The first credit card was created by Frank McNamara in 1950

Frank McNamara, a businessman from Brooklyn, created the Diners Club card in 1950 after a dinner at a restaurant where he realized he had left his wallet at home. Rather than invent a card that worked like modern credit cards, McNamara created a charge card — a card that required the full balance to be paid each month. He partnered with Ralph Schneider and Matty Simmons to launch the card, which worked by having restaurants and merchants bill Diners Club directly, and Diners Club would then bill the cardholder.

The Diners Club card was not the first card used for credit. Department stores had issued their own cards to regular customers since the early 1900s, and oil companies issued cards to frequent customers in the 1920s. But Diners Club was the first card designed to work across many different merchants and restaurants, making it the first general-purpose charge card.

Key Takeaways

  • Frank McNamara created the Diners Club card in 1950, the first general-purpose charge card that worked at multiple merchants rather than just one store.
  • Diners Club required cardholders to pay the full balance each month, unlike modern credit cards that allow you to carry a balance and pay interest.
  • Bank of America launched the BankAmericard in 1958, which introduced the revolving credit model where you could carry a balance month to month.
  • The BankAmericard eventually became Visa, and Mastercard launched in 1966, creating the two largest card networks that still operate today.
  • The magnetic stripe, invented by IBM engineer Forrest Parkinson in the 1960s, made cards more secure and easier to process than the original embossed numbers.

How Diners Club worked differently from today's cards

The Diners Club card operated on a charge card model, not a credit card model. When you used the card at a restaurant or merchant, the merchant would contact Diners Club to verify the charge, and Diners Club would pay the merchant. At the end of the month, you received a bill for all your charges and had to pay the entire amount — there was no option to carry a balance or pay interest on what you owed.

This was a significant difference from modern credit cards. Today's cards let you pay part of your balance and carry the rest forward with interest charges. Diners Club's model was closer to what we now call a charge card, similar to the American Express card that launched in 1958. The shift to revolving credit — where you could carry a balance — came later with the BankAmericard.

Bank of America introduced the revolving credit model in 1958

Bank of America launched the BankAmericard in 1958 in Fresno, California. Unlike Diners Club, the BankAmericard allowed cardholders to carry a balance from month to month and pay interest on what they owed. This revolving credit model is what modern credit cards use today. Bank of America mailed unsolicited cards to customers in Fresno, a marketing approach that would later be restricted by law but was common at the time.

The BankAmericard expanded beyond California in the 1960s and eventually became Visa in 1976. The card introduced the concept of a credit limit — the maximum amount you could borrow — and monthly statements showing your balance, minimum payment, and interest charges. This model proved more profitable for banks than the charge card model because they earned interest on outstanding balances.

Mastercard and Visa created the modern card network system

Mastercard launched in 1966 as the Interbank Card, created by a group of banks that wanted to compete with Bank of America's BankAmericard. The two networks — Visa (formerly BankAmericard) and Mastercard (formerly Interbank Card) — established the system that still operates today. Both networks set the rules for how cards work, how merchants process transactions, and what fees are charged, but they do not issue the cards themselves. Banks issue the cards and set the interest rates and fees.

This separation between the network and the issuing bank is why you can get a Visa card from dozens of different banks, each with different interest rates, rewards programs, and annual fees. The network handles the transaction processing and dispute resolution, while the bank handles the customer relationship and credit decisions.

The magnetic stripe made cards faster and more secure

Early credit cards had numbers embossed on the front, and merchants would use a manual imprinter to press the card onto a carbon form to record the transaction. This process was slow and prone to errors. In the 1960s, IBM engineer Forrest Parkinson invented the magnetic stripe — the black stripe on the back of modern cards that stores card information electronically.

The magnetic stripe allowed merchants to swipe the card through a reader, which automatically captured the card number and other information. This made transactions faster and reduced errors. The magnetic stripe became the standard for credit cards in the 1970s and remained the primary way cards were processed until chip technology and contactless payments emerged in the 2000s and 2010s.

Chip technology and contactless payments replaced the magnetic stripe

In the 1980s and 1990s, chip technology (also called EMV, for Europay, Mastercard, and Visa) began replacing the magnetic stripe in many countries. A chip embedded in the card stores encrypted information that is harder to counterfeit than a magnetic stripe. The United States was slower to adopt chip technology than Europe and other regions, but most U.S. cards now have chips.

Contactless payments — where you tap or wave your card near a reader without inserting it — emerged in the 2000s and became widespread during the COVID-19 pandemic. These payments use radio frequency identification (RFID) or near-field communication (NFC) technology. Today, many cards and digital wallets support contactless payments, though the magnetic stripe and chip remain as backup methods.

Digital wallets and mobile payments are the newest evolution

The latest development in credit card technology is the shift to digital wallets and mobile payments. Apple Pay, Google Pay, and Samsung Pay allow you to store your credit card information on your phone and pay by holding your phone near a contactless reader. These services encrypt your card information and do not share your actual card number with the merchant, making them more secure than swiping a physical card.

Digital wallets represent a shift away from the physical card itself, though the underlying credit card network — Visa, Mastercard, or American Express — still processes the transaction. The card number, expiration date, and security code are now stored digitally rather than printed on plastic. This evolution continues the trend that started with Frank McNamara's Diners Club: making it easier and faster to pay without cash.

Frequently Asked Questions

Did credit cards exist before Frank McNamara invented Diners Club?

Yes, but not in the form we recognize today. Department stores issued their own cards to regular customers starting in the early 1900s, and oil companies issued cards in the 1920s. These cards only worked at that specific company's locations. Diners Club was the first card designed to work at many different merchants, making it the first general-purpose credit card.

Why did Bank of America's BankAmericard become Visa?

Bank of America licensed the BankAmericard technology to other banks starting in the 1960s, and those banks formed a network to compete with Mastercard. In 1976, the network was renamed Visa to reflect that it was no longer owned by just Bank of America. The name change also helped distinguish it from Mastercard as the two networks competed for market share.

When did credit cards start charging interest?

Diners Club, the first general-purpose card in 1950, did not charge interest because cardholders had to pay the full balance each month. Bank of America's BankAmericard, launched in 1958, introduced the revolving credit model where you could carry a balance and pay interest. This model became standard for credit cards and is how most cards work today.

What replaced the magnetic stripe on credit cards?

Chip technology (EMV) began replacing the magnetic stripe in the 1980s and 1990s, offering better security through encryption. Contactless payments emerged in the 2000s, allowing you to tap your card instead of inserting it. Today, most cards have all three: a magnetic stripe for older readers, a chip for standard readers, and contactless capability for tap payments.