A crossclaim in New York is a claim one defendant files against a co-defendant inside the same lawsuit, tucked into the answer rather than filed as a separate action. CPLR 3019(b) sets the rule, and it is unusually generous: a defendant can assert “any cause of action” against a co-defendant, including a claim that the co-defendant is or may be liable for all or part of what the plaintiff is seeking.1New York State Senate. New York Code CVP 3019 – Counterclaims and Cross-Claims In practice, most crossclaims are for contribution or indemnification, but the statute itself is not limited to those.
What CPLR 3019(b) Allows
Crossclaims in New York are permissive. A defendant who chooses not to file one does not waive the underlying claim, and the same dispute can be brought in a separate lawsuit later. No court permission is required. The crossclaim goes into the answer, and CPLR 3011 recognizes an answer containing a crossclaim as its own type of pleading.2New York State Senate. New York Code CVP 3011 – Kinds of Pleadings
The scope is broad. Unlike the federal rule, CPLR 3019(b) does not require the crossclaim to arise from the same transaction or occurrence as the plaintiff’s claim. A car-accident defendant could in theory assert a wholly unrelated breach-of-contract claim against a co-defendant. Courts keep a check on this through CPLR 603, which lets a judge sever a crossclaim or order a separate trial “in furtherance of convenience or to avoid prejudice.”3New York State Senate. New York Civil Practice Law and Rules 603 – Severance and Separate Trials So the statute is generous, but a crossclaim that would confuse the jury or drag out discovery may not stay in the main case.
Crossclaim, Counterclaim, or Third-Party Claim
These three tools get mixed up constantly, and the procedural consequences of picking the wrong one are real.
- A counterclaim goes from a defendant against the plaintiff, governed by CPLR 3019(a), and lives inside the answer.
- A crossclaim goes from a defendant against a co-defendant, someone already on the same side of the caption. It lives inside the answer, under CPLR 3019(b), and no court permission is needed.
- A third-party claim, or impleader, brings in someone who is not yet in the lawsuit. CPLR 1007 governs it, and it requires a separate third-party summons and complaint filed within 90 days of serving the answer. Miss that window and you need leave of court.4New York State Senate. New York Civil Practice Law and Rules 1007
The rule of thumb is simple. If the person you want to sue is already a co-defendant, use a crossclaim. If they are not in the case yet, use third-party practice. Crossclaims skip the new summons, the extra index-number fee, and the 90-day deadline.
What You Can Bring as a Crossclaim
Contribution
Contribution is the workhorse of multi-defendant tort cases. CPLR 1401 allows two or more people who are “subject to liability for damages for the same personal injury, injury to property or wrongful death” to seek contribution from each other, and the amount owed is based on relative share of fault.5New York State Senate. New York Code CVP 1401 – Claim for Contribution A contribution crossclaim needs enough factual detail to show how the co-defendant contributed to the plaintiff’s injury; a bare assertion that the co-defendant “is also liable” is vulnerable to a motion to dismiss.
Indemnification
Indemnification crossclaims come in two flavors. Contractual indemnification depends on a written agreement, often found in construction contracts, leases, and service agreements, that shifts liability from one party to another. Common-law indemnification, sometimes called implied indemnification, applies when a party is held liable purely because of someone else’s wrongdoing, typically in vicarious-liability situations. New York courts require the party seeking common-law indemnification to be free from its own negligence; a defendant who was actively at fault has a contribution claim, not an indemnification claim.
The two forms behave differently at trial. Contractual indemnification can be enforced regardless of fault allocation as long as the contract language supports it. Common-law indemnification requires proving that the co-defendant owed an independent duty and that the crossclaimant’s liability is only derivative.
Other Claims
Because CPLR 3019(b) permits any cause of action, breach of contract, insurance coverage disputes, and fraud claims between co-defendants can all be crossclaims. The strategic question is whether keeping the claim in the existing case makes sense, given the risk that a judge could sever it under CPLR 603.
