✔ No account fees or minimums ✔ Up to 4.20% APY
✔ Up to a $300 bonus.
See what better banking is like with SoFi. Learn more

21 Fun Facts About Money

By Marcy Lovitch. December 07, 2022 · 9 minute read

THIS ARTICLE MAY INCLUDE INFORMATION ABOUT PRODUCTS, FEATURES AND/OR SERVICES THAT SOFI DOES NOT PROVIDE. SOFI LEARN STRIVES TO BE AN EDUCATIONAL RESOURCE AS YOU NAVIGATE YOUR FINANCIAL JOURNEY. WE DEVELOP CONTENT THAT COVERS A VARIETY OF FINANCIAL TOPICS WITH THE AIM TO BREAK DOWN COMPLICATED CONCEPTS, KEEP YOU INFORMED ON THE LATEST TRENDS, AND CLUED-IN ON THE STUFF YOU CAN USE TO HELP GET YOUR MONEY RIGHT,

21 Fun Facts About Money

We may not stop to think about money because it’s a part of our everyday life, but there are lots of fascinating facts about currency. Learning some interesting tidbits may change how you think about money and even come in handy the next time trivia night rolls around.

Read on for 21 fun facts about money that may just blow your mind.

Surprising Things You Probably Didn’t Know About Money

Maybe you already know only two non-Presidents grace the front of U.S. bills (Alexander Hamilton on the $10 bill and Benjamin Franklin, the $100 bill). But did you know our paper currency isn’t really made out of paper? And that no living person can appear on a U.S. coin or dollar bill? It’s true! Here, learn more intriguing money facts you can spout to wow your friends.

1. Each Dollar Amount Has Its Own Lifespan

Money doesn’t last forever, but some dollar bills have a longer life cycle than others.

According to the U.S. Currency Education Program, a $10 bill has the shortest lifespan while a $100 bill has the longest. Here’s the estimated lifespan of the different denominations:

•   $1: 5.8 years

•   $5: 5.5 years

•   $10: 4.5 years

•   $20: 7.9 years

•   $50: 8.5 years

•   $100: 15 years

2. A Banknote Can Be Folded 4,000 Times

Our currency is pretty durable. The Bureau of Engraving and Printing, the sole producer of U.S. paper currency, says it would take 4,000 double folds, forward and backwards, for a dollar bill to tear. It might be because paper money isn’t actually made of paper. It’s actually a blend of 75% cotton and 25% linen with tiny blue and red synthetic fibers of various lengths evenly distributed throughout the bill.

3. There’s a Reason US Dollars Are Green

Dollar bills weren’t always green. Colonial money for example, was tan with black or red ink. It wasn’t until the Civil War the government started using green ink to print paper money where it got the name greenbacks. The color was selected because the ink didn’t fade or easily decompose, which protected against counterfeiting.

4. A Coin Can Last Around 30 Years

Coins stay in circulation for about 30 years, which is when they become too worn to use. At that time, the Federal Reserve takes them out of circulation and melts them down to use for other purposes.

Recommended: How Do Federal Reserve Banks Get Funded?

5. The Highest Bill Denomination Issued by the US Was $100,000

Printed in 1934 and featuring President Woodrow Wilson, this $100,000 bill was a gold certificate currency that was never intended for public use. Instead, it was meant only for official transactions between Federal Reserve Banks. The last time this banknote was printed was in 1945, and it can’t be legally held by collectors.

💡 Quick Money Tip: Signing up for your paycheck to be directly deposited in an online bank account is a great way to help you pay your bills on time. After all, if your check is being deposited like clockwork, you can schedule bill payments ahead of time.

6. A Penny Costs More to Make than It’s Worth

A recent report from the U.S. Mint says it costs 2.1 cents to make a penny. Why the increase? Part of the rise could be the higher prices of copper and zinc, both of which are used to make pennies.

