Step-by-Step Guide to Verifying a Genuine $20 Bill
| Security Feature | Location on Note | What to Look For | How to Check | Counterfeiter's Common Mistake |
|---|---|---|---|---|
| Security Thread | Embedded vertically, visible both sides | Text 'USA TWENTY' with small flag pattern | Hold to light; check UV glow green | Thread printed on surface, not embedded |
| Watermark | Right of portrait, visible both sides | President Jackson's portrait | Hold to light at angle | Watermark missing or printed, not embedded |
| Colour-Shifting Ink | Numeral 20, lower right corner (front) | Shifts copper to green when tilted | Tilt note back and forth | Ink does not shift colour |
| Raised Printing | Portrait and text throughout note | Distinctive texture you can feel | Run finger over portrait and text | Flat, smooth printing with no texture |
| Security Fibres | Embedded throughout paper | Red and blue fibres in paper | Look closely at paper surface | Fibres printed on surface, not embedded |
| Microprinting | Border of 'TWENTY USA' ribbon (first three letters) | Text 'USA20' along border | Use magnifying glass to read | Blurry or absent microprinting |
| Background Text | Right of portrait (front) | Blue text 'TWENTY USA' | Look at background design | Text missing or poorly reproduced |
Security Features of Genuine $20 Bills
A genuine $20 bill incorporates multiple security features that work together to prevent counterfeiting1. Understanding these features helps you verify authenticity quickly, whether you're a cashier handling dozens of notes daily or someone who occasionally needs to check a bill before accepting it.
The Security Thread
The most distinctive feature is the security thread—a thin vertical strip embedded in the paper, not printed on the surface2. This thread runs from top to bottom and displays the text "USA TWENTY" alongside a small flag in an alternating pattern, visible from both the front and back when you hold the note up to light2. Under ultraviolet light, the thread glows green2. Counterfeiters often print a thread on the surface rather than embedding it in the paper, which you can detect by feeling for texture or checking whether it appears equally clear from both sides.
Watermark and Color-Shifting Ink
Hold the bill up to light and look to the right of President Jackson's portrait—you should see a faint watermark of Jackson's face visible from both sides3. This watermark is part of the paper itself, not printed on top. On the front of the note, the numeral 20 in the lower right corner shifts from copper to green when you tilt the bill2. This colour-shifting ink is difficult to replicate and provides immediate visual confirmation of authenticity.
Paper Composition and Texture
Federal Reserve note paper differs fundamentally from ordinary paper: it is one-fourth linen and three-fourths cotton, with red and blue security fibres embedded throughout2. You can see these tiny coloured fibres scattered across the surface when you examine the bill closely. Raised printing gives genuine notes their distinctive texture2—run your finger over the portrait and you should feel the ink's texture, not a flat surface.
Additional Design Elements
Look for blue text reading "TWENTY USA" printed in the background to the right of the portrait2. Along the border of the first three letters of this blue ribbon, microprinted text "USA20" appears—you'll need a magnifying glass to read it clearly2. These details are often blurry or missing entirely on counterfeit notes.
For a broader understanding of counterfeit detection across all denominations, see our guide on Counterfeit US Currency: Detection, Laws, and What to Know.
How to Verify If Your $20 Bill Is Real
Verifying a $20 bill requires checking multiple security features in a specific sequence. Start with the quickest visual tests, then move to tactile and detailed examination. This layered approach catches most counterfeits within seconds whilst confirming authenticity through features that counterfeiters struggle to replicate.
Quick Visual Checks
Begin by tilting the bill back and forth whilst watching the numeral 20 in the lower right corner of the front—it should shift from copper to green2. This colour-shifting ink provides immediate confirmation and is one of the hardest features to counterfeit convincingly. If the colour does not change or shifts to an unexpected hue, examine the bill more closely.
Next, hold the note up to a light source. You should see two embedded features from both sides: a vertical security thread imprinted with "USA TWENTY" and a small flag in an alternating pattern2, and a watermark of President Jackson's portrait to the right of the printed portrait3. The security thread should appear as a continuous strip running through the paper, not printed on the surface. Counterfeiters often print these features on one side only or fail to embed them properly.
Ultraviolet Light Test
If you have access to an ultraviolet lamp, shine it on the security thread—it should glow green2. This test is particularly useful in retail environments where you handle multiple bills quickly. The absence of a green glow under UV light is a strong indicator of counterfeiting, though you should verify other features before concluding the bill is fake.
Tactile Examination
Run your finger over President Jackson's portrait and the surrounding text. Raised printing gives genuine Federal Reserve notes their distinctive texture2—you should feel the ink's ridges, not a flat surface. Counterfeit notes often lack this texture because replicating raised printing requires specialised equipment most counterfeiters do not possess.
