How To Check Counterfeit Money With Pen: A Simple Guide

Counterfeit money poses a significant threat to businesses and individuals alike. One effective way to detect fake bills is by using a counterfeit money detection pen. In this article, we will guide you through the steps of using this handy tool to safeguard your finances.

Understanding the Counterfeit Money Detection Pen

Counterfeit money detection pens are widely available and are an excellent tool for quickly identifying potentially fake bills. These pens contain a special ink that reacts with the starch found in most paper used for legitimate currency. When applied to a bill, the ink will change color based on the starch content, indicating whether the bill is likely genuine or counterfeit.

Step-by-Step Guide to Checking Money with a Pen

1. Acquire a Counterfeit Money Detection Pen

Ensure you have a genuine, reliable counterfeit money detection pen. It’s crucial to get your pen from a reputable source to guarantee its effectiveness.

2. Familiarize Yourself with Genuine Bills

Before using the pen, it’s essential to become familiar with the characteristics of genuine currency. Study the specific features of the bills you handle regularly, such as the texture, watermark, security threads, and holograms.

3. Test on a Known Genuine Bill

Start by testing the pen on a bill you know is legitimate. Apply a small mark in an inconspicuous area, like the border or a blank portion of the bill. The pen’s ink should stay yellow or light brown, indicating that the bill is genuine.

4. Test on Potentially Counterfeit Bills

When you receive a bill that raises suspicion, follow these steps:

  • Rub the Pen on the Bill: Apply a small mark to the bill in a similar manner as you did with the known genuine bill.
  • Observe the Reaction: If the mark remains yellow or light brown, it’s likely a genuine bill. However, if the mark turns dark, it suggests a higher starch content and may be a counterfeit bill.
  • Exercise Caution: Remember that some legitimate bills may still react with the pen, particularly older or heavily worn notes. Always rely on multiple verification methods for conclusive results.

5. Additional Verification Methods

While the counterfeit money detection pen is a valuable tool, it’s not foolproof. It’s recommended to use it in conjunction with other methods of authentication, such as UV lights, watermark inspection, and checking for security features unique to your currency.


Using a counterfeit money detection pen is a simple yet effective way to quickly identify potentially fake bills. By following these steps and combining this method with other verification techniques, you can significantly reduce the risk of accepting counterfeit money, ensuring the security of your financial transactions. Remember, vigilance and knowledge are your best allies in the fight against counterfeit currency.

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