Posts by Andrew Newmark

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…

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…

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…

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.

Key Takeaways: The answer is yes, Certified Mail® can be sent to a PO Box. You simply address the letter to a PO Box instead of a street address. How Certified Mail delivery to a PO Box works If the Certified Mail letter requires a signature from the recipient, the mail carrier will leave a…