How do banks check for counterfeit money?

There are several different ways. First, large amounts go through a cash counter that can tell if a bill is counterfeit and it will get rejected each time you try to put it through. But the number #1 way is by training. read more

If the Bank is in an area where there is a high concentration of counterfeit bills then they check. Tellers are handling money all the time and they can tell when a note does not feel the way it should. read more

In addition many banks put incoming notes through a machine to detect fakes. These machines may check for colour (machines can analyse colour for more accurately than the human eye), magnetic ink, UV properties, IR properties, some currencies have encoding in the metallic stripe similar to the way information is recorded on a tape player. read more

Best way to do this is do the transaction when the banks are open and have the buyer write a check and clear it at the bank that it was written on (with the buyer there). Clear it by converting it to cash at that bank. They will immediately check the account it is being drawn upon for sufficient funds. read more