What is Obra social?
The obra social is the entity that provides medical coverage to employees and their families. It is funded by the worker's contribution (3%) and the employer's contribution.
The worker can choose or switch obra social. It is different from private health plans (medicina prepaga), which can be contracted as a complement.
In practice
3% is deducted from salary for the obra social; together with the employer contribution, it funds medical coverage for the worker and their family.