Negative Compliance Opinion: Causes Reviewed by the SAT
Classify the cause of a Negative Compliance Opinion before filing, paying, or clarifying; each inconsistency requires different evidence.
Understand your taxes.
Make better decisions.
Clear steps for SAT, CFDI, and tax obligations.
Rejected Tax Refund by SAT: Causes and What to Do
When SAT does not refund your tax credit balance, review the result, classify the inconsistency, and decide whether to clarify, correct,...
Late Filing with the SAT: Penalties, Surcharges, and How to Regularize
Filing a late return requires reconstructing the period, calculating accessories, and documenting whether compliance was voluntary or...
How to Obtain Your SAT e.firma for the First Time: Requirements, Appointment, and Files to Keep
Guide to obtaining your SAT e.firma for the first time: requirements, appointment, biometrics, .cer and .key files, recovery, and secure...
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.
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.
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...