Non-joinder of claims required to be joined by the entire controversy doctrine shall result in the preclusion of the omitted claims to the extent required by the entire controversy doctrine, except as otherwise provided by R. 4:64-5 (foreclosure actions) and R. 4:67-4(a) (leave required for counterclaims or cross-claims in summary actions). Claims of bad faith, which are asserted against an insurer after an underlying uninsured motorist/underinsured motorist claim is resolved in a Superior Court action, are not precluded by the entire controversy doctrine.
Rule 4:30A.Entire controversy doctrine
Last amended September 1, 2016 · Current through June 18, 2026 · Last verified July 7, 2026
In one sentenceRule 4:30A codifies New Jersey's entire controversy doctrine, providing that failing to join claims the doctrine requires results in preclusion of the omitted claims, with exceptions for foreclosure actions, summary-action counterclaims, and certain post-UM/UIM insurer bad-faith claims.
Full Text of Rule 4:30A
Amendment History
New Jersey publishes each rule’s amendment record in a “History” note beneath the rule. It is reproduced verbatim below; the “R.R.” citations refer to the former Revised Rules numbering the current rules replaced.
Adopted June 29, 1990 to be effective September 4, 1990; amended July 14, 1992 to be effective September 1, 1992; amended July 10, 1998 to be effective September 1, 1998; amended August 1, 2016 to be effective September 1, 2016.
Plain-English Summary
New Jersey’s entire controversy doctrine requires a litigant to bring all aspects of a controversy in one action, and this rule gives that doctrine its teeth. Non-joinder of claims the doctrine requires to be joined results in the preclusion of the omitted claims, to the extent the doctrine requires — so a party who holds back a related claim may lose the right to bring it later.
The rule carves out defined exceptions. Preclusion does not apply as the foreclosure rules and the leave requirement for counterclaims in summary actions provide, and claims of bad faith asserted against an insurer after an underlying uninsured- or underinsured-motorist claim is resolved are not precluded by the doctrine. The doctrine is a powerful reason to plead the whole controversy the first time.
Frequently Asked Questions
What is the entire controversy doctrine?
A New Jersey doctrine requiring a litigant to bring all aspects of a controversy in a single action. Under Rule 4:30A, failing to join claims the doctrine requires results in preclusion of the omitted claims.
Are there exceptions to the entire controversy doctrine?
Yes. The rule excepts foreclosure actions, the leave requirement for counterclaims and cross-claims in summary actions, and insurer bad-faith claims asserted after an underlying uninsured- or underinsured-motorist claim is resolved.
Source & verification. The rule text and amendment history are reproduced verbatim from the
official New Jersey Rules of Court (N.J. Ct. R. 4:30A). Prescribed by the Supreme Court of New Jersey (N.J. Const. art. VI, § 2, ¶ 3). The plain-English summary is original and written by us. Last verified July 7, 2026. ·
Official source
Also known as: entire controversy doctrineclaim preclusionmandatory joinder of claimsnon-joinder preclusion