How to build a driver-based budget for FY2027

Budget season is here, and many companies will build next year's plan the way they built last year's: take this year's actuals, add a few percent, and argue about the result. A driver-based budget takes a little more work up front and pays for itself the first time something changes mid-year.

Start with the drivers, not the accounts

A driver is an operational number that causes financial results: headcount, billable hours, members, covers, units shipped, average ticket, locations open. Pick the handful that explain most of your revenue and cost. If you can't name them, that's the first finding.

Build revenue from volume and price

Revenue should be volume times rate, built by location, product, or service line. A private club might budget members times dues, plus rounds times average spend. A practice might budget providers times visits times average revenue per visit. Seasonality belongs in the volume, month by month.

Tie costs to the drivers that cause them

Labor follows volume and staffing ratios. Cost of goods follows revenue mix. Fixed costs like rent and insurance come from contracts, not from last year's run rate. The fewer costs that are just "last year plus three percent," the more useful the budget becomes.

Build the cash view alongside the P&L

A budget that ignores timing will surprise you. Add capital spending, debt payments, and working capital assumptions so the plan shows month-end cash, not just profit.

Make it easy to change

• Keep assumptions on one tab, clearly labeled
• Use the same drivers for the forecast you'll update during the year
• Show results by month and by location or department

The payoff comes in March, when volume runs ahead of or behind plan. With a driver-based budget, you change one input and see the effect on profit and cash in minutes instead of rebuilding the model.