Colombia's DIAN has implemented Resolution No. 000240, requiring crypto exchanges and service providers to report user transactions involving Bitcoin, Ethereum, and major stablecoins in compliance with OECD's CARF. This regulation applies from the 2026 tax year with initial reporting deadlines in May 2027. Mandatory disclosures include user identity, transaction details, and market values, with penalties up to 1% of transaction amounts and automatic reports of transfers exceeding $50,000.