Where do I find my Australia Post tracking number?
An Australia Post tracking number reaches a customer through one of three channels, and which one applies depends entirely on how the item was sent. For an online order it arrives in the dispatch email or SMS the retailer sends once the shipping label is printed. For an item posted in person it is printed on the lodgement receipt issued at the Post Office counter or at a Parcel Locker. After a failed delivery attempt it appears on the card left at the address, or in the AusPost app notification that can replace that card. The same identifier is also printed in plain characters beneath the barcode on the parcel label.
Nothing else is needed to use it. The tracking tool accepts the number on its own, with no account and no login.
"Easily track your deliveries without an account or logging in. All you need is a tracking number."
Australia Post, Tracking service, accessed July 2026.
Who creates the number, and at what point in the journey
The identifier is generated at the moment the shipping label is created, not at the moment the parcel is handed over to Australia Post. That single fact explains most of the confusion around finding it. A retailer running a Parcel Post service quoted at 2-6 business days can print the label on a Monday, email the number the same afternoon, and lodge the carton on the Wednesday, which is why a number can be in an inbox for two days before any scan appears against it.
Three label-creating systems put the number into circulation. Online retailers and marketplace sellers generate labels through Australia Post's business shipping tools or through a third-party platform connected to them, and the number flows straight into the store's dispatch notification. A person posting over the counter has the label and the receipt produced by the Post Office terminal at the point of payment. A person posting a prepaid parcel through a Parcel Locker triggers the same record through the locker screen and a mobile confirmation.
Because the number is attached to the article at label creation, it is the one reference that survives every later handoff. Order numbers, invoice numbers and payment references belong to the retailer or to the till, and none of them can be entered into a carrier tracking field. That is the general rule for where a tracking number is normally issued, and Australia Post follows it.
Telling the number apart from the other references on the same document
Six distinct documents carry an Australia Post tracking number, and each one surrounds it with other references that are easy to mistake for it. The table below sets out where the number sits on each, when it first appears, and which competing references share the page.
| Where it appears | How it is usually labelled | When it first exists | Other references on the same document |
|---|---|---|---|
| Retailer or marketplace dispatch email or SMS | Tracking number, article ID or consignment | At label creation, typically 0-2 days before lodgement | Order number, invoice number, carrier name |
| Post Office lodgement receipt | Printed with a barcode for each article lodged | At payment, one line per article | Receipt or transaction number, outlet identifier, payment reference, Extra Cover amount |
| Parcel Locker lodgement confirmation | Shown on screen and repeated in an SMS | At the moment the parcel is deposited | Locker location name, deposit time |
| The parcel label itself | Plain characters printed under the barcode | At label creation | Delivery address, service name, weight, date |
| Card left after a missed delivery | Printed on the card as the item reference | After the delivery attempt | Collection outlet address, collection deadline |
| MyPost account or AusPost app | Listed against each tracked delivery | Once the item is linked to the account | Estimated delivery date, 2-hour delivery window |
The pattern across all six is the same: the tracking number is the reference printed with or immediately beside a barcode. Every other reference on the document identifies a transaction, an account or an order, not the physical article.
Reading a retailer or marketplace dispatch email
A dispatch email carries at least two reference numbers, and only one of them works in a carrier tracking field. Retailers send an order confirmation at checkout and a separate dispatch notification when the label is printed, and the tracking number appears only in the second message. Searching an inbox for the word "dispatched", "shipped" or "on its way" finds it faster than searching for the retailer's name, because the confirmation email usually ranks higher in date order.
The number is the string sitting next to a track link or a barcode image, and it is not the order number that appears in the email subject line. A quick test settles it: an Australia Post identifier is accepted by the carrier's own search field, and an order number is not.
Marketplace orders add one more step. A seller on eBay, Amazon AU, Catch, Temu or Shein chooses the carrier, so the number in the dispatch email may belong to StarTrack, Aramex, CouriersPlease or an international consolidator rather than to Australia Post. The marketplace order page normally names the carrier next to the number, and that name decides which tracking system will recognise it. Service choice matters as much as carrier choice: Australia Post quotes International Standard at 5-10 business days with tracking included, while International Economy is sold with no tracking at all, so an order shipped on the cheapest option may have no number in existence to find.
