Agency Financial Runway Calculator
An agency financial runway calculator tells you how many months your agency can operate at current expense levels if no new revenue comes in — and how much of your fixed costs your retainer book already covers. Enter your cash balance, what the business costs to run each month, your confirmed recurring revenue, and what you expect in project billing.
Agency Financial Runway Calculator
How many months your agency can operate at current burn, and how stable your retainer base is.
Monthly expenses
Monthly revenue
Cash-flow positive this month
+$1,200
Monthly surplus. Reserve doubles in ~23.3 months at this pace.
Retainer coverage ratio
55.2%
Of your fixed costs are covered by confirmed recurring retainer revenue.
Stable
Most fixed costs are locked in. A slow project month won't threaten operations.
Retainers-only scenario
If no new project work arrives this month, runway on retainers + cash alone: 3.3 months.
Know your runway number before you need it.
Ascend tracks time and billing against every client record. Invoicing from logged hours means revenue visibility doesn't require a separate reconciliation. Free plan included.
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How to read your result
Runway months is the core number: how long the agency can survive at current burn if everything else stays flat and no new work is signed. It is a worst-case baseline, not a forecast — but worst-case baselines are exactly what stress-test planning needs.
Retainer coverage ratio is the stability measure. It answers a different question: not how long you survive without new work, but how exposed you are to a slow project month. An agency where retainers cover 80% of fixed costs can have a flat project month and feel barely a tremor.
Monthly burn shows whether cash is going up or down right now. A negative burn (cash-flow positive) means this month's revenue exceeds this month's expenses — the agency is building its reserve, not drawing it down.
How financial runway is calculated
Monthly burn = total monthly expenses − total monthly revenue. If burn is positive (you're spending more than you earn), runway = cash balance ÷ monthly burn. Retainer coverage ratio = monthly retainer revenue ÷ monthly fixed costs. Both formulas assume the inputs stay constant, which they won't — the point is a clear baseline.
The calculator also shows a retainers-only scenario: how long you survive if project revenue stops entirely. That second figure — retainers-only runway — is the founder's sleep-at-night number.
A worked example
A three-person UX studio. Cash balance: $28,000. Monthly fixed costs: $14,500 (payroll, rent, software). Monthly variable costs: $2,000 (freelance illustration on one project). Confirmed retainer revenue: $8,000. Expected project billing: $6,500. Outstanding receivables: $3,200.
- Monthly revenue: $8,000 + $6,500 + $3,200 = $17,700
- Monthly expenses: $16,500
- Monthly surplus: $1,200 — cash-flow positive
- Retainer coverage ratio: $8,000 ÷ $14,500 = 55% — "Stable"
- Retainers-only runway: $28,000 ÷ ($16,500 − $8,000) = ~3.3 months
That retainers-only figure — roughly three months if all project revenue disappeared — is the number that matters most. The studio looks fine today; the question is what happens in a slow patch.
Retainer mix is the engine of stable growth
Most agency owners watch total revenue. The more informative number is what fraction of that revenue is locked in before the month starts. Project revenue can be a $25,000 month or a $4,000 month depending on whether a proposal closes or a client delays. Retainer revenue is $8,000 either way.
The agency financial runway calculator surfaces this as a ratio rather than a vibe. A studio with $14,500 in fixed costs and $8,000 in retainers knows it needs $6,500 in project work to break even. A studio with the same fixed costs and $12,000 in retainers only needs $2,500. The numbers are the same size; the risk is completely different.
To understand how unbilled WIP affects your actual cash position, pair this with the WIP unbilled revenue calculator.
Frequently asked questions
How do I calculate my agency's financial runway?+
Divide your current cash balance by your monthly burn rate (monthly expenses minus monthly revenue). The result is how many months the agency can operate at current expense levels without adding new revenue. If you are currently cash-flow positive, runway is indefinite — focus on the retainer coverage ratio instead.
What is a healthy financial runway for an agency?+
Agency-finance guidance commonly treats six months or more of runway as a comfortable operating cushion. Under three months warrants active pipeline management; under one month is urgent.
What is the retainer coverage ratio?+
The fraction of your fixed monthly costs covered by confirmed recurring retainer revenue. An agency with a retainer coverage ratio above 80% can weather a slow project month without a cash-flow crisis. Below 20%, almost all fixed costs depend on project revenue landing on time every month.
Should I include project revenue in my runway calculation?+
Include your best estimate, but also run the calculation with project revenue set to zero. The zero-project scenario shows your true downside: how long you survive on retainers and cash reserves alone. That number is what matters in a slow patch.
How does retainer mix affect financial stability?+
Retainers are revenue locked in before the month starts. Project revenue is not. An agency that covers most of its fixed costs with retainers is structurally more stable than one of the same size that depends entirely on project billing landing on time each month.
What should I do if my runway is under three months?+
Three actions in parallel: invoice all outstanding WIP and chase overdue receivables (fastest cash), accelerate any near-close proposals, and review whether any fixed costs can be reduced or deferred short-term. Don't wait for a single large deal — spread the recovery across all three.
What costs should I include in monthly fixed costs?+
All costs that run whether or not you have active client work: payroll, rent, software subscriptions, insurance, loan repayments, and any other recurring obligations. Variable costs — subcontractors, job-specific expenses — go in the variable costs field.
Related tool
WIP / Unbilled Revenue Calculator
Collecting outstanding WIP is the fastest way to extend runway. See how much earned revenue your agency has yet to invoice.
Know your runway number before you need it.
Ascend tracks time and billing against every client record. Invoicing from logged hours means revenue visibility doesn't require a separate spreadsheet reconciliation. The free tier covers one client end to end.
Start with Ascend free