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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.

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ARTICLES

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.

Loose envelopes, a red three-slot sorter and neatly banded letter stacks on a navy surface.

FIRST-CLASS MAIL ·

Commercial First-Class Mail Rates: Presort Costs and Eligibility

First-Class Presort can reduce postage on a qualifying mailing. Compare current letter rates, preparation requirements and applicable fees before deciding whether the complete mailing costs less.

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