Sheets of U.S. Treasury checks being printed, with a person’s hands guiding the paper through a large industrial printing machine.

Money facts are often stranger than the basic financial lessons most people learn growing up. The systems behind cash, banking, credit, and wealth contain quirks that rarely come up in everyday conversations.

From what happens to damaged bills to why wealthy people may prefer borrowing over selling investments, these lesser-known facts reveal some surprising details about how money actually works.

1. Most Money Doesn’t Exist as Physical Cash

A computer screen shows a PayPal account with a balance of $1,000,000.000, along with options to add money or transfer to your bank.
Dailycatchingup / Pinterest.com

The money circulating through a modern economy isn’t represented by an equivalent pile of bills and coins. Much of it exists electronically as balances recorded by banks.

2. A Damaged Dollar Bill Can Still Be Worth Its Full Value

A crumpled twenty-dollar bill lies on a dark, textured surface, showing signs of wear and creases but remains mostly intact and clearly identifiable.
Which U.S. Presidents Appear on Money? / Pinterest.com

In the United States, badly damaged currency isn’t automatically worthless. Under certain conditions, the Bureau of Engraving and Printing can examine mutilated bills and reimburse their owners.

3. The U.S. Has Printed Bills Larger Than $100

A U.S. $10,000 bill featuring a portrait of Salmon P. Chase in the center, with “TEN THOUSAND DOLLARS” printed at the bottom and various official seals and serial numbers.
Pin en Almacenamiento rápido / Pinterest.com

The $100 bill is the largest denomination currently issued for public use, but the U.S. once circulated $500, $1,000, $5,000, and $10,000 notes.

4. There Was Once a $100,000 U.S. Bill

A vintage U.S. $100 gold certificate featuring Benjamin Franklin’s portrait in the center, a large gold seal on the left, and serial number A00000512A. Text reads “ONE HUNDRED DOLLARS IN GOLD.”
Etsy / Pinterest.com

The largest denomination ever printed by the United States featured Woodrow Wilson. It wasn’t available to the public and was used only for transactions between Federal Reserve Banks.

5. Pennies Can Cost More Than One Cent to Produce

Two shiny 2023 US pennies featuring Abraham Lincoln, placed on a light surface. Both show the obverse side with “IN GOD WE TRUST,” “LIBERTY,” and the year “2023.”
Etsy / Pinterest.com

Producing and distributing a one-cent coin has cost the U.S. Mint more than the coin’s face value, creating an unusual situation where making money can literally lose money.

6. Credit Cards Existed Before the Magnetic Stripe

A vintage computer peripheral with a black plastic casing and metal base sits on a wood surface against a light green wall. Labels and a circuit are visible on the device.
EtsyDE / Pinterest.com

Early credit cards relied on embossed numbers and manual imprint machines. The magnetic stripe that made electronic payments easier arrived later.

7. Paper Money Isn’t Actually Made From Ordinary Paper

A person handles sheets of newly printed U.S. hundred dollar bills coming out of a large printing machine in a currency production facility.
Bill / Pinterest.com

U.S. currency uses a blend primarily composed of cotton and linen, helping bills survive far more handling than ordinary paper could.

8. Some Valuable Coins Are Worth More Because of Mistakes

A close-up of a U.S. nickel with part of the phrase “IN GOD WE TRUST” circled in red on the coin’s left edge, lying on a wood surface.
Waleed Coins | US Rare Coin Specialist / Pinterest.com

A small minting error can transform an ordinary coin into a collector’s item worth considerably more than its face value.

9. Inflation Can Make a Raise Worth Less Than It Looks

A table with groceries including bananas, apples, carrots, tofu, mushrooms, bread, salad greens, pasta, bell pepper, berries, yogurt, chocolate syrup, canned beans, and grape tomatoes.
Luxury Living for Less / Pinterest.com

Getting a 3% raise doesn’t necessarily increase someone’s purchasing power by 3%. If prices rise at the same rate, their real buying power may barely change.

10. Compound Interest Works Against Borrowers Too

A black wallet with cards, cash, and banknotes partly visible, lying open on a white surface. Two cards are placed outside the wallet.
The Points Guy / Pinterest.com

Compound growth isn’t limited to investments. When unpaid debt accumulates interest, borrowers can effectively pay interest on previously accumulated interest.

11. Being a Millionaire Doesn’t Mean Having $1 Million in Cash

A stock investment app screenshot shows an account balance of $1,000,586.69, up $900,910.85 (903.84%) over the past year, with a green upward-trending graph and various time frame options below.
Michelle Long / Pinterest.com

Net worth includes assets such as investments, retirement accounts, businesses, and real estate minus debts. Someone can therefore be a millionaire while keeping relatively little cash in the bank.

12. Wealthy Investors Can Borrow Against Their Assets Instead of Selling Them

A person uses a laptop displaying a financial stock chart with green and red lines, seated by a window with leafy plants in the background.
Wisecapital / Pinterest.com

People with large investment portfolios may use those assets as collateral for loans. This can provide access to cash without immediately selling the underlying investments.

13. Your Old Forgotten Accounts May Still Be Waiting for You

A hand holds a paycheck and pay stub from Paragon Staffing, showing payment details, deductions, and a net pay of $1,771.40. Background includes a kitchen counter with fruit, and a person’s reflection in a mirror.
Meiker Carela Mendez / Pinterest.com

Uncashed checks, forgotten bank balances, insurance payments, and other assets can eventually become unclaimed property held by state governments until their owners claim them.

14. Two People With the Same Salary Can Have Dramatically Different Net Worths

A person with dark nail polish counts U.S. dollar bills at a desk with a yellow pen, a notebook, and a computer keyboard in the background.
Gestoria Online | AsesorĂ­a fiscal / Pinterest.com

Income measures what someone earns. Wealth measures what they own after subtracting debts, meaning identical salaries can produce completely different financial situations.

15. Starting Earlier Can Matter More Than Investing More Later

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Because investment returns can compound over long periods, money invested early in adulthood can have a significant advantage over larger amounts invested much later.

Keep Reading…

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  • The Wealthiest Political Families
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  • 16 Everyday Habits That Saved Families Money in the 1800s
    Long before modern budgeting apps, families relied on practical habits and resourcefulness to stretch every dollar and build financial security.

Meet the Writer

Tatiana is a graphic designer specialized in marketing, with over 15 years of experience in the digital marketing world. Throughout her career, she’s worked with a variety of brands, developing strategies that blend creativity, identity, and results and loves to churn out refreshingly engaging content for audiences across many content realms at the same time. Find her on Behance at, tatianaalalach, as well.