When does the 6-month tourist visa start: upon entry or issuance?

The 6 month Multiple Entry Tourist Visa (METV) is valid for 6 months from the date it is issued by the embassy, not from when you enter the country. To apply for this visa, it's important to consider how far in advance to submit your application. Additionally, you do need an outbound ticket to exit Thailand, which typically must be for a flight within the initial 60 days of your stay.