How long does the ฿800,000 need to be in my account before applying for a retirement extension in Thailand?

The original poster (OP) seeks clarification on the financial requirements for changing their visa extension reason from 'married to a Thai' to 'retirement'. They are specifically asking whether the ฿800,000 must be maintained in their bank account for two months or three months prior to applying for the extension. Responses indicate that different immigration offices may have varying requirements; some require the funds to be in the account for three months before application, while others may adhere to a two-month rule. Additionally, there are stipulations regarding maintaining the balance after the extension is granted.