# Mexico tax administration and revenue trends > Live situation record from CLSTR: https://clstr.news/situations/mexico-tax-administration-and-revenue-trends > Updated: 2026-09-21T17:12:12.000Z. Sources: 5. Developments: 2. In Mexico, the Servicio de Administración Tributaria (SAT) reported a loss of over 500 large taxpayers over the past year. Despite increased scrutiny and digital tools, tax revenue from companies with annual revenues of 1.5 billion pesos or more fell by 0.89% in real terms during the first half of 2026 compared to the previous year. However, the SAT noted that its audit programs achieved 111.5% compliance in its continuous improvement program, generating 169.19 billion pesos in secondary revenue. Following these trends, the SAT clarified its stance on bank transfers and reporting. The authority stated there is no specific maximum amount for transfers that automatically triggers audits; instead, it monitors the congruence between reported income and actual financial movements, such as deposits and expenditures. While financial institutions must report monthly cash deposits exceeding 15,000 pesos, electronic transfers remain subject to review if they do not align with a taxpayer’s declared fiscal situation. ## Timeline ### 2026-09-21: SAT clarifies rules on bank transfers and tax reporting in Mexico The SAT clarifies that tax reviews in Mexico are based on the consistency between reported income and financial activity, rather than specific transfer limits, though cash deposits over 15,000 pesos are tracked 2 sources. https://clstr.news/cluster/sat-clarifies-rules-on-bank-transfers-and-tax-reporting-in-mexico ### 2026-09-08: Tax trends show revenue shifts in Mexico and wealth growth in Spain Tax reports show Mexico's SAT lost over 500 large taxpayers despite increased audits, while Spain saw the number of taxpayers with over 30 million euros in assets more than double since 2013. 3 sources. https://clstr.news/cluster/tax-trends-show-revenue-shifts-in-mexico-and-wealth-growth-in-spain --- Cite as: Mexico tax administration and revenue trends. CLSTR, https://clstr.news/situations/mexico-tax-administration-and-revenue-trends