Pre-premium amount if included
-Fair Market Value
Buyer's Premium Confirmation Tool
Confirm whether a price can already include a buyer's premium based on the auction bid increment, or calculate the added premium if it does not.
Enter an amount, percentage, and bid increment
The calculator will test the included-premium relationship and show the add-on math.
Premium already inside price
-Premium to add if not included
-Total if premium is added
-Buyer's premium confirmation tool for auction sales
AuctionMath's buyer's premium confirmation tool helps auctioneers, appraisers, bidders, dealers, and estate professionals review auction sale prices, hammer prices, bid increments, and premium percentages. Use it to check whether a reported price may already include buyer's premium, estimate the premium added to a hammer price, support fair market value research, compare auction results, review invoices, and document pricing assumptions for appraisal or resale analysis.