What is the Aguinaldo in Mexico?

The Aguinaldo is a mandatory year-end bonus equivalent to at least 15 days of salary, usually paid in December.

How much is the IMSS employee contribution?

In 2024, the employee contribution to IMSS (Social Security) is approximately 2.5% to 3% of the base salary.

ISR is withheld monthly by employers, but an annual reconciliation is mandatory for those earning above a certain threshold.

In Mexico, employers are responsible for withholding monthly income tax (ISR) and social security contributions (IMSS).

ISR Brackets: Progressive monthly rates starting from 1.92% to 35%.
IMSS: Social security contribution that covers healthcare and pension.
Annual Bonus (Aguinaldo): Mandatory year-end bonus (typically 15 days of salary).