Mexico's Dictamen Fiscal Is Similar to New Fin 48 in the US

Excerpt from Practical Mexican Tax Strategies by Steve Axler & Dinorah Gonzalez (Halliburton)

One of the concerns resulting from the introduction of FIN 48 for many in-house tax practitioners, especially for US based multinational companies, is that the US Internal Revenue Service would now essentially have a road map to various tax positions taken by the taxpayer. However, the disclosure of tax positions to the tax authorities is not a new or unusual event in Mexico. In fact, for large taxpayers in Mexico this is an annual occurrence known in Spanish as the Dictamen Fiscal.

Often simply referred to just as “the Dictamen”, this is a tax audit of a Mexican legal entity or person that carries out business activities or any foreign residents with a permanent establishment in Mexico. The Dictamen Fiscal can only be performed by a registered and certified Mexican public accountant. Upon completion of the Dictamen, the accountant will issue a report which will be filed with the Mexican tax authorities (Servicio Administración Tributaria or “SAT”) stating whether, according to the applicable tax regulations and audit standards, the taxpayer has complied with its obligations. The public accountant is required to sign the Dictamen under penalty of perjury.

It cannot be emphasized enough the influence that a Mexican statutory auditor has regarding the tax positions taken by a taxpayer in Mexico.

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