Cash Flow Calculator

A cash flow calculator tracks the actual money moving in and out of your business over a period — usually a month or quarter — and shows whether you ended with more or less cash than you started with. Unlike profit, which is an accounting figure that includes invoiced-but-unpaid revenue, cash flow only counts dollars that actually changed hands.

Every business has three cash flow buckets: operating (the core business — sales receipts in, supplier and payroll payments out), investing (asset purchases or sales — equipment, vehicles, acquisitions), and financing (loans, equity, dividends). Tracking all three is what a full statement of cash flows does; this calculator gives you the simple net view across all categories.

A coffee shop tracks September with $15,000 opening cash. Inflows: $48,000 from sales, $2,000 from a small grant. Outflows: $14,000 payroll, $4,500 rent, $9,000 coffee and supplies, $2,500 utilities and insurance, $3,000 loan payment, $1,500 quarterly tax:

• Total inflows: $50,000
• Total outflows: $34,500
• Net cash flow: +$15,500
• Closing balance: $15,000 + $15,500 = $30,500

Even though September was a strong month, October has a $9,000 equipment purchase planned and seasonal sales typically drop 15%. Forecasting forward shows whether the $30,500 buffer is enough to absorb that drop.

• Monthly close — reconcile what hit the bank against what you invoiced and spent on paper.
• Forecasting — project the next 13 weeks to spot cash crunches before payroll lands.
• Loan applications — banks ask for trailing and projected cash flow, not just P&L.
• Big purchase decisions — see whether the closing balance after a $20K equipment buy still covers two months of fixed costs.
• Seasonality planning — retail and tourism businesses use cash flow tracking to build reserves during peak months for slow ones.

• Confusing profit with cash. A $50,000 invoiced sale on net-60 terms doesn't help you make payroll this Friday. Track collections, not just bookings.
• Ignoring loan principal. Loan principal payments hit cash but not the income statement. Forgetting them in cash forecasts is a common shortfall.
• Skipping owner draw. If the owner pulls $5,000/month, that's a cash outflow even if it's not on the P&L as salary.
• Missing tax payments. Quarterly estimated taxes, sales tax remittance, and payroll tax filings are large lumpy outflows that ambush unprepared businesses.
• No category split. Lumping operating, investing, and financing inflows together hides the truth — borrowing money looks the same as earning it on a single-line statement.