What a Return Really Costs
The cost of a returned order is the cash and gross-profit loss that changes because the return happened, not every cost allocated to the order. Start with the refunded product revenue, then add any outbound freight you cannot recover, return freight paid by the store, payment processing or refund fees, and staff or warehouse handling.
Add inspection, repacking and replacement packaging where those activities are incremental. Include damage as the reduction in resale value: if an accessory originally sold for NZ$200 can only be resold for NZ$150, the recovery loss is NZ$200 − NZ$150 = NZ$50. Include restocking or relabelling costs, and the selling time lost while stock is unavailable or staff process the return. If the item is never resold, its avoidable stock loss may be material.
A useful calculation is: refund + unrecovered freight + payment fees + handling and inspection + repacking + damage or markdown + restocking + lost selling time − recovered resale value. For example, do not count rent, salaried staff or software subscriptions that remain unchanged whether the order is returned. Those are fixed overheads, not return costs, unless the return creates an additional charge or paid labour.
| Include in return cost | Exclude when unchanged |
|---|---|
| Refunded revenue and unrecovered freight | Warehouse rent |
| Return freight, fees and paid handling | Existing software subscriptions |
| Inspection, repacking, restocking and damage | Fixed salaries with no additional labour |
| Lost selling time and reduced resale value | Original product cost if the item remains fully saleable |
The Measures That Show Whether Returns Are Affordable
Use the four measures together because each answers a different question. Return rate shows how often the problem occurs; calculate it by units and, separately, by refund value against delivered revenue. Act when it rises, or when it clusters around a product, fitment, supplier or campaign. It is a diagnostic signal, not a profitability result.
| Measure | Illustrative result | Formula and when to act |
|---|---|---|
| Return rate | 8% | 8 returned units ÷ 100 delivered units. Investigate rising or concentrated rates. |
| Cost per returned order | $65 | ($960 refunds − $600 recovered value + $160 return costs) ÷ 8 returns. Act when it exceeds order contribution. |
| Net recovery value | $55 per return | ($600 recovered value − $160 recovery costs) ÷ 8. Act when resale or recovery economics weaken. |
| Contribution after returns | $3,480 | $4,000 pre-return contribution − $960 refunds + $600 recovery − $160 costs. Act when it turns uneconomic |
Worked example with sample numbers
This example is illustrative. It uses sample numbers for a truck accessories store selling in New Zealand. They are made up to show the method, they are not a benchmark, and your own figures will differ.
Formula: Cost per order sold = return rate x (delivery both ways + packing + value lost on resale).
| Return rate | Cost per order sold | Left over |
|---|---|---|
| 5.0% | NZ$2.62 | NZ$39.15 |
| 10.0% | NZ$5.24 | NZ$36.53 |
| 20.0% | NZ$10.48 | NZ$31.29 |
| 30.0% | NZ$15.72 | NZ$26.05 |
Run the same sum with your own numbers in the free calculator, or browse guides for sellers in New Zealand and more truck accessories guides.
General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.
Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.
How to Read the Worked Return-Cost Example
Read the worked example from left to right. First identify the order’s starting revenue, product cost and other costs that change when the order is delivered. Then isolate the return event: refund or credit, return freight, handling, inspection, repacking, payment costs that are not recovered, and any reduction in resale value. The example is showing the change caused by the return, not assigning every fixed store expense to that order.
Check the assumptions before using its result. Confirm whether revenue is shown GST-inclusive or GST-exclusive, whether outbound shipping is refunded, who pays return freight, whether payment fees are recovered, and whether the item is resold at full value, a discount or not at all. Also check whether the return rate is measured by orders, units or refund value. Changing any of these assumptions changes the result, so label the version rather than treating it as a universal truck-accessory benchmark.
Use the margin output as the order’s tolerance. If the original gross or net profit is small, only a small return cost is needed to erase it. In practical terms, compare the profit available before the return with the return cost per returned order: the former is the maximum burden that order can absorb before becoming unprofitable. Then use the example’s return-rate output to test frequency. Apply the same return cost to a low-, base- and high-return scenario, and observe when total return cost consumes the available margin. A unit return rate helps test product or fit issues; refund value against revenue tests the financial exposure. The right action depends on which output moves first.
Local consumer rules to confirm in New Zealand
Separate statutory returns from voluntary change-of-mind returns. If a truck accessory is faulty, incompatible with the stated vehicle, or materially different from its listing, your return policy cannot remove the consumer’s legal remedies. A general change-of-mind return is different: New Zealand law does not generally require a retailer to accept it, so state clearly whether you offer one and who pays return freight.
Check fitment claims especially carefully. “Fits all Hilux models” or “bolt-on installation” can create expectations that affect whether a return is a product issue rather than a discretionary return. Keep evidence of the listing, compatibility questions, installation instructions and any exclusions. Also check the Fair Trading Act implications of claims about quality, performance, origin and availability. Business buyers may not receive exactly the same treatment as consumers, so do not apply one rule to every order without checking the sale terms.
Confirm the tax treatment of refunds with Inland Revenue or your adviser. Inland Revenue states that GST in New Zealand is charged at 15%. A business must register if turnover was at least NZ$60,000 in the last 12 months or is expected to reach that level in the next 12 months. Overseas sellers should also check the low-value imported-goods rules: physical goods valued at NZ$1,000 or less, excluding GST, may require GST collection for New Zealand consumers. Review your policy against current guidance in these New Zealand seller guides, then have uncertain cases checked by a New Zealand lawyer or accountant (Source: Inland Revenue (Te Tari Taake)).
Which truck accessories returns can be resold
A returned truck accessory is resellable only at the condition and channel it can honestly support. Separate sealed, unused stock from opened-but-complete stock, fitted stock and damaged or incomplete stock. A product that has been installed may still have value, but usually needs inspection, cleaning, repacking and a reduced price. Safety-critical or vehicle-fitment items with damage, missing hardware or uncertain history should not return to saleable inventory.
Measure recovery, not the original selling price. If a $300 accessory is refunded, then resold for $220 after $25 of inspection, repacking and handling, the recoverable amount is $195. That is the figure to use when deciding whether processing the return is worthwhile. Track these outcomes by SKU: repeated recovery losses can indicate a fitment, product-page or packaging problem rather than a simple returns volume problem.
| Return condition | Possible treatment | Measure before acting |
|---|---|---|
| Sealed and unused | Return to standard stock at the normal price | Packaging and seal intact |
| Opened, complete and unused | Resell as opened-box or clearance stock | Missing parts, marks and fitment certainty |
| Fitted or lightly used | Inspect, clean and sell through a clearly described secondary channel | Testing, labour, freight and expected resale proceeds |
| Damaged, incomplete or safety-critical | Hold for parts, supplier review or disposal; do not present as new | Safety risk and recovery value |
Sources
- GST (goods and services tax) (Inland Revenue (Te Tari Taake), checked 26 October 2026).
- Registering for GST (Inland Revenue (Te Tari Taake), checked 26 October 2026).
- GST on low-value imported goods (Inland Revenue (Te Tari Taake), checked 26 October 2026).
How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.