How to Detect Fake 100 Dollar Bills


Do you know there are many ways to spot a fake one hundred Dollar bill? The United States Treasury has so many security means they implement in their fight against money counterfeiting. They just have to do this because of the negative effect millions of fake 100 dollar bills that look real could have on the economy.

Do you know how to tell if an old 100 dollar bill is real? It will interest you to know that there are about 10 million dollars of fake bills in circulation across the United States.

The $100 bill is redesigned every decade, so the features that you might be looking out for will surely depend on the period the bill was issued. Bills issued from 2009 have more security details to look out for.

A physical look at the US $100 bill has the portrait of Benjamin Franklin at the front side and then the Independence Hall at the back of the bill.


When retailers are being paid with fake bills, it is quite saddening that they will bear the burden of the loss. And since counterfeiters are getting more advanced in their techniques, there are so many things that retail employees could be able to do to recognize there fake bills.

There have been many circulars by the United States Secret Service warning citizens of the country on the circulation of fake $100 bills in some states.

According to an agency, there is some fake $100 bill that started as an original $5 bill.

What the counterfeiters do is to use a technique that has to do with bleaching original currency and then changing the bills to make it look like $100 notes. Many businesses utilize special pens to identify these realistic fake bills, but these pens cannot provide a full confirmation of the authenticity of these fake bills.



The latest $100 bills are the ‘Series 2009’ and they have a lot of security details. Older bills are most of the times taken off circulation to hinder these counterfeiters from deceiving people. Although they are still legal tenders, so you might not really conclude one is fake if you get it. All you need to do is check the date on the bill.

The average $100 currency will be in circulation for about 7 years. Accordingly, the larger chunk of these older bills must have been out of circulation by this time. Nevertheless, you could have some stored at your home that you need to check out.


You will need to understand that the United States currency has a special feel. All the bills are printed on linen and cotton and not the usual paper. Also an original $100 bill should have a slightly shifted ink, which is more like a characteristic of the process of printing. If your job has to do with handling currency, then it will be in your best interest to develop familiarity with how a real $100 bill feels.

  • Feeling a bill may not be foolproof, however. Most skilled counterfeiters are involved in the bleaching of original bills and then make a higher currency print over it.
  • At the same time, counterfeiters don’t always find it easy to recreate  raised printing, so having the bill felt is a good first step.

It is mostly difficult for counterfeiters to duplicate the techniques that are used in printing real bills. One good area that you might also want to look out for is the portrait. Check if the lines are distinct and sharp. You might also check if the fine details blur and maybe appear so un-sharp


Another area that you will need to check is the serial number. You need to confirm if the serial numbers match and if they are perfectly aligned and spaced or they are a little bit wiggly. And also if you have more than one denomination that you are not certain of its realness, you need to check if the numbers on the bills are the same. All bills have their distinct serial number.


On bills higher than $2, you might want to hold the bill to the light and check out for the security thread – It is always a plastic strip that runs from the top to the bottom and embedded within the paper.

It is always on a different location on every denomination, so you might want to compare another bill to detect if it has been reprinted or bleached.

You also need to understand that all bills higher than $10 possess color shifting ink. What you need to do is to just tilt the bill and you will notice the change in color.

Another method on how to detect a fake $100 bill is checking out for the Franklin hologram, which is always located at the right side of the front page. If the $100 bill is held up against the light, the Franklin hologram will appear.

Leave a Reply

Your email address will not be published. Required fields are marked *

five + 7 =