Can you use a 1000 dollar bill?

The $1,000 bill is no longer in circulation and was officially discontinued by the U.S. government in 1969. While it is still considered legal tender, it is primarily of interest to collectors and is rarely used in transactions. If you possess one, you could technically use it for payment, but finding a vendor willing to accept it would be quite challenging. Most people would prefer to exchange it for smaller denominations.