Online Bank Break-Even Analysis: About $180K Monthly Revenue

Fixed costs $154.5K/mo Base monthly burn

Contribution margin 86% Keeps after variable

Break-even revenue $179.7K/mo Revenue to cover

Break-even timing Month 17 Model turns positive

Break-even calculator

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

Lean Base Full

Monthly revenue Revenue is the pool that covers variable costs and leaves margin for fixed costs. $ Early launch Mature scale Variable expenses These are direct costs that rise as the bank books more business. $ Tight cost Heavy cost

Money available to cover fixed costs $283,083 $756,417 revenue - $473,333 variable expenses

Margin ratio

37%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base that contribution margin has to cover. $ Lean team Larger team

Break-even chart Revenue Total costs

Which expenses are fixed and which move with volume for an internet-only bank?

Cost classification

Break-even is more reliable when fixed coverage needs stay separate from volume-driven spend. Here, Month 17 break-even depends on treating platform, compliance, and core staffing as capacity commitments, not as costs that disappear when loan volume slows.

Expense	Cost	Break-Even Treatment	Common Mistake
Cloud Hosting & Infrastructure	Fixed	Carry $15,000 per month in the fixed overhead base from Month 1 through Month 60.	Scaling it with deposits or loan balances too early.
Software Licenses & APIs	Fixed	Include $10,000 per month before calculating contribution margin.	Treating required platform access as optional usage spend.
Regulatory Compliance & Legal Retainer	Fixed	Model $12,000 per month as fixed coverage needed before break-even.	Treating compliance as fully variable with customer count.
Cybersecurity Services	Fixed	Hold $8,000 per month in fixed operating expense across the planning range.	Reducing fraud and security tools when volume dips.
Federal Deposit Insurance Corporation (FDIC) insurance fees	Fixed	Use the modeled $3,000 per month as fixed overhead for break-even.	Excluding deposit-related insurance from monthly coverage needs.
Card Interchange Fees Expense	Variable	Apply 6.0% in the first year against relevant transaction revenue or volume.	Budgeting it as a flat line while card usage grows.
Customer Acquisition Costs	Variable	Apply 8.0% in the first year as volume-linked growth spend.	Calling all marketing fixed and overstating contribution margin.
Customer Support Specialist staffing	Semi-fixed	Step payroll up as support capacity grows from 2 FTEs in Year 1 to 20 FTEs in Year 5.	Treating support as fully variable per account or loan.

How do lean, base, and full online bank scenarios change break-even risk?

Scenario table

As revenue scales, fixed costs rise slower than interest income, so the CM ratio, or share left after variable costs, stretches farther. That leaves the lean case underwater, the base case at break-even by Month 17, and the full case with a wide cushion.

Planning assumptions only; actual results can shift with funding mix, deposit costs, and loan growth.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch	$124k	$17.3k	$154.5k	86%	-$48.1k	Still below break-even; cash burn stays high.
Base case	$623k	$77.8k	$212.8k	87.5%	$332.1k	Break-even lands at Month 17, so funding must cover the ramp.
Full scale	$14.6M	$1.17M	$424.5k	92%	$13.0M	Strong cushion; scale absorbs overhead fast.

What breaks break-even for this online bank?

Stress test

The plan only works if monthly revenue stays near $180,000 and fixed costs hold at $154,500. A 15% revenue miss, a 10% cost overrun, or a 5-point margin drop each opens a gap fast; together they widen it sharply.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$180,000	$300 cushion	At plan, the margin is thin.
Revenue shortfall	Monthly revenue falls 15% to $153,000.	$180,000	$22,920 gap	Slower deposits or lower fee income open a cash hole.
Fixed-cost pressure	Fixed costs rise 10% to $169,950.	$197,616	$15,150 gap	Compliance, support, or cloud overruns erase the cushion.
Margin pressure	Variable expenses rise from 14% to 19%.	$190,741	$8,700 gap	Fraud loss or higher card fees cut room fast.
Combined pressure	Revenue drops to $153,000, fixed costs hit $169,950, and margin falls to 81%.	$209,815	$46,020 gap	Two misses together turn break-even into a real loss.

What should you verify before you commit to full-scale spend on this online bank?

Founder checklist

Verify the model can fund the $925K launch build, hold $46.3M in minimum cash at Month 12, and still reach breakeven by Month 17. If uptime, compliance, or fraud checks slip, delay paid growth and vendor lock-in.

1Loan demandY1 $12.5M

Verify you can originate the Year 1 loan mix of $12.5M across personal, auto, small business, mortgage, and card loans, because the lending income plan depends on that volume.

2Fixed cost$154.5K/mo

Verify fixed overhead stays at $154.5K per month from Month 1, because that burn rate sets the cash needed before breakeven.

3Contribution86% CM

Verify card interchange fees and customer acquisition costs stay at 14.0% combined, so contribution margin holds at 86% before fixed costs.

4Staffing ramp8 FTE

Verify the Year 1 team can stay at 8 FTE across compliance, engineering, support, and marketing, because slower onboarding or weak controls will push costs up fast.

5Cash runway$46.3M

Verify cash stays above the $46.3M minimum at Month 12, because that is the low point before the model reaches breakeven.

6Paid growthMonth 17

Verify the first paid-acquisition channel can hold the 8.0% customer acquisition cost assumption before you scale spend, and do not lock in volume until uptime, compliance, and fraud checks pass.