If the Government owes you money and you don't take it then its unclaimed money which is set aside. This can happen with Government benefits, banks, credit unions, pensions and so many other sources of income that you might have forgotten about.
Fortunately there are ways to check if you have unclaimed money. It's important to be aware of scams and tricks where agencies ask you for an upfront fee for money they claim to be yours. 99% of the time these agencies are con artists so tell them where to get off.
The First step is to check State by State to see if you have any unclaimed money. You can also check this for your parents and siblings in one go if they permit it. If you've lived in multiple states be sure to check. You can check State by State for unclaimed Money on the bookmark below.
Unclaimed Government Money State by State Search