And it will cost you THB 1,900 upon complete submission and will be stamp under “consideration for 30 days” where you will come back to collect your one year extension of stay stamp.
Extension of stay in TH based on marriage to a TH citizen:
1. THB 400k “season” for at least 2 months in a TH bank account or embassy affidavit stating you have an income of THB 40k per month overseas prior to application.
2. Copy of your passport and wife sign by her and yourself.
3. Copy of valid non O visa page and last entry stamp to TH sign by yourself.
4. Copy of wife tabian baan / ID card sign by her, birth certificate of child sign by both of you.
5. One page photos of you , wife and kid showing house number and inside house in the room or dining table etc.
6. Copy of marriage certificate sign by both of you.
7. Copy of TM. 6 arrival departure White card.
* Bring all original documents during application*