Crossclaims in New York: Filing, Response, and GOL 15-108

A crossclaim in New York is a claim that one defendant files against a co-defendant inside the same lawsuit, included in the answering pleading under CPLR 3019(b). The rule is unusually broad: it covers “any cause of action” between co-parties, not only claims that grow out of the plaintiff’s complaint.¹ Most crossclaims are used to shift or share liability through contribution or indemnification, but the statute is not limited to those theories.

Crossclaims are permissive. A defendant who skips one does not waive it and can bring the same claim in a later, separate action. No court permission is needed to include one in your answer, and the answer containing a crossclaim is a recognized pleading under CPLR 3011.²

Crossclaim, Counterclaim, or Third-Party Claim

These three overlap in everyday speech and get mixed up constantly, but the procedure for each is different.

A counterclaim is a defendant’s claim against the plaintiff. It is governed by CPLR 3019(a) and goes in the answer.
A crossclaim is a defendant’s claim against a co-defendant already in the case. It is governed by CPLR 3019(b), goes in the answer, and requires no court permission.
A third-party claim (impleader) is a defendant’s claim against someone not yet in the lawsuit, alleging that person may be liable for all or part of the plaintiff’s claim. Impleader is governed by CPLR 1007, requires a separate third-party summons and complaint, and must be filed within 90 days of serving the answer; after that, you need court leave.³

The dividing line is whether the person you want to sue is already a defendant. If yes, use a crossclaim. If not, use third-party impleader. Crossclaims are easier procedurally because there is no new summons, no additional index number fee, and no 90-day clock.

What You Can Assert in a Crossclaim

CPLR 3019(b) permits “any cause of action” between co-defendants and specifically allows a claim that a co-defendant “is or may be liable to the cross-claimant for all or part of a claim asserted in the action.”¹ New York is more permissive than federal court on this point: Rule 13(g) in federal practice requires the crossclaim to arise from the same transaction or occurrence as the main action, but 3019(b) imposes no such restriction. In theory, a defendant in a car accident case could file a crossclaim against a co-defendant for an unrelated breach of contract.

In practice, courts retain discretion under CPLR 603 to sever crossclaims or order separate trials “in furtherance of convenience or to avoid prejudice.”⁴ A crossclaim that would confuse the jury or expand discovery far beyond the main case can be split off. That is why most filed crossclaims stay close to the plaintiff’s theory of liability.

Contribution and Indemnification: The Most Common Uses

Contribution

Contribution is the standard crossclaim in multi-defendant tort cases. CPLR 1401 allows two or more people “subject to liability for damages for the same personal injury, injury to property or wrongful death” to claim contribution from each other, with amounts apportioned by relative share of fault.⁵ A defendant who ends up paying more than their equitable share can recover the overage from a co-defendant whose share they covered.

A contribution crossclaim needs enough factual content to show how the co-defendant actually contributed to the plaintiff’s harm. A bare allegation that the co-defendant “is also liable,” with no explanation of how, is vulnerable to a motion to dismiss.

Indemnification

Indemnification crossclaims take two forms. Contractual indemnification rests on a written agreement, often found in construction contracts, leases, or service agreements, in which one party agreed to cover another’s liability. Common-law (implied) indemnification applies when a party is held liable for someone else’s wrongdoing, usually in a vicarious-liability setting.

The two forms work differently. Contractual indemnification can be enforced according to its terms regardless of how fault is allocated, so long as the contract language supports it. Common-law indemnification requires the party seeking it to be free from its own negligence; a defendant who was actively at fault has to settle for contribution instead.

Other Causes of Action

Because 3019(b) is open-ended, crossclaims also appear for breach of contract between co-defendants, disputes over insurance coverage, and even fraud. The strategic question is whether the claim gains anything from being tried alongside the plaintiff’s case or whether severance will send it to its own track anyway.

Filing a Crossclaim

A crossclaim is a part of the answer, not a separate filing. Under CPLR 3012, an answer is due 20 days after personal service within New York, or 30 days when service was made through other authorized methods such as substituted service or service on a state official.⁶ The crossclaim rides on those same deadlines.