Finding it on a lodgement receipt from a Post Office or Parcel Locker
The lodgement receipt is the only copy of the number a self-sender receives, and Australia Post treats it as proof of posting rather than as a courtesy slip. Australia Post lists "proof of posting when lodged over the counter at a Post Office" and a "unique identification number" as features of its tracked letter service, and the same receipt performs both jobs for parcels.
A counter receipt prints one barcoded line per article lodged. Someone posting three parcels in one visit receives three separate tracking numbers on one receipt, not one number covering all three.
Parcel Locker lodgement works differently. Eligible prepaid parcels under 16 kg and no larger than 35 x 44 x 61 cm can be deposited at any of the more than 1,500 Parcel Lockers in the network using a mobile phone, and the confirmation arrives on the locker screen and by message rather than on printed paper. That message is the receipt and needs keeping like a paper slip.
Keeping the receipt matters for a concrete reason. Australia Post requires compensation and Extra Cover claims to be lodged within 6 months of posting, or within 30 days of delivery or intended delivery for International Courier and International Express items, and for a lost domestic item it is the sender who claims. Without the receipt there is no number and no proof of posting, and standard cover of up to $100 becomes unclaimable.
Getting it from the card or app notification after a missed delivery
A missed delivery produces the number twice: once on the physical card and once inside the AusPost app, where a collection QR code has taken over the card's function. Australia Post describes the app feature as a way to "scan the QR code to collect missed deliveries (instead of a physical card)", which means a recipient who never sees the card can still identify and collect the item.
The collection deadlines attached to that number are short and differ by location. An item placed in a Parcel Locker must be collected within 2 business days, after which it moves to a nearby Post Office. An item taken to a Post Office is held for 10 business days.
"You have 10 business days to collect your item before it's returned to sender."
Australia Post, Missed parcel deliveries, accessed July 2026.
The number on the card is the same article identifier the sender holds, so a recipient who has lost the retailer's email and then receives a card has recovered the reference without contacting anyone. Details of the collection and return sequence are covered separately in what happens when a delivery fails.
Where the number sits in a MyPost account and the AusPost app
A MyPost account collects every item addressed to the account holder's verified addresses in one list, which removes the need to hold the number at all for most incoming parcels. Each entry in that list displays its own tracking number alongside the delivery estimate and, on eligible deliveries, a 2-hour delivery window. Opening an individual delivery reveals the number as text that can be copied.
The app adds a second route to the same data. Notifications are sent when the driver loads the item onto the vehicle for delivery that day, and each notification is tied to a specific article, so the number can be retrieved from the notification history even after the parcel has arrived. Items sent through the account's own postage tools appear in a sending list rather than a receiving list, which is where a self-sender's numbers accumulate.
Neither view is exhaustive. An item addressed to a workplace, a relative's house or an address not verified on the account will not appear automatically, and its number has to be added manually or retrieved from the retailer. Full profiles of the tracking surfaces are set out on the Australia Post page.
What the number looks like, so it can be picked out from the rest of the page
Australia Post uses more than one identifier shape, and the shape depends on the service rather than on the document. Domestic article identifiers mix letters and digits and vary in length between services and label systems, so length alone is not a reliable test. International items follow the Universal Postal Union's S10 standard, which fixes both the length and the position of the check digit.
"This tool checks the validity of an S10, 13-character identifier by calculating the check digit in character position 11."
Universal Postal Union, Standards, accessed July 2026.
An S10 identifier is 13 characters long, opens with two letters that indicate the service, closes with the two-letter ISO country code of the postal operator that issued it, and carries a check digit in position 11. Items lodged in Australia for an overseas destination therefore end in AU. The service letters are the reason two identifiers of identical length can behave differently in tracking, a point covered in more depth in the letter prefixes.
| Reference type | Structure | Where it is seen | Works in carrier tracking |
|---|---|---|---|
| Domestic article identifier | Letters and digits, length varies by service and label system | Parcel label, lodgement receipt, dispatch email | Yes |
| International S10 identifier | 13 characters, two letters at each end, check digit in position 11 | International parcel labels and receipts | Yes |
| Consignment reference | Groups several articles lodged together under one booking | Business dispatch emails, freight paperwork | Yes, and it returns the whole group |
| Retailer order number | Set by the store, often includes initials or a year | Order confirmation email, invoice, packing slip | No |
| Receipt or transaction number | Identifies the sale at the counter, not the article | Post Office lodgement receipt | No |
| Customer or account number | Identifies the sender's account with Australia Post | Business labels, invoices | No |
The practical filter is the barcode. Each of the two working identifier types is printed with a barcode because it has to be scanned at every handling point, while order numbers, transaction numbers and account numbers are not. Broader guidance on what a tracking number looks like across carriers covers the same distinction.
