The Parts of a Payment Fee
A payment fee commonly combines a percentage rate and a fixed charge per successful transaction. The percentage scales with the order value; the fixed amount applies once per transaction. Check whether the provider quotes these together or separately, and whether the rate changes by payment method, card type, channel or currency. A fee may also include GST where applicable. New Zealand GST is charged at 15% (Inland Revenue, GST), but confirm whether GST is added to the provider’s fee and how your business treats it (Source: Inland Revenue (Te Tari Taake)).
Gateway charges and payout costs sit outside the transaction fee when they are billed separately. A gateway may have its own transaction or subscription charge, while a payout may carry a separate transfer fee or timing-related cost. Do not combine these with shipping, product cost or platform fees: shipping is the cost of delivering the order, product cost is what you paid or modelled for the gear, and platform cost covers the ecommerce software. For margin analysis, record each line separately before calculating the total cost of accepting payment.
| Component | Typical basis | Use in analysis |
|---|---|---|
| Percentage rate | A share of the transaction value | Scales with order value |
| Fixed transaction charge | A set amount per transaction | Affects each order regardless of value |
| GST, where applicable | Tax added to the provider’s charge | Record separately according to your tax treatment |
| Gateway or payout cost | Separate service or transfer charge | Include only when billed outside the transaction fee |
Why Low-Value Orders Suffer Most
A fixed charge takes the same amount from every successful order, whether the customer buys one pair of gloves or a full riding kit. The percentage component behaves differently: it grows in proportion to the order value. That makes low-value orders more exposed to the fixed charge and can reduce the margin on products such as base layers, gloves or small accessories.
For illustration only, assume a payment fee of 2% plus NZ$0.30 per order. The figures below separate the two components so you can see which one is driving the effective cost. Run the same calculation using the terms that apply to your store in the profit margin calculator.
| Order value | Percentage component | Fixed component | Total fee | Fee as % of order |
|---|---|---|---|---|
| NZ$80 | NZ$1.60 | NZ$0.30 | NZ$1.90 | 2.38% |
| NZ$200 | NZ$4.00 | NZ$0.30 | NZ$4.30 | 2.15% |
| NZ$500 | NZ$10.00 | NZ$0.30 | NZ$10.30 | 2.06% |
Worked example with sample numbers
This example is illustrative. It uses sample numbers for a motorcycle gear 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: Payment fee = order value x percentage + fixed amount.
| Order value | Fee | Fee as share of order |
|---|---|---|
| NZ$27.50 | NZ$1.24 | 4.5% |
| NZ$54.99 | NZ$2.01 | 3.6% |
| NZ$109.99 | NZ$3.53 | 3.2% |
| NZ$329.97 | NZ$9.64 | 2.9% |
Run the same sum with your own numbers in the free calculator, or browse guides for sellers in New Zealand and more motorcycle gear 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.
Reading the Worked Margin Example
Start with the order value shown in the worked example. Confirm what that figure represents, such as the customer’s merchandise total or the amount processed, before applying the fee, because the percentage portion must use the same base as the example.
Next, follow the two fee components separately. Apply the stated percentage to the order value, then add the stated fixed charge once for that successful transaction. The combined result is the payment cost for the order. Do not treat the fixed charge as another percentage or apply it per item.
Finally, subtract the combined payment cost from the example’s gross margin amount. The remainder is the margin left after payment processing. To compare orders, look at both the dollar fee and the margin retained: a higher-value order may pay more in percentage fees while keeping a stronger margin proportion, whereas a lower-value order can lose more of its margin to the fixed charge. For a broader view, test the same assumptions in the profit margin calculator, then compare product or collection results rather than revenue alone.
Refunds, Chargebacks and Currency
Refunding a motorcycle jacket order does not always reverse the original payment cost. Depending on provider terms, the percentage fee may be retained, the fixed processing fee may not be returned, and a separate refund fee may apply. Record the refund against the original order, then record any retained or added payment cost separately. For illustration only, on a $200 order with a $6 payment cost, a full refund that leaves $6 unrecovered reduces contribution by $6 before return freight, inspection or repackaging.
A chargeback can add a dispute fee and reverse the sale proceeds. If a $150 sale had $50 product cost and a $20 chargeback fee, direct contribution becomes -$70 before advertising and fulfilment: $0 revenue less $50 cost less $20 fee. Track chargebacks by order and include them in contribution margin, rather than treating them as ordinary payment fees on successful sales.
For currency, separate the customer’s transaction currency, the settlement currency and the NZD value posted to your bank. Record the exchange rate and any conversion cost on the transaction date; do not compare a foreign-currency gross sale with NZD costs without conversion. GST in New Zealand is charged at a rate of 15% (Inland Revenue, GST). ORVX keeps each merchant’s trading currency separate and never mixes currencies in one figure (Source: Inland Revenue (Te Tari Taake)).
Comparing Providers Fairly
Compare providers with one fixed test sheet, not each provider’s preferred example. Use the same NZD order values selected for your business and the same payment-method mix: cards, digital wallets and any instalment method you actually offer. If a provider does not support a method, record it as unavailable rather than assigning it a zero cost.
Hold the trading assumptions constant too: monthly transaction volume, average order mix, settlement currency, and refund rate. Include every applicable percentage fee, fixed fee, platform charge and GST treatment. Inland Revenue states that GST in New Zealand is charged at a rate of 15%, so note whether each quoted fee includes GST or whether GST is added. For illustration only, a 2.9% fee plus $0.30 on a $200 order costs $6.10 before any separately applicable charge. Divide total monthly payment costs by total processed sales to find the effective cost rate. A profit margin calculator can help test the arithmetic (Source: Inland Revenue (Te Tari Taake)).
- Document the inputs: order values, payment methods, monthly order count, refunds and the percentage of sales processed through each method.
- Calculate both per-order cost and monthly cost: 100 orders at $200 with a $6.10 fee each produces $610 in payment costs before other charges.
- Keep returned and refunded orders in the comparison assumption, and state whether retained fees remain in the total rather than comparing successful payments only.
Which Measure Should Guide a Decision?
Choose the measure that matches the decision. Use effective fee per order when setting an order-value threshold or checking whether a low-value glove order can absorb delivery and payment costs. Use fee percentage when comparing payment methods or providers across different order values; it shows how the charge scales, but can hide the impact of fixed fees on smaller baskets.
Contribution margin is the decision measure for pricing and product economics: subtract payment fees, product cost, fulfilment, discounts and other variable costs from the order or product revenue. If that margin is thin, changing price, bundling items or steering customers toward a different payment method may be worth testing. A profit margin calculator can structure the calculation.
Treat refund cost as a retention and returns cost, not merely a payment-rate issue. Track it when a product has frequent returns or exchanges. Track chargeback exposure separately when disputed transactions, fraud controls or weak evidence could create losses beyond the original fee. For a provider decision, compare all five measures on your own order mix; for a pricing decision, prioritise contribution margin and effective fee per order.
The useful comparison is not a single advertised rate but the cost each payment arrangement creates across the store’s actual order values and outcomes. Reading percentage and fixed charges together, then checking refunds, disputes and currency treatment, gives New Zealand motorcycle gear retailers a clearer basis for protecting margin without treating every provider or order as equivalent.
Sources
- GST (goods and services tax) (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.