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Clear steps for SAT, CFDI, and tax obligations.

Accountant classifying fixed assets and reviewing their tax depreciation.
Fixed Assets12 min read

Fixed Assets and Tax Depreciation: Original Amount, Rates, and File

Classify assets, record the original amount, apply percentages, and keep custody, CFDI, payment, and depreciation calculation.

Héctor Jasso · Sep 4, 2026Read guide →
Human resources manager explaining a severance calculation.
Severance12 min read

Severance or Settlement: What Each Payment Includes and How to Document It

Distinguish between severance and compensation, and document the date, cause, concepts, CFDI, deregistration, and payment to close the...

José Miguel González · Sep 1, 2026Read guide →
Taxpayer reviewing a communication from the SAT and organizing a response with their advisor.
SAT Communications9 min read

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 · Aug 30, 2026Read guide →
Professional comparing RESICO and Business and Professional Activities before starting services.
Tax Regime10 min read

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 · Aug 28, 2026Read guide →
RESICO professional reviewing collected CFDI, VAT, and monthly tax return with their accountant.
RESICO10 min read

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 · Aug 27, 2026Read guide →
Advisor showing a business owner a prioritized tax diagnosis with an action plan.
Tax Diagnosis9 min read

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 · Aug 25, 2026Read guide →
Taxpayer classifying the causes of a Negative Compliance Opinion from the SAT.
Compliance Opinion8 min read

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 · Aug 24, 2026Read guide →
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