In the United States, the only entity that makes coins you can legally spend is the federal government’s U.S. Mint. Private companies produce coin-shaped rounds, medals, and bullion bars, but those items are not money. Every other country works the same way: a government-authorized mint (its own or one it hires) produces its circulating coinage, and anything else is a collectible or a commodity.
The U.S. Mint and Its Four Facilities
The United States Mint manufactures every circulating American coin and strikes more than 10 billion of them each year.1United States Mint. How Coins Are Made: Bringing Coins Into Circulation Federal law establishes four facilities, each with a defined role.2Office of the Law Revision Counsel. 31 U.S. Code 5131 – Organization Philadelphia and Denver strike the pennies, nickels, dimes, and quarters that end up in your pocket. San Francisco and West Point handle proof coins for collectors and precious metal bullion coins.
Production starts with large coils of metal that get punched into blank discs called planchets. Presses then stamp both sides of each planchet at once. Every coin has to hit exact statutory specifications for weight, diameter, and alloy. A quarter, for instance, weighs 5.67 grams and measures 0.955 inches across.3Office of the Law Revision Counsel. 31 USC 5112 – Denominations, Specifications, and Design of Coins
Who Decides What Gets Made
The Secretary of the Treasury has legal authority to mint and issue coins in the quantities needed to meet demand.4Office of the Law Revision Counsel. 31 USC 5111 – Minting and Issuing Coins, Medals, and Numismatic Items That authority has limits. Federal statute spells out which denominations exist and fixes the alloy, weight, and diameter of each one.3Office of the Law Revision Counsel. 31 USC 5112 – Denominations, Specifications, and Design of Coins So Treasury decides how many coins to strike, but Congress decides what kinds of coins are allowed and what they’re made of.
Those compositions are written into the law. Half dollars, quarters, and dimes are clad coins with copper-nickel outer layers bonded to a copper core. The nickel is 75 percent copper and 25 percent nickel. The penny is copper-plated zinc. Changing any of those recipes takes an act of Congress. Congress also authorizes new designs and commemorative coin programs through legislation.
How Coins Get to Your Bank
Once the Mint finishes striking coins, distribution passes to the Federal Reserve, which manages the country’s entire circulating coin inventory.1United States Mint. How Coins Are Made: Bringing Coins Into Circulation The Federal Reserve keeps a 12-month rolling forecast and submits monthly coin orders to the Mint. Federal Reserve Banks buy the coins at face value.
From there, armored carriers move coins out of Philadelphia and Denver to 28 Federal Reserve branch offices and more than 100 private-sector coin terminals. Banks and credit unions place their own orders with the Federal Reserve, and armored carriers deliver the coins to those institutions. The banks then hand them out to customers, and the coins cycle through the economy until they wear out and flow back through the system to the Mint for disposal.
Private Mints and What They Can Legally Make
Private companies also stamp metal discs, but their products are not currency. What they produce is generally called rounds, bars, or medals, and none of it carries a face value or can be used to pay a debt. Many private facilities specialize in refining precious metals into investment-grade gold and silver bullion. Others make custom tokens for businesses, such as gaming chips or commemorative medals for organizations. Because these companies have no legal authority to create money, everything they make is treated as a commodity or a collectible.
Federal law draws two hard lines that any private mint has to respect:
- Forging a coin that resembles an existing U.S. coin in a denomination above five cents, or a foreign coin in circulation, is counterfeiting and carries up to 15 years in prison.5Office of the Law Revision Counsel. 18 U.S. Code 485 – Coins or Bars
- Making any metal coin intended for use as current money, even one of entirely original design, carries up to five years in prison.6Office of the Law Revision Counsel. 18 U.S. Code 486 – Uttering Coins of Gold, Silver or Other Metal
Rounds and bars from private mints are legal as long as they’re clearly marketed as bullion or collectibles and not passed off as substitutes for government money. A one-ounce silver round with an eagle on it is fine. A close copy of a Morgan silver dollar sold as spending money is not.
Who Makes Coins Outside the United States
Most sovereign nations run their own minting institution. The Royal Mint in the United Kingdom has been striking coins for more than 1,100 years.7GOV.UK. Royal Mint France’s Monnaie de Paris and Canada’s Royal Canadian Mint fill the same role in their countries. These operations use security features like micro-engraving, bi-metallic construction, and edge lettering to make counterfeiting harder.
Smaller countries that can’t justify building and maintaining a full minting operation contract the work out. The Royal Mint has produced circulating coins for New Zealand, Jamaica, the Bahamas, and the Maldives, among others. The arrangement gives smaller economies access to modern coining presses and metallurgical expertise without the capital cost of a facility of their own.
Foreign Coins Are Not Legal Tender Here
If you’re wondering whether a Canadian quarter or a British pound coin counts as money in the United States, it doesn’t. Federal law makes only U.S. coins and currency legal tender for debts, taxes, and public charges, and it explicitly excludes foreign gold and silver coins.8Office of the Law Revision Counsel. 31 USC 5103 – Legal Tender A private business can accept a foreign coin if it wants to, but nobody is required to. Foreign bullion coins such as the Canadian Maple Leaf and the South African Krugerrand trade widely in the United States, but they trade as investment products based on their metal content, not as spendable currency.