7. Money Is Dirtier Than You Think

Both paper currency and coins can carry viruses and bacteria that can live on the surfaces and easily transfer to your skin or onto other objects after touching it. Research has found physical currency changes hands at least 55 times a year or almost once a week. One recent study found banknotes made with cotton or linen fibers, such as U.S. dollar bills, present increased areas for germs and the capacity to retain moisture, which can make it an easier place for bacteria to thrive.

8. The Dollar Sign Was First Used in 1785

Here’s another fun money fact: The official adoption of the dollar sign in the U.S. can be traced back to 1785, when it evolved from the Spanish symbol for pesos. It’s believed the $ originated from the abbreviation PS, which was used to indicate Spanish pesos in the Americas. Gradually the “S” came to be written over the “P,” eventually morphing into the dollar sign we know today.

9. Martha Washington Is the Only Woman to Appear on a US Bill

America’s first First Lady, Martha Washington, is to this day, the only woman to have her likeness on a U.S. paper currency note. Her image appeared on the $1 Silver Certificate, first issued in 1886 and discontinued in 1957. It was the country’s second-longest issued paper money.

10. America Isn’t the Only Country that Uses the US Dollar

Besides the United States and its five inhabited territories, 11 countries in the world also use the U.S. dollar, the world’s reserve currency, as their official currency: The British Virgin Islands, Timor-Leste (or East Timor), Bonaire, Ecuador, El Salvador, Federated States of Micronesia, Marshall Islands, Palau, Panama, Turks and Caicos, and Zimbabwe.

Recommended: Examining the Value of the U.S. Dollar

11. You Can Make Your Money Crisp by Ironing It

Ready for a surprising money fact that involves a little bit of fabric know-how? If you’ve got a creased, crumpled, or wrinkled dollar bill, you can make it look new by pressing it with your iron. As mentioned earlier, U.S. dollars are 75% cotton and 25% linen, so it’s actually fabric. To iron the money, dampen the dollar bill slightly with a spritz bottle, sprinkle water by hand, or use the spray function on the iron itself. Set the iron to a low heat, put a towel under the bill and another on top of it, then iron the money in a circular motion. Set aside to air dry. Presto! You should have a nice flattened bill.

Get up to $300 when you bank with SoFi.

No account or overdraft fees. No minimum balance.

Up to 4.20% APY on savings balances.

Up to 2-day-early paycheck.

Up to $2M of additional
FDIC insurance.


12. The Oldest Currency Still in Use Is the British Pound

The British pound dates back to 775 AD and was called the pound sterling, when Anglo-Saxon kings used silver pennies, or sterlings as money. Today, this foreign currency is the fourth most traded in the foreign exchange market, after the U.S. dollar, the euro and the Japanese yen.

Recommended: Here’s What You Can Do with Leftover Foreign Currency

13. There Are 1.4 Billion $2 Bills Still in Circulation

The first $2 bills were printed in 1862. Although they originally featured Alexander Hamilton, they were later redesigned to feature Thomas Jefferson. The bills are still in circulation – 1.4 billion of them in fact – and are considered to be the rarest currency denomination in the U.S. Some people believed $2 bills were bad luck and would rip off the corners of the bill to “reverse the curse,” making them unusable.

14. The First Universal Credit Card Was Introduced in 1950

Credit cards originated in the U.S. back in the 1920s, but were issued by individual firms, such as oil companies and hotel chains, to their customers, specifically for purchases made at company outlets. It wasn’t until 1950 when Diners Club founders Ralph Schneider and Frank McNamara issued a card that could be used at a variety of establishments. The Diners Club card sparked the modern credit card era. Others soon followed, such as American Express, which debuted their card of this type in 1958.

Recommended: 10 Credit Card Rules You Should Know

15. There’s an ATM on Every Continent on Earth

One interesting money fact involves how we access it. There are more than 3 million cash machines around the world today. You can get or deposit cash at ATMs in the most remote of places including Easter Island, central Australia, and two at McMurdo Station in Antarctica!

