What funds are required for extending a marriage visa in Thailand: 800k baht or 60k baht monthly deposits?

When applying for an extension of a marriage visa in Thailand, applicants have several financial options to demonstrate their eligibility. They can show either a minimum of 400,000 baht in a Thai bank account that has been maintained for at least two months prior to the application, or provide an income affidavit from their embassy proving a monthly income of at least 40,000 baht. If the embassy does not provide such documentation, showing 12 months of consistent foreign transfers of at least 40,000 baht per month into a Thai bank account is also acceptable. Additionally, holding a work permit and demonstrating tax contributions with a minimum salary of 40,000 baht per month is an option.