Business Cash Flow Calculator

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Calculate your operating cash flow, free cash flow, and cash runway — the metrics buyers, lenders, and investors actually use to evaluate a business.

Business Cash Flow Calculator

Calculate operating cash flow, free cash flow, and cash runway — the metrics that matter most in M&A, lending, and business health assessment.

Earnings before interest, taxes, depreciation & amortization
Equipment purchases, vehicle fleet, improvements
Increase in AR/inventory (positive = cash out)

Cash Flow Analysis

EBITDA
Operating Cash Flow
Free Cash Flow
FCF Margin
Cash Runway (at current burn)
EBITDA Multiple Implied (5x)
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Understanding Business Cash Flow

Revenue and profit tell part of the story. Cash flow tells the rest. A profitable business can still fail if cash flow is poorly managed — and a business with strong free cash flow is dramatically more valuable and easier to sell than one that isn't.

EBITDA vs. Free Cash Flow
EBITDA is the starting point — it approximates operating cash flow before financing and accounting decisions. Free cash flow (FCF) takes it further: it subtracts interest, taxes, working capital changes, and capital expenditures. FCF is the cash the business actually generates for owners and debt service.
Why FCF Matters More Than Revenue
Revenue is vanity, profit is sanity, cash flow is reality. A business can have strong revenue and reported profit but generate minimal free cash flow due to high capital requirements, rapid growth consuming working capital, or heavy debt service. Buyers and lenders care most about FCF and DSCR, not top-line revenue.
Capital Expenditure Impact
CapEx (equipment, vehicles, technology) reduces free cash flow in the year of purchase. High-CapEx businesses (manufacturing, heavy equipment) generate less free cash flow for a given EBITDA than low-CapEx businesses (professional services, SaaS). This is why EBITDA multiples vary so much by industry.
Working Capital Requirements
Working capital = current assets minus current liabilities. Growing businesses often consume cash even when profitable — because receivables and inventory grow faster than payables. Understanding your working capital cycle is critical for planning growth and avoiding cash crunches despite strong revenue.
Cash Runway and Burn Rate
Cash runway = cash on hand ÷ monthly burn rate. A business with 6+ months of runway has breathing room. Under 3 months is a danger zone. For businesses generating positive free cash flow, runway is theoretically infinite — but maintaining a cash reserve of 2–3 months of overhead is still prudent management.
Cash Flow and Business Value
Businesses with strong, predictable free cash flow are worth more — and easier to finance — than those with volatile or capital-intensive cash flow. Improving your FCF margin by even 2–3 percentage points before a sale can meaningfully increase your enterprise value and expand your buyer pool.

Business Cash Flow FAQ

EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) is a measure of operating profitability. Free cash flow takes EBITDA and subtracts actual cash outflows: interest paid, taxes paid, capital expenditures, and working capital changes. FCF is what's actually available to distribute to owners or service debt.

EBITDA is easier to calculate consistently across businesses and strips out financing decisions (interest) and accounting choices (depreciation). Lenders use EBITDA for initial sizing, then use actual debt service coverage (DSCR) to stress-test the cash flow. FCF is more accurate but varies significantly based on capital expenditure timing and working capital cycles.

Five levers: increase revenue without proportional cost increases (operating leverage), reduce capital expenditure requirements (asset-light model or better utilization), collect receivables faster (reduce AR days outstanding), extend payables without penalty (negotiate terms with vendors), and reduce working capital requirements through inventory management and process improvement.

It varies by industry. Service businesses (pest control, fire protection, professional services) can achieve FCF margins of 10–20%. SaaS companies 15–25%. Manufacturing and construction often see 5–10%. The key benchmark is your industry — and whether your margin is above or below the average for comparable businesses.

Directly. Businesses with strong, predictable FCF command higher EBITDA multiples because buyers can underwrite the acquisition with more confidence. A business with lumpy or highly capital-intensive cash flow requires more buyer diligence and typically trades at a discount to peers. Improving FCF before a sale is one of the most impactful preparation steps an owner can take.