Guides

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Des étapes claires pour le SAT, les CFDI et les obligations fiscales.

Ces articles sont actuellement disponibles en anglais. Les liens ouvrent la version anglaise.

Taxpayer reviewing a communication from the SAT and organizing a response with their advisor.
SAT Communications9 min de lecture

What to Do If the SAT Contacts You: Invitation Letter, Requirement, or Notice

When you receive a message from the SAT, verify its authenticity, distinguish between an invitation letter and a requirement, and...

Juan Elizondo · 30 août 2026Lire le guide →
Professional comparing RESICO and Business and Professional Activities before starting services.
Tax Regime10 min de lecture

Which Tax Regime to Choose for a Service Business: RESICO or Professional Activity

Compare RESICO, Business and Professional Activities, and legal entities before starting a service business.

José Miguel González · 28 août 2026Lire le guide →
RESICO professional reviewing collected CFDI, VAT, and monthly tax return with their accountant.
RESICO10 min de lecture

Monthly Accounting for RESICO: CFDI, VAT, and Tax Return Checklist

Manage RESICO month by month with a checklist of collected CFDI, expenses, withholdings, VAT, tax return, payment, and file.

Cassandra Torres · 27 août 2026Lire le guide →
Advisor showing a business owner a prioritized tax diagnosis with an action plan.
Tax Diagnosis9 min de lecture

Tax Diagnosis Before the SAT: What to Review Before Regularizing

A tax diagnosis turns data from the SAT, CFDI, banks, and filings into a prioritized plan with evidence and responsible parties.

Valeria Matoviche · 25 août 2026Lire le guide →
Taxpayer classifying the causes of a Negative Compliance Opinion from the SAT.
Compliance Opinion8 min de lecture

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.

Bryan Carrizalez · 24 août 2026Lire le guide →
Doctor reviewing a CFDI for fees and a patient's electronic payment.
Accounting for Doctors10 min de lecture

Accounting for Doctors: CFDI, VAT, and Patient Deductions

Accounting for doctors links CFDI, billing, VAT, patient deductions, and tax records without mixing sensitive clinical data.

Bryan Carrizalez · 22 août 2026Lire le guide →
Person reviewing the reason for a rejected refund and preparing evidence for SAT.
SAT Refunds9 min de lecture

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,...

Cassandra Torres · 16 août 2026Lire le guide →