Send certified mail online
Skip the post office line. Write your letter or upload a PDF, choose Certified Mail, and we print it, mail it by USPS Certified Mail, and give you the tracking number. $14.99, or $19.99 with a return receipt.
How it works
01Write it or upload it
Type the letter, have your AI agent draft it, or upload a PDF (up to 6 pages).
02Choose Certified Mail
Certified gives you a USPS tracking number and proof of mailing and delivery. Add a return receipt for the recipient's signature.
03Check the print and pay
You see exactly what will be printed before you pay. A person reviews every piece, and it's usually mailed within one business day.
What to include
- The recipient's full mailing address (US only)
- Your return address, which shows through the envelope window with the recipient's
- A clear subject line and date in the letter
- Copies of any documents you reference (never originals)
Ask your agent
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Common questions
What's the difference between Certified Mail and a return receipt?
Certified Mail gives you a tracking number and proof that the letter was mailed and delivered. A return receipt adds the recipient's signature as proof of who received it.
How do I track it?
The USPS tracking number appears on your order page once the letter is accepted for mailing, with a link to USPS tracking.
Can I send my own PDF?
Yes. Upload a PDF of up to 6 pages; any page size is fitted to 8.5×11 and an address page is added in front, so your document needs no space for addresses.
How fast does it arrive?
It's usually mailed within one business day of payment and travels by First-Class Mail, typically 1 to 5 business days within the US.
Sendpaper prints and mails what you or your agent writes. We're not a law firm or tax preparer and don't give legal or tax advice; for deadlines and the right address, check the notice itself, the agency, or a professional.