They hunt for the one correct document, find conflicting answers online, and conclude the rules are arbitrary. The rules are not arbitrary, they are just discretionary. Each Royal Thai mission applies them slightly differently, which is why the forum answer that worked for someone in Ho Chi Minh City may not match what Vientiane asks you for.
What travels across all of them is coherence. Your accommodation evidence should agree with the rest of your file: same name, same dates, same address, and a stay that makes sense for the length of visa you are asking for. A file that contradicts itself is the thing that gets looked at twice.
A booking gets you the visa. It does not get you a TM30 receipt, a 90-day report, or a Thai bank account, all of which want a real residential address with a cooperative owner behind it. People solve the application and then discover they have to solve the address again six weeks later. Solving it once, properly, is less work.
A lease is the only one of these that answers three questions at once: where you live, that someone has agreed you can live there, and for how long. It is also the document that puts a named landlord on the hook for the TM30, which is the obligation that quietly governs everything that comes after.
The catch is that a lease is also the one you can get wrong. A landlord who will sign a lease is not automatically a landlord who will file paperwork, register you correctly, or return a deposit. Those are separate promises and they are worth extracting separately.
Tell me your dates, budget and district. You get three places whose owners actually do the documents, and a straight note on what each one will and will not put in writing.
Get the shortlist →Next: The TM30, and who has to file it · Why the six-month lease matters · What a DTV actually costs
Not immigration or legal advice. This page explains what a landlord and a lease have to do. For the application itself use a licensed agent or the official channels. We rent condos, that is the part we know. Rules checked August 2026; both the deposit regulation and the DTV financial test changed within the last year, so check the date on anything you read about this.