Can I use a shared bank account with my wife for the 400K baht requirement in Thailand?

Correction - Or equal to 40,000 Baht as applies for a Non Imm O Marriage.

With social security deposits... You can have direct deposit to a limited access deposit account at Bangkok Bank (no other bank)... Or you can use an American Bank for Direct Deposit of S.S. funds - then use International Funds Transfer self initiated to any Thai Bank.. Once transferred to the Thai Bank you can count this as money equal to 65,000 Baht monthly income.. Currently you can go to the American Embassy in Bangkok and sign a Sworn Affidavit that you receive U.S. Dollar transfers to you in Thailand equal to or greater than 65,000 baht in monthly transfers.. Currently no financial proof required.

You can use a “joint account” but Immigration will only credit 50% of the deposit to the application.

Some immigration offices allow joint accounts BUT if they do the amount in the account must be double the requirement. So for marriage you'd bank 800K baht. Their reasoning is half is yours and half is your wifes.

Also keep in mind, the fact that she'd get the money in the account if something happened to you (as a beneficiary) Is not the same as having a joint account :)

You can use a monthly income method instead - equal to 40,000 per month.

Funds in CDs are not allowed

In Thailand the funds have to be in a liquid account such as a savings account

First time applicant 3 months age of the required balance. Second Application is 2 months... as Corrected to 2 months in both situations

The money has to be in a liquid account in your name. A CD cannot be used. generally in Thailand Itvis just a savings account

Account has to be in your name only. Don't know what a CD is.