Mexico tax agency SAT threatens fines up to 44,000 pesos for unreported used‑car sales

Mexico's Servicio de Administración Tributaria (SAT) has tightened oversight of used‑car transactions. Buyers and sellers must report these sales in their annual tax return; failure to do so can result in penalties ranging from 1,810 to 44,970 pesos, with additional fines for not filing electronic returns or compensation notices.

The measure, part of the Treasury's effort to track the flow of money and combat money‑laundering, includes an exemption: gains from the sale are tax‑free if the profit does not exceed three annual Units of Measurement and Update (UMA). Gains above that threshold are taxed only on the excess amount. The SAT advises retaining all transaction documents to ensure correct reporting.