Chase Bank USA, N. A. v. McCoy
The Supreme Court ruled that Chase Bank did not have to notify a cardholder in advance before raising his interest rate after he fell behind on payments, because the increase was already spelled out in his card agreement rather than being a new change in terms.
The Court reached this result by deferring to the Federal Reserve Board's own reading of its regulation, reinforcing that agencies' interpretations of their own ambiguous rules deserve deference even when offered for the first time in a legal brief.
How it got here: A federal trial court dismissed McCoy's suit, the Ninth Circuit reversed in part, and Chase asked the Supreme Court to resolve a split with the First Circuit.
The Case in Depth
What happened
James McCoy held a Chase credit card that promised him a 'Preferred' interest rate as long as he made timely payments; if he didn't, Chase could raise his rate up to a stated maximum and apply it retroactively. When McCoy defaulted, Chase raised his rate and, McCoy says, didn't tell him until after the increase already applied, which he argued broke federal disclosure rules.
The question before the Court
Did federal rules require Chase to warn a credit card holder before raising his interest rate for missing a payment, when the card agreement had already spelled out the maximum rate?
The Court's answer
No — the Court ruled that Chase did not have to give McCoy advance notice before raising his interest rate after he defaulted, because his card agreement had already spelled out both the standard rate and the maximum default rate. Since nothing in the agreement's terms actually changed, the rate hike counted as carrying out an existing term rather than creating a new one requiring notice under the regulation.
The Court reached this conclusion largely by deferring to the Federal Reserve Board's own explanation of its ambiguous regulation, offered in a brief to the Court, finding no reason to think that explanation was a litigation tactic rather than the Board's genuine, longstanding view.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Credit card companies that used similar 'reserved right to raise your rate up to X if you default' clauses were confirmed to have complied with the disclosure rules in effect at the time, shielding them from a wave of potential lawsuits over retroactive rate hikes on existing cardholders before 2009 reforms took effect.
What changes now
The case is sent back to the Ninth Circuit to apply the Supreme Court's conclusion that no advance notice was required under the regulation as it existed at the time. Because Congress and the Board later changed the rules in 2009 to require 45 days' advance notice of such rate increases, this decision mainly resolves disputes over rate hikes that occurred before those reforms took effect.
What this does not decide
The Court did not decide whether advance notice is good policy — it noted Congress and the Board have since required 45 days' notice going forward. This ruling only concerns the older version of Regulation Z that applied before the 2009 Credit CARD Act reforms took effect.
How the Court got there
The legal reasoning, step by step
- The Court first had to decide whether Regulation Z's text clearly answered the question of whether raising a previously-disclosed default rate counts as a 'change in terms' requiring advance notice, or whether the text was ambiguous enough to require outside guidance.
- Reading the regulation's provisions together, the Court found genuine ambiguity: one reading treated any rate increase tied to default as needing notice, while another treated an increase already spelled out in the original agreement as merely enforcing an existing term, not changing one.
- Because the text alone did not resolve the question, the Court applied Auer deference — the rule that courts should accept an agency's interpretation of its own ambiguous regulation, even one offered in a legal brief, unless that reading is plainly wrong or contradicts the rule's text.
- The Court found the Federal Reserve Board's amicus brief, which said no advance notice was required here, was not a litigation-driven excuse invented for this case, since the Board was not a party and had expressed the same view in earlier rulemaking documents going back to 2004.
- The Court also checked whether the Board's own published Official Staff Commentary contradicted the Board's brief, and found the Commentary just as ambiguous as the regulation itself, so it gave the Court no reason to reject the Board's litigation-brief interpretation.
- Having found the Board's interpretation reasonable and consistent with its past practice, the Court accepted that interpretation as controlling under Auer.
Doctrinal impact
Cases affected by this decision
Reaffirms Auer v. Robbins (519 U. S. 452)
The Court relies on Auer's rule that courts defer to an agency's reasonable reading of its own ambiguous regulation.
Distinguishes Gonzales v. Oregon (546 U. S. 243)
The Court says that case withheld deference only because the regulation there just restated the statute, unlike here.
Distinguishes Christensen v. Harris County (529 U. S. 576)
The Court explains that case denied deference because the regulation was unambiguous, unlike the ambiguous rule here.