How Long After Being Served Do I Have to Respond?

In federal court, you have 21 days after being served with the summons and complaint to file a formal response.¹ State courts set their own deadlines, usually 20 to 30 days. The exact date is printed on your summons, and that date is the one that controls how long after being served you have to respond. Treat it as a hard wall. Missing it hands the other side a path to win without you ever being heard.

The Federal 21-Day Rule

Twenty-one days is the standard in federal court, counting from the date you were served.¹ That applies whether the papers were handed to you personally, left at your home with another adult who lives there, or delivered to an authorized agent.²

Two situations stretch that window:

If the plaintiff mailed you a request to waive formal service and you signed and returned it, you have 60 days from the date the request was sent. If the request went to an address outside the United States, you have 90 days. Agreeing to waive also saves you money. Refuse without good cause and the court will make you pay the cost of the process server plus the plaintiff’s attorney fees for collecting those costs.²
The federal government, its agencies, and federal employees sued in their official capacity get 60 days after the U.S. Attorney is served. If you’re an individual co-defendant in such a case, your 21 days still apply; the government’s longer clock doesn’t change yours.¹

State Court Deadlines Vary

Every state writes its own rules, so there is no single number for state court. Twenty days and 30 days are both common. The number on your summons is the one that counts, not what you read about a different state or hear from a friend who was sued elsewhere.

Specialized courts within a state often run shorter. Small claims cases sometimes require a response in 15 or 20 days. Family courts and landlord-tenant courts also keep their own calendars, and those tend to be tight because the cases are built to move. Read the name of the court on your summons carefully and look up that court’s procedural rules if the summons isn’t clear.

Counting the Days Correctly

Start the day after service. The day the papers were handed to you does not count. From there, count every calendar day, including Saturdays, Sundays, and holidays. If the last day falls on a weekend or legal holiday, the deadline rolls to the end of the next business day.³ Most states count the same way, but confirm it in your jurisdiction.

One wrinkle catches people out. If you were served by mail rather than in person, federal rules add three days to your period.³ Electronic service does not get those extra three days. Many state courts have their own version of this add-on; check the rules for the court on your summons.

When the Clock May Not Have Started

The deadline only runs from a valid act of service. Federal rules allow service on an individual by personal delivery, by leaving the papers at your home with someone of suitable age who lives there, by delivery to an authorized agent, or by following the service methods allowed in the state where the court sits.² If the plaintiff cut corners, say by leaving the papers with a neighbor who doesn’t live with you or by serving the wrong address, service may be defective and the clock may not have started at all.

This is more than a technicality. A default judgment entered without proper service must be set aside. You can challenge service by filing a motion to dismiss, but it is a defense you must raise in your first response or you lose it.¹ Even when you think service was bad, the safest move is to respond within the stated deadline and raise the service problem at the same time. Ignoring the suit and hoping the defect protects you is a gamble that rarely pays off.

If You Need More Time

The quickest route to more time is asking the other side to agree. A written stipulation signed by both parties, setting a new due date, is routinely honored by courts, and most attorneys will grant a first extension as a professional courtesy.

If opposing counsel refuses, you can file a motion asking the judge for more time. Explain why: you just retained an attorney who needs to review the file, you’ve been dealing with a medical issue, something concrete. File before your original deadline runs. Judges look much more kindly on a request made in time than one filed after you’re already in default.

There is also a strategic alternative to a full answer. Filing a motion to dismiss within the original response period, arguing lack of jurisdiction, improper venue, or failure to state a valid legal claim, pauses your obligation to answer the complaint. If the court denies the motion, you then have 14 days from notice of that ruling to file your answer.¹ That can buy weeks or months while the motion is pending. It isn’t a delay tactic. The motion has to raise a real legal argument, but when one is available, many defendants overlook it.

What a Timely Answer Has to Contain

Filing on time only helps if you file the right thing. An answer is not a letter to the judge telling your side of the story. It is a structured document that goes through the complaint allegation by allegation and responds to each one.⁴

For each allegation you have three choices: admit it, deny it, or state that you lack enough information to admit or deny (which counts as a denial). Any allegation you do not address is automatically treated as admitted, except for claims about the amount of damages.⁴ Skipping a paragraph because it looks unimportant can hand the plaintiff an admitted fact later.

Your answer must also list any affirmative defenses you plan to rely on, such as the statute of limitations, release, or payment. If you leave them out, you can waive them permanently.⁴ And if you have your own claims against the plaintiff arising from the same events, you generally must bring them as counterclaims in the answer. A compulsory counterclaim is barred if you don’t raise it.⁵

What Happens If You Miss the Deadline

Missing the response date triggers a two-step process, and the gap between the two steps is where any chance of recovery lives.

First is entry of default. The plaintiff shows the clerk, usually by a simple affidavit, that you were served and did not respond. The clerk notes your default on the record.⁶ You haven’t lost yet, but you’re on the edge.

Second is the default judgment itself. If the plaintiff is asking for a specific dollar amount that can be calculated from the complaint, the clerk can enter judgment without a hearing. For anything more complex, the plaintiff has to ask the judge, who may hold a hearing to set the amount.⁶ Either way, the court treats every allegation in the complaint as true.

A default judgment is fully enforceable. The plaintiff can garnish wages, levy bank accounts, or place a lien on your home or car. A lien can block you from selling or refinancing until the judgment is paid, and post-judgment interest keeps the balance growing.

Setting Aside a Default

If you’ve already missed the date, acting fast changes your odds.

When the clerk has entered default but no judgment has issued yet, the court can set it aside for “good cause.”⁶ That’s a relatively forgiving standard. You generally need to show a legitimate defense, that your delay wasn’t willful, and that letting you back in won’t unfairly harm the plaintiff. Judges want cases decided on the merits, so at this point many will give you another chance.

Once an actual default judgment has been entered, the bar rises. You file under a separate rule and have to show grounds like mistake, inadvertence, or excusable neglect. “I forgot” won’t clear it. “I was hospitalized” or “the papers were left with a roommate who never told me” might. For the common grounds, you have no more than one year from the date judgment was entered to file.⁷ Courts view long delays with suspicion regardless of reason.

If the judgment resulted from defective service, it must be set aside as a matter of law. You still have to bring the defect to the court’s attention through the appropriate motion, but a judgment issued without proper service is fundamentally flawed, and courts treat that seriously.

1
Cornell Law School. Federal Rules of Civil Procedure Rule 12
2
Cornell Law School. Federal Rules of Civil Procedure Rule 4
3
Cornell Law School. Federal Rules of Civil Procedure Rule 6
4
Cornell Law School. Federal Rules of Civil Procedure Rule 8
5
Cornell Law School. Federal Rules of Civil Procedure Rule 13
6
Cornell Law School. Federal Rules of Civil Procedure Rule 55
7
Cornell Law School. Federal Rules of Civil Procedure Rule 60