Thailand maintains a list of 40 occupations that are restricted for foreign workers, grouped into four categories based on the degree of restriction.

Among them, 27 occupations are entirely off-limits to foreigners under all circumstances, including manual labor, driving, retail sales, and traditional Thai massage.

Enforced under Thailand's Emergency Decree on Foreigners' Working Management, these restrictions aim to protect local professions.

The Ministry of Labor warns that many expats mistakenly believe a work permit grants blanket permission for any employment. In reality, work permits are job-specific and cannot override the protected occupations list.

The ministry urges both employers and foreign employees to verify that the occupation listed on a work permit precisely matches the actual job being performed.

Under the law, migrant workers found working without permits or outside their authorized scope face fines ranging from 5,000 to 50,000 baht (US$149-1,490), as well as possible deportation, according to the Bangkok Post.

Employers who hire illegal workers are liable for fines of 10,000 to 100,000 baht per worker.

Repeat offenders may face prison terms of up to one year, higher fines of 50,000 to 200,000 baht per worker, or both, and a three-year ban on employing migrant workers.

According to The Nation, the 10 most prominent prohibited jobs are as follows: