Ever wondered how is paper money made before it ends up in your wallet? The U.S. Bureau of Engraving and Printing produces millions of notes a day, and the process is far more involved than most people realize. Here’s a look at how U.S. currency is printed, distributed, and eventually retired — using the $20 bill as an example.
What Is a $20 Bill Made Of?
A $20 bill starts as part of a large sheet of specialized paper — and despite what many assume, it contains no wood pulp at all. Currency paper is made from a blend of:
- 75% cotton
- 25% linen
This blend is combined with special watermarks, embedded blue and red fibers, and a security thread — features built in specifically to make U.S. currency harder to counterfeit.
Every blank sheet is tracked from the moment it leaves the mill until it’s printed, with entire shipments continuously reconciled to make sure none go missing along the way.
How Dollar Bills Are Printed: The Four-Stage Process
U.S. currency printing happens in four distinct stages, using some genuinely massive equipment.
1. Background Printing
Offset presses — over 50 feet long and weighing more than 70 tons — print background images and colors on both sides of the sheet simultaneously.
2. Back-Side Detail Printing
After 72 hours of drying, Intaglio presses (40 feet long, 50 tons) print portraits, vignettes, scrollwork, numerals, and letters on the back of the sheet.
3. Front-Side Detail Printing
The sheets dry for another 72 hours in secure, guarded cages before the front side receives the same detailed Intaglio printing.
4. Serial Numbers and Seals
Finally, a letterpress adds the serial numbers, Federal Reserve seal, Treasury seal, and Federal Reserve identification numbers — the last details that make each bill unique.
Cutting and Wrapping: How Currency Production Scales Up
Once fully dry, printed sheets are gathered into stacks of 100 and cut using a specially designed guillotine cutter. From there:
- Each stack of 100 $20 bills is wrapped in a paper band
- Ten of these stacks are machine-counted and shrink-wrapped into a bundle
- Four bundles are collated, barcode-labeled, and shrink-wrapped again into a brick of 4,000 bills — worth $80,000
How New Currency Reaches Circulation
The Treasury Department ships newly printed $20 bills to Federal Reserve Banks, which distribute them to banks and savings institutions — primarily in exchange for old, worn-out bills. From there, the new bills reach customers through tellers and ATMs.
A given $20 bill changes hands frequently, but even the Bureau of Engraving and Printing can’t say exactly how many times. Contrary to popular belief, the government has no way to track individual bills electronically.
That said, each bill does carry a built-in security feature: a polyester thread embedded vertically along one side. Look closely and you’ll see the initials “USA TWENTY,” the bill’s denomination, and a small flag printed along the thread — visible from both sides of the bill. It’s there to deter counterfeiting, not to enable tracking.
What Happens to Worn-Out Bills?
Currency doesn’t circulate forever. Banks collect worn-out and damaged bills and send them to the Federal Reserve, which sorts them into two categories:
- Still usable — stored and recirculated through the commercial banking system
- No longer usable — cut into confetti-like shreds
This cycle is how the Federal Reserve keeps the physical currency supply in good condition without requiring the government to track any individual bill.
Frequently Asked Questions
What is a $20 bill made of?
A $20 bill is made from a special blend of 75% cotton and 25% linen, not wood pulp. It also includes red and blue fibers, watermarks, and a polyester security thread for authenticity.
How are $20 bills cut and packaged?
Printed sheets are cut into stacks of 100 bills, wrapped, and grouped. Ten stacks are shrink-wrapped together, and four of those bundles are combined into a “brick” containing 4,000 bills, worth $80,000.
What happens to old or damaged currency?
Old bills are collected by banks and sent to the Federal Reserve. Bills still in good condition are reused, while damaged bills are shredded into small pieces.
Can the government track individual dollar bills?
No. Despite the embedded security thread, the government has no way to electronically track individual bills as they move through circulation.
The next time a $20 bill passes through your hands, it’s worth remembering the process behind it — dozens of tons of specialized printing equipment, over 144 hours of drying time, and a security thread designed to outsmart counterfeiters, all before it ever reaches a wallet.
