Verne Harnish 13 Week Cash Forecast

Review your business cash runway using the Verne Harnish 13 week cash forecast framework to spot liquidity issues early.

5 time blocks, 35 minutes in total.

Time blocks

Update Starting Cash Balance: 5 min
Reconcile bank balances across all active business accounts
Project 13-Week Cash Inflows: 10 min
Map expected customer payments by week based on realistic dates
Project 13-Week Cash Outflows: 10 min
Enter scheduled vendor payments, payroll, taxes, and debt obligations
Identify Cash Pinch Points: 5 min
Flag weeks where ending cash balance dips near or below your buffer
Assign Corrective Action Steps: 5 min
Set clear tasks to speed collections or delay non-essential spend

About this routine

In Scaling Up, growth advisor Verne Harnish stresses that cash is the primary oxygen of any growing company. The Verne Harnish 13 week cash forecast gives leaders a rolling quarterly view of real cash movements, moving past delayed accounting statements to manage true solvency.

Thirteen weeks represents one full financial quarter. This window is long enough to spot cash shortfalls before they become emergencies, yet short enough for operational projections to stay accurate. Reviewing this model weekly helps teams protect cash reserves and make confident spending decisions.

Why this routine works

Spot cash flow gaps up to one full quarter in advance
Improve precision around collection dates and vendor payouts
Maintain a clear safety buffer for business operating capital

FAQ

What is the Verne Harnish 13 week cash forecast?

It is a rolling quarterly cash management process from Scaling Up that projects weekly inflows and outflows to track actual liquidity.

How long does a 13 week cash forecast review take?

A focused review takes 35 minutes once your forecast spreadsheet or software model is established.

Why is the forecast built for 13 weeks?

Thirteen weeks equals one full quarter, providing the optimal balance between medium term forward vision and short term precision.

Sources

Scaling Up: How a Few Companies Make It... and Why the Rest Don't, Verne Harnish
Growth Institute, Cash Flow Forecasting Frameworks