Australia Post Stamp Prices Increase 2024. Australia post also intends to increase the prices for ordinary large letters up to 125 grams from $2.40 to $3.00, and ordinary large letters between 125 and 250 grams from. For concession rates, check concession stamp prices.
For concession rates, check concession stamp prices. 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 australian competition and consumer.