To send Certified Mail, fill out two free USPS forms (PS Form 3800 for your proof-of-mailing receipt and PS Form 3811 for the green Return Receipt card), attach them to your envelope, and take the piece to a post office retail counter so a clerk can weigh it, collect the fees, and postmark your receipt. That postmarked receipt, plus the signed green card that comes back in the mail, is the proof most people are paying for.
What You Need Before You Go
Pick up two forms at any post office counter, free of charge:
- PS Form 3800, the Certified Mail receipt. It has a pre-printed article number that serves as your tracking number, and it stays with you after mailing.
- PS Form 3811, the green Return Receipt card. It travels with your envelope, gets signed by whoever accepts delivery, and is mailed back to you.
You also need the recipient’s full name and complete address, your own return address, and enough cash or card to cover postage plus fees. For a one-ounce letter with a physical Return Receipt, budget around $10.48. Printing the label online with an electronic Return Receipt drops the total to roughly $8.86.
Filling Out the Forms
On PS Form 3800, write your complete return address and the recipient’s full name and address. Peel off the barcoded sticker and place it on the front of your envelope near the top, above the delivery address. Do not let the sticker cover the address itself.
On PS Form 3811, put your return address on the front (that is where USPS will mail the signed card back to you) and the recipient’s name and address on the back. Attach the green card to the back of the envelope using its adhesive strip.
Address the envelope the normal way: recipient centered, your return address in the upper-left corner.
Take It to the Counter, Not the Blue Box
Bring the prepared envelope to the retail counter at any post office. The clerk weighs it, calculates postage plus the Certified Mail fee (and any add-ons you request), and postmarks your portion of PS Form 3800. Keep that postmarked receipt somewhere safe. It is the single most important piece of paper in this process because it proves the date of mailing and holds your tracking number.
You cannot drop Certified Mail in a blue collection box and still get a postmarked receipt. The chain of documentation starts at the counter. Skip the counter and you skip the proof you paid for.
Fees
Certified Mail costs standard First-Class postage based on weight, plus a flat $5.30 Certified Mail fee. A Return Receipt is an optional add-on: $4.40 for the physical green card, or $2.82 for the electronic version that emails you a signature image instead of mailing back a card.1USPS Postal Explorer. Notice 123 – Price List
Restricted Delivery
If you need to make sure the named recipient signs personally, and not a spouse, roommate, or receptionist, ask for Restricted Delivery. USPS will then release the envelope only to the addressee or someone the addressee has authorized in writing.2USPS. Domestic Mail Manual S916 Restricted Delivery The total for Certified Mail with Restricted Delivery is $13.70.1USPS Postal Explorer. Notice 123 – Price List It is worth the extra fee on sensitive matters where you want to eliminate any argument that the wrong person accepted delivery.
Tracking Delivery and Getting Your Proof
Once the envelope is in USPS hands, enter the tracking number from your receipt on the USPS tracking page to see transit updates and the final delivery scan, including the date, time, and who signed.3USPS. USPS Tracking
If you paid for a physical Return Receipt, the signed green card usually arrives in your mailbox within a few weeks of delivery, showing the recipient’s printed name, signature, and delivery date. If you chose the electronic version, that same information plus a scanned signature comes to you by email. Either one is official proof of delivery.
Keeping Your Records
USPS keeps delivery and signature records on file at the delivering post office for two years after the mailing date. Records of attempted delivery are held up to ten years. After those windows close, USPS no longer has copies.
Your own copies never expire, so treat them accordingly. Hang on to the postmarked PS Form 3800 receipt, the signed green card or electronic receipt email, and any tracking printouts for as long as the underlying matter could resurface. For tax-related notices, that usually means at least seven years. For contract or real estate disputes, keep everything until the statute of limitations has clearly passed. Scan a digital backup while you are at it.
If the Recipient Refuses or No One Is Home
If nobody is available to sign, or the recipient refuses, USPS leaves a notice slip and holds the envelope at the local post office for about 15 days. If it goes unclaimed, the piece comes back to you marked “Unclaimed” or “Refused.”4USPS. Domestic Mail Manual F010 Basic Information
A returned envelope is not necessarily a failed notice. In many legal contexts, attempting proper delivery and having the recipient refuse or avoid it still counts in your favor. Courts regularly treat refusal of Certified Mail as evidence the recipient was dodging notice. Your postmarked receipt and the returned envelope with USPS markings together show you did everything right.
Even so, if delivery fails, consider sending a second copy to the same address by regular first-class mail. Some statutes and court rules specifically require that backup step, and it strengthens your position where it isn’t required.
When Certified Mail Is Not the Right Tool
A few situations call for something other than Certified Mail. If you are filing a lawsuit, the initial complaint and summons generally must be delivered to the defendant in person by a process server or sheriff’s deputy. Some states allow service by certified mail for certain case types, but the rules vary widely, and getting it wrong can derail the case.
Certified Mail also carries no insurance for the contents. If you are sending something with real monetary value, such as jewelry, cash, or negotiable instruments, Registered Mail is the better choice because it provides a locked chain of custody and insurance coverage up to $50,000. Certified Mail proves your document arrived; Registered Mail protects a valuable item along the way.