Written by: Business Services January 28, 2021 Mail Services would like to share with everyone the new USPS Postage Rates effective Jan. 24, 2021. If you have any questions please contact Mail Services 256-824-6116 First Class Mail Letters - 2021 Rates INCREASE PER LETTER - 2021 Rates vs. 2020 Rates Mailpiece Weight 2021 2020 Increase Letters - 1 oz. $0.55 $0.55 $0.00 Letters - Additional Ounces $0.20 $0.15 $0.05 Metered Mail Letters (Stamps.com Rate) - 1 oz. $0.51 $0.50 $0.01 Metered Mail Letters (Stamps.com Rate) - Additional Ounces $0.20 $0.15 $0.05 Flat/Large Envelope - 1 oz. $1.00 $1.00 $0.00 Flat/Large Envelope - Additional Ounces $0.20 $0.20 $0.00 Postcards $0.36 $0.35 $0.01 International Letters - 1 oz. (County Groups 1-9) $1.15 $1.15 $0.00 International Postcard (County Groups 1-9) $1.15 $1.15 $0.00 Priority Mail will see an average rate increase of 3.6% in 2021. Priority Mail Express will see an overall rate increase of 2.5% in 2021. For more information: 2021 Postage Rate Increase