One of the most common questions about First-Class Mail is whether you can track it. The short answer: it depends on what you're mailing. First-Class letters don't include tracking by default, while First-Class packages do. But even for letters, you have options if delivery confirmation matters for your business.
What's Included by Default#
First-Class Mail letters (up to 3.5 oz): No tracking included. When you drop a stamped letter in the mailbox, you receive no delivery confirmation and have no visibility into its journey.
First-Class Mail flats/large envelopes (up to 13 oz): No tracking included. Same as letters—no default visibility.
First-Class Mail packages (3.5 oz to 13 oz): USPS Tracking included. You receive a tracking number and can see scan events as the package moves through the USPS network, including delivery confirmation.
The tracking gap exists because letters and flats are processed differently than packages. Letters move through high-speed sorting equipment designed for volume, not individual piece tracking. Packages are handled differently and scanned at various points.
Tracking Add-On Services#
If you need tracking for First-Class letters, several USPS add-on services provide delivery visibility:
Certified Mail#
Certified Mail is the most common way to add tracking and delivery confirmation to First-Class letters. It provides:
Proof of mailing (USPS records the date you mailed it)
Electronic verification of delivery or delivery attempt
A tracking number to check status
Mail receipt at time of mailing
Cost: $5.30 in addition to regular postage (as of January 2026)
Certified Mail is commonly used for legal notices, important business correspondence, and any letter where proof of delivery has value. Certified Mail provides mailing and delivery documentation, and signature handling depends on selected options and USPS procedures. Add Return Receipt when you need sender-accessible signature documentation.
Return Receipt#
Return Receipt adds signed proof of delivery to Certified Mail. You receive confirmation of who signed for the mail and when.
Electronic Return Receipt: $2.82 — You receive an email or can view the signature online Physical Return Receipt (Green Card): $4.40 — A postcard with the signature is mailed back to you
Return Receipt requires Certified Mail as the base service. For legal documents, contracts, or correspondence where you need proof of who received it, Return Receipt provides documentation that may be relevant for disputes or legal proceedings.
Restricted Delivery#
Restricted Delivery limits who can receive the mail—only the addressee or an authorized agent can sign. This prevents delivery to family members, office staff, or others at the address.
Cost: $13.70 using the USPS combined Certified Mail Restricted Delivery fee line
Restricted Delivery is used when delivery to the specific individual matters—legal service, confidential correspondence, or situations where you need certainty about who received the document.
USPS Tracking (Additional Service)#
You can add USPS Tracking to First-Class letters as a standalone service, though this is less common than Certified Mail.
Cost: n/a for retail, less for commercial mail
This provides tracking visibility without the proof-of-mailing documentation that Certified Mail includes. For situations where you want to see delivery status but don't need certified documentation, this is an option.
Signature Confirmation#
Signature Confirmation captures a signature at delivery without the full Certified Mail service.
Cost: $4.95 (Post Office) or $3.95 (online, eligible products vary)
This provides proof that someone at the delivery address signed for the item, but doesn't include the proof-of-mailing documentation that Certified Mail provides.
Cost Comparison: Tracking Options#
For a one-ounce First-Class letter ($0.78 postage):
Service | Additional Cost | Total Cost | What You Get |
|---|---|---|---|
Standard (no tracking) | $0.00 | $0.78 | No delivery confirmation |
USPS Tracking | n/a | n/a | Delivery scans, no proof of mailing |
Certified Mail | $5.30 | $6.08 | Proof of mailing + delivery confirmation |
Certified + Electronic Return Receipt | $8.12 | $8.90 | Above + signature proof (digital) |
Certified + Physical Return Receipt | $9.70 | $10.48 | Above + signature proof (green card) |
For comparison, Priority Mail (starting around $10.20 at the Post Office) includes tracking automatically. The cost difference between Certified Mail and Priority Mail is often small, which is worth considering if you're already paying for tracking.
Tracking Through Online Mailing Services#
A practical alternative for business mail: online mailing services like Postmarkr apply Intelligent Mail barcodes (IMb) to First-Class letters, enabling piece-level tracking through the USPS network.
When you send mail through these services, each piece receives a unique barcode that USPS scans at various points—processing facilities, delivery units, and final delivery. You can see when your letter is in transit and when it's been delivered.
This tracking is included in the service cost—no additional fees for Certified Mail or tracking add-ons. For businesses sending regular correspondence where delivery visibility is helpful but full Certified Mail documentation isn't required, this provides useful tracking at lower total cost.
The tracking granularity varies. You typically see when mail enters the USPS system, when it's processed at major facilities, and when it's delivered. You don't get the formal USPS proof-of-mailing documentation that Certified Mail provides, but for most business correspondence, confirming delivery is sufficient.
