@Alessandro *********

I think the birth certificate is required by some embassies in order to get the affirmation to marry.

Two years ago, when I got married on Phuket, I needed a certified copy of my birth certificate and a certified copy of my dissolution of marriage to my first wife. Both may have been needed by the US Embassy in Bangkok in order to give me their clearance to marry. I think I needed two certified copies of each.

@Lisa ***************

true. I just like to be prepared so I don’t have to step aside.

@Graeme *****

20,000 baht. But, as you said, they seldom ask unless you look disheveled.

@Andi **********

The ticket doesn’t have to be a return ticket, just anywhere out of Thailand.

@Vinay *******

It’s extremely rare to get asked at Immigration. It’s supposed to be dealt with at check-in.

All airlines are supposed to deny boarding if you don’t have an onward ticket. In reality, some agents do and some agents don’t. Personally, I’ve been asked and not been asked. I’ve also heard that some agents don’t accept an onward bus or train ticket. That doesn’t make sense, but it’s possible. Most people “rent” an onward ticket from onwardticket.com or one of their competitors. It’s a real ticket that is automatically cancelled the next day or two. $15US or so.

Your question cannot be answered without knowing which country's passport you hold.

@Robbie *****

Yup. They are real tickets that are automatically cancelled after a short period.

It’s likely, not 100%, you will be denied boarding without an onward ticket within the 60 day visa-exempt period. You should consider “renting” an onward ticket from onwardticket.com or one of their competitors. They are typically $15US and, if purchased just before you leave, are automatically cancelled after your flight.