Difference between Fixed Budget and Flexible Budget

The following are the main difference between fixed and flexible budget

Fixed BudgetFlexible Budget
Fixed budget is inflexible and does not change with the actual volume of output achieved. Flexible budget can be suitably recasted quickly according to level of activity attained.
Fixed budget assumes that conditions would remain static.Flexible   budget is design to change according to changed conditions.
Costs are not classified according to their variability i.e. fixed, variable and semi variable.Coasts are classified according to the nature of their variability.
Comparison of  actual and budgeted performance cannot be done correctly if the volume of output differs. Comparisons are realistic as the changed plan figures are placed against actual ones.
It is difficult o forecast accurately the results in it. Flexible budget clearly shows the impact of various expenses on the operational aspects of the business.
Only one budget at a fixed level of activity is prepared due to an unrealistic expectation on the part of the management Series of budgets are prepared at different level of activities.
Fixed budget has a limited application and is inefficient as a tool for cost control. Flexible budget has more application and can be used as a tool for cost control.
If the budgeted and actual activity levels vary, the correct ascertainment os coasts and fixation of prices becomes difficult. Flexible budget helps in fixation of prices and submission of tenders due to correct ascertainment of coasts.