Cloud Budgeting

A budget that exists only as a number in a spreadsheet, checked once a month, catches an overrun after the money is already spent. The point of budgeting isn't the forecast itself — it's the early-warning system that lets someone act while there's still spend left to prevent, not just spend left to explain after the fact.

Budgeting also has to answer a harder question than "are we over": whether the spend is proportionate to the value it's producing. A bill that doubles because usage doubled is healthy; a bill that doubles while usage is flat is not — and only unit economics can tell the two apart.

A budget's job is to give you time to act before the overrun, not a report after it.

1. Forecast from trend plus known changes, not last month's total

Last month's total is a lagging number — it says nothing about a migration, a new feature launch, or a customer onboarding that's about to change the trajectory. A forecast built from the recent trend line, adjusted for known upcoming changes (a launch date, a planned decommission, a seasonal pattern), is far more useful than an extrapolation of a single flat number.