What is Infonavit?
Infonavit (Instituto del Fondo Nacional de la Vivienda para los Trabajadores, the National Workers' Housing Fund Institute) administers a fund that lets workers obtain housing loans.
The employer contributes the equivalent of 5% of the Salario Base de Cotización to the housing sub-account. If the worker has a loan, the repayment is also deducted through payroll.
In practice
Every two months the employer contributes 5% of the worker's SBC to Infonavit; if the worker has an active loan, the monthly payment is deducted from payroll.