What is cash flow forecasting?

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Cash flow forecasting is the process of projecting a business's future cash inflows and outflows over a defined period — typically 13 weeks, 6 months, or 12 months ahead. The goal is to give finance teams and CFOs visibility into whether the business will have enough liquidity to meet its obligations, fund its operations, and pursue its plans.

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A cash flow forecast is built from three streams: operating cash flows (collections from customers, payments to suppliers, payroll), investing cash flows (capex, asset disposals), and financing cash flows (loan repayments, dividends, equity raises).

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Why it's harder than it looks

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The challenge in cash flow forecasting is data quality and timeliness. A forecast is only as good as the receivables data feeding into it — if DSO assumptions are based on stale AR data, the forecast will be wrong. Similarly, if AP commitments aren't accurately captured, the outflow side will understate actual cash needs.

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Most finance teams in mid-to-large enterprises run their cash flow forecasts in spreadsheets, manually pulling data from ERP, banking, and planning systems. This creates a forecast that is accurate as of last week, not today.

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What good looks like

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Best-in-class cash flow forecasting is connected to live AR aging, AP aging, and bank transaction data. When collections slip or a large payment run is scheduled, the forecast updates automatically. Finance teams spend time interpreting the model and making decisions — not rebuilding it every week.

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Related: Working Capital Management · Cash Conversion Cycle · Treasury Reconciliation · Finance Data Lake