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USPS First-Class Mail Guide (2026)

Navigate current USPS postage rates, delivery speeds, and mailing rules for First-Class letters—or skip the post office entirely.

Need to send a First-Class letter right now? Upload a PDF and Postmarkr prints, stamps, and mails it for $2.05.

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ARTICLES

Editorial illustration of a blank perforated stamp sheet beside an envelope and keepsake box.

FIRST-CLASS MAIL ·

Do Forever Stamps Expire? How to Use Old Stamps Today

No. An unused Forever stamp always covers a standard 1 oz US letter, whatever you paid. Here's how to tell what any old stamp is worth, add the right postage, and avoid a returned letter.

Illustration of a letter passing over a fence between two houses, with tags for the three versions: neighbor, landlord and HOA.

LETTERS ·

Neighbor Complaint Letter Template: Neighbor, Landlord, and HOA Versions

A neighbor complaint letter template and three complete example letters (to the neighbor, a landlord, an HOA), the wording that keeps it civil, and how to mail it so you have a dated record if it escalates.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

LETTERS ·

Gym Membership Cancellation Letter: Template and 30-Day Notice Wording

A gym membership cancellation letter template that satisfies a written-notice clause, with 30-day notice wording, what to do about auto-pay, and how to mail it so you can prove the date if the charges continue.

Illustration of an envelope addressed to The Honorable [Full Name] at a court, in front of a courthouse outline, with a card reading Dear Judge [Last]: Respectfully.

LEGAL ·

How to Address a Letter to a Judge: Envelope, Salutation, and Rules

Write "The Honorable" on the envelope and "Dear Judge" in the salutation, then check the rule that decides whether a judge can read your letter at all. Forms of address for every court level, plus how to mail it.

Three ways to mail a letter without your own printer: use finished paper, print nearby, or upload a PDF.

LETTERS ·

How to Mail a Letter Without a Printer

We print and mail your PDF First-Class: $2.05 for a one-page black-and-white letter.

Editorial illustration of a correctly addressed envelope: return address top left, stamp top right, complete recipient address in the lower center, with a ready check mark.

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 Physical Letter From ChatGPT (Without a Printer)

ChatGPT is brilliant at writing dispute letters, legal notices, and personal outreach. It can't walk to the post office. Here is how to turn that draft into a USPS-delivered letter.

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

Make the PDF on your phone, and we print and mail it First-Class: $2.05 for a one-page black-and-white letter.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

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.

Paper envelopes branch toward three miniature neighborhoods, with a red envelope at the junction.

FIRST-CLASS MAIL ·

USPS Bulk Mail Postage Rates 2026: Costs, Minimums, and Permit Fees

Bulk postage depends on what you send, how your addresses are grouped, and where the prepared mailing enters USPS. Check the postage line on your quote, then budget separately for printing and preparation.

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