Enterprise companies may pay on Net 60–90 day terms. You need to plan for this when you start a project; payments for completed work may continue arriving after the project ends. Actual payment terms and timing vary by contract. Map when payments are expected to arrive, alongside the cash you plan to spend. Include business costs, planned owner draws and any separately determined reserves in outflows. Keep unpaid invoices out of opening cash.
Worked example · illustrative USD
Start with $12,000. With $7,000 of outflows each month and receipts of $0, $16,000 and $8,000, the expected month-end balances are $5,000 → $14,000 → $15,000.
If the $16,000 receipt moves from month 2 to month 3, balances become $5,000 → −$2,000 → $15,000. The same total receipts can still leave a cash gap along the way.
Next conversation: Confirm the invoice approver and payment date. Review what spending can move, whether the start date works and what reserve you need before committing. A monthly view can also hide a shortfall within the month; examine exact dates before making a decision.
Book context: invoicing and accounting, Ch. 4, pp. 81–88. Cash receipt timing is consistent with SBA finance guidance. The scenario and arithmetic are new editorial examples, not a forecast for your business.