Asking price is not market value.
Use recent sold prices for the same model, size, completeness, and condition. If the comp is cleaner, tested, or includes accessories your lot does not, cut the number before it enters the calculator.
Auction resale profit calculator
Know your walk-away number.
Hammer price is only the first number. Run the premium, tax, freight, dead inventory, selling fees, and prep cost before somebody else’s bid becomes your bad decision.
Conservative case$0.00Lower recovery
Your plan$0.00Entered assumptions
Upside case$0.00Better recovery
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The bid playbook
Three inputs that lie to you.
Most bad lots look profitable because one assumption was allowed to stay optimistic.
“Ten units” rarely means ten sales.
Returns, incomplete units, duplicate slow movers, and hidden damage create dead inventory. Sellable percentage makes that loss visible before you own it. Unknown-condition lots deserve a hard haircut.
Your time and the trip are real costs.
Add fuel, freight, parts, cleaning supplies, packaging, and platform fees. If the profit still looks good after the boring costs, the lot may actually be worth loading.
Focused calculators
Use the right math for the deal.
AUCTION CHECKOUT
Buyer’s Premium Calculator
Turn the hammer bid into the amount that will actually hit your card.
Calculate total cost → BULK RECOVERYLiquidation Pallet Calculator
Model sellable units, recovery from retail, freight, fees, and max purchase price.
Run a pallet → MARKETPLACE EXITeBay Profit Calculator
Estimate the payout after item cost, shipping, final value fees, ads, and supplies.
Estimate profit →Quick answers
Before you bid.
What is a good ROI for an auction resale lot?
There is no universal safe percentage. Faster, tested, easy-to-ship inventory can justify a lower return than bulky, untested, seasonal, or slow-moving goods. Set a cash-profit target first, then use ROI to compare how hard each dollar has to work.
How does Auction Estimators calculate the maximum bid?
It starts with expected revenue from sellable units, subtracts selling fees, fulfillment, acquisition extras, and your target profit, then backs buyer’s premium and sales tax out of the money left for the hammer bid.
Should sales tax be calculated on the buyer’s premium?
Auction invoices and local tax treatment vary. The calculator defaults to tax on hammer price plus premium, but includes a switch so you can match the terms shown by the auctioneer.
Why use a sellable percentage?
Because unit count is not the same as revenue-producing inventory. The sellable percentage discounts returns, damage, missing parts, and stock that is unlikely to sell at your estimated price.
Is this tax or financial advice?
No. Auction Estimators is an estimating tool. Confirm fees, taxes, category rules, and shipping costs with the auction or marketplace before committing money.