USPS Certified Mail: The Complete Guide for 2026
Everything you need to know about USPS certified mail: what it proves, costs as of January 2026, how to send it, tracking, return receipts, and when to use it.
Upload a PDF. We print, stamp, and mail it.
Here's exactly what happens after you hit send — and what we handle for you. Most people are done in two minutes.
- Setup in minutes
- Same-day processing
- USPS scan updates when available
- Resend or refund guarantee
Your part — 2 minutes
1. Upload Your Document
Upload any PDF document up to 50 pages. We support standard letter-size (8.5x11) documents.
- PDF format required
- Up to 50 pages per mail piece
- Preview before sending
2. Enter Addresses
Add the recipient and return addresses. We verify addresses with USPS to ensure deliverability.
- Automatic address verification
- Save addresses for future use
- We currently deliver to U.S. addresses only. International mailing is on our roadmap.
3. Choose Print Options
Choose black-and-white or color printing, and single- or double-sided printing.
- Black-and-white or full color
- Single or double-sided
- High-quality 24lb paper
4. Pay Securely
Complete checkout via Stripe. We accept all major credit cards.
- Secure Stripe checkout
- All major cards accepted
- Instant payment confirmation
That's all you do. We handle the rest.
Upload a PDF, enter an address, and pay. We print, stamp, and mail it.
Our part — 1 to 5 business days
5. We Print Your Letter
Your document is printed the next business day after processing.
- Same-day processing
- Professional print quality
- Checked for print quality before mailing
6. Mailed via USPS
Your letter is mailed the business day after printing.
- USPS First-Class Mail
- Mail-stream status updates when available
- Picked up by USPS the business day after printing
7. View Mail Status
See processing milestones and available USPS scan updates in your dashboard.
- In-transit scan updates when available
- Delivery scans appear when available
- Return notifications if undeliverable
8. Status History
Your dashboard keeps processing milestones and available carrier events together.
- Most letters arrive within 1–5 business days after mailing
- USPS may not report every scan event
- Available status history remains in your dashboard
Our Guarantees
Fast turnaround
Place your order and we process it the same day. It's printed the next business day and in the mail the day after that.
Quality Guarantee
If there's a print quality issue, we'll reprint and resend for free.
Mail-Stream Visibility
Postmarkr shows processing milestones plus USPS scan updates when available.
Secure & Private
Your documents are encrypted and deleted after printing.
Guides for sending physical mail
Learn about USPS mail classes, tracking, and delivery timelines.
First-Class Mail for Business: Full Guide
Everything small businesses need to know about USPS First-Class Mail, with pricing references aligned to rates as of January 2026.
Certified Mail Cost 2026: Fees & Return Receipt
Certified Mail cost in 2026: current USPS fees, Return Receipt options, and worked totals for a 1 oz letter.
Learn about USPS mail types
That's the whole process. Ready?
Upload a PDF and we handle the rest.