Australia Post Parcel Rates - Updated July 2025

by johna | June 30, 2025 | Reviews E-commerce

Updated 1 July 2025 with new increased prices, removal of tough bags as a flat rate packaging option, and the new extra small postage tier.

Here is what you need to know when sending parcels with Australia Post.

There are two options for postage rates for parcels:

1. Use your own packaging and pay for postage based on the weight or physical size.

2. Use one of Australia Post's packaging options that includes flat rate postage.

Both options include tracking and can be sent by regular or express post.

Flat rate postage is usually the least expensive option but is only available if your item weighs less than 5kg and fits in one of the packaging options.

What you need to know for #1 - use your own packaging

Australia Post charge by whichever is greatest out of the items weight, or the cubic weight which is the items deemed weight based on its physical size.

Postage costs for regular and express post (up to 5kg)

Weight	Regular	Express
Up to 250g	$9.70	$12.70
250g to 500g	$11.15	$14.65
500g to 1kg	$15.25	$19.25
1kg to 3kg	$19.30	$23.80
3kg to 5kg	$23.30	$31.80

For parcels over 5kg, you'll need to use the online calculator.

Source: https://auspost.com.au/sending/parcels-australia

What you need to know for #2 - flat rate postage

Not all of Australia Post's packaging qualify for flat rate postage, so you need to choose carefully otherwise you will pay for the packaging plus the same rates as if you used your own packaging.

There are four packaging size categories: small, medium, large and extra large.

The least expensive packaging is satchels.

However, padded mailers are sometimes the best value as they are bigger than satchels for the same postage cost. For example, if your item is a little too big for a small satchel (355x225mm - $11.50), check if it fits a small tough bag (240x340mm - $12.95) before going to a medium satchel (390x270mm - $15.65).

Packaging options

These are the packaging options that are available for flat rate postage.

Satchel

Parcel Box

Padded Mailer

Padded Bag

Extra small

Type	Size	Price*	Total Regular*	Total Express*
Satchel	280x215mm	N/A	$10.05	$13.05
Padded Mailer Extra Small	215x280mm	TBA	TBA	TBA

Small

Type	Size	Price*	Total Regular*	Total Express*
Satchel	355x225mm	N/A	$11.50	$15.00
Padded Mailer Small	240x340mm	$1.80	$12.95	$16.45
Parcel Box Small	220x160x70mm	$2.40	$13.55	$17.05

Medium

Type	Size	Price	Total Regular*	Total Express*
Satchel	390x270mm	N/A	$15.65	$19.65
Padded Mailer Medium	265x380mm	$2.20	$17.45	$21.45
Parcel Box Medium	240x190x120mm	$2.80	$18.05	$22.05

Large

Type	Size	Price	Total Regular*	Total Express*
Satchel	405x315mm	N/A	$19.75	$24.25
Padded Mailer Large	483x361mm	$3.00	$22.30	$26.80
Parcel Box BX24	410x300x80mm	$3.30	$22.60	$27.10
Parcel Box Large	390x280x140mm	$3.50	$22.80	$27.30