Postage Rates 2024 Additional Ounce Rate
Postage Rates 2024 Additional Ounce Rate. 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. Blind literature packets (maximum weight 7 kg) postage, registration and acknowledgement charges.
The biggest change is with the additional ounce rate. Postcards sent domestically will be 56 cents, up from 53 cents.