To respond to interrogatories in federal court, you have 30 days from the date you were served to send back written answers under oath along with any objections.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33 Each question gets a direct, factual answer or a specific objection; anything you don’t object to on time, you generally can’t object to later. State deadlines differ, so check the rule that applies to your case before you plan anything else.
Read Each Question Twice Before You Write Anything
Go through the interrogatories once to understand what is being asked, then again to plan the work. Some questions are simple identifiers, like your full legal name and date of birth. Others are compound: a single numbered interrogatory that asks you to identify every person, document, and communication connected to some event. Compound questions still require a full answer covering every component.
On the second pass, map each question to what you’ll need to answer it. Which ones require financial records? Which need dates and names you’ll have to verify? Which ask about communications you’ll need to search for? A question asking you to identify “all documents supporting your claim for damages” means locating those documents, not describing them from memory.
Gather the Facts Before Drafting
You have a duty to conduct a reasonable investigation, not just answer from personal recollection. Pull the records the questions point to. Talk to people with firsthand knowledge of the events in dispute. In a workplace case, that might be colleagues who witnessed what happened. In a contract case, it might be the people who negotiated the terms. Their memories can fill gaps the paperwork leaves open.
Drafting Direct, Complete Answers
Answer each interrogatory separately and restate the question above your response. That format keeps the document organized for you, opposing counsel, and the judge.
Answer exactly what was asked. Nothing more. Volunteering extra information is one of the most common mistakes, and every additional fact gives the other side something new to work with that they didn’t ask for. If a question asks when you first noticed water damage in your home, give the date and the details tied to it. Don’t narrate your entire history in the house.
When you genuinely don’t know, say so and describe what you did to find out. A response like “After reviewing my records and speaking with [relevant person], I was unable to determine the exact date” is legitimate. Writing “unknown” with no explanation invites a motion to compel and signals bad faith to the judge. If you have partial information, provide what you have and identify what’s still uncertain.
When and How to Object
Not every question deserves an answer. The rules let you object, but the objection has to be specific. You must explain exactly why the question is improper. Boilerplate objections that recite every possible ground without analysis are routinely overruled and irritate judges.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33
Common legitimate grounds include:
- Privilege. The question seeks information protected by attorney-client privilege or work-product doctrine. “Describe all conversations you had with your attorney about this claim” is squarely privileged.
- Relevance. The information has no bearing on any claim or defense. Discovery is broad but not unlimited.2Legal Information Institute. Federal Rules of Civil Procedure Rule 26
- Overbreadth. The question sweeps in far more than could reasonably be needed, like asking for every email you sent in the last ten years in a one-year contract dispute.
- Undue burden. Answering would take disproportionate time or expense compared to the value of the information, often the issue when data is scattered across sources.
- Vagueness. The question is so unclear you can’t tell what information is actually sought.
Here’s the part people miss: if only part of a question is objectionable, you still have to answer the rest. A partial objection is not a pass on the whole interrogatory. State the objection to the problem portion and answer what remains.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33
Any objection you fail to raise in your timely response is waived. You generally cannot come back weeks later and claim privilege or irrelevance for the first time. Courts excuse a late objection only for good cause, and that bar is high.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33
The Business Records Option
When an interrogatory asks for information buried in your business records, and pulling the answer together would be roughly the same amount of work for either side, Rule 33 gives you an alternative. Instead of writing out the answer, you can identify the specific records where the answer lives and give the other party a reasonable opportunity to review them.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33
This only works if you specify the records in enough detail that the other side can locate them as easily as you could. Pointing at a warehouse of boxes doesn’t cut it. And if deriving the answer is genuinely easier for you because you know your own filing system, the court can reject this approach and order you to answer directly.
Signing and Verifying Under Oath
The person answering the interrogatories signs the answers, not the attorney. Your attorney signs any objections separately.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33 The answers are given under oath, so false statements carry real legal consequences.
You don’t necessarily need a notary. Federal law lets you sign an unsworn declaration under penalty of perjury instead. The declaration must be dated and include language substantially like: “I declare under penalty of perjury that the foregoing is true and correct.”3Office of the Law Revision Counsel. 28 USC 1746 – Unsworn Declarations Under Penalty of Perjury It carries the same legal force as a sworn, notarized statement. Some state courts still require notarization, so check your jurisdiction before relying on the declaration route.
Either way, signing means you are personally vouching for accuracy. False answers can lead to perjury charges and will destroy your credibility if the case reaches trial.
The 30-Day Deadline and Extensions
Federal court gives you 30 days from service to respond.1Legal Information Institute. Federal Rules of Civil Procedure Rule 33 State deadlines vary. Mark the date the day the interrogatories arrive, and work backward to leave time for gathering information, drafting, review, and signing.
If 30 days won’t be enough, you have two options. The easier one is a stipulated extension: the parties agree in writing to a new deadline. In most cases the court doesn’t need to approve it, unless the extension would interfere with other case deadlines like a discovery cutoff or trial date.4Legal Information Institute. Federal Rules of Civil Procedure Rule 29 If the other side refuses, you can file a motion asking the judge for more time. Either way, ask before the original deadline runs. Requesting an extension after you’ve already missed the date is a much weaker position.
Serving Responses and Keeping Proof
Once the answers are signed and verified, serve them on the opposing party using the method your court’s rules allow. In federal court that usually means the court’s electronic filing system, mail, or personal delivery. Many courts require electronic service for represented parties, so check local rules.
Keep a complete copy of everything you submit along with proof of service, whether that’s a certificate of service, a delivery receipt, or an electronic filing confirmation. If a dispute arises about whether you responded on time, that’s your evidence.
You Have to Update Your Answers Later
Serving your responses doesn’t end the obligation. If you later learn an answer was incomplete or incorrect, you have to supplement or correct it in a timely manner, and that duty continues through trial.2Legal Information Institute. Federal Rules of Civil Procedure Rule 26 Finding a new document six months later that responds to a question you already answered means updating that answer.
The exception is narrow: no formal supplement is required if the additional information has already been made known to the other parties through discovery or in writing. Something mentioned in passing at a deposition probably won’t meet that standard. When in doubt, supplement. Failing to do so can result in the court excluding the undisclosed information at trial.
What Happens If You Don’t Respond
If you don’t respond, the other side’s first move is usually a motion to compel. Before filing it, they must certify that they tried to resolve the issue with you directly.5Legal Information Institute. Federal Rules of Civil Procedure Rule 37 If the court grants the motion and you still don’t comply, sanctions escalate fast.
A court can impose any of the following for disobeying a discovery order:
- Treating disputed facts as established in favor of the other side.
- Barring you from introducing certain evidence or supporting particular claims or defenses.
- Striking part or all of your pleadings.
- Dismissing your case or entering default judgment for the other side.
- Holding you in contempt of court, which can carry fines or jail time.
- Ordering you and your attorney to pay the other side’s reasonable expenses, including attorney’s fees, caused by the failure.
Courts treat evasive or incomplete answers as a failure to respond.5Legal Information Institute. Federal Rules of Civil Procedure Rule 37 Half-answers and deliberately vague responses won’t protect you from a motion to compel. Substantive compliance is the standard, not technical compliance that hides the ball.