## Facts

- Van Sweringen Corporation issued $30 million in notes in 1930 under an indenture naming Guaranty Trust Company of New York as trustee for noteholders.
- In 1931, amid the corporation’s financial distress, Guaranty participated in an exchange offer for outstanding notes: cash equal to 50% of face value plus stock per $1,000 note, open through December 15, 1931.
- York, a non-accepting noteholder who received $6,000 in notes as a gift in 1934, later alleged Guaranty breached fiduciary duties and engaged in fraud by supporting the exchange offer and failing to disclose self-interest.
- In 1940, accepting noteholders sued Guaranty on related theories; York unsuccessfully sought to intervene, and judgment for Guaranty was affirmed.
- In 1942, York filed a diversity class action in federal district court on behalf of non-accepting noteholders seeking equitable relief for breach of trust.
- Guaranty moved for summary judgment, asserting the claim was barred by New York’s statute of limitations; the district court granted the motion.

## Issues

1. In a diversity case enforcing a state-created right, must a federal court sitting in equity apply a state statute of limitations that would bar the claim in state court?
2. Under Erie principles, should the choice between applying state limitations law or federal equitable practice turn on whether the choice would materially affect the result?

## Decision

- The Supreme Court reversed the Second Circuit and reinstated judgment for Guaranty.
- The Court held that a federal court exercising diversity jurisdiction may not grant relief on a state-created claim if the claim would be time-barred in state court.
- The Court rejected the view that federal “equity” practice permits disregarding a state limitations period when the state has attached it as a condition on enforcing the right.
- Justices Rutledge and Murphy dissented; Justices Roberts and Douglas did not participate.

## Legal Principles

- In diversity cases, federal courts must apply state law rules that are outcome-determinative in the sense that ignoring them would substantially change the result compared to state court.
- Labels such as “substantive” versus “procedural” do not control; the question is functional: whether disregarding the state rule would significantly affect recovery.
- A state statute of limitations that would bar recovery in state court must be applied in federal court when the claim is state-created and no countervailing federal policy requires a different rule.
- Federal equity jurisdiction does not allow a federal court to give a state-created right “an existence it does not have” under state conditions on enforcement, including time limits.
- Applying different time bars in state and federal court would encourage forum selection based on differing outcomes and would produce unequal treatment of similarly situated litigants.

## Conclusion

The Court held that, in diversity, federal courts must apply state statutes of limitations when enforcing state-created rights if ignoring the limitation would change the litigation’s outcome, thereby aligning federal results with those in state court under Erie.


Guaranty Tr. Co. of N.Y. v. York, 326 U.S. 99 (1945)