Mexico’s labor law framework, primarily governed by the Federal Labor Law (FLL), applies equally to Mexican and foreign workers employed within national territory. Employment relationships must be formalized through written contracts specifying job duties, salary, working hours, and benefits. Foreigners may work in Mexico only if they hold the appropriate immigration status authorizing remunerated activities, and employers are required to maintain a workforce in which at least 90% of employees are Mexican nationals, except for specialized technical or managerial roles. Labor rights—such as limits on working hours, mandatory rest periods, paid vacations, profit sharing, and protections against unjustified dismissal—apply uniformly regardless of nationality.

Employers hiring foreign workers must comply with additional administrative obligations, including registering the employment relationship with the National Immigration Institute (INM) and ensuring that the worker’s immigration documents remain valid. Foreign employees enjoy the same protections as Mexican workers in matters of workplace safety, anti‑discrimination, and access to labor courts. Collective labor rights, including union membership and collective bargaining, are also available to foreigners, provided they meet the internal requirements of the relevant union or labor organization.

Mexico’s social security system, administered by the Mexican Social Security Institute (IMSS), provides medical services, disability and life insurance, occupational risk coverage, retirement benefits, and childcare services. Enrollment in IMSS is mandatory for all employees, including foreigners, and employers must register workers, calculate contributions, and make periodic payments. Foreigners who contribute to IMSS acquire the same rights to benefits as Mexican nationals, and Mexico has entered into bilateral social security agreements with certain countries to coordinate pension rights and avoid duplicate contributions. Overall, the system integrates foreign workers into the national labor and social‑protection framework while maintaining regulatory oversight and employer accountability.