Parcel Post vs Express Post vs Express Plus
Australia Post sells three domestic parcel speeds, and the price gap between them is large enough that picking the wrong one is the most common margin leak for Australian online sellers:
- Parcel Post (Regular): economy domestic service. 2-6 business days between metro areas; longer for regional and rural. Cheapest per-parcel rate. Default for low-margin ecommerce items.
- Express Post: next-business-day delivery within the Express Post Network (most metro postcodes and many regional hubs). Roughly 50-100% more expensive than Parcel Post depending on weight band.
- Express Plus: same speed as Express Post but with money-back guarantee for delivery within the network. A small premium on top of Express Post — used when missed delivery has real financial consequences (B2B, time-critical parts).
💡 The Express Post Network does NOT cover all of Australia. Before charging buyers for Express Post, check the network postcode list on auspost.com.au — outside the network, Express Post arrives at the same time as Parcel Post but you have paid double for it.
Flat-Rate Satchels and Boxes (Where Australia Post Wins on Price)
Australia Post's flat-rate prepaid satchels and boxes are one of the cheapest ecommerce shipping options in the country, provided your item actually fits. Sizes are fixed and pricing is by satchel size, not weight, so heavy-but-small items often ship for much less than their weight-band equivalent.
- Express Post 500g satchel: fits documents and very thin items. Next-business-day within the Express Post Network.
- Express Post 3kg satchel: most common size for clothing, books and small electronics. Up to 3 kg, dimensions roughly 31 x 41 cm.
- Express Post 5kg satchel: larger, fits heavier items. Up to 5 kg, dimensions roughly 36 x 51 cm.
- Parcel Post 500g / 3kg / 5kg satchels: same sizes at lower prices but with Parcel Post (2-6 day) delivery speed.
- Flat-rate boxes (small / medium / large): cube-shaped boxes priced per box rather than per kilogram. Worth comparing against satchel rates for compact-heavy items like books or hardware.
Size and Weight Limits That Catch Sellers Out
Australia Post's parcel limits are stricter than international carriers like DHL, FedEx and UPS, and the failure modes are silent — counter staff usually accept parcels that exceed limits at lodgement, but they get returned or surcharged later in the network:
- Maximum parcel weight: 22 kg at retail counter, 25 kg for regular Parcel Post booked through MyPost Business.
- Maximum dimensions: longest side 105 cm; combined length plus girth 2.4 m (girth = 2 × width + 2 × height).
- Minimum dimensions: 15 x 9 cm. Smaller items are non-machinable and may be returned or hand-sorted with delays.
- Cubic weight conversion: large-but-light parcels are charged on cubic weight using (L × W × H in cm) ÷ 4000. Important for bulky items like packed clothing or pillows.
- Anything heavier than 22 kg, longer than 105 cm, or above the girth limit needs to go via StarTrack (Australia Post's premium courier arm) or a private courier like Couriers Please or TNT.
Three Ways to Lodge a Parcel: Counter, Red Box, Parcel Locker
Australia Post gives you more lodgement options than most national postal services, and they price the same — the difference is convenience and operating hours:
- Post Office counter: 4,300+ branches nationwide. Counter staff scan the label, weigh-check, and induct the parcel into the network. Best for first-time senders who want a stamped lodgement receipt.
- Street Posting Boxes (Red Post Boxes): only for prepaid satchels with the label already attached. No counter wait but no receipt — fine for low-value items, risky for anything worth claiming on if it goes missing.
- 24/7 Parcel Lockers: outdoor self-service lockers at selected Post Offices. Drop off any prepaid parcel using the Australia Post mobile app to scan and induct. Genuinely useful for after-hours lodgement.
- MyPost Business pickup: book a doorstep pickup through MyPost Business for a small fee. Best for sellers shipping 5+ parcels at once.
ℹ️ Red Post Boxes only accept prepaid satchels and small parcels with a pre-printed label. Hand-written labels or unpaid postage shoved into a red box do not get processed — the box gets cleared and your parcel is returned with insufficient-postage tape.
