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Coronavirus: Network impacts and delivery delays
Find detailed information and FAQs about network and service impacts that may affect the delivery of your item.
Temporary suspension of Priority Letters
Due to the significant impacts of COVID-19, the Priority Letters service is temporarily suspended from 1 June 2020 until 1 July 2021.
Please note: web page and documents may not yet reflect this change.
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Sending to locations within the
Sending interstate between:
Due to the impacts of COVID-19, at Australia Post’s request, regulatory changes were made by the Government to suspend the Priority Service until 1 July 2021.
View information about bulk lodgements of Priority Mail.
(Premium service, next day delivery to some locations, tracking)
Delivery timeNext business day between all capital cities (except Darwin and in Perth CBD only) and some major centres. See the Express Post next business day delivery network.
For delivery outside the next business day network, Express Post is our quickest postal delivery service.
Letter size and weight guidelines
We classify a letter as an item that:
- weighs less than 500g
- is no thicker than 20mm
- contains flexible items - nothing rigid or inflexible
- has a rectangular shape
- is no bigger than a B4 envelope (260mm x 360mm x 20mm)
If your item doesn't fit this criteria, we'd classify it as a parcel. View domestic parcel services.
Sending keys, pens, USBs or CDs?
Never put rigid or inflexible items in a regular paper envelope - even if you think they're small enough.
They could easily be damaged by our machines or torn from the envelope and lost.
Check our mailing boxes, bags and other packaging options to choose packaging to suit.
Get stamps at a reduced rate
Frequently asked questions