Purchase APR vs. Cash Advance APR: What's the Difference?
Two numbers can sit side by side on the same card’s terms, yet only one of them typically comes with a chance to avoid interest altogether.
The short answer
Purchase APR is the interest rate applied to everyday spending, and it often comes with a grace period that lets a cardholder avoid interest entirely by paying the statement balance in full. Cash advance APR applies to cash-equivalent transactions, like ATM withdrawals or certain money transfers, and it typically runs higher than the purchase rate while skipping the grace period, meaning interest can start accruing immediately. The two rates exist on the same card but behave quite differently in practice.
Why the rates differ
Issuers generally treat cash advances as a higher-risk transaction type than ordinary purchases, in part because a cash advance converts available credit directly into cash, which is harder to trace to a specific purchase and, historically, has been associated with higher default rates. That added risk is typically priced into a higher APR specifically for cash advances, separate from the rate applied to purchases. Balance transfers sit somewhere in between, often carrying their own promotional or standard rate depending on the offer, which is part of why a single card can display several different figures at once.
The grace period gap
- Purchases. Most cards offer a grace period — time between the end of a billing cycle and the payment due date — during which no interest accrues on new purchases, as long as the previous balance was paid in full.
- Cash advances. This grace period generally doesn’t apply. Interest on a cash advance typically begins the day the transaction posts, a detail explored further in when interest starts accruing on a cash advance, regardless of when the statement is due.
This is the structural reason a cash advance can end up costing more than its APR alone suggests — it isn’t just a higher rate, it’s also a longer period during which that rate applies. Two cash advances of the same size can end up costing noticeably different amounts depending on how many days pass before each one is repaid, since interest compounds for the entire time the balance is outstanding.
How the two rates coexist on one card
A single card typically lists both APRs, along with others like a balance transfer APR, because multiple APRs can apply to the same card depending on the type of balance being carried. Payments made toward the account are generally applied according to rules set by the issuer, which can affect how quickly a higher-rate balance, like a cash advance, gets paid down relative to a lower-rate purchase balance.
What to weigh
- Fees on top of interest. Cash advances often carry an upfront fee in addition to the higher APR, so the total cost of a cash advance includes more than just the interest rate comparison.
- Alternatives for accessing cash. Because of the combination of a higher rate, no grace period, and an upfront fee, a cash advance is generally one of the more expensive ways to access funds through a credit card, worth weighing against other short-term options.
- Paying down quickly. Since interest accrues from day one on a cash advance, there’s little benefit to spreading out repayment the way there might be with an ordinary purchase during a grace period.
A practical habit
Checking a card’s specific purchase and cash advance APRs, rather than assuming they’re the same, makes it easier to anticipate the real cost of a transaction before it happens. The rate on a statement only tells part of the story; the grace period, or the lack of one, often matters just as much.