DayCents

Prime Rate

The prime rate is the interest rate banks charge their most creditworthy customers, and it moves with the Federal Reserve's benchmark rate. It's the anchor for variable-rate products — credit cards, HELOCs, and many personal loans are priced as 'prime plus' a margin.

When the Fed raises or cuts rates, prime follows, and your variable-rate debt gets more or less expensive within a billing cycle or two. It's why credit-card APRs climb during rate-hiking cycles even if you did nothing.