What documents do I need to show at the border when returning to Thailand with a multiple entry tourist visa?

As I wrote 8 hours ago, the rules are the same for every visitor to Thailand. Only with a longer history of living or staying inside Thailand using the incorrect visa for that purpose of stay, the chance to getting asked will only gets bigger

My understanding is that you are legally required to have baht on you when you enter Thailand, but it is one of those things where they don't enforce it unless they are looking for a reason to deny you, and they don't tend to check unless you have a ton of sequential tourist visas and you are heading to the islands or some place where work visa abuse is common. I wonder not about the exact laws, but the current tendency to check for these particular documentation for metv holders entering via....which border are you entering Kim?

Are you guys all responding about details required for reentry with a regular single entry tourist visa or the multiple entry visa specifically?

onward travel does not mean it has to be a flight, accommodation booking for the first days is enough as they know tourists do like to go from one touristic place to another.

For tourist visa defenitely. If they do not ask and you have the documents. Nothing will happen. If they ask and you have no documents, you will be in a trouble. Simple is tbst