16. The Secret Service Originally Fought Counterfeiting

Today we typically think of the U.S. Secret Service as protection for certain political leaders, including the President and Vice-President and their immediate families. But the agency was founded for a very different reason. By the end of the Civil War, fake money was a significant problem, with nearly one-third of all U.S. paper currency in circulation being counterfeit. As a result, the financial stability of the country was in jeopardy, so in 1865, the Treasury Department established the Secret Service to suppress the counterfeiting. They didn’t start protecting the President until 1901, after the assassination of President William McKinley.

17. Most Americans Hoard Their Spare Change

One recent survey by MyBankTracker.com found 55.5% of people do nothing with the loose change they’ve accumulated. Interestingly, 60.3% of the male respondents said they’re more likely to leave their extra coins untouched compared to 51% of the female respondents.

Another survey from Coinstar says people estimate they’ve got an average of $113 worth of coins in and around their homes.

Recommended: Spare Change Savings

18. Only 8% of the World’s Currency Is Physical Money

Interesting money fact: With mobile banking and electronic payments becoming more and more common, people are earning and spending money without having to even touch it. Economists estimate only 8% of the world’s currency is literal cash with the rest existing on computer hard drives in electronic bank accounts.

19. Coins Didn’t Always Say “In God We Trust”

The original American penny, reportedly designed by Benjamin Franklin, features a motto he popularized, “Mind Your Business.” The message wasn’t literally telling people not to be nosy. Instead, it was meant as a literal instruction about business and commerce, to keep focused on your livelihood.

20. US Airports Make Big Money from Loose Change

According to the Department of Homeland Security, airline passengers leave behind thousands of dollars in coins each year at U.S. airport screening checkpoints. In the most recent year studied, the Transportation Security Administration collected $517,978.74 in unclaimed money (mostly coins) from passengers who emptied their pockets while going through the security line. These funds get deposited into a special fund so that collection and spending can be easily tracked. After a period of time, this money is used for civilian airport security expenses.

21. This Century Is Transforming Money

The 2000’s ushered in a new way for us to pay for things: mobile payment technology like Venmo, PayPal and Google Pay. Approximately 25% of people worldwide use mobile and digital wallets, ahead of credit cards (22.4%), debit cards (22.3%), and cash (20.5%), says Moneytransfers.com. Globally, the mobile-payment market was worth $1.97 trillion in 2021, up 27.9% from the year prior.

Recommended: Mobile Wallets: How They Work & Their Benefits

The Takeaway

Learning fun facts about money reminds us there’s more to it than its face value. Finding out some fascinating money trivia might even change the way you think about it. These facts can enrich your understanding of the history of our currency system, how it’s evolving, and its place in the global market.

Better banking is here with SoFi, NerdWallet’s 2024 winner for Best Checking Account Overall.* Enjoy up to 4.20% APY on SoFi Checking and Savings.


Photo credit: iStock/bob_bosewell

Third-Party Brand Mentions: No brands, products, or companies mentioned are affiliated with SoFi, nor do they endorse or sponsor this article. Third-party trademarks referenced herein are property of their respective owners.

Financial Tips & Strategies: The tips provided on this website are of a general nature and do not take into account your specific objectives, financial situation, and needs. You should always consider their appropriateness given your own circumstances.

SoFi® Checking and Savings is offered through SoFi Bank, N.A. ©2024 SoFi Bank, N.A. All rights reserved. Member FDIC. Equal Housing Lender.
The SoFi Bank Debit Mastercard® is issued by SoFi Bank, N.A., pursuant to license by Mastercard International Incorporated and can be used everywhere Mastercard is accepted. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.


SoFi members with direct deposit activity can earn 4.20% annual percentage yield (APY) on savings balances (including Vaults) and 0.50% APY on checking balances. Direct Deposit means a recurring deposit of regular income to an account holder’s SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by the account holder’s employer, payroll or benefits provider or government agency (“Direct Deposit”) via the Automated Clearing House (“ACH”) Network during a 30-day Evaluation Period (as defined below). Deposits that are not from an employer or government agency, including but not limited to check deposits, peer-to-peer transfers (e.g., transfers from PayPal, Venmo, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), and bank ACH funds transfers and wire transfers from external accounts, or are non-recurring in nature (e.g., IRS tax refunds), do not constitute Direct Deposit activity. There is no minimum Direct Deposit amount required to qualify for the stated interest rate. SoFi members with direct deposit are eligible for other SoFi Plus benefits.

