2026 tax year

Auctioneer taxes and deductions

What the hammer falls at is the consignor's money. Only your commission and the buyer's premium are income, and running gross proceeds through your own books makes a modest business look enormous and your forms unreconcilable.

Buying lots for your own account makes you a dealer for those lots, with inventory and ordinary income rather than commission. Licensing and bonding are required in most states and are deductible. Online platform fees, catalogue photography and marketing are ordinary costs.

The deductions with a rule attached

These are the lines where the answer is not "keep the receipt". Each has a cap, a percentage or a test that decides how much of the spend you get:

Vehicle: Business driving counts; commuting does not. The rate changed mid-year: 72.5 cents a mile to June 30, 2026 and 76 cents from July 1, so a full year has to be split at that date rather than multiplied by one figure. A hundred business miles a week across the whole year is about $3,861 off your profit. You cannot use the standard rate at all on a vehicle you have already claimed MACRS depreciation, Section 179 or bonus depreciation on.
Equipment: Section 179 property. Deduct the whole cost in the year it goes into service rather than spreading it over the asset's life, up to $2,560,000 a year, and 100% bonus depreciation is now permanent. The catch is the business-use test: anything used more than 50% for the business qualifies, and you deduct at that percentage rather than the full price. So anything you also use at home comes off at the share that is work, not the whole invoice.

The rest of the auctioneer deduction list

Ordinary and necessary business expenses, deductible in full in the year you pay them, provided they are for the business:

Licensing fees state
Marketing
Staff wages
Venue costs
Software subscriptions
Liability insurance

Worth knowing

Hammer price collected for a consignor is not your income, only commission and buyer's premium are.

That is what is specific to this trade. The larger deductions are the universal ones, see the full checklist.

What each deduction is worth to you

On $100,000 of profit with no state income tax, $1,000 deducted saves $305, 30.5%, because it comes off self-employment tax and income tax together. That rate is what turns the licensing fees state line above from paperwork into money for a auctioneer:

Net profit	Saved per $1,000 deducted	Effective
$40,000	$231	23.1%
$100,000	$305	30.5%
$200,000	$297	29.7%

The last row is worth less than the one above it, and that is not a mistake: past the Social Security wage base the self-employment part of the saving drops from 15.3% to 2.9%, and the higher income-tax bracket does not quite make up the difference. A deduction is worth most in the middle. Put concretely: a auctioneer who documents $10,000 across the 8 lines above keeps about $3,049 of it at the middle tier, which is the wage the recordkeeping pays.

Add a state income tax and every row rises. The 1099 calculator applies that layer.

What these words mean

Section 179: A rule letting you deduct the whole cost of equipment in the year you start using it, instead of spreading it over the years you own it.
Depreciation: Spreading the cost of something long-lasting, a vehicle, a camera, a tractor, across the years you use it, rather than deducting it all at once.
MACRS: The standard federal timetable for depreciation, the schedule that decides how much of an asset's cost you deduct in each year of its life.

General information about how these deductions work, not tax advice. Whether a particular expense is deductible for you depends on facts this page does not have, check with a tax professional before claiming anything listed here.