T hailand had made major changes to the rules regarding work permits and its foreign labour law. The changes, which were introduced on March 27 2018 and saw Thailand relax some of its laws regarding work permits, including reducing the
penalties for foreigners found working without work permits. For example, foreigners can no longer be sent to jail for working without a work permit.
Also scrapped was the rarely enforced requirement that all foreigners who come to Thailand to attend meetings, seminars or sports competitions need a work permit.
Arguably the most significant change was that the Decree states that a foreigner who has work permit in Thailand can now work anywhere and for anyone and carry out work not listed in the description on their work permit, providing it is not
excluded under the list of occupations prohibited to foreigners.
There's a new narrower definition of "work":
Engaging in any profession, with or without an employer, but excluding operation of business of a licensee under the Foreign Business Law
The maximum penalty for working without work permit is reduced to a fine of THB 5,000 to 50,000 and to be deported from the country
There was no reference to the recent changes covering people who "work for themselves".