As an alternative to direct deposit, SoFi members with Qualifying Deposits can earn 4.20% APY on savings balances (including Vaults) and 0.50% APY on checking balances. Qualifying Deposits means one or more deposits that, in the aggregate, are equal to or greater than $5,000 to an account holder’s SoFi Checking and Savings account (“Qualifying Deposits”) during a 30-day Evaluation Period (as defined below). Qualifying Deposits only include those deposits from the following eligible sources: (i) ACH transfers, (ii) inbound wire transfers, (iii) peer-to-peer transfers (i.e., external transfers from PayPal, Venmo, etc. and internal peer-to-peer transfers from a SoFi account belonging to another account holder), (iv) check deposits, (v) instant funding to your SoFi Bank Debit Card, (vi) push payments to your SoFi Bank Debit Card, and (vii) cash deposits. Qualifying Deposits do not include: (i) transfers between an account holder’s Checking account, Savings account, and/or Vaults; (ii) interest payments; (iii) bonuses issued by SoFi Bank or its affiliates; or (iv) credits, reversals, and refunds from SoFi Bank, N.A. (“SoFi Bank”) or from a merchant. SoFi members with Qualifying Deposits are not eligible for other SoFi Plus benefits.

SoFi Bank shall, in its sole discretion, assess each account holder’s Direct Deposit activity and Qualifying Deposits throughout each 30-Day Evaluation Period to determine the applicability of rates and may request additional documentation for verification of eligibility. The 30-Day Evaluation Period refers to the “Start Date” and “End Date” set forth on the APY Details page of your account, which comprises a period of 30 calendar days (the “30-Day Evaluation Period”). You can access the APY Details page at any time by logging into your SoFi account on the SoFi mobile app or SoFi website and selecting either (i) Banking > Savings > Current APY or (ii) Banking > Checking > Current APY. Upon receiving a Direct Deposit or $5,000 in Qualifying Deposits to your account, you will begin earning 4.20% APY on savings balances (including Vaults) and 0.50% on checking balances on or before the following calendar day. You will continue to earn these APYs for (i) the remainder of the current 30-Day Evaluation Period and through the end of the subsequent 30-Day Evaluation Period and (ii) any following 30-day Evaluation Periods during which SoFi Bank determines you to have Direct Deposit activity or $5,000 in Qualifying Deposits without interruption.

SoFi Bank reserves the right to grant a grace period to account holders following a change in Direct Deposit activity or Qualifying Deposits activity before adjusting rates. If SoFi Bank grants you a grace period, the dates for such grace period will be reflected on the APY Details page of your account. If SoFi Bank determines that you did not have Direct Deposit activity or $5,000 in Qualifying Deposits during the current 30-day Evaluation Period and, if applicable, the grace period, then you will begin earning the rates earned by account holders without either Direct Deposit or Qualifying Deposits until you have Direct Deposit activity or $5,000 in Qualifying Deposits in a subsequent 30-Day Evaluation Period. For the avoidance of doubt, an account holder with both Direct Deposit activity and Qualifying Deposits will earn the rates earned by account holders with Direct Deposit.

Members without either Direct Deposit activity or Qualifying Deposits, as determined by SoFi Bank, during a 30-Day Evaluation Period and, if applicable, the grace period, will earn 1.20% APY on savings balances (including Vaults) and 0.50% APY on checking balances.

Interest rates are variable and subject to change at any time. These rates are current as of 10/31/2024. There is no minimum balance requirement. Additional information can be found at https://www.sofi.com/legal/banking-rate-sheet.

SOBK1022001

TLS 1.2 Encrypted
Equal Housing Lender