Is it necessary to book a return ticket when moving to Thailand, or is a one-way ticket sufficient?

When moving to Thailand, the necessity of booking a return ticket largely depends on the visa type you plan to use. If arriving on a tourist exemption, a ticket out of the country is required. For those considering longer stays, like a year or more, it may be advisable to consider a single entry visa. If over 50, a multi-entry Non-O-A visa allows entry on a one-way ticket, but you should be aware of the 90-day reporting requirement associated with such visas. If there's potential for staying longer than three months, acquiring a Multiple Entry Tourist Visa (METV) while still in your home country is a wise option.