What is the best way to prove a permanent income stream for a Thai Non-O visa based on marriage?

Well mostly for visa they require 800k baht for non o not sure about thai marriage. But it should be easy to get a letter from your embassy here proving your income. You fill in a few forms send you Financials and they'll provide you with a letter for immigration. Hope that. As I said I'm single so non sure on thai marriage visa.

I’m just looking at the same

Enter on a e visa for 60 days (apply to Thai embassy in aus) then extend for 30 days…..I believe the extension is only 30 days not 60

Easy! Get a Centrelink Payment statement online if you have my.gov account. It takes 1 minute. If you don't have my gov account search the internet and sign up. As easy as 1,2,3. Good luck!

65k per month or 800k in a Thai bank account. These are the rules. Not sure about being married to a Thai though. Probably different rules.

The best route is to deposit 0baht in your bank account and forget about it.

May be the requirements are different for the visa you want, but for the LTR visa, here are things that were useful to prove retirement income:

(1) copies of tax returns (2 most recent years) showing your pension income or (2) copies of an official tax forms (2 most recent years) reported to you and the government indicating your pension income (2 most recent years). I also had a letter from my former employer stating the amount of my pension benefit. The letter was not necessary and was NOT sufficient without other documentation. If the tax documents were not available yet they accepted 12 months of bank statements showing the monthly deposits. Regarding the bank statements, I also provided a cover letter with a summary spreadsheet giving the date of each deposit, the amount deposited and the name of the payor so they could easily match up that information with the bank statements. The letter detailed any discrepancies between the nominal benefit amount and the actual deposit for routine things like tax withholding.

Where you have your income ? I had my one year long term visa just showing my bank and pension statement in my country. Together those was enough. Maybe your situation is different.

The only way you can do it the first year is with bt 400,000+ in your bank account in your name only, then during that year have at least bt40,000 deposited into your Thai bank account for the next 12 months from an overseas source to use for your second year extension That is the only option you have.

do a non O based on retirement in Australia first and you will need 400 or 800 k in the bank for the first extension then the income in a Thai bank every month for at least 12 months. Australian embassy does not do proff of income and has not for many years now

I think it's 65k

Why not get your Non-O Visa in Australia before travelling?

You can only extend 30 days, your airline might require you have a means of exit within 30 days i.e exit flight, bank statements and regular transfers to your Thai account of over 40k. Probably easier to apply for a 90 day non-o in Australia then extend once in Thai . It'll make opening a Thai bank easy and then getting your money transfers in etc as proof.

Many offices will require you to take the 30 day tourist extension before the 60 day Thai family extension.

You need to find out if the Australian embassy in Thailand does income verification. Embassy certified income is the ONLY income you can use for your visa application and first 1-year extension. If your embassy doesn't do income verification then you have to do 400,000 in your Thai bank account.