Borderbounce Aranyaprathet/Poi Pet. 20-21 April.
This border still enforce the policy that you must stay In Cambodia one night, no changes.
Cost Visa Cambodia: 1200 bath. Buy it on the right side of the street, the first house with the sign visa service, after you exited from the Thai immigration border and passed the first buildings.
Continue down the street after this and walk in to the office marked arrival. Get the arrival/departurecard, give it to an immigrationofficer with the passport and they will stamp you in to Cambodia.
Cost of stamps: Free
Day after when you return to thailand, visit the immigrationoffice for departure, other side of street compared to the arrival and 100 meter further in to Cambodia.
Cost of stamps: Free.
If you are in hurry in the morning, give one of the uniformed immigrationofficers 200 bath and he will go in the backdoor and stamp it for you.
Return to thailand immigrationoffice to stamp in to Thailand.
If you choose to use the ununiformed visa service guy's that try to contact wherever you go, they will help you, but also rip you of both fee and tip.
I wrote this because I earlier saw statement that it was a fee to pay of returning to Thailand in less the three days, else free. That is not correct. Stamps are free, it is the visa service guy's who want your money. Or, if you want to pass the que of people waiting to get their stamps, that too cost money.
This is related to make borderbounce with a Thai visa with multiple entry.
Not much to comment about this, so I recommend to close it for comments.
TLDR : Answer Summary
This post discusses the process of border bouncing at Aranyaprathet/Poi Pet, including the one-night stay requirement in Cambodia and associated costs. It explains how to obtain a visa for Cambodia, the procedure for stamping in and out of both Cambodia and Thailand, and dispels a common misconception about fees for returning to Thailand. The author emphasizes that stamp fees are free, highlighting the potential for scams from ununiformed visa service providers. Comments offer further advice on obtaining e-Visas and avoiding long queues.