Check recipients can either decide to accept or not accept a post-dated check.
A recipient can also check with her bank to see if it will cash it before the check's date, which the bank should not do if the writer has requested it doesn't. In West Virginia, for example, the law prohibits someone from requesting or accepting a postdated check if he intends to deposit or cash it before the check's date.
Some states, including California and Georgia, place responsibility on check writers to ensure their checks are not cashed or deposited too quickly.
Other states, like West Virginia, place responsibility on the person the check is written to.
You can land in legal trouble if you intentionally postdate a check knowing there will be no money in your account or the account will be closed by the check's date.
To defraud someone in such a way for goods and services is illegal in all states.
State and federal laws cover the cashing and depositing of postdated checks, and laws vary from state to state.