💸 Auction Fee Calculator
Enter the sale price and the fees, and see what the seller actually keeps and what the buyer actually pays — final-value fee, payment processing, shipping, and buyer's premium, itemized in one breakdown.
Informational estimates only — confirm against your platform's fee schedule.
🧮 Break Down the Fees
💸 Fees, seller net & buyer total
| Line item | Amount |
|---|---|
| Final-value fee | $15.90 |
| Payment-processing fee | $3.78 |
| Buyer's premium (buyer-side) | $0.00 |
| Seller net | $100.32 |
| Buyer total | $120.00 |
What is an Auction Fee Calculator?
Every auction sale has two totals that rarely match the hammer price: what the seller walks away with after the platform takes its cut, and what the buyer hands over once premium, tax-free extras, and shipping are added. This calculator shows both from a single sale price, so nobody is surprised at settlement.
Sellers use it to price a reserve that still clears a profit after fees; buyers use it to see the real cost of a lot before the premium inflates it. The itemized breakdown makes it obvious which fee is eating the margin — and whether a slightly higher hammer price is worth chasing.
❓ Frequently Asked Questions
How are the seller fees calculated?
The final-value fee and payment-processing percentage are both charged on the item price plus shipping — that's how most marketplaces bill, since sellers collect shipping from the buyer. The fixed payment fee is added once per order. Seller net is the sale plus shipping minus those fees; the effective rate shows the total as a percentage of the hammer price.
Why does the buyer's premium not affect the seller's net?
At auction houses and many platforms the buyer's premium is charged to the buyer and kept by the house, not passed to the consignor. So it raises the buyer's total but leaves the seller's take unchanged. If your platform routes the premium differently, treat the seller net as the sale-side figure and the buyer total as the checkout figure.
What numbers should I put in for eBay, an auction house, or another site?
Use whatever your platform publishes: eBay-style final-value fees often sit around 13% with a ~2.9% + $0.30 payment cut, while traditional auction houses lean on a buyer's premium of 15–25% instead. The calculator is platform-agnostic — plug in the percentages that apply and it does the arithmetic.
Are these figures exact?
They're informational estimates. Real fee schedules vary by category, store subscription, seller standing, region, and promotional rates, and some fees are tiered or capped in ways this flat model doesn't capture. Confirm against your platform's fee page before relying on the net.