What visa does my wife need to join me in Thailand if I retire at 50 and she is under 50?

When relocating to Thailand for retirement at age 50, your wife, who is under 50, will require a dependent visa to join you. Suggestions include applying for the Non-O visa from the US, which allows for the issuance of a dependent visa for your wife once you are in Thailand. Another option discussed is the long-term resident (LTR) visa if you meet the income requirements. It's necessary to provide proof of your marriage (such as a marriage certificate). Additional advice includes exploring teacher work visa options if she is interested, although that may not align with the intent to retire.