MyPost Business: When Counter Rates Stop Making Sense
MyPost Business is Australia Post's small-business account tier. Setup is free, requires only an ABN, and unlocks discounts of 20-35% off retail counter prices depending on volume tier. Above roughly five parcels a week, the savings compound quickly — at higher tiers (Gold, Platinum) the per-parcel discount on Parcel Post drops below what private couriers offer for comparable service.
What MyPost Business specifically gives you: tiered pricing that resets monthly based on volume, free pickup above a parcel threshold, integrated label printing, automatic tracking emails to buyers, and proper consignment numbers rather than counter-issued tracking. The trade-off: monthly volume targets need to be hit to stay in the higher tiers; small fluctuations bump you down a bracket.
💡 If you ship 5+ parcels a week, set up MyPost Business before your next dispatch. The 20-35% saving is significant for low-margin ecommerce, and the integrated tracking is more reliable than transcribing barcode numbers from counter receipts.
Tracking Number Format and Scan Events
Australia Post tracking numbers are typically 13 characters: two-letter prefix, nine digits, two-letter suffix (e.g. AP123456789AU). International items use destination-country suffixes and follow the UPU S10 standard. Track at auspost.com.au/mypost/track. Common scans:
- "Article posted" / "Picked up": parcel has been physically inducted into the network. Until this scan, only label-data exists.
- "Processed at facility": parcel has been sorted at a distribution centre.
- "In transit": parcel is moving between hubs (typically interstate).
- "With courier for delivery": local driver has the parcel on their round. Delivery usually within the business day.
- "Delivered": completion scan, with safe-drop photo on most modern routes if no signature was required.
- "Awaiting collection": delivery attempted but missed; parcel is at the local Post Office for buyer collection. Held for 10 business days before return to sender.
International Shipping: Standard vs Pack & Track vs Courier
Australia Post offers three international tiers. Picking the wrong one is the most common buyer-complaint trigger for sellers shipping outside Australia:
- International Economy (Standard): cheapest. No tracking after departure from Australia, no compensation. Suitable only for low-value items where loss is acceptable.
- International Standard (Pack & Track): adds tracking to the destination country, with limited tracking detail once handed to the destination postal service. Includes basic compensation.
- International Express (Courier): premium, full tracking end-to-end via Australia Post's courier partner network (DHL, FedEx). 2-4 business days to major destinations. Used for high-value items and customer-service-sensitive shipments.
⚠️ International Economy has no tracking and no compensation. Sellers who default to it for cost savings inherit every "my parcel never arrived" customer-service ticket — the saving per shipment evaporates the first time you refund a single lost parcel. Pack & Track is the sensible minimum for anything worth more than the shipping cost itself.
Common Mistakes Australian Sellers Make
Friction points that cost Australian online sellers money:
- Charging buyers for Express Post when their postcode is outside the Express Post Network. The parcel arrives in Parcel Post timing anyway — buyers expect next-day and complain when it does not happen. Always check the network postcode before quoting.
- Paying retail counter rates above ~5 parcels a week instead of opening MyPost Business. The 20-35% discount compounds — at 50 parcels a month that is several hundred dollars saved.
- Using a 5 kg satchel for a 1.2 kg item. Flat-rate satchels are size-priced, not weight-priced, so a half-empty 5 kg satchel costs the same as a full one. Match satchel size to actual item bulk.
- Defaulting to International Economy for international orders. The lack of tracking turns into customer-service load and lost-parcel refunds. Use Pack & Track or Express Courier instead.
- Forgetting cubic weight on light-but-bulky items (pillows, packed clothing). A 3 kg parcel that measures 50 x 40 x 30 cm has cubic weight of 15 kg and is charged at the 15 kg rate, not 3 kg.
- Assuming Australia Post handles items over 22 kg or longer than 105 cm. Above those limits use StarTrack (Australia Post's courier arm) or a private courier — Australia Post will accept the parcel at lodgement and surcharge or return it later in the network.