When I hear people griping and groaning about having to deal with the 90-day report, I have to laugh. Compared to getting a media visa or a marriage visa, mailing in a Notification of Staying Longer Than 90 Days is a piece of cake. Seriously, it is NO BIG DEAL. Prior to moving to Chaengwattana, immigration was located on Soi Suan Plu. The place was almost always a madhouse, and coupled with no air-conditioning save for a few rooms on the second floor, I always left drenched in sweat.
These were the days when a visit to immigration to submit the 90-day report was mandatory. Nowadays, expats have it good; they can mail in their report. Sending it in is easy and no big deal.
What you need:
One to weeks prior to the end of your 90 days in Thailand, put the above items in the envelope and send the envelope via registered air mail or EMS to the Chaengwattana immigration department.
The Government Complex
Immigration Division 1
(90 Day Report)
B Building , Floor 2 (South Zone)
Chaengwattana Road (Soi 7) , Laksi , Bangkok 10210