Is it illegal to copy U.S. paper money?
It is illegal to make any color copies of any kind of small-size U.S. notes. They may only be copied in black and white and must be larger than 150 percent of the note size, or less than 75 percent of the note size. Large size notes may be copied in color, but the official regulations setting out the specifics have not been issued. To be on the safe side, use the 150-75 formula set up for black and white photos. Writing “COPY” or something similar, or copying only a portion of a note does not exempt you from the copying law. The act of copying is the crime.