Fee schedule

Worked example — €100 hammer

To see the fee structure in practice, consider a lot that sells at a hammer price of €100.

The buyer’s premium and the seller commission are calculated as straightforward percentages of the hammer price. There are no additional charges, no tiers, and no thresholds at which rates change. The same percentages apply whether the hammer price is €50 or €50,000.

Why this structure

The leading European auction marketplaces charge buyers a premium of around 9% and sellers a commission of roughly 12–15%. SellWiki deliberately charges half: 4.5% and 6.25% respectively. Our view is that auction platforms have extracted disproportionate rent from the collector community for too long, and that a leaner, lower-fee model — viable because we operate exclusively online — benefits both buyers and sellers without sacrificing platform quality or buyer protection.

Splitting the fee between buyer and seller reflects the reality that both parties benefit from the Platform. Buyers gain access to vetted lots they could not otherwise find; sellers gain access to a qualified buyer pool and a secure payment infrastructure. Each side contributes a proportionate share to sustaining that infrastructure.

SellWiki earns only when a sale completes. We do not charge listing fees, monthly subscription fees, relist fees, or featured placement fees. If your lot does not sell, you pay nothing. This aligns our incentives with yours: we are motivated to attract genuine buyers and maintain a platform that people trust.

Currencies

All transactions on SellWiki are denominated and charged in euros (EUR). If you have enabled USD display in your account settings, prices are shown in US dollars as a convenience conversion at an indicative rate, but the euro amount remains the legally binding charge. Your Stripe checkout will always show and process the EUR amount. Exchange rate risk on the indicative USD display is not SellWiki’s responsibility.

Sellers in the eurozone receive payouts in EUR. Sellers outside the eurozone who hold a non-EUR Stripe account will receive the EUR amount; any currency conversion is performed by Stripe at the rate applied at the time of payout, subject to Stripe’s conversion fees, which are outside SellWiki’s control and not absorbed by us.

Taxes

Sellers are solely responsible for reporting and remitting all taxes arising from their sales activity, including value added tax (VAT), income tax, and any customs or import duties that may arise from cross-border shipping. SellWiki is not a tax agent and does not provide tax advice. Transaction summaries available in your seller dashboard are provided for your convenience and record-keeping but do not constitute formal tax statements.

The buyer’s premium and seller commission are service fees charged by SellWiki for access to the Platform and its services. Where SellWiki is required by applicable law to apply VAT to these fees, the relevant VAT will be included in the stated percentage or added separately; we will notify users of any such changes as required. The hammer price itself is a payment from buyer to seller; SellWiki is not the supplier of the lot and does not charge or collect VAT on the hammer price.

Payouts

Seller payouts are processed through Stripe Connect Express on a rolling 7-day schedule by default: the net hammer price (after the 6.25% seller commission) is released to the seller’s connected Stripe account approximately 7 days after the buyer’s payment clears. Sellers can review and adjust their payout schedule within the Stripe Express dashboard, subject to the options Stripe makes available. SellWiki does not impose any additional holding period beyond the minimum required to allow the Buyer Protection dispute window to elapse or to satisfy Stripe’s own compliance requirements.

SellWiki absorbs Stripe’s payment processing fees from our margin on every transaction. Sellers are not charged separately for Stripe’s card processing, SEPA fees, or payout fees. The seller receives exactly the hammer price minus 6.25%, with no further deductions from our side.

Where a payout is held because of an open Buyer Protection dispute, the funds remain in the Stripe Connect infrastructure and are not accessible to SellWiki. Once the dispute is resolved, the appropriate amount is released to the seller or refunded to the buyer in accordance with the outcome. Stripe’s standard hold periods for disputed transactions may apply in parallel.

No hidden fees

In Phase 1 of the Platform, there are no listing fees, no monthly or annual subscription fees, no relist fees for unsold lots, and no featured placement charges. You pay only when a sale completes, and the rates are exactly as stated on this page: 4.5% buyer’s premium and 6.25% seller commission. These are the only charges SellWiki levies.

If we introduce any new fee categories or change existing rates in the future, we will provide at least 30 days’ notice by email and through a prominent notice on the Platform, in accordance with our Terms of Service. Changes to fee rates will not apply retroactively to lots already listed before the notice period expires.