SAT Tax Filing Calendar
All SAT deadlines in one place — monthly declarations, payroll taxes, IMSS, and annual returns for Mexico 2025.
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About these deadlines
Monthly (Personas Físicas/Morales): IVA + ISR declarations due by the 17th of the following month.
Payroll & IMSS: IMSS OBAR due the 17th; FONACOT & INFONAVIT vary by employer ID.
Annual ISR: Personas Físicas: April 30. Personas Morales: March 31.
Note: Deadlines shift to the next business day when they fall on weekends or holidays.
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