How much of a torn bill do I need to get it replaced?

To replace a torn bill, the U.S. Bureau of Engraving and Printing generally requires that at least 51% of the bill be intact and recognizable. If the bill is significantly damaged but meets this threshold, you can take it to a bank or submit it to the Bureau for replacement. If less than 51% remains, it may still be possible to receive a value based on the condition of the fragments. Always check with your local bank or the Bureau for specific guidelines.