Credit Policy for businesses and how to extend credit and manage credit risk

If you really think about it, a post dated check is not really a "Good check". It is "bad" until whatever date it has on it.  So you in reality are accepting a "bad check" if you accept a post dated check. 

The law states that if you do accept a post dated check, you must notify the writer of the check in writing, within 5 days  of your intent to deposit this check. 

It is not illegal in some states to solicit a post dated check from a customer who is past due but I would not recommend it.  In Massachusetts state law forbids the solicitation of postdated checks.  Check your local laws to make sure you are in compliance.