Mexico SAT Fiscal Address in 2026: Geolocation, Verification, and Change Notice
A Mexican fiscal address must meet the legal definition and make the taxpayer locatable; procedure 35/CFF alone cannot repair a...
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Focused updates on rules, reforms and relevant tax movements for individuals and companies in Mexico.
Mexico Tax Discrepancy in 2026: When Card Spending Exceeds Reported Income
Mexico's SAT can compare annual card spending, purchases, and deposits with reported income, but an apparent difference must be notified...
SAT Extra Filing Days by the Sixth RFC Digit: Mexico's 2026 Table and Exclusions
SAT still provides one to five extra business days for certain monthly federal returns based on the sixth numeric RFC digit, but the...
October 2026 Tax Calendar: SAT, IMSS, and Closing Obligations
Prepare October 2026 with individual obligations, responsible parties, internal cutoffs, official sources, and compliance files.
SAT List 69-B: What to Do If a Supplier Appears in the Query
If a supplier appears in the 69-B query, confirm status and date, identify affected CFDIs, and gather evidence of materiality.
Tax Surcharges 2026: How Much Does It Cost to Pay Taxes Late
A tax paid late can generate updating, surcharges, and, depending on the case, a fine; calculate with actual dates and keep evidence.
August 2026 Tax Calendar: SAT, IMSS, and Obligations to Monitor
Organize August 2026 with responsible parties, internal cutoffs, and evidence for SAT, IMSS, DIOT, CFDI, and Tax Mailbox.