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Clear steps for SAT, CFDI, and tax obligations.

A Mexican property owner checks her lease against a folder of monthly receipts beside a house key.
Tax5 min read

Undeclared rent: how to reconstruct your Mexican tax position

Adding rental activity to an existing RFC does not resolve earlier tax returns. Addressing undeclared rent requires a period-by-period...

Bryan Carrizalez · Oct 10, 2026Read guide →
Business owner and Mexican tax adviser comparing a monthly SAT installment schedule with a deferred payment.
Mexican tax debt13 min read

SAT Tax Debt Payment Plans in Mexico: Installments, Deferral, and 2026 Requirements

How to request up to 36 SAT installments or a payment deferral of up to 12 months, including 2026 eligibility, rates, documents, and...

Héctor Jasso · Sep 21, 2026Read guide →
Taxpayer and accountant organizing a late return with acknowledgment and payment slip.
SAT Returns9 min read

Late Filing with the SAT: Penalties, Surcharges, and How to Regularize

Filing a late return requires reconstructing the period, calculating accessories, and documenting whether compliance was voluntary or...

Andrés Chávez · Aug 14, 2026Read guide →