What are the required documents for a 1-Year Extension of Stay Based on Marriage in Thailand?

My 1 year extension of stay based on marriage to a Thai is due to expire on 21 Nov 2021 which falls on a Sunday which is when immigration will be closed . How far in advance can I turn up at Chaengwattana to submit the required documents ?

Without you and your thai wife slogging out there to get the hand out listing everything AND asking them if there's anything not on it that you need as well anything people give you will be hit or miss.

here's the stuff I know off the top of my head;

-Bank letter from the bank can be up to 7 days old

-6 month detail transaction print out (you can get it from the bank and they can print it on the spot)

-Bank book needs to be updated the day you apply

TM7 application for extension w/passport photo

copies of

-all pages in your bank book

-Original Kor Ror 3 rose bordered certificate

-new Kor Ror 2 (less than about 6 months old seems ok)

-data page of your passport

-original entry stamp, Non-O visa and current extension

-TM6 departure card

-TM30 receipt

-90 day report receipt

-Lease

-wife's house book listing

-wife's thai id

-hand drawn map to your house (only the immediate area around your house is okay

Photo of you and your wife standing in front of the address numbers of where you live (cannot be selfies)

Photos of you and your wife sitting at the table and on the sofa (2 different photos of both of you in them)

Those things and 1900baht SHOULD get you a 30 day under consideration stamp where you go back in a month and get the year extension inked in.

Again, the BEST way to do it is to slog on out to C/W and go to Section L-1 <- where you file for the extension and get the hand out and talk to them about unlisted stuff they also require

You may trust the Immigration Office, visit them for the hand out with the latest requirements.