Free Cash Flow Calculator
Project monthly business cash inflows, outflows and cash runway in seconds.
Monthly Cash Inflows & Outflows
Cash Flow Breakdown Summary
Cash Flow Calculator & Working Capital Guide for South Africa
The South Africa Cash Flow Calculator models your enterprise monthly liquidity movements, projects ending bank balances in South African Rand (ZAR), and determines your operational cash runway. The tool sums your cash sales, debtor book collections (accounts receivable), and miscellaneous receipts, subtracts all cash disbursements (supplier inventory, staff payroll, commercial rent, utilities, SARS VAT/provisional tax, and debt servicing), and calculates your net operating cash flow to safeguard business solvency.
How to Use the South Africa Cash Flow Calculator
Enter your starting cash reserves across your commercial bank accounts (FNB, Standard Bank, Absa, Nedbank) in Rand (R).
Input expected cash sales and credit customer receivable payments collected within the 30-day forecast period.
Enter inventory restocks, employee payroll, office lease, backup power fuel, SARS tax obligations, and loan repayments.
Review your projected closing cash position and cash runway months to manage working capital proactively.
Understanding South African Working Capital Dynamics
Cash Flow vs Accounting Profit
A business can be profitable on an accrual income statement while running out of physical cash. Profit records revenue when an invoice is issued, whereas cash flow records actual funds deposited in your South African bank account.
What is Cash Runway?
Cash runway represents the number of months your enterprise can continue operating before depleting cash reserves if disbursements exceed collections (Runway = Starting Cash / Monthly Net Burn Rate).
Working Capital Conversion Cycle
The time delay between paying suppliers for inventory and collecting payment from commercial debtors (Days Sales Outstanding DSO). Efficient collection cycles prevent liquidity crises during peak sales growth.
South African Cash Flow Forecasting Sequence
Liquidity forecasting follows standard direct cash flow accounting principles to determine solvency and liquidity buffers.
Total Inflows = Cash Sales + Collections + Other Inflows
Total Outflows = Inventory + Payroll + OPEX + Taxes + Debt
Net Cash Flow = Total Cash Inflows - Total Cash Outflows
Ending Cash Balance = Opening Balance + Net Cash Flow
Net Burn Rate (if Negative) = Outflows - Inflows
Monthly net cash deficit depleted during negative cash cycles.
Cash Runway (Months) = Opening Balance ÷ Monthly Burn Rate
Estimated operating months remaining before cash depletion.
Comprehensive Worked Scenario: Commercial SME in Durban
Consider a commercial wholesale distributor in Durban with an opening bank balance of R 350,000.00 forecasting monthly liquidity movements.
| Cash Flow Component | Calculation Details | Amount (ZAR) |
|---|---|---|
| Starting Cash at Bank (Opening Balance) | Commercial operational account balance | R 350,000.00 |
| Cash Sales (Direct Point of Sale) | Immediate cash payments received | +R 450,000.00 |
| Debtor Book Collections (30-day accounts) | Payments from wholesale trade credit clients | +R 220,000.00 |
| Total Monthly Cash Inflows | Direct Sales + Debtor Collections | +R 670,000.00 |
| Inventory Restocking (Supplier Payments) | Cost of stock and raw materials | -R 280,000.00 |
| Staff Salaries, Wages & PAYE/UIF | Monthly net payroll and statutory remittances | -R 180,000.00 |
| Rent, Power & Generator Inverters | Commercial warehouse lease and Eskom/diesel | -R 65,000.00 |
| SARS VAT & Provisional Tax Installment | Monthly VAT201 return settlement | -R 35,000.00 |
| Bank Vehicle Asset Finance Repayments | Monthly delivery truck loan repayments | -R 20,000.00 |
| Total Monthly Cash Outflows | Sum of operational disbursements | -R 580,000.00 |
| Net Operating Cash Flow | Total Inflows - Total Outflows | +R 90,000.00 |
| Projected Closing Cash Balance | Opening Balance + Net Cash Flow | R 440,000.00 |
Cash Flow Forecasting Assumptions
- Cash Accounting Basis: Forecasts model actual liquid receipts and cleared disbursements rather than accrual billing dates.
- Period Timing: Calculations assume a standard 30-day operating calendar month without extraordinary capital raising.
- Debtor Delays: Assumes debtor collection entries reflect actual cleared payments rather than total outstanding book invoices.
- Client Data Privacy: All financial entries remain local in your browser without cloud storage.
South Africa Working Capital & Financial Governance
| Parameter | Statutory Standard | Regulatory Reference |
|---|---|---|
| Accounting Framework | IFRS for SMEs Statement of Cash Flows (IAS 7) | SAICA Guidelines |
| VAT Settlement Cycle | Category A / B (Bi-monthly) or Category C (Monthly VAT201) | SARS VAT Act 1991 |
| Provisional Tax Timing | 1st Period (August) & 2nd Period (February) settlements | Income Tax Act No. 58 of 1962 |
| Commercial Prime Rate | South African Reserve Bank (SARB) benchmark rate | SARB Monetary Policy |
| Last Statutory Verification | September 2026 | SARB & SARS Financial Updates |
Frequently Asked Questions About Cash Flow Management
A business runs out of cash when money is trapped in unpaid customer receivables (debtor book) or unsold inventory, while immediate cash obligations (payroll, rent, supplier invoices, SARS VAT) must be settled before customer payments clear.
Financial advisors generally recommend maintaining a minimum cash buffer of 3 to 6 months of fixed operational expenses to insulate against debtor default, supply chain disruptions, or load-shedding generator fuel surges.
Offer 2% early-settlement discounts for payments within 7 to 10 days, enforce automated invoice reminders, utilize debtor invoice discounting facilities, and require upfront deposits on custom orders.
The direct method (used by this calculator) tracks actual gross cash receipts and disbursements directly. The indirect method begins with net accounting profit from the income statement and adjusts for non-cash items (depreciation) and working capital changes.
Yes, clicking the Print Forecast button produces a formatted liquidity statement suitable for attaching to commercial loan applications, overdraft facility reviews, and investor pitch presentations.
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Sources & Statutory Methodology
Calculations adhere to South African Institute of Chartered Accountants (SAICA) working capital guidelines, IAS 7 Cash Flow Statements, and South African Reserve Bank (SARB) monetary standards.
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