What documents are required to apply for a Non-Immigrant O visa for individuals over 50?

or if you're in Denmark you can apply ONLINE with the eVisa website here and you want these choices, as the "retirement" 90 day Non-O visa IS a choice you can pick

Just get a single entry tourist visa from the consulate come in get stamped in for 60 days and then apply for the Non-O visa and the year extension INSIDE the country at your immigration office

That's how you do it

Applying in Thailand or in another country?

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NON-O (Basic)

The applicant must be over the age of 50 and retired. Those who are above 50 but have not yet retired can not apply for this type of visa; they are advised to apply for the O-A visa, instead.

Pension notification with a monthly net amount of not less than 9,000 DKK per month for single entry and 14,000 DKK per month for multiple entries. If other forms of monthly income, e.g. interest earning or dividends, are submitted instead of pension payment, the applicant must also provide proof of their retirement status.

If the monthly net amount of pension is lower than the figures stated above, a copy of bankbook with the remaining balance of at least 85,000 DKK is required.

Pension certificate

A bank statement

Proof of health insurance that covers the whole duration of stay in Thailand. The health insurance policy must have coverage not less than 100,000.- DKK (400,000.- THB) per policy per year for Inpatient, and not less than 10,000.- DKK (40,000.- THB) per policy per year for Outpatient.

In case the applicant wishes to apply for a Non-Immigrant visa for the spouse and the latter does not have enough pension income for his/her own application, the applicant may submit a copy of the marriage certificate as proof of relationship and how the income will be shared during the stay in Thailand

Proof of your accommodation in Thailand: A Copy of hotel reservation/ rental contract/deed. In case of residing with a family, an invitation from the host family along with a copy of their undersigned Thai ID or house registration is required. The name of the applicant must indicated clearly. Invitation Letter Form (Thai) Invitation Letter Form (Eng)