The short answer
At a Post Office, Certified Mail costs the postage plus a $5.55 Certified Mail fee (USPS prices effective July 12, 2026). For a stamped letter up to 1 ounce that is $6.37. Adding an electronic Return Receipt ($2.91) brings it to $9.28, and a hardcopy green-card Return Receipt ($4.65) brings it to $11.02. Through IRIS, a one-page black-and-white Certified letter costs $10.15 including printing and First-Class postage, or $13.06 with the electronic Return Receipt option.
USPS Certified Mail fees effective July 12, 2026
Certified Mail is not a type of postage. It is an extra service that USPS adds to a First-Class Mail or Priority Mail piece, so the price always has two parts: the postage for the mail class and weight, plus the Certified Mail fee. Return Receipt and Restricted Delivery are further options layered on top.
The figures below come from USPS Notice 123 and the USPS extra services page for prices effective July 12, 2026. USPS changes prices from time to time, so check Notice 123 again before you budget a large mailing.
| Item | Price | What it covers |
|---|---|---|
| First-Class Mail letter, stamped, up to 1 oz | $0.82 | Postage. Up to 2 oz is $1.11, 3 oz is $1.40, and 3.5 oz is $1.69. |
| First-Class Mail letter, metered, up to 1 oz | $0.78 | Postage for mailers who use a postage meter or PC Postage. |
| Certified Mail | $5.55 | Mailing receipt and delivery or attempted-delivery information, added to postage. |
| Return Receipt, electronic | $2.91 | Delivery record with the recipient’s signature, sent by email. |
| Return Receipt, hardcopy (PS Form 3811) | $4.65 | The same record on the green card mailed back to you. |
| Certified Mail Restricted Delivery | $14.35 | Certified Mail delivered only to the named addressee or an authorized agent. Paid instead of the $5.55 fee, not on top of it. |
| Certified Mail Adult Signature Required | $14.35 | Delivery only to someone 21 or older. USPS says this option is not sold at retail counters. |
Certified Mail vs. Certified Mail with Return Receipt
Certified Mail alone gives you a mailing receipt and tracking, and USPS keeps the delivery record, including the signature. Adding a Return Receipt sends that delivery record to you: either the hardcopy PS Form 3811 green card mailed back, or an electronic version sent by email.
A Return Receipt can’t be bought by itself; USPS sells it only with another extra service such as Certified Mail. At USPS retail prices effective July 12, 2026, Certified Mail is $5.55 plus postage, an electronic Return Receipt adds $2.91, and a hardcopy Return Receipt adds $4.65. The worked totals below show what each combination costs for a 1-ounce letter.
Certified Mail alone fits when tracking and a record of mailing are enough. Adding a Return Receipt makes sense when you want the signature record in your own files, for example because a contract, notice rule, or agency asks for one. Choose the hardcopy card only if someone specifically wants the physical card; otherwise the electronic version costs less. IRIS offers the electronic Return Receipt for $2.91, only with its $6.95 Certified Mail option, and does not offer the hardcopy green card.
| What you get | Certified Mail only | With electronic Return Receipt | With hardcopy Return Receipt (PS Form 3811) |
|---|---|---|---|
| USPS fee on top of postage | $5.55 | $5.55 + $2.91 | $5.55 + $4.65 |
| Mailing receipt and tracking | Yes | Yes | Yes |
| Signature record sent to you | No | Yes, by email | Yes, green card by mail |
| 1-ounce stamped letter total | $6.37 | $9.28 | $11.02 |
What a certified letter costs, worked out
Most people asking how much Certified Mail costs are sending one ordinary letter. These totals use the stamped retail price for a First-Class letter up to 1 ounce, which is what you pay at a Post Office counter. They do not include your envelope, paper, printing, or the trip to the counter. The hardcopy green card’s weight is not counted when USPS calculates postage, and any Return Receipt requires a complete return address on the envelope.
A Return Receipt can only be bought together with another extra service such as Certified Mail, so there is no line for a Return Receipt on its own. A heavier letter adds 29 cents per weight step: $1.11 up to 2 ounces, $1.40 up to 3 ounces, and $1.69 up to 3.5 ounces. A square, rigid, or lumpy letter, such as one with a clasp or a key inside, adds a $0.49 nonmachinable surcharge, and an envelope too big or thick to count as a letter is priced as a large envelope, from $1.69.
| What you buy | Calculation | Total |
|---|---|---|
| Certified Mail only | $0.82 + $5.55 | $6.37 |
| Certified Mail with electronic Return Receipt | $0.82 + $5.55 + $2.91 | $9.28 |
| Certified Mail with hardcopy Return Receipt | $0.82 + $5.55 + $4.65 | $11.02 |
| Certified Mail Restricted Delivery | $0.82 + $14.35 | $15.17 |
| Certified Mail Restricted Delivery with electronic Return Receipt | $0.82 + $14.35 + $2.91 | $18.08 |
| Certified Mail Restricted Delivery with hardcopy Return Receipt | $0.82 + $14.35 + $4.65 | $19.82 |
What Certified Mail costs through IRIS
IRIS prints your PDF letter and mails it for you, so its price includes work that the USPS fees above do not: printing, handling, and First-Class postage. A letter costs a $3.00 base service and postage fee plus $0.20 per black-and-white page or $0.40 per color page. Certified Mail adds $6.95, and the electronic Return Receipt option adds $2.91 when selected with Certified Mail.
