Auction House Break-Even Analysis: $61K Monthly Revenue Target

Fixed costs $39.6K Core monthly base

Contribution margin 81.5% After variable costs

Break-even revenue $48.6K Monthly target

Break-even timing Month 7 Launch ramp

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for an auction house.

Lean Base Full

Monthly revenue Revenue sets the pool that covers variable costs and fixed overhead. $ Soft launch Scale month Variable expenses Use direct costs that rise with each sale, listing, and promotion. $ Tight spend Heavy spend

Money available to cover fixed costs $44,000 $54,000 revenue - $10,000 variable expenses

Margin ratio

81%

Covers fixed costs

Yes

Fixed monthly costs Use the monthly overhead that stays on even when sales slow. $ Lean team Larger team

Break-even chart Revenue Total costs

Which auction house expenses stay fixed, and which move with more sales?

Cost classification

Break-even is only reliable if fixed expenses stay fixed and volume-linked fees move with sales. Here, Month 7 break-even depends on separating rent and insurance from transaction fees, appraisal logistics, ads, support, and staffing steps.

Expense	Cost	Break-Even Treatment	Common Mistake
Office Rent	Fixed	Use $3,000 per month from Month 1 through Month 60 when calculating the monthly break-even floor.	Treating signed rent as optional when auction volume is slow.
Business Insurance	Fixed	Use $300 per month across the planning range because it does not rise with more lots, bidders, or hammer prices.	Linking insurance to sales volume instead of the active operating period.
Transaction Processing Fees	Variable	Apply the fee as a percentage of transaction value, starting at 2.5% in the first year and falling to 1.5% by the fifth year.	Modeling payment fees as fixed even though higher order value increases the charge.
Third-Party Appraisal & Logistics	Variable	Apply the fee to auction activity, starting at 5.0% in the first year and falling to 3.0% by the fifth year.	Ignoring appraisal and logistics drag when higher-value items require more handling.
Digital Advertising Spend	Variable	Model as revenue-linked spend, starting at 8.0% in the first year and stepping down to 5.0% by the fifth year.	Treating committed growth marketing as easy to cut after campaigns are live.
Customer Support (Volume-based)	Semi-variable	Use a volume-linked rate starting at 3.0% in the first year, with support load rising as more bidders and sellers transact.	Assuming support stays flat while buyer questions, disputes, and seller onboarding grow.
Platform Hosting & Security	Semi-fixed	Use the $2,500 monthly base until bidder traffic, listings, or auction events push the platform past capacity.	Scaling hosting smoothly each month instead of adding capacity in steps.
Salaried Team	Semi-fixed	Model payroll in hiring steps, such as support rising from 1.00 FTE in the first year to 3.00 FTE in the fifth year.	Treating hired payroll as optional after roles are filled.

How does break-even change as this auction house moves from lean to base to full operating spend?

Scenario table

The lean case breaks even around $40K a month, the base case around $51K, and the full case around $69K. Higher payroll and acquisition spend lift the hurdle faster than the take-rate improves it.

Planning cases only; actual auction volume, take rate, and payroll timing can move break-even.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean operating case	$40,440	$7,440	$33,000	81.5%	$0	Lowest hurdle, but any fee slippage can push it under break-even.
Base acquisition case	$51,125	$9,458	$41,667	81.5%	$0	This is the planning case; it needs steady seller and buyer flow to stay at breakeven.
Full growth case	$69,461	$11,461	$58,000	83.5%	$0	Higher overhead raises the hurdle, but the better margin helps keep the line reachable.

What breaks the auction house break-even plan?

Stress test

The plan is sensitive to small misses in sold-through value and fee load. A 10% revenue drop, a 5-point margin hit, or 10% more fixed commitments can push break-even up fast and erase the cushion.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$613K	$0 cushion	No cushion at the target line.
Revenue shortfall	Revenue runs 10% below plan.	$613K	$50K gap	A small top-line miss quickly hits cash.
Fixed-cost pressure	Fixed commitments rise 10%.	$674K	$61K gap	Adding payroll or overhead too early raises the floor.
Margin pressure	Variable expenses rise 5 percentage points.	$653K	$40K gap	Higher processing or logistics costs cut contribution fast.
Combined pressure	Revenue falls 10%, margin drops 5 points, and fixed commitments rise 10%.	$740K	$127K gap	Weak consignor flow plus higher costs can break the plan.

What should you verify before you sign the lease and hire for an auction house?

Founder checklist

Don’t sign the lease or add headcount until the seller and buyer pipelines look real. Year 1 spends $50K on seller marketing and $75K on buyer marketing, and the model still needs $619K of cash at the Month 7 low point.

1Consignor Pipeline100 sellers

Verify the seller list can produce about 100 new sellers in Year 1 before you lock the lease, because weak consignor flow leaves the room empty and pushes fixed costs onto too few lots.

2Buyer Demand1,000 buyers

Confirm the Year 1 buyer budget can bring in roughly 1,000 buyers, since auction volume depends on enough bidders to keep lots competitive from launch.

3Margin Stack18.5% var.

Check that commission plus subscriptions can cover the 18.5% variable cost stack from processing, appraisal, logistics, ads, and support before you scale event volume.

4Fixed Load$8.3K/mo

Keep rent, hosting, software, legal, admin, insurance, and utilities near this monthly floor before you add space or tools.

5Payroll Ramp$31.3K/mo

Hold Year 1 payroll near this level and delay the operations and design hires until demand supports them, because the wage base steps up after Month 13 and Month 25.

6Cash Runway$619K

Keep cash above the Month 7 minimum need, and include the $255K launch capex for platform build, equipment, security, legal setup, and auction software in the reserve plan.