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

FIRST-CLASS MAIL · December 17, 2025

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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