That makes IRIS more expensive than buying the fees at a counter if you already have a printer, an envelope, and time to go to the Post Office. What you pay for is skipping those steps. Know the limits before you order: Certified letters are limited to six sheets (six single-sided or 12 double-sided pages), IRIS mails only to US addresses, and it does not offer Restricted Delivery or the hardcopy green card. Your private order page shows the tracking number and provider-reported events when they arrive. It is not a postmarked USPS receipt, and selecting the electronic Return Receipt does not put a signature record on the order page. If you need either of those documents in hand, mail the letter at a Post Office counter.
| IRIS order | Price |
|---|---|
| One-page black-and-white letter, First-Class postage included | $3.20 |
| Certified Mail add-on | +$6.95 |
| Electronic Return Receipt add-on (requires Certified Mail) | +$2.91 |
| One-page black-and-white Certified letter | $10.15 |
| One-page black-and-white Certified letter with electronic Return Receipt | $13.06 |
| Each additional page | +$0.20 black-and-white or +$0.40 color |
Does USPS Certified Mail require a signature?
Yes. USPS describes Certified Mail as requiring a signature from the addressee, and the Domestic Mail Manual says the piece may not be handed over until the recipient signs and prints their name. USPS may also ask the recipient for ID. Unless you pay for Restricted Delivery, the rules allow delivery to someone other than the named addressee in some situations, such as a person who usually accepts mail at that location.
If nobody is available, the carrier leaves a notice. USPS holds Certified Mail for 15 days and returns it to the sender on the 16th day if no one picks it up or arranges redelivery. USPS keeps a delivery record that includes the signature; to get a copy yourself, buy a Return Receipt when you mail the letter. Restricted Delivery narrows who may sign to the named person or their authorized agent.
Is Certified Mail worth the extra cost?
It is worth paying for when you need a record that you sent a specific piece and information about whether it was delivered: a notice where the sender may later need to show when it went out, a dispute letter, or a document a landlord, agency, or contract tells you to send by Certified Mail. If the letter is routine and nobody will ask for proof, an ordinary stamp does the job for a fraction of the price.
Before you pay, be clear about what the fee does not buy:
- Speed. Certified Mail travels at the speed of the mail class it is added to, so a certified First-Class letter is no faster than an ordinary one.
- Insurance. Certified Mail has no insurance of its own. Priority Mail’s included insurance still applies if you add Certified Mail to a Priority piece.
- Proof of contents. The receipt and delivery record show that a numbered piece was mailed and delivered, not what was inside the envelope. Keep a copy of what you sent.
- A guaranteed refund. USPS may refund the Certified fee, not the postage, in limited cases such as non-delivery caused by USPS, but not when delivery was attempted and the piece went unclaimed.
Certified Mail vs. Priority Mail, and USPS vs. UPS
Priority Mail and Certified Mail answer different questions, so one is not simply better than the other. Priority Mail is a mail class: it sets how fast the piece is handled and includes tracking and up to $100 of insurance. Certified Mail is an extra service that adds a mailing receipt and a signature-based delivery record. USPS lets you add Certified Mail to either First-Class Mail or Priority Mail, so if you need both speed and a Certified record you can buy both. For the comparison most people actually face, Certified Mail against an ordinary First-Class letter, see the IRIS guide below.
Certified Mail is a USPS extra service, so UPS and other private carriers do not sell it. They offer their own delivery-signature options with their own prices and terms. If a rule, form, or contract names Certified Mail specifically, check whether a private carrier’s signature service would satisfy it before you substitute one.
Ways to keep the cost down
A few choices make a real difference to the total for one letter:
- Choose the electronic Return Receipt ($2.91) over the hardcopy green card ($4.65) unless you specifically need the physical card. That saves $1.74.
- Add Restricted Delivery only when a specific named person must sign. It raises the Certified fee from $5.55 to $14.35.
- Keep the letter at 1 ounce or less if you can, and fold it to fit a standard letter envelope so it is not charged as a large envelope.
- If you only need evidence that you mailed something, not delivery information, a Certificate of Mailing is $2.45 at a Post Office counter.
- Mail Certified once. If tracking stalls, check the existing piece before paying for a second one.
Sources & further reading
Product details checked against the IRIS API contract when this article was published. Platform references can change; consult the linked documentation when implementing.
- USPS Notice 123 price list, effective July 12, 2026 (PDF)
- USPS, Insurance and extra services
- USPS FAQ, Certified Mail: the basics
- USPS Domestic Mail Manual 503, Extra Services
- USPS Domestic Mail Manual 508, Recipient Services
Published by IRIS Postal Forms, operated by Great Lakes Computing Office LLC. Send a correction.