How to Use My Account This video explains how to use your preferences, tracking your bids, bid totals, seeing your favorites and finding buyer invoices or seller statements. Angel Calderon angel@assiter.com (806) 656-8376 Stephen Judkins stephen@assiter.com (806) 656-8374 Spanky Assiter spanky@assiter.com Sales Tax: 6.75% Buyer's Premium: 15% Online Bidding A buyer's premium is a percentage of the high bid that will be added to the high bid and become part of the purchase amount at settlement. Bid Increment: $5.00