If you realize you needed a crossclaim after your answer is already out, CPLR 3025 governs amendment. You can amend once as of right within 20 days after serving the original pleading, or before the response period runs. After that, you need either court leave or a stipulation from all parties, though courts are directed to grant leave “freely” on fair terms.⁷

Service of the answer containing the crossclaim follows CPLR 2103. Every party already in the case gets a copy, typically served on counsel of record. A co-defendant who has not yet appeared through an attorney must be served directly using one of the methods listed in CPLR 2103(b).⁸

Responding to a Crossclaim

This is where New York diverges from what many out-of-state litigants expect. Under CPLR 3011, if a crossclaim does not include a demand for an answer, it is “deemed denied or avoided” automatically.² No separate responsive pleading is required, and the co-defendant does not default by staying silent.

When the crossclaim does demand an answer, the co-defendant has to respond or risk a pleading default. The deadline mirrors the standard 20-day rule in CPLR 3012.⁶ Missing the deadline can lead to the crossclaim’s factual allegations being treated as admitted on liability, with the court still deciding damages. The practical rule: read every co-defendant’s answer carefully and check whether any crossclaim inside it demands a response.

How Courts Dispose of Crossclaims

Motions to Dismiss

A co-defendant can move to dismiss a crossclaim under CPLR 3211(a). The most common ground is failure to state a cause of action, for example an indemnification crossclaim that identifies no contract and no theory of vicarious liability. Other 3211(a) grounds apply too, including lack of standing, statute of limitations, and prior release.¹

Discovery

A surviving crossclaim becomes part of the case for discovery. Under CPLR 3101, every party is entitled to “full disclosure of all matter material and necessary” to prosecuting or defending the action.⁹ Co-defendants with crossclaims against each other can take each other’s depositions, demand documents, and serve interrogatories, even though they share a side of the caption against the plaintiff. That added discovery is one reason some defendants hold off on filing a crossclaim until the main case has narrowed.

Summary Judgment and Severance

Crossclaims can be resolved before trial on summary judgment under CPLR 3212 where there is no genuine dispute of material fact.¹⁰ Judges can also sever a crossclaim for separate trial under CPLR 603 when keeping it in the main case would cause confusion or prejudice, which happens most often with crossclaims that are not tied to the plaintiff’s theory.⁴

Settlement and the GOL 15-108 Credit

Any defendant with a live crossclaim needs to understand General Obligations Law 15-108 before signing a release. When a defendant settles with the plaintiff in good faith, that settling defendant is released from contribution claims by the remaining co-defendants. The trade-off: the settling defendant also gives up any right to seek contribution from anyone else.¹¹ You cannot settle out of the plaintiff’s case and then pursue co-defendants for their share.

For the defendants who do not settle, the plaintiff’s remaining claim is reduced by the greatest of three amounts: the dollar figure stated in the settlement agreement, the actual consideration paid, or the settling defendant’s equitable share of fault under CPLR Article 14.¹¹ The “greatest of” language protects non-settling defendants against low-ball settlements. If a co-defendant who was 60% at fault settles for a nominal amount, the non-settling defendants still get a credit measured by that 60% equitable share.

GOL 15-108 also requires that the settlement be real. The plaintiff must receive consideration greater than one dollar, the agreement must substantially terminate the dispute with the settling defendant, and the release must be delivered before entry of judgment.¹¹ Sham settlements that keep a nominal defendant in the case while shifting exposure to others can be challenged by non-settling parties.

1
New York State Senate. New York Code CVP 3019 – Counterclaims and Cross-Claims
2
New York State Senate. New York Code CVP 3011 – Kinds of Pleadings
3
New York State Senate. New York Civil Practice Law and Rules 1007
4
New York State Senate. New York Civil Practice Law and Rules 603 – Severance and Separate Trials
5
New York State Senate. New York Code CVP 1401 – Claim for Contribution
6
New York State Senate. New York Code CPLR 3012 – Service of Pleadings and Demand for Complaint
7
New York State Senate. New York Code CVP R3025 – Amended and Supplemental Pleadings
8
New York State Senate. New York Civil Practice Law and Rules 2103 – Service of Papers
9
New York State Senate. New York Code CVP 3101 – Scope of Disclosure
10
New York State Unified Court System. CPLR 3212 – Motion for Summary Judgment
11
New York State Senate. New York Code GOL 15-108 – Release or Covenant Not to Sue