Is proof of TM30 registration required for visa exemption extensions at Bangkok immigration?

Sometimes yes, sometimes no. HOWEVER, it is easy to self-file a TM30 there though.

Per Tod Daniels

From 3/permalink/7/

REPOST: Self File TM-30 BANGKOK ONLY.

This is the way you need to fill out the TM30 form if you are filing with NO documentation from your land lord

Your name goes at the top of the form, your address goes under it, then your address AGAIN as the address where the foreigner lives.

In the blank area at the bottom left hand side of the piece that they will tear off and give back to you write your address again.

On the second page (the table) put all your information.

You sign BOTH forms on the signature lines. Print the forms correctly. the first page is portrait orientation and second page is landscape orientation :O

Make copies of;

-lease

-data page of your passport

-visa (if you have one)

-extension (if you have one)

-entry stamp

-TM6 departure card

sign the copies of your passport stuff.

This is a way to file a TM30 in BANGKOK without any information from your land lord at all. <- (meaning you don't need their i/d, their house book listing, a power of attorney form with the 10 baht in tax stamps).

AFAIK: this ONLY works in Bangkok but I can say with 100% accuracy that it does work (y)