Flexible budget

A flexible budget is a budget that adjusts or flexes with changes in volume or activity. The flexible budget is more sophisticated and useful than a static budget. (The static budget amounts do not change. They remain unchanged from the amounts established at the time that the static budget was prepared and approved.) For costs that vary with volume or activity, the flexible budget will flex because the budget will include a variable rate per unit of activity instead of one fixed total amount. In short, the flexible budget is a more useful tool when measuring a manager’s efficiency.