An employee must notify his or her employer, or the Vietnamese party, or the representative of the foreign non Governmental organization that the work permit was lost or damaged or changed in passport number, working place within at least three (3) days of discovering same.
In all cases where there is no work permit required, the employer has to inform the local DOLISA at least seven days in advance
Foreigners working in Vietnam must have a work permit, except some cases
At least 30 (thirty) days before a work permit expires, the employer or the Vietnamese party shall submit a dossier of application for extension of a work permit to the provincial-level Labor, War Invalids and Social Affairs Service which has granted the work permit.
A permanent residence card is the solution for people who wish to regularly visit to stay in Vietnam for a longer period. It is perfect for people that wish to retire in Vietnam and for other people who want to stay in Vietnam without a work permit.
Temporary Residence Card (“TRC”): as a matter-of-principle, Vietnamese regulations provide for the possibility of obtaining a TRC for foreigners residing in
Vietnam residence cards are granted to foreigners who want to extend their time of living in Vietnam provided that they must meet all the regulated requirements.
The best solution to the problem is to get a Vietnamese work permit, and luckily the rules for how to obtain a work permit has become a bit easier. Earlier you needed a university degree AND 5 years experience within your current field. As of now, you only need to have either University degree OR 5 years experience working within your field. For some fields you can also use a professional skills certificate, ex. accountant certificate.