How long the number and the receipt need to be kept
The receipt should be kept for at least 6 months after posting, because that is the outer limit Australia Post sets for compensation and Extra Cover claims. For International Courier and International Express items the window is far tighter at 30 days from delivery or intended delivery, so those receipts are the ones most often discarded too early.
The enquiry thresholds run on a separate clock and are shorter. A domestic item qualifies for a missing item enquiry once it has not arrived within 10 business days of the expected delivery date; International Standard uses the same 10 business days from the estimated delivery time; International Post Registered uses 25 business days from posting; International Economy and Airmail require 3 months; and International Courier or Express needs only 1 business day. Every one of those forms asks for the tracking number, so losing the number closes the process before it starts.
Why a number found in an email returns no result yet
A newly issued number returns no result until the first acceptance scan, which commonly falls one or two days after the dispatch email arrives (an estimate, since it depends on the sender's lodgement routine). Australia Post notes on its Parcel Post service page that "track events will vary depending on how your item is lodged and delivered", which is why two parcels sent on the same day can show different first scans. Four causes account for almost every dead number.
The label exists but the item has not been lodged. The retailer has printed the label and released the number to its customer, and the carton is still in the warehouse. This is the single most frequent cause of a dead number in the first two days.
The item was lodged after the last clearance. An article deposited in a street posting box or a locker late in the day is collected on the next working day, and the first scan carries that later date.
The number belongs to a different carrier. Marketplace sellers use several networks, and a reference issued by another carrier will not resolve in an Australia Post search field even though it is a valid tracking number elsewhere.
The wrong string was copied. Order numbers, invoice numbers and transaction numbers sit next to the tracking number on the same document, and the check digit built into an S10 identifier makes a mistyped international number fail validation outright.
What the tracking number does not reveal
The number identifies one article and carries nothing about the parties, the contents or the value, which sets three hard limits. It does not name the sender: a recipient holding only the number from a card cannot use it to discover which retailer sent the parcel, because the record shows movements rather than parties. It does not confirm contents either, so a delivery scan is not evidence that the correct goods were inside, and a damage or missing-contents report still has to be made in person at a Post Office with the item and its packaging, inside the same 6 month claim window.
It also does not prove the parcel is moving. A record showing only that a label was created is a record of an intention to send, and until a physical acceptance scan appears the item has not entered the network at all. Distinguishing the two states is the whole reason the first scan matters more than the number's issue date.
When the sender has not passed a number on
Australia Post cannot look up an inbound item by delivery address, name or order number, so the sender is the only route to a missing tracking number. That holds whether the sender is an online retailer, a marketplace seller or a relative who posted a birthday parcel, and it holds for a further reason: for a lost domestic item, Australia Post pays compensation to the sender, and it is the sender who holds the proof of posting.
Three requests get results faster than a general complaint. Asking specifically for the article or consignment number rather than for a status update gives the retailer a single field to copy. Asking whether the item was lodged with Australia Post or with another carrier prevents an hour spent searching the wrong system. Asking for the lodgement date establishes which enquiry threshold applies, since the 10 business day domestic window is counted from the expected delivery date rather than from the order date.
If the sender cannot produce a number, the item was almost certainly sent on an untracked service, and no number exists to be found. Ordinary letter post carries no barcode and generates no tracking record, which is the practical difference between it and a registered or tracked product. Once the number is in hand, entering it in the tracking field on the Australia Post page returns the full scan history rather than the last line alone, and the missing item enquiry form becomes available for anything that passes its waiting threshold. Compensation rules, claim windows and the parties entitled to claim are set out in Australia Post's compensation guidance.