Definition · budgeting
Operating budget
Operating budget is the plan of expected revenues and expenses for a period that guides spending. For operating budget, the useful boundary is the driver, assumption, source data, owner, time period, scenario logic, and decision the model is meant to support.
Also known as expense budget, annual budget
Why it matters
Understanding operating budget matters because planning only improves decisions when assumptions, drivers, owners, and time periods are explicit enough to revisit when actuals arrive. When the term is tied to a source system, owner, and review cadence, it becomes easier to audit assumptions, catch changes early, and keep operators aligned.
In practice
Planning example
Teams use operating budget when a forecast, budget, or scenario needs an assumption that can be revisited. The finance team should know the driver, source data, owner, and period before using it in a model.
Review example
Operating budget should be reviewed whenever the source system, calculation logic, time period, or decision owner changes. That keeps the definition useful instead of letting it drift into a label.
In practice, teams should define operating budget with a clear source, owner, time period, and decision before they use it in reporting, planning, or operating reviews.
Understanding operating budget matters because planning only improves decisions when assumptions, drivers, owners, and time periods are explicit enough to revisit when actuals arrive. When the term is tied to a source system, owner, and review cadence, it becomes easier to audit assumptions, catch changes early, and keep operators aligned.
A strong workflow for operating budget separates the definition from the action: first agree what the term means, then decide how it is measured, when it changes, and who is accountable for the next step.
FAQ
What is an operating budget?
Operating budget is the plan of expected revenues and expenses for a period that guides spending. For operating budget, the useful boundary is the driver, assumption, source data, owner, time period, scenario logic, and decision the model is meant to support.
What is included in an operating budget?
Whether operating budget includes a specific item depends on the agreed definition, source system, time period, and reporting purpose. For this glossary, use the definition above as the rule and document any exclusions before the metric is used in reporting.