Also known as:annual percentage rates · APR · APRs
Written by attorneys · grounded in primary & secondary sources — see below
A measure of the total cost of borrowing expressed as an annualized interest rate that incorporates fees and finance charges according to a standardized formula.
Sources & Authorities
How it applies
Common Examples
3
Out-of-State Rate Certification
MetroBank markets credit cards to residents of Hamilton. The state statute requires the bank to certify that its annual percentage rates for Hamilton customers match its lowest rates offered anywhere else. The bank must either adjust its nationwide pricing or forgo the Hamilton market.
Nationwide Pricing Constraint
Granite Bank offers cards in Fairmont. The statute ties Fairmont rates to the bank's lowest rates in any state. Raising rates elsewhere would force the bank to raise Fairmont rates or exit the market entirely.
Consumer Disclosure Requirement
Apex Dynamics advertises open-end credit. The issuer must disclose the annual percentage rate using the standardized TILA formula on periodic statements so cardholders can compare total borrowing costs.
Put it into practice
Test Yourself
2
Practice Questions2
· 8 primary sources
Select any source to read its text and confirm it supports the definition.
Federal Rules
Study Supplements
Dictionaries
Common questions
Frequently Asked
3
How does a state statute tying in-state annual percentage rates to the lowest nationwide rates violate the dormant Commerce Clause?+
The statute effectively controls pricing decisions in other states by conditioning market access on nationwide rate parity. This extraterritorial regulation is invalid regardless of consumer-protection motives.
Supporting sources
What must creditors disclose about annual percentage rates under TILA for open-end credit?+
Creditors must disclose the annual percentage rate using a standardized formula both in advertising and on periodic statements so consumers can assess the true cost of borrowing.
Supporting sources
Does the dormant Commerce Clause analysis change if the state law only affects issuers marketing to in-state residents?+
No. Conditioning access to the state market on nationwide pricing still projects regulatory power into out-of-state transactions and remains invalid.
Supporting sources
Constitutional LawThe relation of nation and states in a federal system · Federalism-based limits on state authorityNEXTGENIntermediate