Tax Preparation Service Break-Even Analysis: $348K/Month Target

Break-Even Metric Cards

Fixed costs $8.3K/mo Base overhead

Contribution margin 73.2% After variable costs

Break-even revenue $34.8K/mo Monthly target

Break-even timing Month 8 Model break-even

Break-Even Calculator

Break-even calculator

Test how monthly revenue, variable spend, and fixed costs interact in a tax preparation service.

Lean Base Full

Monthly revenue This is the cash coming in before direct costs. $ Low sales High sales Variable expenses Include marketing, software, fees, and other costs that rise with sales. $ Lean costs High costs

Money available to cover fixed costs $21,230 $29,000 revenue - $7,770 variable expenses

Margin ratio

73%

Covers fixed costs

$4,237 short

Fixed monthly costs This is the monthly cost base break-even has to cover. $ Light overhead Heavy overhead

Break-even chart Revenue Total costs

Which tax preparation service expenses are fixed and which move with sales?

Cost classification

Break-even is reliable only when rent, software, marketing, card fees, and staffing are treated by behavior. Put fixed overhead in the base, tie variable items to revenue, and step staffing only when booked demand supports it.

Expense	Cost	Break-Even Treatment	Common Mistake
Office Rent	Fixed	Include $4,500/month in monthly overhead from Month 1 through Month 60.	Treating the lease as flexible when revenue is seasonal.
Utilities & Internet	Fixed	Include $450/month even in slower filing periods.	Ignoring off-season office and internet use.
Insurance Premiums	Fixed	Include $850/month as recurring protection for professional risk.	Excluding coverage needed before volume scales.
Legal & Accounting Services	Fixed	Include $1,200/month as compliance and advisory support.	Cutting compliance support too early to show break-even.
CRM & Business Software	Fixed	Include $400/month for client workflow, follow-ups, and records.	Omitting tools that keep returns moving.
Tax Software Licensing & Subscriptions	Variable	Model at 8.5% of revenue in the first year, then reduce per the forecast.	Treating all software spend as fixed overhead.
Marketing & Client Acquisition	Variable	Use 12.0% of revenue in the first year and check against $180 CAC.	Double-counting paid acquisition in both CAC and revenue percentage.
Administrative Assistant	Semi-fixed	Start with 0.5 FTE at a $42,000 annual salary in the first year.	Scaling support staff before booked client volume requires it.

How does break-even shift from a lean solo tax prep setup to a base office and a fuller staffed model?

Scenario table

Break-even rises as staff and overhead increase, even when the margin improves. The lean setup is cheapest to carry, but the fuller setup needs much more monthly revenue to stay above water.

These are planning assumptions, not guarantees; actual break-even will move with client mix, pricing, and staffing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean solo tax prep setup	$250K	$67K	$183K	73.2%	$0	Lowest cash load, but the margin still needs steady booked work.
Base small-office tax prep setup	$348K	$93K	$255K	73.3%	$0	Break-even is tighter here, so demand has to stay consistent.
Fuller staffed tax prep setup	$602K	$129K	$473K	78.6%	$0	Higher margin helps, but only if booked demand fills the added capacity.

What breaks the break-even plan for a tax preparation service?

Stress test

Base case revenue is about $348K against $255K of fixed costs, with a 73.2% contribution margin. A 10% revenue slip, 10% higher fixed costs, or 5 more points of variable expense can turn a thin cushion into a $26K to $67K gap.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$348,361	$361 gap	The plan is basically at break-even.
Revenue shortfall	Revenue falls 10% from the base plan.	$348,361	$25.5K gap	Slower intake quickly opens a mid-five-figure hole.
Fixed-cost increase	Fixed costs rise 10% from $255K.	$383,197	$35.2K gap	Lease or overhead creep pushes the plan out of balance.
Margin pressure	Variable expenses rise 5 points, cutting margin to 68.2%.	$373,900	$25.9K gap	Higher CAC or contractor overruns eat the cushion.
Combined pressure	Revenue falls 10%, fixed costs rise 10%, and margin falls to 68.2%.	$411,437	$67K gap	Three small misses stack into a large gap.

Can you prove the tax pipeline, cash, and staffing before you sign the lease and hire ahead of tax season?

Founder checklist

Don’t lock in the office or extra payroll until booked work can cover about 140 returns a month and the $104K launch build is funded separately from monthly break-even. Keep Year 1 marketing near $48K, treat the $4,500 rent as fixed, and protect cash through Month 8.

1Demand Proof140 returns/mo

Verify the booked pipeline can support about 140 returns a month before you commit to fixed overhead.

2Fixed Load$8.3K/mo

Make sure the $4,500 rent and the rest of the fixed base stay supportable, since these costs do not move with slow months.

3Margin Check73.2% CM

Confirm pricing still leaves room after 12.0% COGS and 14.8% variable costs, because that margin has to fund wages and rent.

4Staffing Ramp2.5 FTE

Keep the opening team tied to booked tax, bookkeeping, and advisory work, and add payroll only when off-season hours fill the gap.

5Cash Runway$778K

Protect the cash trough through Month 8, because the model’s minimum cash need hits $778K before breakeven.

6Launch Demand$180 CAC

Keep Year 1 marketing near $48K unless customer acquisition cost drops below $180, or acquisition will outrun payback.