that guarantees the US tax credits against the Argentine charge. That gap is the question to put to your contador.
How Argentine Investors Get an Account
You can apply from Argentina at either Interactive Brokers or eToro. Confirm current requirements directly before applying, since broker policies for specific countries can change - and given Argentina’s history of capital control changes, it’s also worth confirming current rules on funding a foreign brokerage account from Argentine pesos directly with your bank or a tax/forex advisor before initiating a transfer.
The Short List for Argentina Investors
Holding US stocks from Argentina - cover these:
- Expect 30% US dividend withholding with no treaty reduction - file W-8BEN anyway to certify status and avoid backup withholding
- Apply the 15% Argentine capital gains rate for foreign-currency (USD) denominated securities like US stocks, not the lower 5% peso-instrument rate
- Report worldwide investment income, including US dividends and capital gains, on your Argentine return regardless of repatriation
- Confirm current capital-control and remittance rules for funding a foreign brokerage account from Argentina, given the country’s history of changes in this area
- Re-check broker eligibility for Argentina before you apply - the country lists are revised more often than the tax rules are
Argentina, in a Paragraph
No treaty means the 30% US withholding on dividends is fixed - there’s no form that improves it. On the Argentine side, US stocks fall into the 15% foreign-currency capital gains category rather than the lower 5% peso-instrument rate, a distinction worth getting right when estimating total tax owed. Given Argentina’s history of economic and currency-control volatility, confirming current remittance and reporting rules with a local tax advisor before committing significant capital is worth the extra step relative to more stable jurisdictions covered elsewhere in this series.
This walks through investing from Argentina generally and makes no recommendation. At the date of this update, no comprehensive US-Argentina income tax convention is in effect. Argentine capital gains rates, currency-denomination rules, and capital controls change relatively frequently - verify current details with a qualified Argentine tax advisor (contador) before acting.
Sources: IRS Publication 515 (2026) and IRS tax treaty tables (no Argentina listing); IRC §871 (non-resident alien taxation); Chambers and Partners - International Tax 2026, Argentina; Accounting Insights - The US-Argentina Tax Treaty: Status and Key Provisions; Golden Harbors - Argentina Tax Regime 2026; taxtreaties.tax-consultants-international.com - Argentina Dividend guidance.
