A process server is the person who officially delivers legal documents to someone involved in a lawsuit

When a court case begins, someone has to hand the defendant a copy of the lawsuit and tell them they're being sued. That someone is a process server. They're not a lawyer, a police officer, or a court employee — they're a private person (or sometimes work for a company) hired specifically to locate someone and deliver legal papers in a way that proves it happened. The court needs that proof because a defendant has a right to know they're being sued before the case moves forward.

Process servers exist because people don't always cooperate. A defendant might ignore a letter, refuse to answer the door, or move without leaving a forwarding address. A process server's job is to find them anyway and hand them the documents in person — or leave them in a legally acceptable way if the person keeps dodging. Once the server completes the job, they file a sworn statement with the court saying exactly when, where, and how the papers were delivered. That statement is called a affidavit of service, and without it, the case can't proceed.

Key Takeaways

  • A process server locates a defendant and delivers court documents in person, then files proof with the court that the delivery happened.
  • Process servers are hired by the person suing (the plaintiff) or their lawyer, not by the court.
  • If someone can't be found at home or work, a process server may leave documents at an alternative location, but the method must follow state law.
  • The cost of hiring a process server varies by location and difficulty, but typically ranges from $50 to $300 per attempt.
  • If a process server can't locate someone after multiple attempts, the court may allow service by mail, newspaper, or social media, depending on the case type.

Who hires a process server and why

The plaintiff — the person filing the lawsuit — or their lawyer hires the process server. They pay the fee upfront. The court doesn't assign a process server or pay for one; it's the plaintiff's responsibility to make sure the defendant gets notice of the case. This is a constitutional requirement: you can't be sued without knowing about it.

A process server becomes necessary when informal methods don't work. If the defendant won't take a certified letter, ignores emails, or has moved, a process server can track them down. They use public records, databases, interviews with neighbors or coworkers, and sometimes surveillance to locate the person. Once they find them, they hand over the documents and get a signature or witness confirmation that the person received them.

How process servers deliver documents

The most straightforward method is personal service: the server finds the defendant in person and hands them the papers directly. This might happen at their home, workplace, or anywhere else the server locates them. The defendant doesn't have to accept the papers willingly — the server can leave them at the person's feet if necessary, as long as they're within arm's reach and the defendant knows what's happening.

If personal service proves impossible after multiple attempts, state law allows alternatives. Substitute service means leaving the papers with someone else at the defendant's home or workplace — often a family member, roommate, or coworker — and then mailing a copy to the defendant's address. Nail and mailposting) means taping the documents to the defendant's door and mailing a copy. Some states allow service by email or social media if the defendant has been avoiding personal service and the court approves it. Each state has different rules about which methods are acceptable and under what circumstances.

What process servers can and cannot do

Process servers can locate people using public records and databases, interview neighbors or coworkers, and observe someone's movements in public spaces. They can show up at someone's home or workplace during reasonable hours. They cannot trespass on private property, lie about their identity, use force, or threaten anyone. They cannot impersonate police officers or court officials. They cannot enter a home without permission, and they cannot serve documents on someone inside a courthouse, hospital, or other protected location without following specific rules.

If a process server breaks these rules — for example, by lying about who they are or entering a home without consent — the service may be ruled invalid by the court, and the case could be delayed or dismissed. This is why hiring a licensed, reputable process server matters. Many states require process servers to be licensed or bonded, meaning they've passed a background check and have insurance to cover mistakes.

Cost and timeline for process service

The cost of hiring a process server depends on location, the difficulty of locating the defendant, and how many attempts are needed. A straightforward service at someone's home or workplace might cost $50 to $150. If the defendant is hard to locate or keeps avoiding service, costs can climb to $300 or more. Some process servers charge per attempt, while others charge a flat fee for the job. Rush service (same-day or next-day delivery) usually costs extra.

Timeline varies widely. If the defendant is straightforward to locate and home during business hours, service can happen within a few days. If the person is avoiding service or has moved, it can take weeks or months of attempts before the server locates them — or before the plaintiff decides to pursue alternative service methods. The plaintiff's lawyer can usually estimate the timeline based on what they know about the defendant's location and habits.

What happens if someone can't be found

If a process server makes multiple attempts and cannot locate the defendant, the plaintiff's lawyer can ask the court for permission to use alternative service. This might mean serving documents by certified mail, publishing a notice in a newspaper, sending papers by email, or posting on social media — depending on the case type and what the court approves. The court will only allow this if the plaintiff can show they made a genuine effort to find the defendant through personal service first.

In some cases, if the defendant is truly impossible to locate, the court may allow the case to proceed without service, though this is rare and usually only happens in specific situations like debt collection or property disputes. The defendant still has the right to show up and defend themselves if they later learn about the case, but the plaintiff can move forward without waiting indefinitely.

The affidavit of service and court records

Once the process server completes their job, they file an affidavit of service with the court. This is a sworn statement that describes exactly when, where, and how the documents were delivered, and to whom. It includes the server's signature and sometimes a photo or witness confirmation. The court uses this document to verify that the defendant received proper notice of the lawsuit.

If the defendant later claims they were never served, the affidavit of service is the evidence that proves otherwise. This is why the server's details matter — vague or incomplete affidavits can be challenged, and the court may require the server to testify about what happened. A well-documented affidavit protects both the plaintiff and the court's ability to proceed with the case.

Frequently Asked Questions

Can a process server serve documents at someone's workplace?

Yes, workplace service is common and legal. The server can hand papers to the defendant at their job during business hours. If the defendant refuses or isn't available, the server may leave the papers with a coworker or supervisor, depending on state law. Some states require the server to mail a copy afterward.

What if someone refuses to take the papers from a process server?

The defendant doesn't have to accept the papers willingly. The server can leave them within the defendant's reach — on a table, at their feet, or on their doorstep — and that counts as valid service. The key is that the defendant knows what's happening and has the opportunity to take the papers.

Do I need a lawyer to hire a process server?

No. You can hire a process server directly if you're representing yourself in a lawsuit. However, your lawyer (if you have one) usually handles this for you and bills it as part of your case costs. You can find process servers through online directories, your local bar association, or by searching "process server" in your area.

How much does a process server cost?

Costs vary by location and difficulty. straightforward service typically costs $50 to $150 per attempt. If the defendant is hard to locate, costs can reach $300 or more. Ask for a quote before hiring, and clarify whether the fee covers one attempt or multiple tries.

What if the process server makes a mistake on the affidavit of service?

Minor errors (like a wrong address or time) may not invalidate service if the defendant clearly received the papers. Major errors — like serving the wrong person or lying about how service happened — can make the service invalid, and the case may be delayed while the plaintiff arranges proper service.