指南

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Financial director correcting inconsistencies in her company's compliance opinion.
Tax Compliance10 min 阅读

SAT Compliance Opinion for Companies 2026: How to Check It and Correct Inconsistencies

SAT compliance opinion for companies in 2026: how to check it, read inconsistencies, and prepare clarifications with evidence.

Jimena Cruz · 2026年7月22日阅读指南 →
Person in charge renewing the CSD while keeping the business invoicing active.
Electronic invoicing9 min 阅读

SAT Digital Seal Certificate 2026: How to Renew the CSD Without Interrupting Invoicing

SAT Digital Seal Certificate 2026: how to check expiration, renew the CSD, protect files, and prevent invoicing from stopping.

Juan Elizondo · 2026年7月20日阅读指南 →
Person linking a canceled CFDI with its replacement and receipt.
CFDI10 min 阅读

CFDI Cancellation 2026: Reasons, Replacement, and Receipts You Must Keep

2026 Guide to Canceling CFDI: reasons, replacement, authorization, receipts, and accounting evidence to avoid discrepancies with clients...

Héctor Jasso · 2026年7月18日阅读指南 →
Professional backing up keys and checking the expiration of their e.firma.
SAT e.firma10 min 阅读

Renew SAT e.firma 2026: requirements, expiration, and backup before it blocks you

Guide to renewing SAT e.firma in 2026: expiration, file backup, appointments, legal representative, and what to check before you need it.

Bryan Carrizalez · 2026年7月16日阅读指南 →
Fintax video advisor explaining how to remedy a negative compliance opinion.
Tax Compliance12 min 阅读

Negative SAT Compliance Opinion: How to Fix It in 2 Steps

Negative compliance opinion: identify omitted returns, pay outstanding balances, wait 72 hours, and clarify with evidence if the...

Valeria Matoviche · 2026年7月14日阅读指南 →
Miguel González explaining in a friendly way how to verify a supposed email from the SAT.
Tax Mailbox10 min 阅读

What to Do If You Receive an Email from the SAT? 3 Steps to Verify It Without Falling for Scams

Receiving an email from the SAT doesn't automatically mean a fine or audit: verify its authenticity and confirm the notice within your...

Andrés Chávez · 2026年7月10日阅读指南 →
Taxpayer and accountant validating a credit balance before requesting a refund.
Guías8 min 阅读

SAT tax refund in Mexico: 2026 review guide

Review a Mexican SAT tax refund before filing: automatic-return rules, FED requests, CLABE ownership, evidence, response periods and...

Valeria Matoviche · 2026年6月16日阅读指南 →