Citi Credit Knowledge Center

The more you know about credit the better you can manage it. Explore our credit topics below.

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Planning for the Future

Credit Card Chip Technology

Learn key facts about chip card technology, including what it does, how it works and alternative payment options if you don’t have a credit card chip.

Planning for the Future

Can You Buy Gold with a Credit Card?

Investing in gold? Find out if you can buy gold with a credit card, the pros and cons of using a credit card for purchasing gold and alternative payment methods.

Planning for the Future

Chip Credit Card Technology

Learn key facts about chip card technology, including what the chip does, how it works and alternative payment options if you don’t have a credit card chip.

Maximizing Credit Card Rewards

Citi Strata Elite℠ Card Travel Benefits

From bonus points on lounge access and up to $700 in annual credits, the Citi Strata Elite℠ Card has plenty to offer frequent travelers.

Maximizing Credit Card Rewards

How to Redeem Citi Double Cash® Credit Card Rewards

The Citi Double Cash® Credit Card offers unlimited cash back on everyday purchases. Learn how to redeem Citi Double Cash® rewards.

Maximizing Credit Card Rewards

What Citi Credit Cards Offer Gas and EV Charging Rewards?

Learn which Citi credit cards offer rewards on gas and EV charging purchases, plus tips to help you earn more every time you fuel up or plug in.

Maximizing Credit Card Rewards

What Is Cash Back on a Credit Card?

Cash back is a credit card benefit that allows you to earn cash rewards when making eligible purchases. The way cash back works depends on your credit card.

Maximizing Credit Card Rewards

Citi Strata Elite℠ Card Benefits

Discover the premium benefits of the Citi Strata Elite℠ Card. Enjoy rewards on everyday purchases, lounge access and other perks that elevate your lifestyle.

Maximizing Credit Card Rewards

The Citi Double Cash® Credit Card New Cardmember Bonus

Maximizing Credit Card Rewards

What Citi Credit Cards Offer Airport Lounge Access?

Some Citi® credit cards offer airport lounge access. Learn about Citi's lounge and travel benefits to upgrade your next trip.

Maximizing Credit Card Rewards

Citi Strata℠ Card Travel Benefits

Learn about the Citi Strata℠ Card’s many travel benefits. From access to the Citi Travel® portal to our various points transfer partners, this card is the perfect travel companion. 

Maximizing Credit Card Rewards

How Do Travel Rewards Credit Cards Work?

Travel rewards credit cards let you earn points or miles as you shop. Learn how travel rewards credit cards work and how one can support your next trip.