When the Federal Reserve announces an interest rate hike, it doesn’t change your credit card APR instantly. Most credit cards are tied to the U.S. Prime Rate, which typically moves in lockstep with the Fed’s decisions.
The Delay: When Will You See It?
Typically, the rate change occurs on the first day of your next billing cycle following the Prime Rate adjustment. Because credit card companies generally need a full billing cycle to implement the change, you might not see the higher (or lower) APR for 30 to 45 days.
Interest Cost Comparison (per $1,000 balance)
| Scenario | Monthly | Annual |
|---|---|---|
| At Previous Rate (7% Prime) | $22.49 | $269.90 |
| At Current Rate (6.75% Prime) | $22.28 | $267.40 |
| Total Change | $-0.21 | $-2.50 |
Is the Change Automatic?
Yes. Because most modern credit cards have Variable APRs, the bank does not need to send you a 45-day advance notice for these specific fluctuations. The terms of your card agreement already state that your rate will fluctuate based on the index (Prime Rate).