Argentina to Share Bitcoin (BTC) User Data With 77 Jurisdictions by 2029 Under OECD Pact

Argentina Commits to OECD's CARF

Argentina will automatically share crypto transaction data with foreign tax authorities from 2029, after committing to the OECD's Crypto-Asset Reporting Framework (CARF), the emerging global standard for cross-border digital-asset tax transparency. The Global Forum on Tax Transparency and Information Exchange announced the commitment on September 14, in a press release confirming that Buenos Aires will fully implement the standard by the end of the decade. Under the framework, Argentina's tax administration will send user-level records to participating jurisdictions and receive equivalent data on its own residents' offshore activity — closing a long-standing gap involving foreign-registered exchanges that previously owed no reporting duty to local authorities. The information set is broad: it covers each user's identity, purchases and sales of digital assets against fiat currency, exchanges between different tokens, payments made in crypto, and transfers sent to or received from external addresses, meaning self-custodied wallets outside any regulated platform. Data recorded on the blockchain itself is not what moves between states; the exchanges transmit the identity-tagged records that platforms keep. Global Forum chair Gaël Perraud framed the accession as a milestone, noting that a country with one of the world's highest crypto adoption rates joining the framework is an important step toward broad implementation. In his words, it will help ensure Argentine tax authorities obtain the information they need on offshore digital-asset transactions and strengthen international efforts against tax evasion and avoidance risks as crypto use grows. The move also aims for regulatory parity between fiat and crypto rails, giving authorities visibility into both for the first time.

77 Jurisdictions, 2028 Collection Start

Before any data flows, Argentina must write the framework into domestic law and adopt detailed rules obliging virtual asset service providers (VASPs) to submit customer transaction records to the tax authority. The sequencing implied by the commitment leaves a tight runway: if exchanges begin in 2029, collection of the underlying records could start in 2028, with one full year of gathered data handed to partner jurisdictions the following year. Argentina's accession lifts the number of jurisdictions committed to exchanging information under CARF by 2029 to 77 — a group that includes G20 members, per the OECD's commitments list. Expansion is accelerating across major economies: Japan moved to extend its regime in April, while France is drafting internal legislation to align with CARF as it seeks to lift its digital-asset tax receipts. For Argentine users, the practical change is that activity routed through foreign platforms — historically invisible to local authorities — becomes reportable, alongside crypto-to-crypto swaps and stablecoin payments, a segment where issuers such as Circle are also building dedicated settlement layers like the Arc blockchain. The shared data set captures transfers to and from external addresses, so reporting obligations will increasingly span assets regardless of their tokenomics. Buenos Aires has not yet published a draft bill or named a lead agency, so exact reporting thresholds and penalty provisions remain undisclosed pending the domestic rulemaking. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

Compliance Clock for VASPs

COINOTAG's reading of the OECD press release and the commitments document is that two dates now bind the ecosystem: full implementation by 2029 and, implicitly, record collection from 2028, with obligations falling on VASPs serving Argentine users — including offshore-registered platforms that previously reported nothing locally. With 77 jurisdictions signed on, CARF is fast becoming the default global tax layer for Bitcoin (BTC) and the broader digital-asset market, and Argentina's high-adoption base makes it a flagship test of how far that enforcement can reach.