Can I still spend old US dollar notes held for l5 years?

Yes, you can still spend old U.S. dollar notes regardless of how long you've had them, as long as they are not damaged or mutilated. The U.S. dollar remains legal tender, and banks will accept older notes for deposits or exchanges. However, if you have extremely old notes, such as those issued before 1929, you might want to check their collectible value before spending them.