October 2026 Tax Calendar: SAT, IMSS, and Closing Obligations
Prepare October 2026 with individual obligations, responsible parties, internal cutoffs, official sources, and compliance files.
Understand your taxes.
Make better decisions.
Focused updates on rules, reforms and relevant tax movements for individuals and companies in Mexico.
REPSE 2026: Simplified Requirements for Companies and Controls That Remain
The REPSE 2026 simplification may reduce requirements for certain companies but does not eliminate validity, specialization, or compliance.
SAT electronic accounting 2026: June close
The June 2026 trial balance was due in August. Review chart changes, account continuity, XML validation, rejections and SAT acknowledgments.
SAT Tax Mailbox for Legal Entities in Mexico: How to Review and Respond on Time
A practical guide for Mexican legal entities: how to review the SAT Tax Mailbox, preserve evidence and respond without losing...
SAT audits 2026: accounting controls before you respond
Review invoices, bank records, and returns to explain discrepancies. If SAT has already contacted you, first identify what the notice...
SAT authorized donees 2026: identify the status before you act
Revocation, cancellation and loss of validity are different. Identify the act and date before changing CFDI or promising donor...