Examine the paper itself closely. Federal Reserve note paper is one-fourth linen and three-fourths cotton, and contains red and blue security fibres embedded throughout2. These tiny coloured fibres should be scattered across the surface, visible without magnification. If the fibres appear printed on top of the paper rather than embedded within it, the bill is counterfeit.
Fine Detail Inspection
Look at the background to the right of the portrait—you should see blue text reading "TWENTY USA" printed in the design2. Use a magnifying glass to examine the border of the first three letters of this blue ribbon, where microprinted text "USA20" appears2. On counterfeit notes, this microprinting is often blurry, incomplete, or entirely absent because standard printers cannot reproduce such fine detail.
For additional guidance on detecting counterfeit currency across all denominations, see our guide on Counterfeit US Currency: Detection, Laws, and What to Know.
What Does a Genuine $20 Bill Look Like
Recognising the visual appearance of an authentic $20 bill helps you distinguish genuine currency from counterfeits at a glance. The design combines historical imagery with carefully positioned security features that work together to confirm authenticity.
Front of the Note
The front of a genuine $20 bill features a portrait of President Andrew Jackson centred on the note2. To the right of this portrait, you will see blue text reading "TWENTY USA" printed in the background—this text is part of the overall design and should appear clearly without magnification2. Along the border of the first three letters of this blue "TWENTY USA" ribbon, microprinted text "USA20" appears; you will need a magnifying glass to read this detail clearly2.
In the lower right corner of the front, the numeral 20 is printed in colour-shifting ink that changes from copper to green when you tilt the bill2. This numeral provides immediate visual confirmation of authenticity. The security thread runs vertically through the note and is imprinted with the text "USA TWENTY" alongside a small flag in an alternating pattern, visible from both sides when held to light2.
When you hold the bill up to light, a watermark of President Jackson's portrait becomes visible to the right of the printed portrait—this watermark appears from both the front and back3. The watermark is embedded in the paper itself, not printed on the surface, and should match the clarity and detail of the printed portrait.
Back of the Note
The back of the note features a vignette of the White House2. This image provides historical context and complements the front design. When you hold the bill to light from the back, you should still see the security thread with "USA TWENTY" text and the watermark of President Jackson's portrait23. These features confirm that the security elements are embedded throughout the paper, not applied to one side only.
The consistent visibility of the security thread and watermark from both sides distinguishes genuine currency from most counterfeits, where these features are often printed on the surface or absent entirely.
Common Mistakes and Misconceptions
When verifying the authenticity of a $20 bill, several common pitfalls can lead to incorrect conclusions. Understanding these mistakes helps you avoid them and accurately identify counterfeit currency.
Assuming a Single Security Feature is Enough
Many people believe checking just one security feature, such as the colour-shifting ink, is sufficient to verify a bill's authenticity. However, counterfeiters often replicate individual features convincingly, so relying on a single check can lead to accepting a fake note. To ensure accuracy, verify multiple features in sequence, including the security thread, watermark, and raised printing1.
Ignoring the Paper Composition
Some individuals overlook the importance of the paper's composition and texture. Genuine Federal Reserve notes are made from one-fourth linen and three-fourths cotton, with embedded red and blue security fibres2. Counterfeit notes often lack these fibres or have them printed on the surface. Checking the paper's texture and composition provides crucial evidence of authenticity.
Failing to Use Ultraviolet Light
The ultraviolet light test is a powerful tool for verifying the security thread's authenticity, as it should glow green under UV illumination2. Not using this test can lead to missing counterfeit notes that lack the correct UV response. If possible, incorporate a UV light source into your verification process to catch notes that pass visual checks but fail this critical test.
Misunderstanding the Legal Consequences of Counterfeit Currency
Handling counterfeit currency, even unknowingly, can have serious legal consequences. If you accept a counterfeit $20 bill, you may be required to report it to the authorities and could potentially face penalties if you fail to do so. Understanding the legal implications and knowing how to report suspected counterfeit currency is essential for anyone handling cash regularly.
Key Takeaways
To protect yourself from counterfeit $20 bills, remember to:
- Check multiple security features in sequence, including colour-shifting ink, security thread, and watermark.
- Verify the paper composition and texture by looking for embedded red and blue security fibres and raised printing.
- Use ultraviolet light to test the security thread's authenticity.
- Be aware of the legal consequences of handling counterfeit currency and know how to report suspected counterfeit bills.
For further guidance on detecting counterfeit currency across all denominations, see our guide on Counterfeit US Currency: Detection, Laws, and What to Know.