What is a credit limit on a credit card?

A credit limit is the maximum balance your issuer lets you carry at one time. It's set when the account opens — based on your credit score, income, existing debt, and history — and can rise or fall over time.

As you spend, available credit falls; as you pay, it's restored. Issuers set the initial limit from your credit report, debt-to-income ratio, and stated income, under the Equal Credit Opportunity Act, which bars discrimination in credit decisions. Higher scores, longer histories, and lower existing debt tend to earn higher limits. A limit matters beyond spending power: your credit utilization ratio — the share of your total available credit you're using — is one of the most influential factors in credit scoring, so a higher limit (with steady spending) can lower utilization and help your score. Issuers can also cut a limit, generally with notice, and a limit-increase request may trigger a hard or soft inquiry depending on the issuer.

Reviewed by the ClearValue Editorial Team · Last updated 7/8/2026