A2CM-L06 — Overhead Variance Analysis
Understanding how overhead variances are calculated and analysed to improve cost control, operational efficiency, and management performance.
Learning Objectives
By the end of this lesson students should be able to:
• understand overhead variances
• distinguish fixed and variable overheads
• calculate variable overhead variances
• calculate fixed overhead variances
• interpret variance results
• answer examination-style questions
Concept Framework
What are Overhead Variances?
Overhead variances arise when actual overhead costs differ from standard or budgeted overhead costs.
Management uses overhead variance analysis to:
• control indirect costs
• improve efficiency
• monitor departmental performance
• identify causes of cost differences
Types of Overheads
| Type | Description |
|---|---|
| Variable Overheads | Change with production levels |
| Fixed Overheads | Remain constant within a relevant range |
CORE TERMINOLOGY & FORMULAE Variable Overhead Expenditure Variance
Variable Overhead Expenditure Variance
Actual Variable Overhead
−
Budgeted Variable OverheadVariable Overhead Efficiency Variance
(Standard Hours − Actual Hours)
× Standard Variable Overhead RateFixed Overhead Expenditure Variance
Budgeted Fixed Overhead
−
Actual Fixed OverheadFixed Overhead Volume Variance
Actual Production
−
Budgeted Production
×
Fixed Overhead Absorption Rate
INTERPRETING OVERHEAD VARIANCES
| Variance | Possible Cause |
|---|---|
| Variable Overhead Expenditure Adverse | Higher utility costs |
| Variable Overhead Expenditure Favourable | Lower indirect costs |
| Variable Overhead Efficiency Adverse | Production inefficiency |
| Variable Overhead Efficiency Favourable | Efficient resource usage |
| Fixed Overhead Expenditure Adverse | Unexpected fixed costs |
| Fixed Overhead Volume Adverse | Under-utilisation of capacity |
| Fixed Overhead Volume Favourable | Higher production volume |
Advantages
✓ Improves overhead cost control
✓ Measures operational efficiency
✓ Supports performance evaluation
✓ Identifies waste and inefficiency
✓ Assists managerial decision-making
Limitations
✓ Requires accurate standards
✓ Can be time-consuming
✓ Variances may result from external factors
✓ Overemphasis on short-term cost control
📌📌 Overhead Variance Analysis is a high-level examination topic frequently combined with standard costing and performance evaluation. Students should practise: ✓ Variable Overhead Variances ✓ Fixed Overhead Variances ✓ Variance Interpretation ✓ Management Recommendations ✓ Examination Presentation 🎥 Full worked solutions are available in the YouTube Learning Library. 📩 Students may submit overhead variance doubts through the Student Doubt Support facility.
Example 1 — Variable Overhead Expenditure Variance
Budgeted Variable Overhead:
£18,000
Actual Variable Overhead:
£20,500
Variance:£2,500 Adverse
Example 2 — Fixed Overhead Expenditure Variance
Budgeted Fixed Overhead:
£40,000
Actual Fixed Overhead:
£37,000
Variance:£3,000 Favourable
Example 3 — Fixed Overhead Volume Variance
Budgeted Production:
10,000 units
Actual Production:
11,000 units
Fixed Overhead Rate:
£2 per unit
Variance:1,000 × £2= £2,000 Favourable
📌 Overhead Variance Analysis is a high-level examination topic frequently combined with standard costing and performance evaluation.
Students should practise:
✓ Variable Overhead Variances
✓ Fixed Overhead Variances
✓ Variance Interpretation
✓ Management Recommendations
✓ Examination Presentation
🎥 Full worked solutions are available in the YouTube Learning Library.
📩 Students may submit overhead variance doubts through the Student Doubt Support facility.
Structured Practice
Level 1 – Concept Check
Define:
a) Variable Overhead
b) Fixed Overhead Volume Variance
Level 2 – Application Practice
Explain why a favourable fixed overhead volume variance may occur.
Level 3 – Examination Style Question
Budgeted Fixed Overheads:
£60,000Actual Fixed Overheads:
£65,000Calculate:
a) Fixed Overhead Expenditure Variance
b) State whether favourable or adverse
(3 marks)
📌 Additional structured questions are available in the 🎯 Question Papers + YouTube Explanation section.
∗ Additional structured questions are available in the Question Papers and YouTube Explanation section. Students should practise regularly and review video explanations for procedural clarity.
Enrolled students may submit questions from recognised textbooks, past examination papers or other genuine academic material for expert clarification through the Student Doubt Support facility.
Proficiency Check
Learn → Practise → Analyse → Evaluate
1. Can you distinguish fixed and variable overheads?
2. Can you calculate variable overhead variances accurately?
3. Can you calculate fixed overhead variances accurately?
4. Can you interpret variance results logically?
5. Can you explain causes of overhead variances?
6. Can you recommend management actions based on variance analysis?
If unsure, revisit:
• Overhead Variance Formulae
• Worked Examples
• Variance Interpretation Table
• Examination Practice Questions
Detailed Activity Solutions
Solution to Level 3 question
a)
Fixed Overhead Expenditure Variance
£60,000 − £65,000
= £5,000
b)
Adverse Variance
How This Topic Appears in the Examination
Common examination tasks include:
✓ Variable Overhead Variances
✓ Fixed Overhead Variances
✓ Variance Interpretation
✓ Performance Evaluation
✓ Management Recommendations
✓ Standard Costing Integration Questions
Self-Assessment Checklist
□ I understand overhead variances
□ I can distinguish fixed and variable overheads
□ I can calculate overhead variances accurately
□ I can interpret variance causes logically
□ I can recommend corrective actions
□ I can answer examination questions confidently
Continue Your Preparation
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GUESS PAPERS
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