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USPS

USPS rates, regulations, and services for business mailers. Covers First-Class, Certified Mail, EDDM, and tracking options with 2026 pricing.

19 articles

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FEATURED ARTICLE

Illustration of a letter with four paths out: print and stamp it yourself, take it to the post office counter, use an online mail service, or print at a library or shop and then mail it.

LETTERS ·

How to Send a Letter: The 4 Practical Ways, Compared

Address and stamp a paper letter, or compare four practical ways to send one: your mailbox, the post office, an online service, or a print shop first.

LATEST ARTICLES

Illustration contrasting a crossed-out printer with the three printer-free ways to mail a letter: handwrite it, print at a library or shop, or upload a PDF to a service that prints and mails it.

LETTERS ·

How to Mail a Letter Without a Printer: 3 Ways That Work

You don't need a printer to mail a letter. Compare the three printer-free options on cost, speed, and proof — and see when a stamp beats a service.

How to Address an Envelope Correctly

LETTERS ·

How to Address an Envelope Correctly

Where the return address, recipient block, and stamp go — plus a five-pass check for the errors you can fix and the delivery risks you can't.

Illustration of three stages: a chat draft becomes a clean PDF, and the PDF becomes a printed letter in the mail — the chat itself cannot mail anything.

LETTERS ·

How to Send a Letter From ChatGPT (and Actually Mail It)

ChatGPT can write and format a letter, but it cannot print, add postage, or hand it to USPS. Copy the prompt below, export a PDF, then print it yourself or mail it online.

Illustration of a phone scanning a paper page, the scan becoming a clean PDF, and the PDF becoming a printed letter in the mail.

USPS ·

How to Send a Letter From Your Phone (iPhone and Android)

Scan a paper document to PDF on iPhone or Android, then upload it from your phone and have it printed and mailed First-Class.

Labeled diagram of the USPS Certified Mail receipt, PS Form 3800.

CERTIFIED MAIL ·

How to Fill Out a Certified Mail Receipt (PS Form 3800)

Every field and checkbox on the green Certified Mail form — who fills what, what each costs as of July 12, 2026, and when you can skip the form entirely.

EDDM Pricing in 2026 — $0.26 per piece postage, about $0.36-$0.54 per piece all-in.

EDDM ·

EDDM Pricing in 2026: Per-Piece Rates and Your Real All-In Cost

EDDM pricing in 2026: Retail is $0.260 per piece. See current Retail and BMEU rates plus what a campaign really costs.

CERTIFIED MAIL ·

Can You Send Certified Mail to a PO Box?

Yes—USPS delivers certified mail to PO boxes. Most recipients get a pickup notice and sign at the counter, but Signature on File can change the pickup flow.

FIRST-CLASS MAIL ·

First-Class vs Priority Mail: Key Differences

First-Class Mail is the cheap everyday option for letters and documents; Priority Mail is the faster, tracked service for packages. Here's how they compare and when to use each.

FIRST-CLASS MAIL ·

Bulk Mail Postage Rates [2026]: USPS Marketing Mail Pricing

Complete 2026 USPS Marketing Mail rate tables by presort level. Compare automation, carrier route, nonprofit, and EDDM rates. Effective January 18, 2026.

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