A staffed self-publishing assistance service reaches break-even at about $36,100 in monthly revenue Here’s the quick math: $26,000 fixed monthly costs divided by a 72% contribution margin equals roughly $36,100 The model shows break-even in Month 5, with Year 1 revenue of $880,000 and EBITDA of $285,000 Actual break-even depends on package mix, freelance contractor usage, referral commissions, and lead flow
Fixed costs$22.2K/mo
Staff plus tools
Contribution margin72%
After variable costs
Break-even revenue$30.9K/mo
Revenue target
Break-even timingMonth 5
Launch ramp point
Break-even calculator
Test how monthly revenue, direct costs, and fixed overhead shape break-even for a self-publishing assistance service.
Money available to cover fixed costs$52,800
$73,333 revenue - $20,533 variable expenses
Margin ratio
72%
Covers fixed costs
Yes
Break-even chart Revenue Total costs
Which self-publishing assistance expenses are fixed, and which move with sales?
Cost classification
Break-even is only useful if delivery labor and fees move with revenue while admin tools stay fixed. In the first year, variable items total 28% of revenue before fixed overhead, so misclassifying one line can move the Month 5 break-even point.
Expense
Cost
Break-Even Treatment
Common Mistake
Freelance Contractor Payouts
Variable
Model at 18% of first-year revenue because delivery labor rises with paid author work.
Burying delivery labor in overhead.
Direct Project Software Licensing
Variable
Model at 2% of first-year revenue when tools are tied to active client projects.
Treating per-project tools like subscriptions.
Payment Processing Fees
Variable
Model at 3% of revenue, so each invoice carries transaction drag.
Ignoring payment fees in contribution margin.
Referral and Affiliate Commissions
Variable
Model at 5% of first-year revenue because commissions follow referred sales.
Putting commissions in fixed overhead.
Project Management Software Suite
Fixed
Hold at $450/month for the relevant monthly planning range.
Tying core admin tools to projects.
Marketing Automation Tools
Fixed
Hold at $500/month as a recurring platform expense.
Mixing it with ad spend.
Annual Marketing Budget
Semi-variable
Start with $45,000 in the first year, then connect spend to customer acquisition at $450 CAC.
Assuming every dollar produces clients at $450 CAC.
Salaried Roles
Semi-fixed
Model as staffing steps under the full-time equivalent plan, not as a percent of revenue.
Smoothing headcount instead of adding capacity in steps.
How does break-even shift across lean, base, and full-service setups for this self-publishing support business?
Scenario table
Lean strips out planned salaries, so it shows the lowest-cost path but also the lowest capacity. Base hits Month 5 break-even, and full-service widens the cushion if demand fills the added team.
Planning cases only; actual results will move with mix, pricing, and hiring pace.
Scenario
Monthly Revenue
Variable Costs
Fixed Costs
CM Ratio
Operating Profit
Break-Even Signal
Lean validation setup
$8.6k
$2.4k
$6.2k
72.0%
$0
Any dip below $8.6k turns this negative.
Base staffed plan
$73.3k
$20.5k
$26.0k
72.0%
$26.8k
Month 5 break-even is already built in.
Full-service Year 5 scale
$640.9k
$168.0k
$60.4k
73.8%
$412.5k
Strong cushion, but only if delivery keeps pace.
What breaks the break-even plan if author demand slows, contractor costs rise, or fixed overhead creeps up?
Stress test
Base case covers break-even with $73.3k monthly revenue, 72% contribution margin, and $26k fixed costs. The cushion shrinks fast if paid author projects slow, editor rates rise, or referral commissions stay above 5%.
Stress Case
Changed Assumption
Break-Even Revenue
Revenue Gap
Risk Signal
Current plan
No change: $73,300 monthly revenue, 28% variable expenses, and $26,000 fixed costs.
$36,100
$37,200 cushion
Healthy buffer, but it still needs steady author demand.
Revenue shortfall
Monthly revenue drops 20% to about $58,700.
$36,100
$22,600 cushion
Demand can slip, but the cushion gets much thinner.
Fixed-cost pressure
Fixed costs rise 15% to about $29,900.
$41,500
$31,800 cushion
Headcount or tools creep pushes break-even up fast.
Margin pressure
Variable expenses rise to 33%, cutting contribution margin to 67%.
$38,800
$34,500 cushion
Higher editor rates or referral fees eat margin quickly.
Combined pressure
Revenue falls 40%, variable expenses rise to 33%, and fixed costs rise 15%.
$44,600
$600 gap
The plan is almost flat, so one more miss turns it negative.
What should you verify before you add more payroll and marketing to this self-publishing support service?
Founder checklist
Test paid author demand, pricing, and contractor coverage before you commit to heavier payroll or ad spend. This model can reach Month 5 break-even, but only if CAC stays near $450 and fixed load stays close to $22.2K a month.
1Lead proof$450 CAC
Show you can buy qualified author leads near the Year 1 CAC assumption before you add headcount.
2Margin check72% CM
Price editing at $85, design at $100, and consulting at $150 in Year 1 so the blended contribution margin stays near 72% after direct costs.
3Fixed load$22.2K/mo
Skip lease and inventory plans, but watch the modeled $22.2K monthly fixed load from payroll and overhead because that's the burn you must cover.
4Delivery bench3 roles
Require deposits before heavy contractor work and line up editing, formatting, and design coverage, so the 8.5-hour monthly load does not break turnaround times.
5Cash cushion$826K min
Keep enough cash to get through the Month 2 low, since minimum cash lands at $826K before the model steadies.
6Spend gateMonth 5
Hold extra platform spend until Month 5 break-even is visible, and keep referral commissions near 5% so acquisition stays inside the model.