The Final Judgment Rule and Interlocutory Appeals
In federal court, a party usually may appeal only after the case ends in a final judgment. This guide explains the final judgment rule, partial judgments, interlocutory appeals and the collateral order doctrine.

Final decisions
The courts of appeals … shall have jurisdiction of appeals from all final decisions of the district courts of the United States …
The Supreme Court described a final decision as “one which ends the litigation on the merits and leaves nothing for the court to do but execute the judgment” (Catlin v. United States, 324 U.S. 229, 233 (1945)). Under Rule 58(a), “Every judgment and amended judgment must be set out in a separate document,” with listed exceptions for post-judgment motions.
Partial final judgments
In a case with several claims or parties, the court “may direct entry of a final judgment as to one or more, but fewer than all, claims or parties only if the court expressly determines that there is no just reason for delay” (Fed. R. Civ. P. 54(b)). Otherwise, an order resolving only part of the case is not final.
Interlocutory appeals
- Injunctions. Orders “granting, continuing, modifying, refusing or dissolving injunctions” are immediately appealable (28 U.S.C. § 1292(a)(1)).
- Certified questions. A district judge may certify that an order “involves a controlling question of law as to which there is substantial ground for difference of opinion” and that an immediate appeal “may materially advance the ultimate termination of the litigation”; the court of appeals then decides whether to hear it (§ 1292(b)).
- Collateral orders. A small class of orders that “finally determine claims of right separable from, and collateral to, rights asserted in the action” may be appealed immediately (Cohen v. Beneficial Industrial Loan Corp., 337 U.S. 541, 546 (1949)).
- Mandamus. In rare cases, a court of appeals may issue a writ directing a lower court to act or refrain from acting.
Researching final judgment rule in your state
To research final judgment rule for a real matter, start with the primary sources. For example, read the statute, the rule and the documents in your own file. Then look for recent appellate decisions from your state, because they control how local courts read the law. After that, compare what you found with the federal rules that may also apply. Our state procedures guide and the Research Center can help you find and check each source.
Sources and further reading
Official sources used on this page:
Related reading on Lawtopolis:
Sources
- 28 U.S.C. §§ 1291, 1292
- Fed. R. Civ. P. 54(b), 58(a)
- Catlin v. United States, 324 U.S. 229 (1945)
- Cohen v. Beneficial Industrial Loan Corp., 337 U.S. 541 (1949)
Official sources:
lawtopolis.com/usc/28/1291
lawtopolis.com/usc/28/1292
law.cornell.edu/rules/frcp/rule_54
static.case.law/us/324/html/0229-01.html
Sources last reviewed: 2026-10-23
Lawtopolis provides legal information and education, not legal advice. Using this site does not create an attorney-client relationship. Laws and court rules vary by jurisdiction and change over time; verify every authority against the official source and consult a licensed attorney in your jurisdiction about your situation.
