What should I know before returning to Thailand after leaving on an expired volunteer visa?

Why don’t you just apply for a new passport ?

I was on volunteer visa, then covid extension. I left to my home country (US) for 6 weeks, came back no problems.

Some member in this group thinks because I came back through Phuket I didn't get hassled, that BKK is bad but Phuket is not. I do not know that to be true, just that I had no issue coming back through Phuket.

Also, noteworthy, on my return to Thailand I had a tourist visa, if that makes a difference.

Best of luck.

Okay, face it thousands of people got those bull shit, back door, under the table "pretend to volunteer" volunteer visas from foundations they can't pronounce let alone ever volunteered at a single day

TO A PERSON almost everyone has gotten put thru the proverbial wringer comin back in with one of those volunteer visa/extension stamps in their passport.

I'd say BUY a single entry tourist visa where ever you are BEFORE you try to wing your way back here. Have the 3 proofz when you land here,

proof of funds (20K baht or the equivalent in CASH)

proof of onward travel (back to the country your passport comes from in 60 days)

proof of lodging (where you're going to stay once you get out of the Test&Go hotel)

With those things you're as prepared as you can be to enter the country and even with all that, you still are gonna get grilled and taken aside about that visa/extension stamp

Believe me not one immigration officer looking at that stamp will be fooled into thinking it's a visa/extension gotten above the table, the correct way, to a person they will know it was a hand your passport and a pile of baht to an agent visa/extension gotten under the table 🙁

My husband and I were on Volunteer Visa and came back after 3–4 days in Cambodia with US passports. They asked for a return ticket to US in 30 days before they stamped a 30 day visa exempt entry at customs.

When you say "one of those visas", you're talking about the bogus agency-obtained visas? If so, was it cancelled before you left?