Guides

Understand your taxes.
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Clear steps for SAT, CFDI, and tax obligations.

A Mexican property host checks a reservation report while holding a key.
Guides4 min read

Rentals and Airbnb: classify the transaction before deducting

The actual activity determines the tax treatment. Residential rentals and platform-mediated lodging follow different deduction and...

Cassandra Torres · Oct 26, 2026Read guide →
A Mexican merchant links a payment receipt to an invoice while using a calculator.
RESICO5 min read

RESICO: reconstructing income from a net bank deposit

A bank deposit can be smaller than collected income before withholding. Reconciling each transaction helps separate VAT, withheld ISR...

Valeria Matoviche · Oct 14, 2026Read guide →
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 →
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 →
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 →
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 →
Analyst calculating ISR and VAT withholdings for fees and rent.
Withholdings12 min read

ISR and VAT Withholdings When Paying Fees or Rent

Before paying fees or rent, identify the parties, concept, base, and obligations to correctly calculate and remit withheld ISR and VAT.

Héctor Jasso · Aug 8, 2026Read guide →