Mexican controversies to rise as anti-abuse clause inserted into legislation

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Mexican controversies to rise as anti-abuse clause inserted into legislation

pwc-logo-small.jpg

On September 8 the Federal Executive Branch delivered its proposed tax package for 2014, which includes an important change in the Federal Tax Code (FTC) related to the substance over form concept, which derives from the proposed incorporation of an anti-abusive clause in article 5 of the FTC.

Existing law

Article 5 of the current FTC provides the option to apply a “strict application” to interpret any provision that refers to the subject, object, basis and rate of a tax.

In the proposed changes, the main argument to include an anti-abusive clause in the article referred to, is that some unfair taxpayer practices related to the tax legislation have been highlighted, which harm the proportionality standard provided in the Mexican Constitution. Therefore while some taxpayers are not paying taxes accordingly, this tax burden falls into the remaining taxpayers.

According to the OECD, the term tax evasion is generally used to mean illegal arrangements where liability to tax is hidden or ignored, that is, the taxpayer pays less tax than he is legally obligated to pay by hiding income or information from the tax authorities.

The modification proposed is to add two paragraphs in the aforementioned article which includes the anti-abusive clause.

During the process of a tax audit, the tax authorities may challenge either the formal aspect, such as whether tax returns are submitted on time, or the substantive aspect, such as supporting documentation, or both.

It is common for the tax authorities to challenge various deductions, arguing mostly that expenditures do not comply with the strictly indispensable standard, a concept which is not even defined by law.

Therefore, as the substance over form concept is very ambiguous, if the modification is approved to article 5 of the FTC, taxpayers shall enhance its supporting documentation of their records, not only taking into account the formal aspect, but also, by having sound evidence demonstrating subjective elements, such as a direct economic benefit.

For example, if an event took place to promote the company’s products, the taxpayer shall tie the amount of the expenses made in relation to the increase in the sales generated by the event, but generally, such increase in the sales cannot be measured accordingly, since, how can the branding exposure be measured accurately?

We are expecting an increase in tax controversies during tax audits due to the freedom that the tax authorities will have in regard to their criterion about the “substance over form” concept. The approval of the tax package is expected in mid November.

By principal Tax Disputes correspondents for Mexico, Fernando Lorenzo (fernando.lorenzo@mx.pwc.com) and Laura Enriquez (laura.enriquez@mx.pwc.com), of PwC.

more across site & shared bottom lb ros

More from across our site

Given the US/G7 pillar two deal, the OECD is in danger of being replaced by the UN as the leading global tax reform forum
Cinven’s latest investment follows its acquisition of a stake in Grant Thornton UK in December; in other news, a barrister listed by HMRC as a tax avoidance promoter has alleged harassment
CIT base narrowing measures remain more prevalent than increased CIT rates, the report also highlighted
ITR's parent company, LBG, will acquire The Lawyer, a leading news, intelligence and data-driven insight provider for the legal industry, from Centaur Media
KPMG UK’s Graeme Webster and KPMG Meijburg & Co’s Eduard Sporken outline the 20-year evolution of MAPAs, with DEMPE analyses becoming more prevalent and MAPA requirements growing stricter
Rishi Joshi, of the Institute of Chartered Accountants of India, warns of potential judicial overreach as assets are recharacterised to bypass a legislative exclusion
Only 2% of in-house survey respondents said they were ‘heavy’ users of AI for TP, Aibidia’s report also found
There was a ‘deeply embedded culture within PwC that routinely disregarded formal confidentiality obligations,’ the chairman of Australia’s Tax Practitioners Board said
Jennifer Best was most recently the acting commissioner of the IRS’s large business and international division
Section 899’s exclusion from the One Big Beautiful Bill does not mean it has been nipped in the bud, Aruna Kalyanam also tells ITR
Gift this article