How often should we refresh our cash forecast?

The 13-week rolling cash forecast should be refreshed every week — every Monday. Replace last week's actuals, add a new week 13, and update all forward assumptions. Monthly refresh is insufficient for operational cash management. The annual scenario model should be updated when a material business assumption changes (e.g., a large customer churns, a planned fundraise timeline shifts).

What's the difference between a 13-week and annual cash forecast?

The 13-week forecast is a direct-method, week-by-week model of actual cash receipts and disbursements — built for operational precision. The annual forecast is a driver-based, indirect-method model used for strategic planning, runway analysis, and scenario testing. They serve different purposes and should be maintained separately, with a reconciliation at the quarterly boundary.

What DSO should a SaaS company target?

DSO benchmarks vary by customer segment. SMB-focused SaaS should target under 30–40 days; mid-market typically runs 30–45 days; enterprise can run 45–60 days due to procurement cycles. The key is that your cash forecast must use your actual historical DSO by customer — not your invoice payment terms. Companies that have shifted from manual invoicing to automated billing systems typically achieve DSO 10–20 days lower than peers.

How does venture debt affect our cash forecast?

Venture debt adds three forecast dimensions: (1) scheduled debt service payments on exact calendar dates, (2) a minimum cash covenant that reduces your effective available liquidity, and (3) if the facility is a revolver, a fluctuating borrowing base tied to your eligible AR. All three must be modeled explicitly. A 13-week cash forecast that a lender can review within 24 hours of request is also a meaningful factor in deal pricing.

When should we move from spreadsheets to a cash forecasting tool?

Excel or Google Sheets are appropriate and entirely sufficient below approximately $15–20M ARR, provided the model is well-structured with weekly variance tabs and protected forecast logic. The case for dedicated software strengthens when multi-entity consolidation, ERP integration, or model maintenance is consuming more than 4–6 hours per week of finance team time. The decision should be driven by time cost and complexity, not by revenue milestone alone.

Cash Flow Forecasting Best Practices for Scaling Businesses

Cash flow forecasting best practices for scaling businesses — how to build a rolling 13-week model, pressure-test assumptions, reconcile against actuals, and use the forecast to make hiring, fundraising, and investment…