Instructables
Picture of How to tell if a Dollar Bill is Real or Fake
In this instructable, I will show you how to tell if a dollar bill is real or fake, using household materials.
 
 
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Step 1: You will Need...

Picture of You will Need...
You will need:
A dollar bill
Magnets
 

Step 2: Folding

Picture of Folding
dollar bill real or fake pics and vid 003.jpg
Fold the left side of the dollar bill about 1/4 the way in. Unfold to a 130 degree angle.
 

Step 3: The Magnets

Picture of The Magnets
Slowly bring the magnets close to the 1 in the top left corner.
If the dollar bill moves toward the magnets, the bill is real.
 

Step 4: How does it work?

Picture of How does it work?
The dollar bill has magnetic ink which is attracted to the magnets. This is done to prevent counterfeit bills.
 
chuckr444 years ago
I'm in the US. I got a counterfeit $5 bill from Taco Bell as change. It looked like it was made as a joke by a kid with an inkjet printer, but it sure fooled the Taco Bell employees.


woody558 (author)  chuckr444 years ago
How do you know it is fake?
 MICR has been around for about 30 years. Lemonie is right, why bother. The dollar is probably only worth $.15. The paper it's made from is worth more.
 its actually not made from paper. its a blend of cotton and linen.
nnygamer4 years ago
But bleaching a $1 and printing a higher denomination on the blank would fool the magnetic test.
You can't bleach magnetic materials to white and have them retain magnetic properties.

L
lemonie4 years ago
Surely no one bothers counterfeiting 1$ bills?
Would you consider asking shop staff to wait while you got your magnet out and tested your change...?

L
smessud4 years ago
Do you know if the use of magnetic ink is recent?
Would that test work on bills emitted some 20 years ago?