Bulk mail changes

From 3 March 2025 a fee will be introduced for non-conforming bulk mail lodgements.  And from 1 July 2025 Clean Mail will no longer be available. Instead, customers will be able to lodge mail as PreSort Letters Unbarcoded.

View bulk mail changes

Letter deliveries have changed

From 15 April 2024, estimated delivery timeframes for regular and priority letters have changed. Please note, letters may be delivered earlier than the timeframes shown on our website as we make progressive delivery model changes across the country through to the end of 2025.

Learn more

Use PreSort Letters to save money

PreSort Letters is a cost-effective way to send fully addressed mail. You can get discounted postage rates if you're sending more than 300 machine-addressed items, all barcoded and sorted.

As well as Priority delivery, PreSort Letters service offers the option of a lower cost Regular delivery service for non-time critical mail.

Benefits

  • Having your mail barcoded and sorted saves you money, because it saves us processing time
  • You can get even further discounts by choosing Regular delivery service

  • Easy to pay for, using either your Australia Post business credit account, a postage meter, cash, debit card or credit card

What you can send

With PreSort Letters, you can send 'Small', 'Small Plus' or 'Large' items.

Size details

Small

Small Plus

Large

Maximum weight

Small

125g

Small Plus

125g

Large

500g

Minimum size

Small

88 x 138mm

Small Plus

88 x 138mm

Large

N/A

Maximum size

Small

130 x 240mm

Small Plus

162 x 240mm

Large

260 x 360mm

Maximum thickness

Small

5mm

Small Plus

5mm

Large

20mm

Please note:

  • Each lodgement must contain items in the same size category
  • All items must carry a barcode
  • All items must be sorted into particular postcode ranges

Delivery timetables

PreSort may be sent via either Regular or Priority speed. Please see the following delivery timetable:

PreSort Letters timetable (PDF 181kB)

Get started

To apply, you'll need to complete a PreSort Letters application form (PDF 60kB) and present it at your approved lodgement facility1.

When this is approved, you can start lodging PreSort Letters at your approved lodgement facility.

1 Approved lodgement facilities are those you nominated when you applied for an Australia Post business credit account. If you don't have an Australia Post business credit account, you can lodge your articles at a Post Office.