To check if a 100 dollar bill is real,start by holding the bill up the light to view the embeddedthread next to Franklin which reads “USA” and“100.” Next, look to see if the ink to the left of theserial number changes from copper to green when you move thebill around.

Secondly, how do you check if money is real? If they are the same, then they are counterfeitnotes. Look for security features in all denominations, except the and . The easiest way to spot a fake , , , or bill is to look for the following security features, all of whichare very difficult to fake.

Also asked, do the old 100 dollar bills have a watermark?

Check for watermarks. A watermark bearing the image of the personwhose portrait is on the bill can be found on all , ,, and ** bills** series 1996 and later, and on bills series 1999 and later.

What happens if you take a counterfeit bill to the bank?

Depositing counterfeit money into a bankaccount is illegal, even if you do not know it isillegal. Money passes hands every day, so unless youknew the money was counterfeit, you probablywould not go to jail. However, if you try to depositmoney and the bank finds it is fake,you will lose the value of the bills.