Renewed my 5 year today in and out in one hour as I was prepared. Did the one hour DLT on line training before hand,
Documents required
Copies of front and back of existing licence.
copy of passport, visa, extension pages.
it says copy of lease but they said not needed.
Medical certificate from any clinic cost 200Baht
Residence letter from immigration.
You must go in person to make an appointment, you cannot do online on line. You go back on the day they advise its as simple as that. If you go after your license expires you get 6 years not five.