The AVOID Act transformed third-party practice in New York by attaching hard deadlines to every stage of the impleader process. For defendants in construction, premises liability, and transportation cases, understanding exactly which clock applies and when it starts is now a foundational litigation skill. This article collects every relevant deadline in one place.
The deadline framework: a complete reference
Before diving into the mechanics of each deadline, here is a consolidated view of the entire framework. The deadline calculator applies these rules to specific dates and claim types.
These six figures interact with each other. The hard cap overrides every other deadline: even if you are within your 90-day or 60-day window, you cannot file if 12 months have elapsed since your answer. And the note-of-issue prohibition operates independently: regardless of where you fall on any deadline chart, no third-party complaint may be filed once the note of issue is on the record.
The 90-day deadline for contractual claims
The most commonly applicable deadline is the 90-day window for contractual claims in a first third-party action. This covers indemnification and failure-to-procure-insurance claims, which are the dominant form of impleader in construction tort litigation.
The 90-day figure reflects the chapter amendments to the original AVOID Act. The original statute set the as-of-right period for contractual claims at 60 days, which the defense bar consistently criticized as unworkable in complex multi-subcontractor cases. The legislature responded by extending the as-of-right period to 90 days. See what changed in the chapter amendments for a full account of that legislative history.
The clock for a contractual claim runs from the date you served your answer, not from the date the complaint was filed or the date you were served. That distinction matters in cases where there is a gap between service and the date counsel formally serves the answer.
What "contractual" means in this context
A contractual claim under the AVOID Act is one that arises from a written agreement between the defendant and the proposed third-party defendant. The most common examples are:
- Indemnification clauses in subcontracts and owner-contractor agreements
- Failure-to-procure-insurance obligations, where the subcontractor was required to name the general contractor as an additional insured but did not
If your impleader theory depends on proving the existence and terms of a contract, it is a contractual claim. If the contract is unavailable, disputed, or does not contain the relevant provisions, you may need to pursue a non-contractual route with a shorter timeline.
The 60-day deadline for non-contractual claims
For contribution and common-law indemnification claims (claims that do not depend on a written contract), the AVOID Act sets a 60-day window. Critically, the clock on these claims does not start when you serve your answer. It starts when you "become aware" that the proposed third-party defendant may be liable.
That phrase is new to the statute. As of the effective date of April 18, 2026, courts have not yet established a definitive standard for what "becoming aware" means in practice. The becoming-aware standard article tracks the emerging case law on this question.
In practice, the non-contractual deadline is more operationally challenging than the contractual one. With contractual claims, the clock starts at a definite event (service of answer) and the claim basis is documented in a contract. With non-contractual claims, the clock may be running before you realize it, and counsel must be alert to any event that could constitute "becoming aware."
The 45-day rule for subsequent third-party defendants
When a third-party defendant is itself sued by another party in the same action, the AVOID Act treats that defendant differently. A subsequent third-party defendant has 45 days from serving its answer to file its own third-party complaint, regardless of whether the underlying claim is contractual or non-contractual.
The 45-day window reflects the legislature's judgment that downstream defendants in multi-party construction cases have less investigative work to do: the litigation is already in progress, the parties are largely known, and much of the relevant documentation has already surfaced.
The 120-day employer exception
The employer exception is the most favorable deadline in the statute and applies in a narrow set of circumstances. Where the proposed third-party defendant is an employer covered by Workers' Compensation Law, and either (a) the employee's injury qualifies as a "grave injury" under WCL § 11, or (b) the employer's identity was unknown when the answer was served, the defendant has 120 days from the later of those two triggering events to file.
This deadline is covered in detail in the employer exception article. For present purposes, the key operational point is that the 120-day clock has its own start date, which may be significantly later than the answer date. Defendants with potential grave-injury exposure should track both the standard deadlines and the employer exception trigger separately.
The 30-day extension
The AVOID Act permits the parties to agree in writing to extend any base deadline by up to 30 days. This extension does not require a court order. It is a bilateral agreement that, in practice, is most useful when counsel needs additional time to locate contracts, obtain certificates of insurance, or complete a conflicts check before filing.
There is no mechanism to chain multiple 30-day extensions. One extension of up to 30 days is what the statute permits. Beyond that, any further extension requires a court order based on a showing of good cause and that the extension serves the interest of justice.
The 12-month hard cap
No third-party complaint may be filed more than 12 months after the defendant served its answer, except with the written consent of both the plaintiff and the court. This hard cap is absolute. Unlike the base deadlines, which can be extended by agreement or court order, the hard cap requires both plaintiff consent and judicial approval.
The practical effect of the hard cap is felt most acutely in cases that are served in the months after a significant incident, where the investigation is slow, or where defendants are managing large dockets and individual cases fall through the cracks. A case served in April 2026 with an April 2027 hard cap will need active monitoring to ensure that impleader decisions are made well before that date.
The note-of-issue prohibition
Operating entirely separately from the timeline above is the prohibition on filing third-party complaints after the note of issue. This rule does not appear on any deadline chart because it is not a deadline in the ordinary sense: it is a categorical bar that applies as soon as the note of issue enters the record, regardless of where the defendant stands on any other deadline.
If the note of issue is filed on day 45 after your answer, you cannot file a third-party complaint even though you have 45 days remaining on your 90-day window. This is one of the provisions that most surprised defense practitioners when the statute was enacted, and courts are expected to enforce it strictly.
Tracking all deadlines together
Because different deadlines run from different start dates, defendants in active litigation may be managing multiple clocks simultaneously. A single case can have a 90-day contractual window running from the answer date, a separate 60-day non-contractual window running from a later awareness date, and a potential employer exception clock running from a different triggering event.
Use the deadline calculator to apply the framework to specific dates and claim types in any given matter. The compliance checklist provides a structured approach to building the operational processes that ensure no deadline is missed across an entire litigation portfolio.