Certified Mail® Education
How to Track Certified Mail (and Get Proof It Was Delivered)
How to track Certified Mail in four steps USPS keeps Certified Mail tracking records for two years. Save your receipt or download the records if you may need them later. Where the Certified Mail tracking number comes from Every Certified Mail piece gets a unique 20-digit USPS tracking number when the barcode is created. At…
Read MoreCertified Mail Return Receipt: What It Proves, What It Costs, and Which Type to Choose
Updated September 1, 2026 Key Takeaways: Certified Mail® is the USPS extra service that proves you mailed a letter and records its delivery (see what Certified Mail is). Return Receipt is the add-on that puts the recipient’s signature in your hands. For IRS filings, the Certified Mail receipt alone satisfies the timely-mailing rule in Internal…
Read MoreCan You Add a Return Receipt After Mailing?
No. USPS requires a Return Receipt to be purchased when the mailpiece is accepted for mailing. You cannot add a new Return Receipt after Certified Mail has entered the mailstream. That answer is simple, but the situation is often not. Someone may discover after mailing that a contract, statute, court rule, or internal process requires…
Read MoreUSPS Certified Mail Labels: Which One You Need
You can print USPS Certified Mail labels online using SimpleCertifiedMail.com. Create the label with postage, print it on plain paper or a label, place it on your envelope or package, and drop it in any USPS mailbox or give it to your mail carrier. You’ll get USPS Tracking, proof of mailing, and delivery confirmation. If…
Read MoreHow long does the USPS take to deliver Certified Mail?
First-Class Certified Mail has a USPS service standard of one to five business days, but that is an expectation—not a guarantee. Acceptance, route, weekends, signature attempts, and redelivery can extend the full process.
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