The popular priority mail flat rate padded envelope will cost $7.10 in 2018 compared to $6.50 in 2017, a $0.60 increase. Postage rates for priority mail flat rate boxes as well as flat rate envelopes will increase in 2018. Priority Mail Flat Rate Boxes & Envelopes (Commercial Base Pricing) package going to zone 8 using priority mail will cost $7.76 in 2018 compared to $7.25 in 2017. Priority Mail will see an average increase of 6.2%. The increases vary depending on the type of envelope, ranging from $0.80 to $0.82 per envelope. Priority mail express flat rate envelopes will also see a rate increase in 2018. Priority Mail Express Flat Rate (Commercial Base Pricing) package going to zone 8 (for example) using priority mail express will cost $35.04 in 2018 compared to $33.76 in 2017. Overall, prices for priority mail express will increase by 3.9%. Priority Mail Express (Commercial Base Pricing) The rate for a first class mail flat/large envelope is increasing by two cents to $1.00 (1 oz.) and postcards are increasing by one cent to $0.35 in 2018. Each additional ounce will cost an extra $0.21 (no change from 2017). If you print postage online, the metered mail rate will continue to receive a three cent discount off the post office price, with rates increasing to $0.47 in 2018 from $0.46 in 2017.

The rate for a first class mail letter (1 oz.) for postage purchased at the post office is increasing by one cent to $0.50 from $0.49. Listed below are the highlights of the 2018 USPS rate increase for customers buying postage: Postal Service implemented new postage rates on January 21. Information provided by the USPS photo courtesy of Terri Wiebold

Usps flat rate small box price 2018