How Many Days to Respond to Discovery: The 30-Day Rule and Exceptions

In federal court, the number of days to respond to discovery is 30, counted from the day after you are served with interrogatories, requests for production, or requests for admission.¹ Miss that window and the consequences are not just a late response. Objections you could have raised are waived, facts in requests for admission are automatically treated as admitted, and the court is required to order you to pay the other side’s attorney fees if a motion to compel is granted.

The 30-Day Rule Across the Three Types of Written Discovery

The Federal Rules of Civil Procedure set the same baseline for the three main forms of written discovery. Interrogatories (written questions), requests for production (documents and electronically stored information), and requests for admission (statements you must admit or deny) each carry a 30-day response window measured from the date of service.¹²³

State courts usually fall in a similar range, often somewhere between 28 and 35 days, but the number depends on the jurisdiction. The rules of the court where your case is pending always control, so check them rather than assume the federal timeline applies.

One timing wrinkle applies to document requests served early in a case. If a Rule 34 request is delivered more than 21 days after the summons and complaint are served but before the parties’ Rule 26(f) planning conference, the response clock does not start until that conference happens. The request is treated as if served at the conference, giving you 30 days from that date.⁴

Counting the Days Correctly

Rule 6(a) spells out the counting method. Start with the day after you were served, not the day of service itself. Count forward every calendar day, weekends and holidays included. If the last day falls on a Saturday, Sunday, or legal holiday, the deadline rolls to the end of the next business day.⁵ Your court may also observe state or local holidays, so confirm the calendar for the specific court where your case is filed.⁶

If the discovery request reaches you by mail rather than electronically, federal rules add three extra days to the response period.⁷ Electronic service, which is the default in most federal courts today, does not trigger the extension. In practice, most federal deadlines are a flat 30 days.

When the Clock Is Not 30 Days

A few situations run on shorter or different timers, and treating them like ordinary interrogatories is a common mistake.

Non-Parties Served With a Subpoena

If you are not a party to the lawsuit but receive a subpoena demanding documents or inspection, Rule 45 gives you a tighter window. A written objection must be served before the earlier of two dates: the compliance date stated in the subpoena, or 14 days after the subpoena was served.⁸ Miss it and you lose the ability to challenge the subpoena’s scope or burden.

Mandatory Initial Disclosures

Before either side sends a formal discovery request, federal rules require both parties to hand over basic case information without being asked. The deadline for these initial disclosures is 14 days after the Rule 26(f) conference, the early meeting where the parties discuss their discovery plan. A party joined later gets 30 days from being served or joined.⁴ The 14-day window catches people off guard because it arrives before formal discovery even begins, and the sanctions for missing it mirror those for blowing a discovery response deadline.

Getting More Time to Respond

The simplest way to extend a discovery deadline is a stipulation with opposing counsel. Contact the other side, explain why you need more time, propose a specific new date, and put the agreement in writing.⁹ One limit: if the agreed extension would interfere with a court-ordered deadline for completing discovery, filing a motion, or going to trial, the stipulation needs court approval.

If opposing counsel will not agree, you have to file a motion for an extension. Rule 6(b) draws a sharp line based on when you ask. Request an extension before the deadline expires, and the court only needs to find good cause. Request it after the deadline has already passed, and you have to show “excusable neglect,” meaning the delay was justified despite your failure to act on time.¹⁰ Courts weigh the reason for the delay, your overall diligence, and whether the other side would be harmed by extra time. Ask early.

What Happens If You Miss the Deadline

The consequences fall into three layers, and they compound.

Objections Are Waived

Under Rule 33, any objection to an interrogatory that is not raised in a timely response is waived unless the court excuses the failure for good cause.¹ The same principle applies to other written discovery. Questions you could have legitimately challenged as overly broad, irrelevant, or privileged become questions you must answer in full. Loss of privilege is especially costly, because it can force disclosure of attorney-client communications or work product that a timely response would have protected.

Requests for Admission Are Automatically Admitted

Requests for admission carry a uniquely harsh consequence. Fail to respond within 30 days and each requested fact is automatically deemed admitted. No court order is required, no motion is filed, no warning is issued.³ Those admissions are then treated as conclusively established for the rest of the case. If the other side asked you to admit that you breached the contract and the deadline slipped, the court treats that as settled fact.

Undoing a deemed admission is possible but hard. You have to file a motion to withdraw the admission and clear a two-part test: the withdrawal must help resolve the case on its actual merits, and it must not unfairly prejudice the party who obtained the admission.³ Courts grant these motions sometimes, but the outcome is never guaranteed, and the burden is entirely on you.

Motion to Compel and Mandatory Fee Shifting

When responses are overdue, the opposing party’s usual first move is a motion to compel. Rule 37 requires the motion to certify that the moving party tried to resolve the dispute informally before going to court.¹¹ If the judge grants the motion, the court sets a new hard deadline.

The financial sting comes next. When a motion to compel is granted, the court must order the non-compliant party, or the attorney who advised the non-compliance, to pay the other side’s reasonable expenses for bringing the motion, including attorney fees.¹¹ The word “must” does heavy work in that rule. The fee award is the default unless the court finds the opposition was substantially justified or that other circumstances make the award unjust. In a straightforward missed-deadline case, neither exception typically fits.

Escalating Sanctions

If you still do not comply after the court orders a response, sanctions escalate. Available measures include:

Courts reserve dismissal and default judgment for willful or repeated violations rather than honest mistakes, but the presumption of good faith tends to erode once the court has already granted an extension and ordered compliance.

Loss of Electronic Evidence

A related risk sits alongside the response deadline itself. If electronically stored information that should have been preserved is lost because you failed to take reasonable steps to keep it, Rule 37(e) authorizes curative measures proportional to the harm. If the court finds you acted with intent to deprive the other side of the evidence, harsher sanctions become available, including an adverse inference instruction telling the jury to assume the destroyed evidence was unfavorable to you, or dismissal of your claims.¹¹ The duty to preserve kicks in as soon as litigation is reasonably anticipated, often well before any discovery request arrives.

1
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 33 – Interrogatories to Parties
2
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 34 – Producing Documents, Electronically Stored Information, and Tangible Things, or Entering onto Land, for Inspection and Other Purposes
3
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 36 – Requests for Admission
4
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 26 – Duty to Disclose; General Provisions Governing Discovery
5
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 6 – Computing and Extending Time; Time for Motion Papers
6
U.S. Office of Personnel Management. Federal Holidays
7
Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 6 – Time
8
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena
9
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 29 – Stipulations About Discovery Procedure
10
Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 6 – Computing and Extending Time
11
Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery; Sanctions