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How couriers work out what you pay for shipping

What goes into a freight quote, why the final charge can change after pickup, and the details to get right so your invoice matches the quote.

  • 1 min read
  • Published

By the Tranzit Group Australia team

In short

  • Quotes are built from the locations, weight, dimensions and service you supply.
  • Couriers can reweigh, remeasure and add charges after pickup.
  • Accurate details are the easiest way to avoid adjustments.

A freight quote is only as good as the details behind it. Understanding what couriers base their charges on helps you quote accurately and avoid surprises on the invoice.

What goes into a quote

Freight rates in Tranzit Group Australia are calculated from the information available when you quote, which can include:

  • the collection and delivery locations, including suburb and postcode
  • the number of packages, their actual weight and dimensions
  • cubic or volumetric weight
  • the service type and any delivery requirements
  • the courier's pricing, fuel levies and applicable surcharges

Why size matters as much as weight

A large, light parcel takes up as much room in a truck as a heavy one, so couriers can charge on cubic or volumetric weight. Measure the packed parcel, not the product, and enter the actual dimensions.

Why a charge can change after pickup

Couriers can weigh, measure or inspect a parcel after collection. If it differs from what was booked, they can adjust the freight charge. Other charges can also apply that weren't known at booking, such as fuel surcharges, remote area charges, redelivery fees or address correction fees. Tranzit Group Australia may pass these on, and we'll send you the supporting information we have if you ask.

Charged more than the quote?

The help centre explains what to do, and you can dispute an invoice within 14 days of its date.

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Questions about this guide

Feeling inquisitive? Have a read through some of our FAQs or contact our team for help.

Need more help?

Our Australian support team replies within one business day.

A quote is based on the information you provide and may be adjusted. The price is generally the one shown when you book, subject to adjustments the Terms allow.

The courier may have reweighed or remeasured the parcel, or extra charges such as fuel, remote area or redelivery fees applied.

Tell us within 14 days of the invoice date, with the amount and why you dispute it.

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