You can buy certified mail online in a few minutes through a USPS-approved third-party platform like Stamps.com, Simple Certified Mail, or Pirate Ship. You enter the recipient’s address, choose whether to add a return receipt, pay the $5.30 certified mail fee plus regular postage, and print the label on a home printer.1Stamps.com. Send and Track USPS Certified Mail The envelope then goes into any blue collection box, your home mailbox, or the post office counter, and you get the same chain-of-custody record you would get filling out forms in person.
Where to Buy the Label
Certified mail labels are sold online through third-party shipping platforms that connect directly to USPS systems. Stamps.com lets you type in the recipient’s address, select Certified Mail as the service, add a return receipt if you want one, and print the label immediately.1Stamps.com. Send and Track USPS Certified Mail Simple Certified Mail and Pirate Ship offer similar workflows. Tracking numbers, postage, and delivery records all flow through the postal network regardless of which vendor you use.
One thing that catches people out: USPS’s own Click-N-Ship tool does not sell certified mail. Click-N-Ship is built for package services like Priority Mail and USPS Ground Advantage.2United States Postal Service. Online Shipping with Click-N-Ship To handle certified mail entirely online, you need one of the approved third-party vendors. The alternative is the post office counter.
Every platform asks you to create an account and store a payment method. Some tack on a small per-piece transaction fee; others fold it into the postage price. A few will ship you free certified mail window envelopes, which saves a trip to the office supply store.
What It Costs in 2026
Certified mail pricing stacks. The base fee buys the certified service itself, which produces a mailing receipt and tracking. Everything past that is optional and priced separately.
- Certified Mail fee: $5.30 per piece, on top of the postage the item needs based on weight and class.3United States Postal Service. Notice 123 – Price List
- Electronic Return Receipt: $2.82, which delivers an electronic image of the recipient’s signature.3United States Postal Service. Notice 123 – Price List
- Physical Return Receipt (the green card): $4.40 for a hard-copy PS Form 3811 mailed back with an ink signature.3United States Postal Service. Notice 123 – Price List
- Certified Mail Restricted Delivery: $13.70, which limits delivery to the person you name on the envelope or that person’s authorized agent.3United States Postal Service. Notice 123 – Price List
A typical certified letter with electronic return receipt runs roughly $6 to $9 total once First-Class postage is added.
What to Gather Before You Start
The information you type into the platform populates PS Form 3800, the certified mail receipt. Have the recipient’s full name, complete street address with any apartment or suite number, and ZIP+4 code. Have your own return address ready as well so the piece can come back if it proves undeliverable.4United States Postal Service. PS Form 3800 – Certified Mail Receipt
Weigh the mailpiece before you order postage. A kitchen scale is fine. A single-page letter in a standard envelope usually stays under one ounce, but a few extra sheets can push it into a higher postage bracket. Underpaying gets the piece returned for insufficient postage, which wastes the fee and the time.
You also need a working inkjet or laser printer. The platform formats the barcode, postage, and certified markings onto one printable label or cover sheet. Run a test print first. A smudged or distorted barcode can block USPS scanners from reading it, which breaks your tracking record.
Printing and Mailing the Envelope
Attach the printed label firmly to the front of the envelope and keep any tape clear of the barcode. Your certified mail tracking number is 22 digits and usually starts with 9407.5United States Postal Service. USPS Tracking That number is your proof of mailing and the key to every scan that follows.
Getting the letter into the mail stream is simple. Drop it in any blue USPS collection box, leave it in your home mailbox for the letter carrier, or take it to the post office counter.6United States Postal Service. Sending and Receiving Mail Some online vendors also let you schedule a free carrier pickup.1Stamps.com. Send and Track USPS Certified Mail If a legal deadline is tight and you need an immediate acceptance scan on the record, the counter is the safest option because the clerk scans the piece while you watch.
Tracking and Proof of Delivery
Track the piece on USPS.com by entering the 22-digit number, or use the vendor dashboard where you bought the label. Each scan shows the date, time, and location, from acceptance through delivery.
If you paid for an electronic return receipt, the system generates a delivery record that includes the recipient’s signature image once the piece is delivered. That digital record carries the same weight as the paper green card for most purposes and is easier to file and retrieve. USPS keeps certified mail tracking information for about two years, so download or print the delivery confirmation promptly rather than treating the USPS website as long-term storage.
If Nobody Signs for the Letter
When the carrier arrives and no one is available to sign, USPS leaves a notice and holds the piece at the local post office for 15 calendar days. The recipient can collect it during that window. If the 15 days lapse or the recipient refuses the letter outright, USPS returns it to your address with a notation showing what happened.
A returned certified letter still creates a record. USPS logs the delivery attempt, the hold period, and either the refusal or the unclaimed status. In many legal contexts a documented attempt satisfies the sender’s obligation to give notice, particularly where the recipient refused it. Whether an unclaimed letter counts as valid service depends on the rules of the court or agency involved, so confirm before you rely on it.
Two Limits Worth Knowing
Certified mail proves the piece was sent and whether it was delivered. It does not insure the contents. USPS states that no insurance coverage attaches to certified mail unless you send it via Priority Mail, which has its own built-in insurance.7United States Postal Service. 500 Additional Mailing Services For anything with monetary value, add insurance as a separate extra service when you buy the label.
Certified mail is also domestic only. It is available for items mailed within the United States, including APO/FPO military addresses and U.S. territories. For a similar chain-of-custody record on international mail, the closest USPS equivalent is Registered Mail, which reaches most countries and offers optional insurance, with return receipt available to some destinations.
Sending Certified Mail in Bulk
If you regularly send certified letters, several online vendors offer batch processing. You upload a spreadsheet of recipient addresses, and the platform generates a label for every row in one print queue. You can usually set envelope size, weight, and add-on services per batch. These services typically charge a per-piece transaction fee, though some require a prefunded account balance. A single dashboard then shows delivery status for every piece.
Why the Return Receipt Matters
Certified mail commonly carries demand letters, lease termination notices, insurance claims, contract cancellations, and IRS correspondence. The rule to remember is straightforward: the certified mail fee alone proves you sent it, and the return receipt proves someone received it. Those are two different legal facts, and if a statute, contract, or court rule tells you to send something by certified mail, you usually need both. Add the return receipt when you buy the label rather than trying to prove delivery later without one.