What are the income documentation requirements for a one-year extension of stay in Thailand for expats over 50?

Once and for all I try to explain it again, read it twice, three times or more if you can not understand it. For an Extension of Stay based over 50 years of age you need or option 1) minimum 800.000 Thb at least 2 months prior till at least 3 months after your application date and the rest of the year not less than 400.000 Thb. OR option 2) The income affidavit from your Embassy with a monthly income of minimum 65.000 Thb OR option 3) 12 monthly foreign deposits into your Thai bank account of minimum 65.000 Thb. To explain it even more: Option 3: Every month you need to show a minimum deposit into your Thai bank account and this money has to come from abroad, easy way is just tell you foreign bank to send money into your Thai bank. Harder way is using cheap options like transferwise, as this depends on your bank, sometimes it comes with the International transfer code and sometimes it comes with a national transfer code. This page is not for how do I get the International transfer code every month on my deposit into my account, you sit down with your bank to discuss the possibilities and you can visit your Immigration Office if using all kind of cheaper ways to bring money into Thailand but not being noticed as International transfer is according their requirements. This page is for Visa advice, we can not tell you if your Immigration Office accept the way you do your banking.