What you actually pay on top of your winning bid at IAAI: every auction fee from the published schedule, plus shipping and the rest if you add them.
The first line is what your invoice calls the “Buyer fee”. The other auction fees are charged separately, which is why the real cost runs higher than the buyer fee alone.
Estimates from each auction’s published buyer fee schedule; late payment and relisting fees are not included. Not affiliated with Copart or IAA. Always check the final invoice.
$1,000 bid → $600, $5,000 bid → $1,040, $10,000 bid → $1,300 in IAA fees for a standard buyer bidding live: the buyer fee, internet bid fee, service, environmental and title fees. From IAA's published schedule, checked August 2026.
At these bids, yes: IAAI charges more. $1,000: IAAI $600, Copart $503; $5,000: IAAI $1,040, Copart $958; $10,000: IAAI $1,300, Copart $1,098 (Copart: clean title, public buyer).
Fees and shipping are half the answer. AuctionMate Go shows the profit at your bid and at the Buy Now, what similar cars sold for, and the car’s run history.