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Microlesson · 5-min read

Fixed Budget vs Flexible Budget

## Fixed Budget vs Flexible Budget

### Fixed Budget (Static Budget)

  • A predetermined financial plan based on a fixed level of activity
  • Remains unchanged regardless of actual activity levels
  • Also known as a Static Budget

Essential Conditions for a Fixed Budget:

  • Business is not seasonal
  • No significant impact of external factors
  • Demand is certain and stable
  • Supply orders are received and issued regularly
  • Domestic market (or regular export orders)
  • No special labour or material requirements
  • Regular supply of inputs
  • Price stability trend

Merits of Fixed Budget:

  • Very simple to understand
  • Less time-consuming to prepare

Demerits of Fixed Budget:

  • Unsuitable for dynamic organisations
  • Inadequate for long periods
  • Cannot accommodate constantly changing business conditions
  • May produce inaccurate estimates

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### Flexible Budget

  • A budget that adjusts with changes in output or turnover
  • Recognises fixed, variable, and semi-variable costs
  • CIMA: A budget which changes based on activity levels, considering fixed, semi-variable, and variable costs
  • Provides expected results at multiple activity levels

Three expense categories in a Flexible Budget:

1. Fixed Expenses

2. Variable Expenses

3. Semi-variable Expenses

When is a Flexible Budget suitable?

  • Seasonal fluctuations in sales/production (e.g., soft drinks industry)
  • Companies frequently introducing new products or design changes
  • Make-to-order industries (e.g., ship building)
  • Industries influenced by fashion changes
  • General instability in sales levels

Merits of Flexible Budget:

  • Easy calculation of costs and profits at different capacity levels
  • Allows simple adjustments to changing conditions
  • Aids in determining the optimal production level for a desired profit

Demerits of Flexible Budget:

  • Requires proper accounting system and standard costing
  • Expensive and labour-intensive to develop and maintain
  • Primarily quantity-focused; may miss other critical performance factors

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### Comparison: Fixed vs Flexible Budget

FeatureFixed BudgetFlexible Budget
Activity levelOne fixed levelMultiple levels
AdaptabilityRigidAdaptable
Suitable forStable, predictable businessesSeasonal, dynamic businesses
Cost classificationNot requiredEssential (Fixed/Variable/Semi-variable)
ComplexitySimpleComplex
Also known asStatic Budget

Worked example

### Example 1

Example — Fixed vs Flexible Budget Comparison:

A company budgeted production of 1,000 units with fixed costs of ₹50,000 and variable costs of ₹30 per unit.

ItemFixed Budget (1,000 units)Flexible Budget (800 units)Flexible Budget (1,200 units)
Fixed Costs₹50,000₹50,000₹50,000
Variable Costs₹30,000₹24,000₹36,000
Total Costs₹80,000₹74,000₹86,000

If actual production is 800 units, the Fixed Budget still shows ₹80,000 as the benchmark — which is unfair for cost control. The Flexible Budget adjusts to ₹74,000, giving a meaningful comparison.

⚠️ Common exam mistakes

  • Saying a Flexible Budget 'has no fixed costs' — it includes fixed costs; it is the BUDGET TOTAL that flexes with activity, not the nature of costs
  • Applying a Fixed Budget where seasonal fluctuations exist — it is unsuitable in such cases
  • Forgetting that Flexible Budget requires standard costing as a prerequisite
Reference:
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