Working-capital balance and cumulative cash pathNegative cash movement means additional funding is absorbed
Business
Working Capital Cash Flow Calculator
Follow the cash consequences of sales growth through receivables, inventory, and supplier funding. A twelve-month schedule applies the entered gross margin and cycle days to monthly sales, separates operating contribution from working-capital cash movement, and shows cumulative cash absorbed or released.
Month 12 operating working capital-
12-month cash absorbed / released-
Month 12 receivables-
Month 12 inventory-
Month 12 payables-
Cash conversion cycle-
12-month gross operating cash-
Peak incremental funding-
Ending working capital relative to twelve-month sales
Twelve-month liquidity profile
Follow receivables, inventory, supplier funding, and cash movement together
Operating working capitalCumulative cash movement
| Month | Sales | Receivables | Inventory | Payables | Operating WC | WC cash flow | Simplified operating cash |
|---|
Forecast setup
How to project working-capital cash flow month by month
- Start with the first forecast month’s sales and a monthly growth rate.
- Use gross margin to convert sales to COGS for inventory and payables.
- Enter DSO, inventory days, and DPO that match the operating plan.
- Reconcile the opening operating working-capital balance to the prior month.
- Read monthly working-capital cash flow as prior balance minus current balance.
Growth funding mechanics
Why profitable growth can absorb cash
Sales growth creates receivables before customers pay and often requires inventory before revenue is earned. Supplier terms finance part of that requirement. The schedule keeps those three balances visible and then adds their month-to-month change to gross operating contribution.
Detailed calculation process
Monthly formulas and sign convention
Salesₘ = Sales₁ × (1 + monthly growth)^(m−1)COGSₘ = Salesₘ × (1 − gross margin)NWCₘ = Salesₘ/30 × DSO + COGSₘ/30 × inventory days − COGSₘ/30 × DPOWC cash flowₘ = NWCₘ₋₁ − NWCₘSimplified operating cashₘ = gross profitₘ − fixed cash cost + WC cash flowₘOpening-balance reconciliation
The first month needs a real prior-period anchor
The opening operating working-capital input is the comparison balance for month 1. If it is inconsistent with the entered cycle days, the first monthly cash movement will include both true growth and a model-boundary adjustment. Reconcile receivables, inventory, and payables before using the first-month cash figure for treasury planning.
Decision uses
Questions this twelve-month view can answer
- How much incremental liquidity does the sales plan require?
- Which month creates the peak funding need?
- How much supplier funding offsets receivables and inventory?
- Does gross operating contribution cover the working-capital ramp?
Forecast boundaries
What the simplified schedule omits
- Seasonal monthly day counts and collection distributions
- Tax, payroll timing, capital expenditure, and debt service
- Bad debt, inventory reserves, and customer prepayments
- Product-mix changes in gross margin and cycle days
Working capital cash flow FAQ
Questions behind the monthly schedule
Why use 30 days per month?
It keeps the deterministic monthly conversion transparent. A treasury model can replace it with exact calendar days.
Why is payables shown as an overlay in the chart?
Receivables and inventory consume funding; payables offset that requirement. The table supplies the exact arithmetic.
Can growth be negative?
Yes. Enter a negative monthly rate; the model shows whether shrinking balances release cash.
Practical examples
Working Capital Cash Flow Calculator in real planning situations
- Estimate the liquidity required for a fast-growing sales plan.
- See whether supplier terms finance part of the inventory ramp.
- Trace monthly working-capital cash flow instead of relying on a single ending balance.
Important note
Before relying on this result
Calculated from the entered values using the displayed accounting method. Reconcile material decisions with source records and applicable accounting policy.
Additional Working Capital Cash Flow Calculator questions
Why can growth produce negative working-capital cash flow?
Receivables and inventory often rise before the related customer cash is collected.
How are monthly balances estimated?
Monthly sales and COGS are converted to daily values using 30 days, then multiplied by DSO, inventory days, and DPO.
Is gross profit the same as cash generated?
No. The schedule adds the working-capital cash movement to gross profit to show a simplified operating cash contribution.
Does the model include tax or capital expenditure?
No. It focuses on gross operating contribution and trade working capital.