Postage Rates 2024 Additional Ounce. The baseline postage rate to mail a flat/large envelope has increased from $1.35 to $1.39 in postage, but the price for each additional ounce also stayed the same. People (2) animals & nature (1) fruits & flowers (1) kids (1) love & wedding (1) format.
The changes will be reviewed by the prc and, if approved, would take effect. To send packages, see usps ground advantage ยฎ service.