Social Media Growth Hacking Service Break-Even: $118K/Month

Fixed costs $74.0K/mo Year 1 base

Contribution margin 71% After variable costs

Break-even revenue $104.2K/mo Revenue target

Break-even timing Month 7 Crossover point

Break-even calculator

Use this calculator to test monthly revenue against variable and fixed costs to see where break-even lands.

Lean Base Full

Monthly revenue Revenue is the pool that covers variable costs and then fixed overhead. $ Low sales High sales Variable expenses These are direct costs tied to service delivery and client volume. $ Low cost High cost

Money available to cover fixed costs $377,524 $510,167 revenue - $132,643 variable expenses

Margin ratio

74%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead base break-even must cover. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which agency expenses stay fixed, and which move with revenue?

Cost classification

Break-even gets reliable when monthly overhead stays separate from revenue-linked delivery spend. In the first year, fixed overhead is $15,200 per month before payroll, while Year 1 variable delivery and sales items run 29% of revenue.

Expense	Cost	Break-Even Treatment	Common Mistake
Remote Infrastructure and Cloud Hosting	Fixed	Include $2,500 as monthly overhead from Month 1 through Month 60.	Treating it as client-level spend.
MarTech Stack Subscriptions	Fixed	Include $5,000 as monthly overhead before calculating contribution margin.	Spreading it only across active clients.
Professional Liability Insurance	Fixed	Include $1,200 as recurring monthly overhead in break-even.	Excluding it from break-even.
Legal and Accounting Retainer	Fixed	Include $3,000 as monthly overhead, not setup spend.	Treating it as one-time setup.
Influencer Payouts and Creator Fees	Variable	Model at 12% of first-year revenue, then update by year.	Treating creator spend as fixed.
Content Production Subcontractors	Variable	Model at 8% of first-year revenue for delivery workload.	Underpricing editing and production load.
Sales Commissions	Variable	Deduct 4% of revenue before calculating contribution margin.	Excluding acquisition pay from contribution margin.
Delivery Staff Payroll	Semi-fixed	Plan capacity in hiring steps; first-year wages total $58,750 monthly.	Hiring before retained revenue covers capacity.

How does break-even change across lean, base, and full service models for this agency?

Scenario table

Lean stays close to break-even because payroll is thin and contractor use is high. As you add staff and custom work, fixed costs rise faster than margin, so the monthly revenue needed to cover overhead jumps.

Planning scenarios only; actual break-even will move with pricing, retention, and labor mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Founder-deferred lean case	$97k	$28k	$69k	71%	$0	Solo validation needs only a small client set, but a slow sales month creates cash pressure fast.
Staffed launch base case	$118k	$34k	$84k	71%	$0	This is the tightest balance point; you need steady retainers just to hold even.
Scaled fulfillment full case	$347k	$80k	$267k	77%	$0	Scaled fulfillment brings a wider margin cushion, but it only works once the client book is deep.

What breaks the break-even plan for this agency?

Stress test

The base case has a thin cushion: $137.8k monthly revenue versus a $118.3k break-even line. A 15% sales miss or a 5-point margin slip can wipe most of that buffer before retained volume stabilizes.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; revenue holds at $137.8k and contribution margin stays at 71%.	$118.3k	$19.5k cushion	The base plan works, but the buffer is not large.
Revenue shortfall	Revenue falls 15% to about $117.1k, with variable expense still at 29%.	$118.3k	$1.2k gap	Client churn would erase the cushion.
Fixed-cost increase	Fixed costs rise 10% to about $92.4k, while margin holds at 71%.	$130.1k	$7.7k cushion	Tool overages or contractor adds tighten the cushion.
Margin pressure	Variable expenses rise from 29% to 34%, cutting contribution margin to 66%.	$127.3k	$10.5k cushion	Higher creator and subcontractor spend pushes break-even up.
Combined pressure	Revenue drops 15%, fixed costs rise 10%, and variable expenses rise to 34%.	$140.0k	$22.9k gap	Slower onboarding and churn can turn the month negative.

What must this agency verify before it commits to payroll, tools, and outreach spend?

Founder checklist

Only if the agency can sign at least $118k in monthly retainers and keep the Year 1 package mix close to plan. If the mix slips or cash falls toward the $623k Month 6 low point, break-even gets pushed out fast.

1Retainer Floor$118k/mo

Verify signed retainers hit this base-case level before you add recurring spend, because the model only works with enough monthly revenue in hand.

2Client Value$5.74k/mo

Check that the Year 1 mix of Growth, Scale, Enterprise, and Campaign work really averages about this much per active client, or the client count needed for break-even rises.

3Contribution Margin71% CM

Keep creator fees, subcontractors, ad management fees, and sales commissions near 29% of revenue so the contribution margin stays strong enough to absorb fixed costs.

4Capacity Map20/40/80/30 hrs

Match delivery load to the package hours for Growth Retainer, Scale Retainer, Enterprise Custom, and Campaign Surge so service quality holds before you hire more.

5Payroll Load$73.9k/mo

Keep the modeled $15k monthly CEO pay inside this fixed load and delay extra staff until retained revenue can cover the rest of the semi-fixed payroll and software stack.

6Runway Check$623k in Month 6

Hold enough cash for the Month 6 low point and pace outreach to the Month 7 break-even target so reporting, account management, and contractor coverage do not fall behind demand.