Government & courts
Can you serve someone by certified mail?
Updated · By the SendMyLettersOnline team
It depends on what you are serving. A summons that starts a lawsuit can be served by certified mail only where the court's rules allow it, and in many places the mailing must be done by the clerk or a non-party, not by you. Later papers in a case (motions, briefs) can usually be served on the other side by mail; in federal court, Rule 5(b)(2)(C) says mail service is complete upon mailing.
| What is being served | Federal court rule | By certified mail? |
|---|---|---|
| Summons and complaint (starting a case) | FRCP 4: personal delivery, or any method allowed by state law; a request to waive service may be sent by mail | Only if the applicable state rule allows it; check the court's self-help page |
| Later papers to a party already in the case | FRCP 5(b)(2)(C): mailing to the last known address; complete upon mailing | Allowed as mail; certified adds proof |
| Notices required by a lease, contract or statute | Set by that document or law | Often specified as certified mail, return receipt requested |
Starting a case: summons rules
Federal Rule of Civil Procedure 4 says a summons may be served by any person who is at least 18 and not a party, and lets federal plaintiffs use the service methods of the state where the court sits or where service is made. Rule 4(d) also lets you mail a request asking the defendant to waive formal service.
States differ widely. Some allow certified mail with a return receipt for certain cases, often sent by the court clerk; others require personal delivery. The court's self-help center or clerk can tell you which methods are allowed. This is general information, not legal advice.
Serving later papers by mail
- Under Rule 5(b)(2)(C), mailing to the person's last known address completes service on the day you mail it.
- Federal Rule 6(d) adds 3 days to response deadlines when service is made by mail.
- You usually file a certificate of service stating when and how you mailed the papers, so keep your mailing receipt.
Quick answers
How to serve someone by certified mail?
First confirm your court allows it for the paper you're serving. If it does, follow its procedure exactly (who mails it, restricted delivery, return receipt) and file the proof with the court.
Can I mail the summons myself?
Often not: many rules require service by a non-party or by the clerk. Check your court's rules.
How do I prove I mailed a document to the court or the other side?
Keep the Certified Mail receipt, tracking history and return receipt, and file a certificate or proof of service if your court requires one.
What to do next
For papers you're allowed to serve by mail, upload your PDF and we send it by Certified Mail with an electronic return receipt.
Send by certified mailSources
- Federal Rules of Civil Procedure, Rule 4 (Cornell LII)
- Federal Rules of Civil Procedure, Rule 5 (Cornell LII)
- Federal Rules of Civil Procedure, Rule 6 (Cornell LII)
Checked: . General information, not legal advice. Fees and rules change: confirm current values at the official links above.