Smile Bar Break-Even Analysis: About $297K Monthly Revenue

Fixed costs $18.1K/mo Base monthly load

Contribution margin 84% After variable costs

Break-even revenue $21.7K/mo Monthly target

Break-even timing Month 4 Launch ramp

Break-even calculator

Test whether monthly revenue covers variable spend and the fixed cost base, then see how close the business is to break-even.

Lean Base Full

Monthly revenue Revenue sets the cash pool that pays variable and fixed costs each month. $ Slow month Busy month Variable expenses Include costs that rise with each visit, like supplies, marketing, and card fees. $ Tighter spend Higher spend

Money available to cover fixed costs $60,635 $71,828 revenue - $11,193 variable expenses

Margin ratio

84%

Covers fixed costs

Yes

Fixed monthly costs Use the monthly cost base that stays on even when visits dip. $ Lean base Heavier base

Break-even chart Revenue Total costs

Which teeth whitening studio expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if each expense follows the right behavior. Treat rent as stable, supplies and card fees as visit-linked, and payroll as capacity-based so Month 4 break-even isn’t overstated.

Expense	Cost	Break-Even Treatment	Common Mistake
Studio rent	Fixed	Use $5,500 per month from Month 1 through Month 60, regardless of daily visits.	Spreading rent per appointment and making break-even look easier at higher volume.
Utilities	Semi-fixed	Start with $850 per month, then review when hours, lamps, or treatment rooms expand.	Modeling utilities as purely variable with each appointment.
Cleaning services	Semi-fixed	Use $500 per month until visit count or room turnover requires another cleaning step.	Leaving cleaning flat after traffic rises from 18 to 38 visits per day.
Whitening treatment supplies	Variable	Model as a percent of revenue: 8.0% in the first year, improving to 6.0% in the mature year.	Treating gels, trays, and consumables as a fixed monthly supply budget.
Marketing and promotions	Variable	Model at 6.0% of revenue in the first year, declining to 4.0% as repeat visits improve.	Locking marketing at one monthly dollar amount while sales volume changes.
Credit card processing fees	Variable	Apply 2.5% of revenue because fees rise directly with paid appointments and retail sales.	Forgetting card fees when calculating contribution margin per visit.
Manager and lead technician payroll	Semi-fixed	Include base staffing for the studio: $65,000 manager salary and $55,000 lead technician salary annually.	Treating all payroll as appointment-level expense instead of base operating capacity.
Extra technician coverage	Semi-variable	Increase technician capacity as volume grows from 1.0 FTE in the first year to 3.0 FTE in the mature year.	Holding labor flat while visits rise from 18 to 38 per day.

How does break-even change as bookings move from a lean opening to fuller capacity?

Scenario table

Break-even moves fast with visit volume because revenue per visit is high while rent and payroll stay mostly fixed. At 8 visits a day, the cushion is thin; by Year 3 volume, each extra booking spreads overhead across more sales.

Planning estimates only; actual break-even will move with fill rate, pricing, and staffing mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean opening case	$31.9K	$5.3K	$24.8K	83.5%	$1.9K	Very thin cushion; small demand dips can push it under break-even.
Base Year 1 case	$71.8K	$11.9K	$24.8K	83.5%	$35.2K	Healthy cushion; the opening-year volume clears fixed costs with room left.
Full Year 3 case	$133.2K	$19.3K	$30.8K	85.5%	$83.1K	Strong cushion; higher utilization covers added payroll and rent with ease.

What would push the studio back toward break-even?

Stress test

The break-even line gets tight first when bookings slow, then when payroll or promo spend rises. In the first-year plan, the studio still has room, but a 25% drop in visits or a 10% cost bump cuts that cushion fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change from the Year 1 plan.	$297K	$421K cushion	Healthy room above break-even.
Revenue shortfall	Visits drop 25% from the base plan.	$297K	$242K cushion	Still above break-even, but bookings matter.
Fixed-cost increase	Fixed costs rise 10% across the studio.	$326K	$392K cushion	Higher overhead raises the break-even line.
Margin pressure	Variable expenses rise from 16.5% to 21.5%.	$316K	$402K cushion	Promo and card fees eat into margin fast.
Combined pressure	Visits drop 25%, variable expenses rise to 21.5%, and fixed costs rise 10%.	$389K	$150K cushion	Thin cushion if hiring and spend move too early.

Can this whitening studio clear break-even before you sign the lease?

Founder checklist

Here’s the quick math: Year 1 revenue per visit is about $157, contribution margin is 83.5%, and fixed monthly load is about $24.8K. That means you need about 189 visits a month before you sign the lease or add more payroll.

1Visit base189/mo

Verify booked visits stay above 189 a month before you commit, because that is the break-even volume at the current price mix and cost base.

2Ticket math$157/visit

Check that the Year 1 mix plus $18 of retail or package sales really gets you to about $157 per visit, or the break-even target moves up fast.

3Burn rate$24.8K/mo

Test the full monthly burn, including rent, utilities, insurance, software, cleaning, accounting, repairs, and payroll, because this is the load the studio must cover every month.

4Staffing ramp4.0 FTE

Hold the first-year staffing plan at 4.0 FTE and only add more technician time if weekly chair use stays near plan, or payroll will outrun demand.

5Cash cushion$836K

Protect cash for the Month 2 low point, since the model needs about $836K at minimum and about $104.5K of capex hits before revenue can carry the site.

6Launch timingMonth 4

Delay noncritical inventory and heavier marketing if appointment volume slips, because the model reaches breakeven in Month 4 and needs demand to show up on time.