US FederalCan a credit card company raise my interest rate without notice?
No, a credit card company generally cannot raise your interest rate without advance written notice — federal law requires at least 45 days’ notice before most rate increases.
What the Law Says
The Truth in Lending Act (TILA) establishes foundational consumer protections for credit, including clear disclosure requirements and limits on unilateral changes to credit terms.
Under federal law, credit card companies must provide clear, conspicuous, and timely notice before increasing your annual percentage rate (APR). While 15 U.S.C. § 1601 itself states the broad purpose of the Act, the specific notice rules come from Regulation Z (12 C.F.R. § 1026.9), which implements TILA. These rules require at least 45 days’ advance written notice before most APR increases — giving you time to pay off or transfer the balance, or opt out in certain cases.
The statute affirms that 'the informed use of credit results from an understanding of the cost thereof by consumers' and declares it the 'purpose of this subchapter to assure a meaningful disclosure of credit terms so that the consumer will be able to compare more readily the various credit terms available.' This transparency principle underpins the strict notice requirements for rate changes.
Statutory TextThe Congress finds that economic stabilization would be enhanced and the competition among financial institutions improved if consumers were provided with meaningful disclosure of credit terms so that they may compare more readily the various credit terms available to them and make informed choices.
— 15 U.S.C. § 1601 — Congressional findings and declaration of purpose
What to Do
Review all mail and online account alerts for notices labeled 'Change in Terms' or 'Notice of Rate Increase'.
Check whether the notice gives at least 45 days before the new rate applies — if not, contact the issuer and file a complaint with the CFPB.
If the increase applies to existing balances (not just future purchases), confirm whether you have the right to opt out — you’ll usually receive instructions in the notice.
Consider paying off the balance or transferring it to a card with a lower rate before the new APR takes effect.
Keep copies of all notices and correspondence for at least two years in case of disputes.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.