To send a registered letter through USPS, seal the envelope yourself, complete PS Form 3806 at the Post Office counter, hand the item to a clerk, and pay a base fee of $19.70 on top of First-Class postage. Registered mail travels under lock and key with a documented chain of custody at every transfer, which is why it’s the most secure domestic option USPS offers and why you cannot drop it in a mailbox.
Seal the Envelope Before You Go
Postal employees are not allowed to help you seal a registered mailpiece, so all preparation happens before you reach the counter. Any sign that the envelope was opened and resealed will get it rejected.
Seal all envelope flaps securely. Don’t cover the spots where flaps intersect with paper strips, wax seals, or cellulose tape, because the clerk needs to stamp a postmark impression there. For packages, use glue, mucilage, or plain paper or cloth tape. If you’re sending currency or securities, paper strips alone aren’t enough; seal the package first with glue or mucilage, then apply tape over it.
The underlying rule: any tape you use has to visibly damage the envelope or wrapper if someone tries to peel it off, and it has to absorb ink from a postmark stamp. Clear packing tape fails both tests. Plain paper tape or cloth tape are the safe choices.
Address It Correctly
Write or type the recipient’s full name and complete address, including any apartment or suite number, in the center of the envelope. Put your full name and return address in the upper left corner. Both addresses must be complete for registered mail to be accepted.1USPS: Domestic Mail Manual. S911 Registered Mail
Leave space above the delivery address on envelopes, or to the left of it on packages. That’s where the clerk will affix the barcoded red Label 200. You don’t provide the label yourself.
Fill Out PS Form 3806
PS Form 3806 (Registered Mail Receipt) is the paperwork that accompanies your item. You can complete it at the counter, or download and print it from usps.com beforehand to save time.2United States Postal Service. PS Form 3806 – Registered Mail Receipt The form asks for your name and full address, the recipient’s name and full address, and a declared value for the contents.
The declared value is the number that matters most. It sets your insurance ceiling, so don’t lowball it. If the item is lost or damaged, USPS will only reimburse up to the amount you declared. All entries must be in ballpoint pen or typed. The form also has checkboxes for optional services.
Decide Whether You Want Return Receipt or Restricted Delivery
Two add-ons get marked on PS Form 3806 at the time of mailing.
Return Receipt
A Return Receipt is a physical green card (PS Form 3811) signed by the recipient at delivery. USPS mails the signed card back to you, giving you proof of who signed, when, and where. An electronic Return Receipt is available at a lower cost; instead of the green card, you get a PDF with the delivery information.
Restricted Delivery
Restricted Delivery limits acceptance to the named addressee or someone they’ve formally authorized. The carrier asks for identification before releasing the item.3USPS. What is Restricted Delivery? Use it when you need to prove a specific individual received the document, not just someone at their office or address.
Hand It to a Clerk
Registered mail has to be handed to a postal employee. You cannot drop it in a mailbox, a collection box, or a self-service kiosk. Bring the sealed mailpiece and completed form to any Post Office retail counter.4Postal Explorer. 503 Extra Services Rural mail carriers can also accept registered items.
The clerk inspects the envelope, confirms it’s properly sealed and addressed, weighs it, and calculates the total (postage plus registered fees plus any add-ons). After applying Label 200 and postmarking the item, the clerk gives you a receipt with a unique tracking number. Hold onto that receipt. It’s your official proof of mailing, and you’ll need it and the tracking number if you ever file a claim.
One detail catches people off guard: domestic registered mail requires First-Class postage. You cannot send it at a lower mail class rate.
2026 Fees and Insurance Limits
Registered fees are charged on top of regular First-Class postage.5Postal Explorer. Domestic – Extra Services and Fees
- Base registered mail fee, no declared value: $19.70
- Declared value up to $50,000: fees rise on a sliding scale. At $50,000, the fee is $38.00, plus $2.90 for each additional $1,000 or fraction over $5,000.
- Declared value over $50,000: $168.50, but insurance coverage still caps at $50,000 regardless of the item’s actual value.
- Restricted Delivery: $8.40
Insurance is built into the registered fee, not sold separately. Whatever you declare is your coverage ceiling, and $50,000 is the maximum USPS will pay on any claim.2United States Postal Service. PS Form 3806 – Registered Mail Receipt If you’re shipping something worth more, registered mail still provides the chain-of-custody security, but you’d need private insurance for anything above that ceiling.
Tracking and Delivery Time
Enter your tracking number at usps.com after mailing to follow the letter’s progress. Registered mail is processed by hand at every step rather than running through automated sorting machines, so it moves slower than regular First-Class mail. Expect delivery to take noticeably longer than a standard letter. The expected delivery date shown in tracking is based on the underlying mail class.
If you bought a Return Receipt, the signed green card arrives in your mailbox after delivery. The tracking page also updates to show delivery or a delivery attempt.
Filing a Claim if It’s Lost or Damaged
If your registered letter never arrives or shows up damaged, you can file an indemnity claim for up to the declared value. The windows are strict:6Postal Explorer. 609 Filing Indemnity Claims for Loss or Damage
- Lost domestic items: file no sooner than 15 days and no later than 60 days from the mailing date.
- Lost items sent to APO/FPO/DPO addresses: file no sooner than 45 days and no later than one year from mailing.
- Damaged items or missing contents: file right away, but no later than 60 days from mailing.
The fastest route is online through your USPS.com account, but you can also start a claim by mail. Either the sender or recipient can file, and whoever does needs the original mailing receipt along with proof of value and evidence of damage.7USPS. File a USPS Claim: Domestic Miss the 60-day window on a domestic item and you lose the right to claim.
When Certified Mail Is the Better Choice
People mix these two up, and the choice matters. Certified mail gives you a mailing receipt, a tracking number, and proof that delivery was attempted or completed. It’s cheaper and faster. For a demand letter, a lease termination notice, or most legal correspondence where you only need to prove something was sent and received, certified mail with a return receipt is usually enough.
Registered mail does everything certified does and adds the physical chain of custody: your item is kept under lock or in a secure cage at every postal facility and signed for by each employee who handles it. The built-in insurance up to $50,000 reflects that purpose.2United States Postal Service. PS Form 3806 – Registered Mail Receipt Save it for contents with real monetary value, or for situations where the extra security is worth the higher fee.
International Registered Mail Is More Limited
Registered service on international items is only available for First-Class Mail International containing documents, including free matter for the blind. You cannot add it to Priority Mail International, Priority Mail Express International, or First-Class Package International Service.8USPS. Registered Mail International
Insurance is far lower internationally. As of January 2026, the maximum indemnity for all destination countries is $40.20, compared to $50,000 domestically. Return receipts and other add-ons vary by country, and some countries don’t accept registered mail at all. Check USPS’s individual country listings before you head to the counter.