A credit card is a revolving credit account that lets a cardholder borrow for purchases, transfers, or cash advances up to an approved limit.
A credit card is a revolving credit account that lets a cardholder borrow for purchases, balance transfers, or cash advances up to an approved limit. The issuer pays or settles eligible transactions and the cardholder repays the issuer under the card agreement.
A credit card is not the same as a debit card. A debit card generally draws from deposited funds; a credit card creates or increases a loan balance.
The cardholder is the person or entity responsible under the account agreement. An authorized user may be permitted to transact without being the primary obligor, depending on the agreement.
| Term | Meaning |
|---|---|
| Current balance | Posted account balance at the time shown |
| Statement balance | Balance captured at the end of a billing cycle |
| Minimum payment | Smallest amount required by the due date to meet the statement’s payment requirement |
| Available credit | Unused portion of the limit after relevant transactions and holds |
| Purchase APR | Annualized rate applied to purchase balances under the agreement |
| Cash-advance APR | Rate applied to cash advances, often with separate fees and timing |
| Balance-transfer APR | Rate applied to transferred balances, which may be promotional or standard |
Common charges can include annual, late-payment, cash-advance, balance-transfer, and foreign-transaction fees. Not every card uses every fee, and fee rules vary. Read the current agreement and disclosure rather than relying on a generic list.
A card has a $5,000 limit. The cardholder has a $1,200 posted balance, a $300 pending hotel authorization, and no other holds. Displayed available credit may be about $3,500, but the exact amount depends on issuer processing.
If the $300 hold is later replaced by a $240 final charge, available credit changes again. The authorization was not the final posted transaction.
Compare the APRs that apply to the transactions you expect, annual and transaction fees, grace-period terms, minimum-payment rules, promotional-rate expiration, penalty conditions, rewards restrictions, and issuer service. A rewards rate should not be evaluated without the borrowing cost and fee structure.
This page is general education, not a recommendation to open, close, or use a particular account.
Treating the minimum payment as the cost of borrowing. It is a required cash amount, not a measure of total interest.
Assuming every balance has the same APR. Purchases, transfers, and cash advances can receive different treatment.
Confusing a pending hold with a posted charge. Authorization and settlement are separate stages.
Ignoring fees when evaluating a promotion. A low promotional rate can still involve transfer or annual fees.
Assuming an unused limit is guaranteed. Issuers can change limits subject to agreements and applicable rules.