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Rule 1031.1.Cross-claim.

Adopted March 23, 2007 · Not amended since adoption · Last verified June 30, 2026

In one sentenceRule 1031.1 lets any party set forth in an answer or reply, under the heading “Cross-claim,” a cause of action against another party who may be solely liable on the underlying claim or liable to or with the cross-claimant on a claim arising from the same transaction or occurrence.

Full Text of Rule 1031.1

Text sizeJump to: (1) (2)

Any party may set forth in the answer or reply under the heading ‘‘Cross-claim’’ a cause of action against any other party to the action that the other party may be
(1) solely liable on the underlying cause of action or
(2) liable to or with the cross-claimant on any cause of action arising out of the transaction or occurrence or series of transactions or occurrences upon which the underlying cause of action is based.
End

Plain-English Summary

This rule lets co-parties assert claims against each other. Any party may set forth in an answer or reply, under the heading “Cross-claim,” a cause of action against another party to the action.

The cross-claim is defined by the relationship of liability. It reaches a party who may be solely liable on the underlying cause of action, or liable to or together with the cross-claimant on any cause of action arising out of the same transaction or occurrence on which the underlying claim is based.

Frequently Asked Questions

What is a cross-claim?

A claim by one party against a co-party, set out under the heading “Cross-claim,” where that co-party may be solely liable on the underlying claim or liable with the cross-claimant on a claim arising from the same transaction or occurrence.

Official Note

Official Note: The term ‘‘underlying cause of action’’ refers to the cause of action set forth in the plaintiff’s complaint or the defendant’s counterclaim.

Official Note: Subparagraph (2) permits a cross-claimant to raise a claim that another party is liable over to the cross-claimant or jointly and severally liable with the cross-claimant. The right to assert a cross-claim in a class action is limited by Rule 1706.1 to the grounds set forth in that rule.

Amendment History

The provisions of this Rule 1031.1 adopted March 23, 2007, effective June 1, 2007, 37 Pa.B. 1480.

Source & verification. Rule text, the Official Note, and the amendment history are reproduced verbatim from the Pennsylvania Code, Title 231, the official compilation of rules adopted by the Supreme Court of Pennsylvania. This rule has not been amended since its adoption. Last verified June 30, 2026. · Official text
Also known as: cross-claimclaim against co-party