How to Use the Fee Calculator
It takes about thirty seconds. Here's the flow.
- Pick your Product Category. Referral fees range from 6% to 15% depending on category, so this changes your result more than anything else. Home & Kitchen sits at 13%. Consumer Electronics at 8%.
- Enter your Selling Price (AUD). Use the full price the buyer pays, including any delivery you charge. Amazon calculates the referral fee on that total, not just the item price.
- Enter your Product Cost (COGS). Your landed cost per unit: what you pay the supplier plus freight and duties to get it into the country.
- Add Unit Weight (g) and Package Dimensions (L × W × H, cm). This sets your FBA size tier and weight band, which drives the fulfilment fee. Get this wrong and your whole estimate drifts.
- Choose your Selling Plan. Individual ($0.99 per unit) or Professional ($49.95/month).
How Amazon FBA Fees Are Calculated in Australia
Net profit per unit = Selling price − Referral fee − FBA fulfilment fee − Product cost (COGS)
Where the referral fee equals your category referral percentage multiplied by the total sales price (price plus delivery), and the FBA fulfilment fee is a flat rate set by size tier and weight band, with a separate lower rate for items priced under $13.
The Size and Weight Bit Most People Get Wrong
For envelopes, Amazon charges on your product's actual unit weight. For parcels and oversize items, it charges on the greater of your unit weight or your dimensional weight. Dimensional weight is (length × width × height in cm) divided by 4,000. So a light, bulky item like a foam cushion gets billed on its volume, not its feathery weight. This is the part most people miss, and it's why a $9 product can quietly become unprofitable.
The Low-Price Discount
Amazon runs a lower FBA fulfilment rate for items priced under $13. The gap is roughly $0.91 per unit on most tiers. For a seller moving 2,000 cheap units a month, that's around $1,800. Not nothing.
A Quick Note on GST and Storage
Two costs the headline calculation leaves out. Amazon quotes all these fees excluding GST (Australia's GST is 10%). If you're GST-registered you'll generally claim it back, but it still hits your cash flow in the meantime. And monthly storage runs $37.00 per cubic metre (standard tier, January to September) rising to $51.80 over the October to December peak. Slow-moving stock eats margin you didn't budget for. For the tax side, the registering a business in Australia guide is a sensible next read.
How to Reduce Your Amazon FBA Fees in Australia
Fulfilment fees are tier-based, so a 2 cm reduction in package height can bump you down a band. Real money. Shrink the box, not the product, and check the dimensional-weight maths before you finalise packaging. Use the under-$13 rate deliberately for high-volume, low-cost lines.
The biggest lever, though, isn't fee-tinkering. It's your cost of goods. A better supplier price moves your margin far more than shaving packaging ever will. If you sell private label, tightening your sourcing is where the real gains live. See how to source from private-label manufacturers and find profitable products. And plan inventory around the October to December storage hike so you don't trigger long-term storage surcharges.
FBA vs Fulfilling Orders Yourself: Which Is Cheaper?
With FBA, Amazon does the work, your listings get the Prime badge, and you pay a fixed per-unit fulfilment fee. Fulfil orders yourself and you control the cost, but you lose the Prime advantage and you spend your own time on pick, pack, and customer service.
Here's the honest split. For small, light, fast-selling items, FBA usually wins. For heavy or slow-moving stock, doing it yourself can come out cheaper. Run your specific product through the calculator both ways before you decide. For the wider picture, compare dropshipping vs Amazon FBA, read the full how to sell on Amazon guide, and for local context see selling on Amazon Australia.
Frequently Asked Questions
Amazon FBA fees in Australia combine a referral fee of 6% to 15% (set by category) and an FBA fulfilment fee that starts around $4.55 for small envelopes and rises with size and weight. You'll also pay $49.95 a month on the Professional plan, or $0.99 per unit on Individual.
The referral fee is a percentage of your total sales price, including any delivery you charge the buyer. Most categories sit between 6% and 15%. Home & Kitchen is 13%, Consumer Electronics 8%. There's no minimum or maximum, so it scales directly with your selling price.
The Individual plan charges $0.99 per unit sold with no monthly fee, which suits sellers moving fewer than about 50 units a month. The Professional plan costs $49.95 a month (excl. GST) regardless of volume, and unlocks advertising, bulk tools, and top placement eligibility. Past roughly 50 sales, Professional usually works out cheaper.
Amazon quotes its seller fees excluding GST, and Australia's GST is 10%. If you're GST-registered, you can generally claim the GST on those fees back through your BAS. The calculator works in GST-exclusive terms by default. Check your own registration status, and talk to an accountant about your situation.
Reduce your package size to drop into a cheaper fulfilment tier, since fees are banded by size and weight. Price high-volume cheap items under $13 to access the lower fulfilment rate. And honestly, the biggest lever is your supplier cost, not the fee itself. Better sourcing beats fee-tweaking every time.
FBA storage fees are charged per cubic metre of warehouse space your stock occupies. As of 2026, standard-size inventory runs $37.00 per cubic metre from January to September, rising to $51.80 from October to December for the holiday peak. Oversize tiers cost slightly less. Slow sellers can also trigger aged-inventory surcharges.
It can be, thanks to Amazon's reduced fulfilment rate for items priced under $13, which trims roughly $0.91 off most tiers. But on very low-margin products, even the discounted fee can swallow your profit. Run the exact item through the calculator before committing. The maths decides, not the discount.
It uses Amazon's current published rates from sell.amazon.com.au/pricing, including the FBA fulfilment fee reductions effective June 10, 2026. Treat results as a close estimate, not a guarantee. Your actual fees can vary with promotions, surcharges, and category exceptions. Always confirm final figures in your Seller Central account before pricing.
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