What do US citizens need to show at customs upon arrival in Bangkok with the new 60-day visa exemption?

Depends whether you have anything to declare to customs 😜 but more than likely, all you'll need is your passport. Can be asked to show the equivalent of 20,000฿ in cash and accommodation details. Though Seldom, if ever asked for

At immigration just show your passport. They can ask for proof of funds and proof of travel out of Thailand but it’s very rare for them to do so.

I went in August, no one ask to see anything 🙈. Red customs was closed so I walked straight thru also

Pass port

I've been going there for 29 years and never been asked to show anything

You don't have to show them anything, when you arrive simply hand over your passport and he will stamp it, with the arrival date and your departure date, not sure why everyone is talking about a departure ticket or even where your accommodation is, the accommodation question was on the old arrival cards but they haven't worried about that for years,,in 17 years never been asked for the return ticket. Basically it's a give me when you arrive , nothing to stress about

If you think it's a scheme then don't go to Thailand!!! DIY self de-population should do it....

In 99.99% of the cases you only need a passport

For me passport n purpose of travel n I said travel n it was over.that quick

At Customs, you better walk through green and show them nothing. But before you walk through Customs, you need to pass Immigration. There you show your passport (must stil have a minimum validity of 6 months) and you will get stamped in on a visa-exempt entry with a 60-days stay permit. Sometimes Immigration wants to see your boarding ticket. i.e. the flight number you arrived with. ALWAYS check the stamp immediately for the 60-days count, on the spot, as Immigration officers are humans as well and humans sometimes tend to make mistakes

Keep your boarding pass with your passport. They sometimes ask for it. Rarely do they ask for an onward ticket, 20,000฿ equivalence in cash, or proof of accommodation, but it is best to cover all the bases.

At customs? Nothing at all

@Vova ******

onward tix ฿20k cash and your accomodation

Customs is about goods. Do you have anything to declare?

Immigration asked for passport and proof of onward travel the last time I entered Thailand so be sure to have it.

Your pennies

Formally you’ll need to show an onward ticket within 60 days, some days accommodation and funds equal to 20K baht in cash. This is rarely checked at the immigration, but you might risk that your airline will ask to see an onward ticket within 60 days during check in. So in case you plan to stay longer and apply for an extension in Thailand you might need to buy a cheap ticket out within 60 days anyway. If your return is within 60 days is of course no issues at all.