What Is Service of Process? A Plain-English Guide

If you are starting a lawsuit, or someone has started one against you, you will hear the phrase "service of process." It sounds technical, but the idea is simple.

Service of process is the formal way of telling someone that a legal case involves them. It means delivering court papers to that person in a way the law accepts, so the court can be sure they were actually told.

What does "service of process" mean?

"Process" is the set of court papers that starts a case or requires someone to act. In a typical civil lawsuit, that is a summons and a complaint.

• The summons tells the person they are being sued, which court the case is in, and how long they have to respond.
• The complaint explains what the other side claims and what they are asking the court to do.

"Service" is the delivery. When papers are properly delivered, the person has been "served."

Other papers can be served too, such as subpoenas (orders to appear or hand over documents), divorce and custody papers, eviction notices, and some court orders. The exact rules depend on the type of paper and the court.

Why do courts require service of process?

The short answer is fairness. In the United States, the Constitution says the government cannot take away a person's life, liberty or property without "due process of law." One basic part of due process is notice. You cannot defend yourself in a case you do not know about.

Service of process does three jobs:

1. It gives notice. The person learns there is a case, what it is about, and what they need to do.
2. It gives the court authority. In most cases, a court cannot make binding orders against someone until that person has been properly served.
3. It creates a record. The server signs a document, often called a proof of service or affidavit of service, saying who was served, when, where and how. That record goes into the court file.

If service is done wrong, the case can be delayed. In some situations a judgment can later be challenged or thrown out because the person was never properly served. That is why the rules are taken seriously.

How is service of process usually done?

The most common method is personal service. Someone hands the papers directly to the person named in them. The person does not have to take the papers, sign anything or agree to anything for service to count in many places. A server can often leave the papers near a person who refuses to take them, as long as the person is told what they are.

Depending on the court and state, other methods may be allowed, such as:

• Leaving papers at the person's home with another adult who lives there.
• Serving an agent. Companies usually have a registered agent whose job is to accept legal papers for the business.
• Mail or a signed waiver. In federal court, a plaintiff can ask the defendant to waive formal service, and the defendant is expected to avoid unnecessary costs of service.
• Court-approved alternatives. If normal methods fail, a court may allow another method, such as publication in a newspaper or, in some courts, electronic delivery. This usually requires asking the judge first.

Each state sets its own rules for its own courts, and federal courts follow the Federal Rules of Civil Procedure. Always check the rules for the court where the case is filed.

Who is allowed to serve court papers?

This varies a lot by state. Common options include:

• A sheriff or deputy, or a constable in states that have them.
• A private process server. Some states require these servers to be licensed, registered or certified. Others allow any adult who is not part of the case.
• Any adult who is not a party. In federal court, any person who is at least 18 and not a party to the case may serve a summons and complaint.

In many places, the person who filed the case cannot serve the papers themselves. A friend or relative may be allowed in some courts, but a professional is often the safer choice because they know how to complete and file the proof of service correctly.

Is there a deadline to serve papers?

Usually, yes. Courts set a time limit for serving the defendant after a case is filed. In federal court, the general limit is 90 days after the complaint is filed, though a judge can extend it for good cause. State courts have their own limits. If the deadline passes without service, the court may dismiss the case or order service by a new date.

There is also a deadline for the person who was served to respond. That is a separate clock, and it is covered in our guide on what to do if you have been served.

What happens after papers are served?

The server fills out and signs a proof of service. Depending on the court, it may need to be notarized or sworn. The person who requested service (or their lawyer) usually files it with the court.

From there, the case moves forward. The served person has a set time to respond, and the court has a record showing that they were told.

Frequently asked questions

Can someone avoid being served by refusing to open the door? Avoiding service usually only delays a case. Servers can try other times and places, and courts can approve other methods when someone is avoiding service. Ignoring a case does not make it go away.

Does being served mean I did something wrong? No. It only means someone has started a legal process that involves you. You may have a strong defense, or the papers may only ask you to appear as a witness.

Can papers be served on weekends or holidays? Rules vary by state. Many states allow service on most days, but some have limits, such as on Sundays. Check the rules for the court involved.

Is email service allowed? Sometimes, but usually only with court permission or when the rules specifically allow it. Do not assume an email counts as formal service.

This is general information, not legal advice.