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Clear steps for SAT, CFDI, and tax obligations.

Chief financial officer building a 2027 fiscal budget by tax.
2027 Budget12 min read

Fiscal Budget 2027: How to Provision ISR, VAT, Payroll, and Annual Taxes

Model ISR, VAT, payroll, and annual taxes by trigger, date, and scenario to build a 2027 tax reserve that truly follows your operations.

Cassandra Torres · Sep 20, 2026Read guide →
Compliance officer reviewing thresholds and file of vulnerable activity.
AML13 min read

Vulnerable Activities and AML Notices 2026: Thresholds and File

Identify vulnerable activity, client, beneficiary, accumulation, and thresholds before submitting AML notices and saving acknowledgments.

José Miguel González · Sep 17, 2026Read guide →
Accountant updating a historical tax loss schedule.
Tax Losses11 min read

Tax Losses: Updating, Amortization, and Control File

Manage tax losses by fiscal year with origin, updating, applications, balance, and support before reducing profits.

Andrés Chávez · Sep 14, 2026Read guide →
Businesswoman authenticating an SAT invitation letter and preparing a SAT clarification.
Invitation Letter11 min read

SAT Invitation Letter: How to Validate, Respond, and Clarify Differences

Authenticate the SAT invitation letter, identify the discrepancy, reconcile documents, and respond through the indicated channel with...

Andrés Chávez · Sep 12, 2026Read guide →
Finance director reviewing contract and withholdings for a payment to a foreign party.
Payments to Foreigners13 min read

Payments to Foreigners: ISR, VAT Withholdings, and Treaties

Before paying a foreign party, classify the concept, residence, source, possible withholding, VAT, treaty, and file documentation.

Héctor Jasso · Sep 11, 2026Read guide →
Construction supervisor registering a building project and its incidents in SIROC.
SIROC12 min read

SIROC IMSS: registration and incidents of a construction project

Register the project in SIROC and manage incidents, contractors, personnel, contributions, and acknowledgments from start to finish.

Héctor Jasso · Sep 8, 2026Read guide →
Taxpayer updating activities and obligations in their RFC.
RFC10 min read

How to Update Activities and Obligations in the RFC with the SAT

If your activity, tax regime, or obligation changes, update your RFC with the actual date and data, keep the acknowledgment receipt, and...

Bryan Carrizalez · Sep 6, 2026Read guide →
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