Marketplace Fees & GST Calculator NZ 2026

This calculator works out what you actually keep from a marketplace sale in New Zealand once success fees, payment processing and GST are taken out, so you can price to make the profit you intend. Selling on an auction site, an online store or a social marketplace looks simple, but the headline sale price is not what lands in your account. The platform takes a success or listing fee, the payment processor takes a percentage and sometimes a fixed amount, and if you are GST registered, a portion of the price is GST you must pass on to Inland Revenue. Add these up and a sale can return a lot less than the sticker price, which is why sellers who price off the sale value alone often make far less than they think, or even lose money on low-margin items. This tool lays it out clearly. You enter the sale price, the marketplace fee percentage, the payment fee percentage, and whether you are GST registered, and the calculator returns your net cash after fees, the total fees, the GST to set aside if registered, and your true take-home after both fees and GST. Use it to set prices that cover your costs and leave a profit, to compare selling channels with different fee structures, or to understand why your payouts are smaller than expected. If you are GST registered, remember you can usually claim the GST charged on the fees, which softens the cost, and that GST collected is never your money to keep. Fee structures vary by platform and category, so use the actual rates for your channel; this is an estimate to help you price with clear eyes.

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$89.20
net cash after fees
Total fees$10.80
GST to set aside$0.00
Take-home after GST$89.20

GST registered sellers must pass on GST (3/23 of a GST-inclusive price) but can usually claim GST on the fees. Fee rates vary by platform.

How it works

Total fees are the sale price times the marketplace fee plus the payment fee. Net cash after fees is the sale price less those fees. If you are GST registered, the GST to set aside is three twenty-thirds of the GST-inclusive price, and the take-home after GST is the net cash less that GST.

Worked example

On a $100 sale with a 7.9 percent marketplace fee and a 2.9 percent payment fee, total fees are $10.80, leaving $89.20 net cash. If you are not GST registered, that is your take-home. If you are registered, $13.04 of the $100 is GST to set aside, so your true take-home is about $76.16, before claiming the GST back on the $10.80 of fees.

Related calculators

Data sources: the rates and thresholds on this page are maintained against Inland Revenue. Figures are checked twice monthly.

Frequently asked questions

How much do marketplaces take from a sale?

It varies, but a success or selling fee of several percent plus a payment processing fee of around 2 to 3 percent is common, so 8 to 12 percent of the sale can disappear in fees. Enter your platform's actual rates here to see the exact net.

Do I pay GST on marketplace sales?

If you are GST registered, the price you charge includes GST, of which three twenty-thirds must be passed to Inland Revenue. You can usually claim the GST on the platform fees. If you are not registered, GST does not apply to your sale.

Why is my payout less than the sale price?

Because the platform's success fee, the payment processor's percentage, and any GST you must remit all come out of the sale price. Pricing off the sticker value alone overstates your profit; this calculator shows what actually reaches you.