Seller's Guide
How Equipment Auction Commissions and Seller Fees Actually Work
Auction commissions aren't always as simple as the percentage you're quoted. Seller commissions, buyer's premiums and additional fees can all affect the final amount you receive. This guide explains how equipment auction fees work, what to watch for, and how to compare offers before signing an auction agreement.
The three pieces of an auction fee
Every equipment auction agreement comes down to three things: what the seller pays, what the buyer pays, and what else gets charged along the way.
- Seller's commission. A percentage of the hammer price, deducted from your proceeds. This is the number most sellers ask about first, and it is the number most easily made to look small.
- Buyer's premium. An additional amount charged to the winning bidder based on the hammer price. Buyers may factor this cost into their bidding decisions. While the premium is paid by the buyer, it's important to understand how it affects the total purchase price.
- Everything else. Lot fees, marketing fees, title fees, hauling, no-sale charges, minimums. Individually small, together they decide whether a low rate was real.
The structures you will be offered
Straight commission
One percentage of the hammer price, deducted from your proceeds. The simplest and most common structure for consignment sales.
Where it works: Your interests and the auction company's line up: the higher it sells, the more you both make.
What to watch: Ask whether the rate changes by lot value and whether a minimum commission per lot applies to low-value items.
Sliding scale
A higher percentage on the first dollars and a lower percentage above a threshold, or a different rate by lot value band.
Where it works: Fair for mixed consignments where small lots cost as much to process as big ones.
What to watch: Get the exact bands in writing and run your own equipment through them. Two scales can look alike and net very differently.
Buyer's premium only
The seller pays little or no commission; the auction company earns its fee from a premium charged to the buyer.
Where it works: Clean for the seller on paper.
What to watch: The premium is paid by the buyer, but buyers may factor it into what they bid. Ask what the premium is and how it applies to higher-value lots.
Guaranteed minimum
A guaranteed minimum gives you a predetermined amount if the equipment sells under the agreement's terms. Depending on the contract, the auction company may retain some or all of the proceeds above that amount, or you may share in the upside.
Where it works: Certainty when you must hit a number, such as a loan payoff or a closing date.
What to watch: Ask exactly how proceeds above the guarantee are divided, and what the same equipment would net on straight commission.
Outright purchase
The auction company buys the equipment from you and sells it for its own account.
Where it works: Speed, immediate liquidity and price certainty. One transaction, no waiting for a sale date.
What to watch: The buyer is pricing in its own resale risk, so compare the offer with what the equipment could net at auction before you accept.
Working the math on your own equipment
The most important number for a seller is what they take home after commissions, fees and other agreed expenses. But buyer exposure, the expected selling price, payment timing and the services provided also matter. Use round numbers and run each offer the same way.
Example: Selling a $50,000 Loader
Hypothetical offers for illustration only — not Heartland's rates.
| Sale details | Offer A | Offer B |
|---|---|---|
| Hammer price | $50,000 | $50,000 |
| Seller commission | 5% | 8% |
| Commission amount | −$2,500 | −$4,000 |
| Marketing fee | −$500 | Included |
| Hauling | −$1,500 | $0 |
| Lot fee | −$250 | Included |
| Seller net | $45,250 | $46,000 |
Even with a higher advertised commission, Offer B leaves the seller with $750 more under these assumptions. The example assumes the same hammer price for both offers; real bids can vary between auction companies and selling methods.
Our guaranteed-offer comparison walks through this in more detail.
Compare Seller Net and Buyer Cost
Enter the terms you're comparing. The calculator separates what the seller receives from what the buyer pays, because a structure that looks cheaper on one side isn't always cheaper overall.
Illustrative terms only. The 7% and 10% commissions are hypothetical examples, not published seller commission rates or binding quotes. Heartland's actual seller fees are set in each consignment agreement. Change any input to compare the terms you've been offered.
Seller takes home
| A | B | |
|---|---|---|
| Hammer price | $100,000 | $100,000 |
| Seller commission | −$7,000 | −$10,000 |
| Other seller fees | $0 | $0 |
| Seller takes home | $93,000 | $90,000 |
Buyer pays
| A | B | |
|---|---|---|
| Hammer price | $100,000 | $100,000 |
| Buyer's premium | +$6,500 | +$10,000 |
| Buyer pays* | $106,500 | $110,000 |
The buyer's premium is paid by the buyer. It is not deducted from the seller's proceeds.
Same hammer price
Seller receives $3,000 more with Offer A; buyer pays $3,500 less with Offer A.
Same buyer budget
If a buyer is willing to spend the same $110,000 all-in under both offers, they could bid up to $103,398 under Offer A, and the seller would receive about $6,160 more than with Offer B.
The same-budget figure is an illustration of how buyers may factor the premium into their bids, not a prediction.
* Before taxes and other applicable charges. Both offers assume the same hammer price; real bidding varies between auction companies, sale formats and dates. A lower buyer's premium can make the total purchase cost more competitive, but it does not guarantee higher bids or a higher seller net.
Seller Fees Tailored to Your Equipment
Not every consignment requires the same services. Selling a single high-value excavator is different from processing a container of new attachments or liquidating hundreds of individual items. That's why we review each consignment based on the equipment, its value and volume, the auction format, and any transportation, preparation, handling and marketing it requires.
Certain qualifying high-value consignments may be eligible for reduced or specially negotiated seller commissions. Before you consign, we'll explain your applicable fees and selling terms so you know what to expect.
Eight questions to ask before you sign
- 1What is the seller's commission on my equipment, and does it change by lot value?
- 2What is the buyer's premium on the sale my equipment will be in?
- 3What other fees can appear on my settlement statement? Ask for every line item.
- 4Does every lot have to sell absolute, and is there a charge if a lot does not sell?
- 5Who pays to move the equipment, and can it sell from my yard instead?
- 6When exactly am I paid after the sale, and what has to happen first?
- 7If a guarantee or purchase is offered, what would the same equipment net on straight commission?
- 8Can I have the full agreement in writing before I commit anything?
How Heartland Machinery Auctions Handles Seller Fees
We believe you should understand the costs of selling your equipment before signing an auction agreement. Our team reviews the applicable seller commission, fees, auction format and expected payment process with you before your equipment is listed.
We offer live auctions with online bidding and timed online auctions. You can deliver equipment to our Springfield, Nebraska yard or, when appropriate, sell it directly from your own location. We handle the marketing, buyer inquiries, bidding and payment collection, and your personal phone number is not publicly listed as the buyer contact on our auction listings.
Our goal is simple: help you make an informed decision and understand what you'll receive after the agreed selling costs are deducted.