Australia Post Stamp Prices 2024. From april 3, 2024, the cost of sending letters will increase as follows: From april 3, stamp prices are set to be hiked by as much as 25 per cent, increasing the price of an ordinary small letter stamp from $1.20 to $1.50 after the.

Increase from $6.00 to $7.50. The basic postage rate for sending a standard letter within australia.