Filing a Crossclaim
You do not file a crossclaim as a separate document. It goes into your answer. Under CPLR 3012, the deadline for serving an answer is 20 days after personal service within New York, or 30 days if service was accomplished through substituted service or service on an authorized state official.6New York State Senate. New York Code CPLR 3012 – Service of Pleadings and Demand for Complaint The crossclaim rides on those same deadlines.
If you realize after answering that you need to assert a crossclaim, CPLR 3025 permits amendment. A party can amend once without court permission within 20 days after serving the original pleading, or before the response period expires. After that, you need either court leave or a stipulation from every party, though the statute directs courts to grant leave “freely” on fair terms.7New York State Senate. New York Code CVP R3025 – Amended and Supplemental Pleadings
Service follows CPLR 2103. Every party who has appeared in the case must receive a copy of the answer containing the crossclaim, typically served on their attorney of record by personal delivery, mail, or authorized electronic means. A co-defendant who has not yet appeared through counsel must be served directly using one of the methods in CPLR 2103(b).8New York State Senate. New York Civil Practice Law and Rules 2103 – Service of Papers
Responding to a Crossclaim
This is where co-defendants get tripped up. Under CPLR 3011, if a crossclaim does not include a demand for an answer, the allegations are “deemed denied or avoided” automatically.2New York State Senate. New York Code CVP 3011 – Kinds of Pleadings No responsive pleading is required.
When a crossclaim does demand an answer, the co-defendant has to respond or face a pleading default. The response deadline follows the same 20-day rule under CPLR 3012.6New York State Senate. New York Code CPLR 3012 – Service of Pleadings and Demand for Complaint Miss that deadline, and the factual allegations can be treated as admitted for liability, with the court still determining damages. So the first step when you receive a co-defendant’s answer is to check whether it contains a crossclaim, and if so, whether that crossclaim demands a response.
How Settlement Affects Crossclaims
Settlement in a multi-defendant case with active crossclaims runs through General Obligations Law 15-108, and every defendant should understand the math before signing anything.
When a defendant settles with the plaintiff in good faith, the settling defendant is released from any contribution claims by the remaining co-defendants.9New York State Senate. New York Code GOL 15-108 – Release or Covenant Not to Sue The trade-off: the settling defendant also gives up any right to seek contribution from anyone else. You cannot settle out of the plaintiff’s case and then pursue your co-defendants for their share.
For the defendants who stay in the case, 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. The “whichever is greatest” language exists to keep a plaintiff from cutting a token deal with one defendant to protect a large claim against the others. If a co-defendant who was 60% at fault settles for a nominal figure, the non-settlors still receive a credit measured by that 60% equitable share.
To qualify under GOL 15-108, the settlement has to 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. Non-settling parties can challenge a sham settlement that keeps a nominal defendant in the case to shift liability.
Challenges and Court Management
A co-defendant can move to dismiss a crossclaim under CPLR 3211(a), and the most common ground is failure to state a cause of action. An indemnification crossclaim that identifies no contract and no theory of vicarious liability, for example, will not survive. Other CPLR 3211(a) grounds apply as well, including statute of limitations, lack of standing, and prior release.
If the crossclaim survives, it opens up discovery between co-defendants. CPLR 3101 entitles every party to “full disclosure of all matter material and necessary” to prosecuting or defending an action, which means co-defendants can depose each other, demand documents, and serve interrogatories, even though they sit on the same side of the caption against the plaintiff.10New York State Senate. New York Code CVP 3101 – Scope of Disclosure That expansion of discovery is part of why some defendants delay filing a crossclaim until the main case has narrowed.
Courts can also cut a crossclaim short before trial. Summary judgment under CPLR 3212 is available where no genuine dispute of material fact exists, and severance under CPLR 603 remains an option any time a crossclaim threatens to confuse the jury or prejudice the parties in the main action. Severance is particularly common when the crossclaim raises issues unrelated to the plaintiff’s theory of the case.