Postage Rates Large Envelope 2024. I have “free post” with costs in item price on another platform, but it doesn’t bring in more sales. Postage costs and delivery times for regular letters.
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 at 24 cents per additional ounce. Get tips on reducing mail costs and adapt to postal.