What Is a Credit Card? How It Works, Interest, and How to Use It Safely
Credit cards rank among the most widely used financial instruments in the world, and among the most misunderstood. In 2025, Americans held over 540 million credit card accounts, according to data from the Federal Reserve and TransUnion. By early 2026, that number continues to climb as digital payments accelerate, and new fintech issuers enter the market. […]
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