A bubble tea shop needs about $425K in monthly break-even revenue under the supplied Year 1 assumptions Here’s the quick math: fixed costs are about $364K/month, variable expenses are 145% of sales, so contribution margin is 855% Break-even revenue equals $364K divided by 855%, or about $425K At the planned Year 1 run rate of about $1443K/month, the shop has about $1018K of monthly revenue cushion before it falls below break-even
Fixed costs$19.3K
Monthly base load
Contribution margin85.5%
After variable costs
Break-even revenue$22.5K
Monthly target
Break-even timingMonth 2
Model breakeven
Break-even calculator
Use this calculator to test monthly revenue, variable expenses, and fixed costs against break-even.
Money available to cover fixed costs$228,627
$267,400 revenue - $38,773 variable expenses
Margin ratio
86%
Covers fixed costs
Yes
Break-even chart Revenue Total costs
Which shop expenses are fixed, and which move with sales?
Cost classification
Break-even gets shaky when rent, payroll, ingredients, and fees are treated the same. Classify each line by how it behaves, so the Month 2 break-even target doesn’t understate the real monthly load.
Expense
Cost
Break-Even Treatment
Common Mistake
Rent & Lease Payments
Fixed
Include the full $5,000/month in fixed overhead.
Treating rent as if it rises and falls with drink volume.
Utilities
Semi-fixed
Include the $1,200/month base load; adjust only when operating scale changes.
Assuming utilities drop in direct proportion to slower cup sales.
Food & Beverage Ingredients
Variable
Reduce contribution margin by 10.0% of first-year revenue.
Ignoring tapioca pearls, tea, milk, toppings, and waste.
Marketing & Promotions
Variable
Apply the first-year 3.0% revenue load before calculating break-even.
Calling promo spend fixed when it is modeled as sales-driven.
Credit Card Processing Fees
Variable
Reduce every card sale by the modeled 1.5% processing fee.
Leaving processor fees out of contribution margin.
General Manager and Head Chef payroll
Fixed
Include the $130,000/year payroll floor before flexible staffing.
Treating all labor as if it can flex down with traffic.
Bartender, Server, Kitchen Staff, and Dishwasher payroll
Semi-variable
Match staffing coverage to traffic while keeping minimum shift coverage.
Hiring ahead of demand and lifting break-even too early.
POS & Software Subscriptions
Fixed
Include the full $250/month in fixed overhead.
Blending software subscriptions into card processing fees.
How does break-even change across lean, base, and full-volume bubble tea shop scenarios?
Scenario table
Higher sales volume and a lower variable-cost share widen the cushion fast. Year 1 tests launch risk, Year 3 checks staffing scale, and Year 5 shows mature capacity.
Planning cases use model-year assumptions, not local rent quotes, tax effects, or financing terms.
Scenario
Monthly Revenue
Variable Costs
Fixed Costs
CM Ratio
Operating Profit
Break-Even Signal
Lean launch case
$1.44M
$209K
$364K
85.5%
$870K
Above break-even, but this is the tightest launch cushion.
Base growth case
$2.77M
$360K
$439K
87.0%
$1.97M
Highlighted case; sales cover fixed costs with room to spare.
Full-volume case
$4.40M
$506K
$514K
88.5%
$3.38M
Strongest cushion, so break-even risk is lowest here.
What pressures push this bubble tea shop past break-even?
Stress test
The base plan has a wide cushion, but weekday traffic, discounting, and early labor can narrow it fast. The biggest squeeze comes from higher variable costs plus a 10% jump in fixed costs.
Stress Case
Changed Assumption
Break-Even Revenue
Revenue Gap
Risk Signal
Current plan
No change in revenue, margin, or fixed costs.
$425K
$1,018K cushion
Healthy cushion, but traffic still has to show up.
Revenue shortfall
Monthly revenue falls 20% to about $1,154K.
$425K
$729K cushion
Still above break-even, but discounting and softer traffic cut room fast.
Fixed-cost pressure
Payroll, rent, and overhead rise 10%.
$468K
$975K cushion
Higher fixed costs need stronger sales to protect profit.
Margin pressure
Ingredients, promotions, and card fees rise from 145% to 195%.
$452K
$991K cushion
Cost creep in variable items eats the cushion first.
Combined pressure
Revenue drops 70% to about $433K, variable load hits 195%, and fixed costs rise 10%.
$500K
$67K gap
This is the break point; the shop runs below break-even.
Can this bubble tea shop reach break-even before you sign the lease?
Founder checklist
Before you sign the lease, test whether the shop can carry the $36.4K monthly fixed load and still break even. The quick read says you need about 38 orders a day at the blended Year 1 ticket, so weak weekday traffic or a slow ramp will break the math fast.
1Launch demand38/day
Verify the shop can sell about 38 orders a day at the blended Year 1 ticket before you lock in rent, because that is the path to break even.
2Traffic proof910/wk
Check that the Year 1 cover forecast totals 910 visits a week, with Friday and Saturday carrying the heaviest load, because the lease only works if traffic is real.
3Fixed load$36.4K/mo
Rent is $5,000 a month, but payroll and overhead push the fixed load to about $36.4K a month, so the lease has to clear that bar.
4Unit margin85.5% CM
Price drinks and snacks so ingredients, card fees, and promotion spend stay near the modeled load; if margin slips, break-even moves out fast.
5Staffing ramp8 FTE
Year 1 staffing equals 1 general manager, 1 head chef, 2 bartenders, 2 servers, 1 kitchen staff, and 1 dishwasher, so test service speed against that labor plan.
6Launch capital$370K / $758K
Reconcile the $370K capex plan with the $758K minimum cash need in Month 2, because payback is 8 months only if you do not overspend on buildout.