| A | B |
| Annual Percentage Rate | Yearly percentage measuring the cost of credit |
| Cash Advance | Cash loan from credit card, usually with one-time fees, higher APR, no grace period |
| Convenience Check | Pre-printed checks for credit account (cash advance) |
| Daily Periodic Rate | 1/365th of APR to figure monthly interest |
| Debit Card | Checking card resembling a credit card, funds withdraw immediately |
| Default Rate | Higher APR triggered by missed or late payments, over credit limit, etc |
| Due Date | date payment must be made. |
| Grace Period | Time from previous month's closing and next month when paid off - no finance charges |
| Introductory Rate | Low APR offer for a specific time period |
| Prepaid Card | A card with a set value reduced by purchases |