Informed Delivery: The Recipient's Side#
USPS Informed Delivery is a free service that shows recipients images of incoming mail before delivery. USPS scans mail during processing and emails images to registered users.
This doesn't help you track outgoing mail directly, but it indicates when your mail is in the delivery pipeline. If your recipient uses Informed Delivery, they'll see your letter before it arrives—typically the morning of delivery.
For business correspondence, this can prompt faster action: a customer sees your invoice in their Informed Delivery preview and knows to look for it in their mailbox.
You can also add marketing content to Informed Delivery notifications (through USPS's Informed Delivery campaign feature), though this requires additional setup and is primarily relevant for marketing mailings.
When You Need Tracking#
Not all business mail requires tracking. Consider your actual needs:
Tracking provides value when:
Delivery confirmation has legal significance (contracts, notices)
You need documentation for disputes or collections
Time-sensitive delivery needs monitoring
High-value correspondence warrants confirmation
Tracking may not be necessary when:
Routine correspondence has no special delivery requirements
The cost of tracking exceeds the value of confirmation
You're sending high volumes where tracking every piece is impractical
Non-delivery would become apparent through other means (payment not received, etc.)
For most routine business mail—invoices, statements, general correspondence—tracking is a convenience rather than a necessity. Reserve Certified Mail for correspondence where documentation specifically matters.
What Tracking Shows#
When tracking is available, here's what you typically see:
Pre-Shipment: Tracking number generated, awaiting mail to enter USPS system
In Transit to Processing: Mail received at originating facility
Arrived at USPS Facility: Scans at processing facilities along the route
In Transit to Destination: Moving toward the destination delivery area
Out for Delivery: At the local post office, on delivery vehicle
Delivered: Mail delivered to address (may include delivery location details)
Scan frequency varies. Small packages get more consistent scanning than letters. Not every processing point generates a scan event. Some letters show only "In Transit" until delivery, while others show multiple facility scans.
When Tracking Shows Problems#
If tracking indicates delivery issues:
No Movement for Several Days: Mail may be delayed at a processing facility. During high-volume periods, this isn't unusual. If there's no movement for a week or more, consider filing a missing mail search request.
Delivery Attempted: USPS attempted delivery but couldn't complete it—possibly an access issue, nobody available to receive, or address problem. Mail typically returns to the post office for rescheduling or pickup.
Alert/Exception: Something unusual occurred. May indicate address issues, refused delivery, or other problems.
Returned to Sender: Mail was undeliverable and is being returned. Address problems are the most common cause.
For Priority Mail and insured items, you can file claims for lost or significantly delayed mail. For uninsured First-Class Mail, options are limited—USPS will search for missing mail but can't compensate for loss.
Frequently Asked Questions#
Can you track a First-Class letter with a stamp?#
No. Standard First-Class letters with stamps don't include tracking. To track a letter, you need to add Certified Mail, USPS Tracking, or send through a service that applies Intelligent Mail barcodes.
Does USPS scan First-Class Mail?#
USPS scans mail for processing purposes, but these scans aren't visible to senders unless tracking services are added. Mail with Intelligent Mail barcodes (from commercial mailers or online mailing services) generates scan events you can view.
How do I track Certified Mail?#
Certified Mail tracking is available on USPS.com—enter the tracking number from your receipt. You can also track via the USPS Mobile app or by calling USPS. Tracking shows proof of mailing, processing events, and delivery or delivery attempt confirmation.
What's the difference between Certified Mail and Priority Mail?#
Certified Mail is an add-on service for First-Class Mail that provides proof of mailing and delivery confirmation. Priority Mail is a separate mail class with faster handling (1-3 days), included tracking, and included insurance. Certified Mail documents delivery; Priority Mail prioritizes speed.
Is tracking included with USPS Click-N-Ship?#
Click-N-Ship is for printing shipping labels at home, primarily for packages. First-Class Package Service labels include tracking automatically. But Click-N-Ship doesn't add tracking to First-Class letters—you'd still need Certified Mail or similar services.
Choosing Your Tracking Approach#
For most business correspondence, standard First-Class Mail without tracking is sufficient. Delivery is reliable, and the few pieces that encounter problems become apparent through other means.
When tracking matters—legal documents, important contracts, situations requiring delivery documentation—Certified Mail provides the proof you need. The $5.30 service fee (as of January 2026) is reasonable for correspondence where confirmation has value.
For regular business mail where delivery visibility is helpful but certified documentation isn't required, online mailing services offer tracking as part of their standard service. This provides practical visibility without per-piece tracking fees.
Match your tracking investment to your actual needs. Not every letter requires delivery confirmation, but when it matters, the options are available.
Related reading: First-Class Mail Delivery Times: How Long Does It Take?
Related reading: First-Class Mail vs Priority Mail: Cost and Speed Comparison