Flexible budgeting

Definition, purpose, and time frame

Definitions

Flexible budget

A dynamic budgeting approach that adjusts based on actual activity levels, unlike a static budget, which remains fixed regardless of changes in volume or business conditions.

The purpose of a flexible budget is to provide an adaptable financial plan that can accommodate fluctuations in activity, making it useful for performance evaluation and cost control. Flexible budgets can be prepared at the end of the period when actual activity is known and performance evaluation is performed through variance analysis between the static budget, actual results and the flexible budget.

Flexible budgeting is especially valuable in industries with variable production volumes, where costs and revenues shift based on demand, production levels, or other external factors. By adjusting for actual activity levels, flexible budgets offer a realistic basis for evaluating performance, helping managers control costs more effectively.

Components and interrelationships

The core components of a flexible budget are similar to those of a static budget: revenues, variable expenses and fixed expenses. However, in a flexible budget, these components are recalculated at different activity levels, allowing costs to vary directly with production or sales volume changes.

• Variable costs: These costs fluctuate with changes in activity levels, such as direct materials, direct labor, and variable manufacturing overhead.
• Fixed costs: Fixed costs remain constant in both flexible and static budgets, though they may be periodically reviewed for adjustment, especially if the activity level is outside of the relevant range (see below).

Developing the flexible budget

The development of a flexible budget begins with identifying variable and fixed costs. Variable costs are determined per unit of activity, allowing the budget to adjust in response to different activity levels. These per-unit costs provide the basis for estimating expenses at various levels of production or sales. Fixed costs, on the other hand, remain consistent within a certain range of activity, known as the relevant range. Within this range, fixed costs do not change; for example, a company may be able to use the same warehouse space to store finished goods, incurring a stable level of rent. However, if production exceeds this range, additional storage might be required, causing fixed costs to increase. In the context of CMA exams, unless otherwise specified, it’s generally assumed that fixed costs remain within the relevant range.

For example, if a company expects production levels to vary between 1,000 and 1,500 units, it would set budget estimates for variable costs at each anticipated level of production. As actual production or sales levels become known, the flexible budget adjusts to reflect these activity levels, providing a more accurate benchmark for evaluating performance and cost management.

Comparison to static budget

Definitions

Static budget

A budget that remains fixed for the entire period and does not adjust for changes in activity levels.

While static budgets are useful for planning, they may not provide accurate benchmarks for performance evaluation if actual activity differs significantly from expectations.

A flexible budget, by contrast, recalculates costs based on actual performance, offering a more accurate comparison of budgeted to actual results. This is especially valuable in identifying variances due to activity level changes rather than inefficiencies.

Example: Actual results vs. static vs. flexible budget

In this example scenario, the company initially planned for production of 1,000 units, but actual production and sales reached 1,200 units. The budgeted sales price per unit is $100, with variable costs estimated at $40 per unit and fixed costs expected to be $10,000, assuming they remain within the relevant range.

However, actual results showed a higher variable cost per unit at $42 and increased fixed costs totaling $12,000. The increase in fixed cost is not related to the additional 200 units produced. These changes affect the overall cost structure and provide a basis for comparing static, flexible, and actual results.

	Actual results (actual units at actual prices)	Static budget (budgeted units at budgeted prices)	Flexible budget (actual units at budgeted prices)
Revenue (Rev)	$120,000 (1,200 x $100)	$100,000 (1,000 x $100)	$120,000 (1,200 x $100)
Variable costs (VC)	$50,400 (1,200 x $42)	$40,000 (1,000 x $40)	$48,000 (1,200 x $40)
Fixed costs (FC)	$12,000	$10,000	$10,000
Total costs (TC = VC+ FC)	$62,400	$50,000	$58,000
Operating income (Rev - TC)	$57,600	$50,000	$62,000

In general, a flexible budget is created by adjusting the original budget to reflect actual activity levels, using standard unit costs for variable expenses. This approach allows for more accurate performance evaluation by matching the budget to actual production or sales volumes. Unlike a static budget, which remains unchanged regardless of activity level, a flexible budget recalculates variable costs and revenue based on actual units, providing a realistic comparison for assessing cost control and efficiency.

In this example:

• Static budget: the company initially planned production at 1,000 units, resulting in a static budget with expected sales revenue of $100,000 (1,000 units at $100 per unit), variable costs of $40,000 (1,000 units at $40 per unit), and fixed costs of $10,000.
• Flexible budget: When production actually reached 1,200 units, the flexible budget adjusted these figures to reflect the higher activity level, estimating sales revenue of $120,000 (1,200 units at $100 per unit) and variable costs of $48,000 (1,200 units at $40 per unit). Fixed costs remained at the budgeted $10,000 because we assume that the production is still within the relevant range and that the increase in fixed costs are not related to the additional 200 units produced.
• Actual results: The company achieved $120,000 in sales revenue, matching the flexible budget estimate since there are no changes in sales price. However, actual variable costs exceeded expectations, coming in at $50,400 due to a higher-than-budgeted cost per unit of $42. Fixed costs also increased beyond the budgeted $10,000, reaching $12,000. This brings total actual costs to $62,400, resulting in an operating income of $57,600, which is lower than the flexible budget’s operating income of $62,000.

The flexible budget approach highlights these cost variances, helping management pinpoint areas for cost control improvements by isolating efficiency variances from those driven by activity level changes. The flexible budget shows what the operating income would have been had the variable costs and fixed costs stayed within budget, given the levels of actual activity.

Benefits and limitations

Benefits

• Improved performance evaluation: Flexible budgets provide a realistic benchmark by adjusting for actual activity levels, helping managers evaluate efficiency accurately.
• Cost control: By recalculating budgeted costs as volumes change, flexible budgets allow for better tracking of expenses and identifying variances due to efficiency rather than volume differences.
• Adaptability: Flexible budgets are responsive to changes, providing an adaptable planning tool that reflects actual conditions more closely than static budgets.

Limitations

• Complexity and time requirements: Developing flexible budgets requires identifying and estimating variable costs per unit, which can be time-consuming and requires ongoing updates.
• Dependence on accurate data: Flexible budgeting relies on accurate cost behavior estimates for variable and fixed costs. Inaccurate data can impact the effectiveness of the budget.
• Not suitable for all organizations: Organizations with stable or predictable activity levels may not find flexible budgeting beneficial, as costs and revenues do not vary significantly.

Application in business situations

Flexible budgeting is valuable for companies facing high variability in production or sales, such as manufacturing and seasonal businesses. For instance, a company producing consumer goods with fluctuating demand might use flexible budgeting to adjust projections each quarter, providing relevant benchmarks for cost control. Similarly, service companies with variable workloads, like consulting firms, benefit from flexible budgets by adjusting resources to match project demand, ensuring efficient cost management.

In practice, flexible budgeting provides an adaptable approach that helps organizations respond to changing conditions, improving both cost management and performance evaluation.