What are the financial requirements for renewing a marriage visa in Thailand?

To renew your marriage visa in Thailand, you need to meet financial requirements which include having 400,000 THB in your bank account for at least two months prior to application. Alternatively, you can also provide proof of a monthly income of 40,000 THB through international bank transfers for a total of 12 months. Note that this 400k requirement may not be necessary if you are applying from certain countries for a one-year multiple entry visa.