Postage Stamp Cost 2025 Australia. Choose ‘australia’ and enter the ‘from and to’ postcode, then choose ‘letters’. Use our online calculator to estimate the postage price and delivery time to send your letter within australia.
Use our online calculator to estimate the postage price and delivery time to send your letter within australia. Australia post has lodged a draft notification with the australian competition and consumer commission (accc), proposing an increase in the basic postage rate from $1.20.