can you use old stamps when the price goes up australia post

Yes, you can still use your old stamps even after Australia Post bumps up the prices. But beware, if your stamps don’t add up to the new postage rate, your mail might get a stern look from the postal gods—or worse, be returned to sender. So, if the price goes up, simply slap on some extra stamps to make up the difference. It’s like topping up your phone credit, but for your letters.

In short: old stamps aren’t worthless relics; they’re just part of the postage puzzle. Consult Australia Post for the latest rates to avoid any nasty surprises.