I done it 3 times here my list: TM 7 Application x 2 both must be originals

Photos (4 x 6 cm) on both application forms.

Copy of passport, main page, plus copies of old extensions, TM 6 arrival / departure card. TM30 and latest 90 day report

Copy of marriage certificate.

Updated copy of Kor Ror 2 (long tabien) from Amphur office.

Copy of house registration (blue book / tabien baan).

Copy of wifes ID card.

Bank book to prove 400,000 Baht in bank for at least 2 months before. In Prachinburi they also require you to keep the money for 3 months after. The bank book should be updated on the same date of the application. (I move 100THB in and out of the account on the day of the application or else it will be out of date)

A bank letter that should be dated on the day you submit your application, your bank should know what’s required but the letter should include: Your name, Passport number, bank account number and the balance

The bank letter should have the same balance as the bank book

Map location of house, hand drawn, I also give a printed Google map

They will call you to visit your home and may require a witness.

Photo's of marriage: In Prachinburi they want 4 photos of you have your wife: One outside the house showing the address, one in the bedroom, one in the kitchen and one the lounge

There is a Thai form: that will need to be filled to say you understand your be deported if you don’t comply with the visa

A second copy of all document

Fee1900 Baht

@Guy **********

which office?

@James *******

in Prachinburi you have to have 3 months after renewal, (ThaiWife) I know its not correct but its there rule, my point was more about it dropping below the required level where it was ok, seen as a mistake quickly put right.

On my Thaii Wife visa I took some money out of my account holding my 400KTHB seasoning fund, I put it back with 30 mins and it was OK with immigration, so i think it depends on the office

@Füty *****

in normal circumstances you should leave the country when your non b becomes void (no work permit) you need to fulfill the requirements fir a new extension based on what you choose, like married to Thai wife or over 50 years (so called retirement), the requirements are on the Thai Immigration website

Why not do it online?

Depends on where you are, Prachinburi want you to keep the money in the bank for 3 months after the ext is given, they check on the next extension, there probably an exeception.

I had the same problem in Prachinburi, but was aware of it

Last year they did not complete my exit within the 30days and I got a second one, also if you need reentry permit it also takes some space, it sounds like your be ok this year.