Short answer
A debit card normally spends money already in your bank or credit union account; a credit card borrows money that you must repay. Overdrafts complicate that distinction, and fraud protections depend on the card type, what happened, and when you report it—not one universal liability limit. 1 2
On this page
At a glance
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| Question | Debit card | Credit card |
|---|---|---|
| Whose funds support the purchase? | Your account funds, normally | Borrowed funds |
| Is repayment required? | Not ordinarily; overdrafts must be covered | Yes, under payment terms |
| What can generate charges? | Overdraft fees can apply | Late fees and interest can apply |
| Does a network logo identify it? | No | No |
These are the CFPB’s basic distinctions, not a complete account-fee comparison. 1
What each thing is
Debit is an account-funded payment method; credit is a borrowing method. Two hypothetical examples illustrate the difference:
- You buy $40 of groceries with debit, and sufficient account funds cover the purchase. You have spent existing money, not created a separate card balance to repay.
- You buy the same groceries with credit. The purchase uses borrowed money and creates a repayment obligation, even if you later pay the full balance. 1
Key differences
Repayment changes the financial consequence of a purchase. An ordinary debit purchase needs no later repayment. With credit, payment is due under the card’s terms; the CFPB explains that late payment generally brings a late fee and paying less than the full amount brings interest charges. Its overview was last reviewed October 19, 2023. Specific terms require current verification. 1
How to tell them apart
Identify whether the card spends from a bank or credit union account or creates borrowing you must repay. Do not rely on a Visa, Mastercard, or other network logo: both types may carry one. The limit of this test is overdraft—an account-funded debit transaction can still leave money owed. 1
Where they overlap
Both can be used for purchases, display network branding, and suffer unauthorized transactions. Stolen card information can be used even while the physical card remains in your wallet. Thus, possessing the card does not establish that every transaction is authorized; the CFPB recommends reviewing account activity and promptly reporting suspicious entries. 1 2
Edge cases
Debit does not invariably mean spending only available money. Some accounts allow a purchase to overdraw the balance, requiring replacement of the money and potentially an overdraft fee. That borrowing feature does not erase the distinction: the purchase still operates through the linked account rather than the ordinary credit-card repayment arrangement. 1
Why the distinction exists
The funding difference also affects disputes: unauthorized debit transactions take account money, while unauthorized credit transactions create charges. In US federal consumer-finance guidance last modified June 17, 2025, the CFPB describes different investigation schedules and provisional-credit procedures. These are distinct dispute processes, not evidence that either card provides universally stronger protection. 2
Common misconceptions
Neither “debit has no protection” nor “every card has the same fraud limit” fits the CFPB guidance. Its June 17, 2025 US guidance distinguishes stolen credit-account numbers from stolen cards, and missing debit cards from statement-only unauthorized transactions. Reporting time matters particularly for debit. Current legal requirements and account terms need verification before relying on a particular deadline or liability amount. 2
Examples
Hypothetical case 1: A customer buys $40 of groceries with a debit card linked to checking. The purchase normally draws on that account. The same $40 purchase on a credit card creates an amount to repay to the card issuer. 1
Hypothetical case 2: A bank permits a debit purchase that exceeds the account balance, creating an overdraft. The debit card can now leave the customer owing money, but the overdraft feature does not turn the card into an ordinary credit card. 1