How Should Investors Test a Company's Working Capital and Cash Needs?
Short answer. Reconcile operating cash flow to earnings, then map customer payment timing and inventory purchases. Account for payroll and payables, taxes and debt service, then planned investment. Forecast cash runway under slower sales, delayed collections, and higher costs. Model faster growth too. Identify when funding runs short, who can provide more capital, and the applicable terms.
A company can report profits yet run short of cash when receipts and payments arrive at different times. Compare timing across the operating cycle and pinpoint when available funds no longer cover obligations.
Map the Cash Cycle
Request monthly cash flow statements, bank statements, accounts receivable and payable aging, inventory reports, payroll records, tax payment schedules, and the operating budget. Match reported cash to bank balances and reconcile operating cash flow to earnings. Ask why collections, inventory purchases, or supplier payments differ from reported activity.
Trace how a sale turns into cash. Review invoice dates, payment terms, collection dates, and write-offs. Check records of customer disputes and credits. For inventory businesses, follow purchase orders through receipt and production to sale. Compare supplier terms with the company's payment history. Check whether a few large customers or suppliers create timing pressure. Add payroll and rent to the cash calendar. Account for taxes and debt service, then include maintenance and required capital spending.
Build a Monthly Forecast and Find the Breakpoint
Ask management for a monthly forecast linking sales to collections, inventory, payables, expenses, debt payments, and capital spending. Rebuild key assumptions from source records. Model slower sales and delayed collections, then test higher costs. Model faster growth that requires more working capital too. For each case, show the lowest cash balance, when it occurs, and which payment or operating need causes the shortfall.
Ask, "In which month, and at what cash balance, can the company no longer meet its obligations?" Also ask, "What changes if collections take longer than planned?" and "What happens if sales grow faster and require more inventory or receivables?" Identify whether the forecast depends on financing, asset sales, or customer payments that are not committed. If the forecast stays positive only with unconfirmed funding, prepare a separate downside case.
Test Access to Additional Cash
Review credit agreements, borrowing base calculations, maturity dates, repayment schedules, and lender correspondence. Confirm available capacity using current receivables and inventory, based on the borrowing base calculation and eligibility rules. Identify covenant restrictions and how a decline in eligible collateral would reduce borrowing. Have your attorney and CPA review legal and accounting details when needed.
Ask, "Who can provide additional capital, and on what terms?" and "What happens if an owner cannot or will not contribute?" Count a refinancing, waiver, or new equity round as available only when supported by evidence. A gap may force dilution, expensive borrowing, delayed operations, or a sale under pressure. The separate review of company debt covenants covers limits that may restrict funding.
Keep the Evidence Tied to Decisions
Ask, "Which costs can management reduce quickly, and which continue if sales fall?" Request prior forecast-to-actual comparisons and written explanations for large variances. Red flags include overdue receivables rising while revenue grows, suppliers being paid later without explanation, repeated forecast misses, or projected cash that depends on unapproved financing.
For a broader review of business and ownership, see what to inspect before buying a private company stake. Keep the working capital analysis focused on timing, available cash, and the size and date of any funding gap.
Checklist
- Reconcile operating cash flow to earnings and bank records.
- Trace receivables and inventory from source records; check payables separately.
- Include payroll and taxes, plus debt service and planned investment.
- Model slower collections, lower sales, higher costs, and faster growth.
- Record the lowest cash point and exact shortfall breakpoint.
- Confirm available borrowing and identify who can fund a gap.
Go deeper: What diligence can reveal whether a company's revenue is recurring?; How can a family office verify a private company's customer concentration?.
Sources: Family Office Club investor due diligence framework, The Single Family Office. Informational only, not financial, legal or tax advice.