If you still obtain an income affidavit from your embassy, you only need to prove a monthly income of at least 40,000 baht — without a lump sum of 400,000 baht in a Thai bank. For retirement it’s at least 65,000 baht a month.
To apply for an METV, you must formally document your need and provide at least two entry and two exit tickets. Enforcement of this requirement varies between embassies and consulates: some require two entries and two exits, while others issue an METV with only a single entry ticket. For a precise answer, it is recommended to contact the relevant embassy to confirm their specific requirements.
Alternatively, you may also choose to stay for 90 days by applying for a 30 days local extension before each departure.
Regarding bus or train tickets, most consulates/airlines would probably accept them as long as it is clear that the ticket is for a journey that crosses a border and the final destination is in the neighboring country.
When applying through the embassy in London with a UK passport, you may simply upload the ID page of your passport as proof of your current location, also your UK driver’s license.
The Non O is also a long-stay visa. If you plan to stay in Thailand for more than 90 days, you only need to extend your stay by one year at immigration and present either an income confirmation from our embassy or proof of funds in your Thai bank account. It’s ok to first enter on a Non O-A for a year or two if you wish and use the insurance that seems advantageous, but if you intend to stay in Thailand long-term, it’s better to later switch to a regular 90-day Non O. That way, you won’t be tied to the somewhat restrictive health insurance approved by Thai immigration for the rest of your stay.
som det pekes på med fortsatt mulighet til å inntektsbekreftelse fra ambassaden eller penger på bank i Thailand og forlenge oppholdet i Thailand med den helseforsikring du vil.
There is no need to make it more complicated than it is. He is referring to a retirement visa—not a temporary residence permit—and the requirements for monthly income. Whether he chooses to apply for a Non-O or a Non-OA visa, the monthly income requirement is exactly the same.
There are only four types of retirement visas, and the requirements are generally consistent across the e-Visa portal, irrespective of the applicant’s nationality or country of application.
But he want to apply for the visa with income and only need to prove three months of income, unless he applies inside Thailand and his embassy don’t offer to provide affidavit letter for income.