First-Class Mail® is an affordable way to send envelopes and lightweight packages. First-Class Mail Forever® stamps are sold at the current 1 oz letter rate but.
First-Class Mail® service is the least expensive, most immediate options for mailing postcards, letters, large envelopes (flats), and parcels. What are First-Class Mail® Service, First-Class Package Service-Retail®, and First-Class Package Service® Commercial? First-Class Mail.
Cost of First-Class™ Stamps. Letter Stamps Standard-sized, rectangular envelopes From $0.55. Square, Oversized, or Unusual Envelopes From $0.70. Postcard.
Info on 2019 USPS postage rate increase, new USPS postage stamp prices. Each additional ounce for a First Class Mail letter will cost $0.15 (a decrease from .
USPS first class mail, Stamps.com allows you to print first class mail postage stamps online.