How do you use this tool?
- Enter your opening cash balance (cash on hand at the start of the period).
- Under Operating Activities, add cash inflows (customer receipts, interest received) and outflows (supplier payments, payroll, taxes paid).
- Under Investing Activities, enter capital expenditures, equipment purchases, or proceeds from asset sales.
- Under Financing Activities, add loan proceeds, loan repayments, and any owner contributions or dividends paid.
- Review the net cash flow summary. Negative total means cash is decreasing; positive means it's growing.
What This Tool Does
The Cash Flow Calculator computes net cash flow across the three standard financial statement categories: operating, investing, and financing activities. It shows whether your business, investment, or project is generating cash or depleting it over a chosen time period.
The output includes a category-by-category breakdown and a closing cash balance. This matches the structure of a formal Statement of Cash Flows (SCF) as defined by US GAAP (ASC 230) and IFRS (IAS 7), making the results immediately useful for accountants, lenders, and investors.
How Does It Work?
Net Cash Flow = Operating Cash Flow + Investing Cash Flow + Financing Cash Flow
Operating Cash Flow (Direct Method):
= Cash received from customers
− Cash paid to suppliers
− Cash paid to employees (payroll)
− Interest paid
− Income taxes paid
+ Other operating cash receipts
Investing Cash Flow:
= Proceeds from asset sales
− Capital expenditures (CapEx)
− Acquisitions
− Loans made to others
+ Principal collected on loans made
Financing Cash Flow:
= Loan proceeds received
+ Owner/shareholder contributions
− Loan repayments (principal only)
− Dividends or distributions paid
Closing Cash Balance:
= Opening Cash Balance + Net Cash FlowWhat Are Cash Flow Health Indicators?
| Metric | Formula | Healthy Range |
|---|---|---|
| Operating CF Ratio | Operating CF ÷ Current Liabilities | ≥ 1.0 |
| Free Cash Flow | Operating CF − CapEx | Positive |
| Cash Flow Margin | Operating CF ÷ Revenue × 100 | Industry-dependent (10–25% for most) |
| CF Coverage Ratio | Operating CF ÷ Total Debt Service | ≥ 1.25 |
What Is the Difference Between Operating, Investing, and Financing?
| Category | Typical Inflows | Typical Outflows |
|---|---|---|
| Operating | Customer receipts, interest income | Payroll, rent, suppliers, taxes |
| Investing | Asset sale proceeds, loan collections | Equipment, property, acquisitions |
| Financing | Bank loans, equity raises | Debt repayment, dividends |
What Are Common Use Cases?
Small business cash planning. A restaurant owner can model monthly cash flow — seasonally high summer receipts against fixed rent and payroll — to decide whether they need a line of credit before a slow winter season.
Real estate investment analysis. Enter monthly rent income, mortgage payments, insurance, property tax, maintenance, and vacancy allowances to calculate the actual cash yield on a rental property — not just the cap rate.
Startup runway calculation. A pre-revenue startup can enter investor funding (financing inflow) and monthly operating burn (payroll, software, office) to calculate how many months until cash hits zero.
Evaluating a capital expenditure. Before buying $200,000 of manufacturing equipment, model the immediate investing outflow against the projected increase in operating cash flow over 3–5 years.
Loan application support. Lenders typically require 1–3 years of cash flow statements. Use this tool to organize your figures and verify that your operating cash flow comfortably covers proposed debt service payments (target: CF Coverage ≥ 1.25×).
Frequently Asked Questions
What is cash flow and why does it matter? Cash flow tracks the movement of actual dollars in and out of your business during a period. Unlike profit, cash flow can’t be manipulated by accounting choices like depreciation schedules or accrual timing — it shows what actually happened. Many businesses that look profitable on paper fail because they run out of cash waiting for customers to pay.
What is the difference between cash flow and profit? Profit is computed under accrual accounting: revenue is recognized when earned, expenses when incurred, regardless of payment timing. A company invoices $100,000 in December but doesn’t collect until February — that’s $100,000 of profit in December but zero cash flow from it until February. Cash flow only counts when money actually changes hands.
What are the three types of cash flow? Operating cash flow is the cash your core business generates — the most important figure for assessing business health. Investing cash flow reflects capital investments and asset disposals. Financing cash flow shows how you’re funding the business through debt and equity. Sustainable businesses should generate strong positive operating cash flow over time.
What is a healthy cash flow ratio? For the operating cash flow ratio, above 1.0 is healthy — it means you can cover current liabilities with cash from operations alone. For free cash flow (operating CF minus CapEx), any positive figure means the business is self-funding its growth. Cash flow margin above 10% is a strong signal for most industries.
How is this different from a P&L statement? A P&L uses accrual accounting and includes non-cash items like depreciation, amortization, and changes in working capital. A cash flow statement strips all of that out and shows only real dollar movements. Both documents together give a complete picture — the P&L shows earning power, the cash flow statement shows liquidity.
Can I use this for rental property cash flow? Absolutely. Rental properties are ideal for this calculator. Enter monthly rent (operating inflow), then mortgage principal and interest, property management fees (8–12% of rent), insurance, property taxes, maintenance reserve (1% of property value per year is a common rule of thumb), and any vacancy allowance (5–10% of annual rent) as operating outflows. The net figure is your actual cash yield.
Last updated: