Medical credit cards, and the deferred-interest deadline
The card that looks like 0% — and the deadline that decides whether it actually is.
Quick answer
A medical credit card is 0% only if the balance is paid in full before the promotional period ends. Miss the deadline by any amount and interest is charged retroactively on the original purchase, not just the remaining balance.
How do medical credit cards work?
Medical credit cards (the best-known is CareCredit; Alphaeon is another) are offered through enrolled practices — your surgeon must participate for you to use one. Their headline feature is a deferred-interest promotion, often advertised as "No Interest if Paid in Full" over 6, 12, 18, or 24 months. That is not the same as true 0% interest. And the minimum monthly payment is often not enough to clear the balance by the deadline — plan payments that pay the balance off early, not payments that merely keep the account current.
What has gone wrong with them?
The mechanism itself has drawn regulator action: the Consumer Financial Protection Bureau ordered $34.1 million in refunds over CareCredit practices in 2013, and roughly $1 billion in deferred interest was paid on healthcare purchases in 2018–2020, as reported. The recurring problem is confusion between deferred interest and true 0% — patients who believed they had interest-free financing discovered retroactive interest when a small balance remained past the deadline.
What should you confirm before signing?
The promotional length; the interest rate that applies if the deadline is missed; whether your surgeon is enrolled; a payment schedule that clears the balance before the deadline; what happens on a late or missed payment; and any fees. Get all of it in writing, and never let the financing decision rush the surgery decision.
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General information only, not financial or medical advice. Terms, rates, and enrollment vary by lender and practice and change over time — verify current terms before deciding.
Last reviewed: October 2026.