Do I need 6 months left on my passport to renew my marriage visa in Thailand?

To renew your marriage visa (M Visa) in Thailand, it is not mandatory to have at least 6 months remaining on your passport. However, it's advisable to renew your passport before seeking an extension. The immigration office will only grant an extension valid until the expiration date of your passport. This means if you attempt to renew with a passport expiring in April, your visa will only be extended to that date, potentially leading to complications.