Mexican President Claudia Sheinbaum denied on 2026-06-25 that the Impuesto Especial a Producción y Servicios (IEPS) on alcoholic beverages and cigarettes would be increased in the upcoming 2027 Economic and Fiscal Package. ^[1] The IRS warns that US taxpayers who fail to file tax returns or pay tax debts may face asset seizures and criminal prosecution. ^[2] President Sheinbaum stated that the administration is implementing traceability measures for the IEPS tax on fuels to combat fuel theft known as huachicol. ^[3] Taxpayers can be levied if they ignore letters and notices sent by the IRS via postal mail regarding a tax debt. ^[4] The IRS defines a levy as the legal seizure of a person's property to cover a tax debt. ^[5] The IRS will proceed with levies using the Automated Collection System (ACS) if a taxpayer ignores notices, including the Final Notice of Intent to Levy. ^[6] President Sheinbaum clarified that the fuel tax measure is not a new tax but utilizes the existing IEPS rate to fight tax evasion. ^[7] The proposed traceability measure requires the Servicio de Administración Tributaria (SAT) to adapt its systems, meaning the implementation will not be immediate. ^[8]