IAA buyer fees
IAA buyer fees explained: what you actually pay in 2026
I see the same mistake on IAA that I see on Copart — buyers bid the number they want to pay for the car, then get blindsided by everything stacked on top of it. IAA buyer fees are actually more fragmented than Copart's. You're not paying one buyer premium — you're paying a tiered buyer fee, a separate bidding fee, a service fee, an environmental fee, a mailing fee, and — if you don't have your own IAA account — a broker fee on top of all of it.
I broke down Copart's fee structure in Copart Buyer Fees Explained. This is the IAA half of that same problem. Here's every fee IAA charges in 2026, a real worked example on the same bid size I used for Copart, and how to fold it into your max bid before you bid — not after the invoice shows up.
IAA buyer fees: the complete 2026 breakdown
1. IAA buyer fee (the big one)
This is IAA's version of Copart's buyer premium, and it's structured differently. Instead of a straight percentage of your bid, IAA runs a flat-dollar tiered schedule up to $15,000 — then switches to 7.5% of sale price above that. A lot of the calculator sites ranking for "IAA fees" quote a simplified "10% standard / 12% luxury" model instead. That's not what IAA's actual published Buyer Fee schedule looks like. Here's the real breakdown:
| Sale price | Buyer fee |
|---|---|
| $0 – $49.99 | $25 |
| $100 – $199.99 | $80 |
| $500 – $599.99 | $210 |
| $1,000 – $1,199.99 | $375 |
| $1,500 – $1,599.99 | $445 |
| $2,000 – $2,399.99 | $535 |
| $3,000 – $3,499.99 | $655 |
| $3,500 – $3,999.99 | $705 |
| $5,000 – $5,499.99 | $775 |
| $6,000 – $6,499.99 | $825 |
| $8,000 – $8,499.99 | $925 |
| $10,000 – $14,999.99 | $1,000 |
| $15,000+ | 7.5% of sale price |
On a $3,500 bid, the buyer fee is $705. On a $10,000 bid, it's $1,000. It scales, but not in a straight line — which is exactly why a flat "estimate 15% and move on" rule fails on IAA more than it does on Copart.
2. Bidding fee (proxy vs. live)
IAA charges a second fee just for the method you use to bid, and it's cheaper to bid smart:
| Sale price | Proxy bid fee | Live bid fee |
|---|---|---|
| $100 – $499.99 | $40 | $50 |
| $500 – $999.99 | $55 | $65 |
| $1,000 – $1,499.99 | $75 | $85 |
| $2,000 – $3,999.99 | $100 | $110 |
| $4,000 – $5,999.99 | $110 | $125 |
| $6,000 – $7,999.99 | $125 | $145 |
| $8,000+ | $140 | $160 |
Proxy bidding — setting your max bid in advance and letting the system bid for you — is cheaper than live bidding at every tier. If you've already run your numbers and know your ceiling, there's no reason to pay more to bid live.
3. Service fee
$105 flat per vehicle. Covers pull-out and loading at the yard, regardless of bid size.
4. Environmental fee
$15 flat, on every vehicle.
5. Mailing fee
$20 to mail your title after the sale.
6. Broker fee (if you're not buying direct)
$100 per vehicle. Most independent flippers without their own IAA account access the platform through a licensed broker — the same way plenty of Copart buyers use family or dealer access instead of registering themselves. This fee doesn't show up on the generic percentage-based calculators, but it's real, and it's usually the single biggest gap between what a quick online estimate says and what your actual invoice says.
7. Storage fees
IAA gives you a short free window — typically 2 business days — before storage starts. After that, budget $25–$40/day depending on the yard. Same rule as Copart: arrange transport before you win, not after.
8. Sales tax
IAA doesn't collect it. It's due at registration, and the rate depends on your state. If you're wholesaling to a licensed dealer, this is usually a non-issue.
What your real out-the-door number looks like
Here's the same $3,500 winning bid I used in the Copart breakdown — run through IAA instead, buying through a broker with a proxy bid:
| Fee | Amount |
|---|---|
| Winning bid | $3,500 |
| IAA buyer fee | $705 |
| Bidding fee (proxy) | $100 |
| Service fee | $105 |
| Environmental fee | $15 |
| Broker fee | $100 |
| Mailing fee | $20 |
| Total before transport | $4,545 |
That's $1,045 in fees — 29.9% on top of the bid. The identical $3,500 bid on Copart came out to $588 in fees, or 16.8%. Same car, same bid, a $457 gap in fees alone before either of you has paid a dollar of transport.
If you already have your own IAA account and skip the broker, you're at $945 — 27%. Still meaningfully higher than the Copart example. The broker fee and the bidding-method fee are the two levers you actually control here — the buyer fee tier isn't negotiable, but how you access the platform and how you bid are.
How IAA buyer fees affect your max bid
None of this matters if you're not building it into your bid ceiling before the auction starts. The formula doesn't change platform to platform:
The only thing that changes between Copart and IAA is what goes into "auction fees" — and as the numbers above show, that input isn't interchangeable between the two. I walk through the full max bid formula with a worked deal in How to Calculate Your Max Bid on Copart — the same math applies on IAA, you just swap in the fee schedule above.
If you're trying to decide which platform to focus on for a specific deal, I compare inventory, title timing, and fees side-by-side in Copart vs IAA: Which Is Better for Flippers?
Common mistakes that kill margins on IAA
Pricing IAA like Copart. A flat "add 15-20%" rule doesn't hold up — IAA's tiered-then-percentage buyer fee plus the broker and bidding fees behave differently at different bid sizes.
Forgetting the broker fee. If you don't have direct IAA access, that $100 is not optional — and it's the fee most online calculators leave out entirely.
Live bidding out of excitement. The live bid fee premium is real money, and needing to bid live usually means you didn't have a firm max bid going in.
Using the bid as the cost basis. Same mistake as Copart. The invoice total — not the hammer price — is what you actually paid.
Run the numbers before you bid
AuctionCalc calculates IAA and Copart fees automatically based on your bid amount, adds transport, parts, and labor, and gives you your max bid ceiling before you're standing in front of the listing guessing.
Analyze a VIN FreeFAQ
How much are IAA buyer fees for a $3,500 vehicle?
On a $3,500 winning bid bought through a broker with a proxy bid: IAA buyer fee $705, bidding fee $100, service fee $105, environmental fee $15, broker fee $100, mailing fee $20 — a total of $1,045 in fees, or about 30% on top of the bid.
Are IAA fees higher than Copart fees?
On comparable bid sizes, IAA's fee load often runs higher than Copart's — largely because of the added bidding fee and broker fee, which Copart doesn't charge in the same way. Run both platforms' numbers on your specific bid before assuming one is always cheaper.
Do I need a broker to buy at IAA?
Not always, but most independent flippers without their own dealer or IAA account buy through a licensed broker, which adds a flat $100 fee per vehicle.
How can I avoid IAA storage fees?
Arrange transport before you win. IAA gives roughly 2 free business days before storage starts, and daily rates run $25–$40 depending on the yard.
Is proxy bidding cheaper than live bidding on IAA?
Yes, at every bid tier. Proxy bidding also forces you to set your max bid in advance, which protects you from bidding past your number in the moment.
Related: Copart buyer fees explained · How to calculate max bid on Copart · Copart vs IAA · AuctionCalc vs competitors