Compare your letter service options

Options
Service Benefit Delivery time Price
Regular

Benefit

Cost-effective

Delivery time

2-6 business days^ depending on destination

Price

From $1
(Concession 60c)
Buy stamps
Priority

Benefit

Speedier delivery

Delivery time

1-4 business days^ depending on destination

Price

From $1.50
(Concession $1.10)
Buy Priority labels
Registered

Benefit

Tracking and signature on delivery for important mail

Delivery time

2-6 business days^ depending on destination

Price

From $4.80
Buy now
Express

Benefit

Premium service, next day delivery, tracking

Delivery time

Next business day*

Price

From $5.75
Buy now

Express Post

Prepaid envelopes
From $28.75 (5 pack)

Registered Post

Prepaid envelopes
From $42.75 (10 pack)

Domestic stamps

Self-adhesive
From $10 per book

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 item 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.

You can calculate postage and delivery times based on the size and weight of your package.

Get stamps at a reduced rate

Are you a concession card holder? You may be eligible for a reduced rate on stamps.

Find out about concession stamps

Related products

For more detailed information about letters, refer to the Letters Products and Service Guide (904kb)

  • ^ Delivery times apply from the day after posting and vary depending on your origin and destination. For more information, refer to our delivery estimator.
  • * The national next business day delivery network operates between all capital cities (except Darwin and in Perth CBD only) and some major centres.