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How To Send Certified Mail

By Simpl Fulfillment team
October 23, 2026

Certified Mail proves you mailed something and shows whether it was delivered. It does not get you the recipient's signature. That takes Return Receipt, an add-on that costs $4.65 by mail or $2.91 by email on top of the $5.55 Certified Mail fee and postage. If all you need is proof of the date you mailed it, a $2.45 Certificate of Mailing is cheaper, and it is a different service.

Use Certified Mail for anything you may later need to prove you sent: court papers, contracts, tax notices, insurance claims, demand letters. You buy it at the Post Office counter, leave with a receipt that records the date USPS accepted the item, and follow delivery online with the number on that receipt.

What each proof covers

Three USPS services sound alike and prove different things.

Certified Mail on its own gives you a mailing receipt with the date USPS accepted the item, and a delivery record you can pull up with the number on that receipt, showing when it was delivered or when a carrier tried. No signature comes back to you.

Certified Mail with Return Receipt adds the signature. USPS mails you a hardcopy delivery record or emails you an electronic one showing who signed, for $4.65 by mail or $2.91 by email. If the other party could later argue they never got it, buy this combination.

Certificate of Mailing is not Certified Mail. For $2.45 it records the date you handed the item to USPS and nothing about delivery. It is sold only at the Post Office, only when you mail the item, on PS Form 3817 or 3877, and USPS keeps no copy, so keep yours.

Two more options come up at the counter. Certified Mail Restricted Delivery, $14.35, means only the addressee or someone they authorize can sign for and receive the item. Signature Confirmation is sold as its own service, $5.15 at a Post Office or $4.15 online, and gets a signature at delivery.

What USPS charges

Every fee below is per item and added to postage. The fees come from the USPS extra services page. Postage depends on the mail class you pick, and current postage is in USPS Notice 123, the USPS price list.

Service

Fee

What it gives you

Certified Mail

$5.55

Mailing receipt plus a record of delivery or attempted delivery

Return Receipt (PS Form 3811)

$4.65 by mail, $2.91 by email

The recipient's signature. Add it to Certified Mail.

Certified Mail Restricted Delivery

$14.35

Only the addressee or the person they authorize can sign for and receive it

Certificate of Mailing (PS Form 3817 or 3877)

$2.45

Proof of the date you mailed it. Nothing about delivery.

Signature Confirmation

$5.15 at a Post Office, $4.15 online

A signature at delivery, sold as its own service

USPS Tracking

No charge

Date and time of delivery or attempted delivery

How to send Certified Mail at the Post Office

  1. Address the envelope or package, check the address, and make sure the contents are allowed in the mail. The address you write on the Certified Mail form has to match the one on the item.
  2. Ask for Certified Mail at the counter and fill in the sender and recipient sections of the form. If you need the recipient's signature, ask for Return Receipt at the same time. If only the addressee may sign, ask for Restricted Delivery.
  3. Put the barcode on the item and hand it to the clerk. You only get a postmarked receipt when a Postal employee takes the item from you, so ask for the postmark if you want one.
  4. Pay the postage plus the $5.55 Certified Mail fee and any add-ons.
  5. Keep the receipt. The number on it is your tracking number. Enter it on usps.com to see the delivery record; USPS Tracking has no charge. The recipient may be asked to show an acceptable primary ID before USPS hands the item over.

Sources: USPS insurance and extra services for every fee and service rule on this page, and USPS Notice 123 for postage.

Updated October 2026.

Related: Compare USPS Priority Mail to Priority Mail Express

Recommended: Everything to Know About Poly Mailers

Frequently Asked Questions

What is certified mail?

Certified Mail is a USPS extra service for important documents. It gives you a mailing receipt and a delivery record showing when the item was delivered or a delivery attempt was made. You follow it with USPS Tracking, a separate no-charge service, using the number on your receipt.

What kind of mail can you send by certified mail?

Use it for legal papers, contracts, tax notices, insurance claims, and any letter or package where you may need evidence that it arrived.

How much does certified mail cost?

USPS charges $5.55 for Certified Mail, on top of postage. Add-ons cost more: Return Receipt is $4.65 by mail or $2.91 by email, and Certified Mail Restricted Delivery is $14.35. All of these are listed on the USPS extra services page.

What is the process for sending certified mail?

Take the item to a Post Office, ask for Certified Mail, fill out the form, put the barcode on the item, pay postage plus the $5.55 fee and any add-ons, and keep the receipt. The number on the receipt lets you follow delivery on usps.com.

How do you track a certified mail package?

The tracking number is on the receipt you get at the counter. Enter it on usps.com to see when the item was delivered or when a delivery attempt was made. USPS Tracking has no charge.

What proof of delivery does certified mail provide?

On its own, Certified Mail gives you a mailing receipt as proof you sent the item and a delivery record showing when it was delivered or a delivery attempt was made. It does not capture the recipient's signature. Add Return Receipt, $4.65 by mail or $2.91 by email, to get a delivery record with the signature.

Can you send Priority Mail as Certified Mail?

Yes. Certified Mail is an extra service, not a mail class, so you add it to a First-Class Mail or Priority Mail item at the counter and pay the $5.55 fee on top of that postage. Pick the mail class for the speed you want, then add Certified Mail for the mailing receipt and delivery record.

What mistakes cause problems with certified mail?

A mismatch between the address on the form and the address on the item, contents that are not allowed in the mail, and losing the receipt, which carries your tracking number and your proof of mailing. Decide at the counter whether you need Return Receipt or Restricted Delivery, so the right proof is attached from the start.