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Clear steps for SAT, CFDI, and tax obligations.

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.

Fintax Team · Sep 11, 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.

Fintax Team · Aug 8, 2026Read guide →