Does anyone know my tax obligations if I were to move to Thailand under a retirement visa?

Apologies if this has been covered before but my question is, what constitutes as an Income Certificate (original copy) for a Retirement Visa? The 800k THB deposited in a bank is easy to prove and is currently what I am doing but I also receive income on investments and a monthly fee for consultancy services but paid into a bank account in another country. I currently transfer more than 65k per month into my Bangkok Bank account for monthly expenses from overseas but it’s not from a retirement plan or anything of that nature of which presumably is backed by some form of official paperwork. If I can find a way to show the authorities that I have sufficient non-pension based monthly income (which I have) then I can release the 800k that just sits there doing nothing. Any help or advice appreciated.

Problems certifying money came from overseas.

Today applied for 12 month extension of stay based on marriage. Now on 90 day visa to visit Thai family, got back from UK September, quarantine etc. Many years have used embassy letter to show UK income enough, last year used SCB 12 month statement and letter, backed up by my UK bank account statement and 12 months of Transferwise statements. Well over 40 K every month,

Problem this year is officer will only look at SCB official statement, want statement from SCB for 12 months certifying that at least 40K came from overseas bank to SCB account. I have used Transferwise for many years. My money goes to Transferwise UK account and Transferwise is sending to Kasikorn bank who forward to my SCB account, so SCB cannot see money from abroad and so will not certify. Went from immigration to SCB direct. So now stuck. Immigration officer said busy this week, come early on Monday for queue and bring SCB certification which I cannot get. So what do I do.

Thinking of writing it all down, from my pension income to my UK bank, Uk bank to Transferwise, Transferwise to SCB via Kasikorn, each transaction with monthly and year totals. maybe translate to Thai??

Also they insisted on all 12 months, which is not a problem for me, but coming in on new 90 day, I thought 2 months would be enough

Hi everyone

I wish to apply for non-O in Thailand, currently on 60 day visit family extension. I have been informed 40,000 baht monthly income, how many months statement ? and does it need to show deposit from overseas ? I have statement showing this amounts deposited in my account.

Can someone confirm for me please - extension by marriage.

Does the 400k need to be shown as originating from overseas ? Currently shifting via Transferwise & like many , it doesn't always show as FFT on my bank bank. TIA