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A Levelaccounting · Topic 15

Accounting Paper 2 Topic 15: Absorption Costing

Practice Cambridge exam questions on overhead allocation, apportionment, absorption rates, and under/over-absorption.

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About Absorption Costing

Absorption Costing covers the principles, procedures, and calculations involved in collecting, allocating, apportioning, and absorbing factory overheads into cost units to establish full production cost and determine inventory values.

Why Is Absorption Costing Important?

Absorption costing is a core management accounting technique that ensures all manufacturing costs (direct and indirect) are absorbed by output for pricing and financial reporting compliance under IAS 2. In Cambridge Paper 2, examiners test overhead distribution tables, step-down re-apportionment, and overhead adjustment calculations.

Skills Tested In This Topic

Candidates must allocate direct overheads, apportion general factory costs using appropriate bases (floor area, machine power, staff count), re-apportion service cost centre overheads to production departments, compute predetermined Overhead Absorption Rates (OARs), and calculate under- or over-absorbed overheads.

How This Topical Paper Helps

Solving topic-wise past paper questions from 2011 to 2024 trains students in rapid tabular presentation, eliminates confusion between actual and absorbed overhead calculations, and builds confidence for 15-to-25 mark cost accounting questions.

Exam Preparation Tips

Overhead Absorption Rate (OAR) is calculated using budgeted figures (Budgeted Overheads / Budgeted Activity Base). Absorbed overhead is calculated as OAR * Actual Activity. Under- or over-absorption is the difference between Actual Overheads Incurred and Absorbed Overheads.

Why Practice Past Paper Questions?

Authentic Cambridge structured questions expose students to multi-departmental manufacturing setups with step-down reciprocal service centres and fluctuating capacity levels.

Quick Answer

Absorption Costing allocates and apportions all indirect production overheads into production cost centres, calculating predetermined Overhead Absorption Rates (OARs) to absorb overheads into units produced. Students should revise by practicing overhead apportionment sheets, calculating under/over-absorption, and explaining the impact on profit for Cambridge Paper 2.

How To Revise Using This Paper

  • Memorize standard apportionment bases for rent, power, supervisor salaries, depreciation, and canteen expenses.
  • Practice multi-column overhead distribution and re-apportionment worksheets.
  • Learn the three-step formula sequence: Budgeted OAR, Absorbed Overheads, and Under/Over-Absorption.
  • Solve all structured cost accounting questions in this topical PDF under timed conditions.
  • Check your distribution table totals and absorbed overhead adjustments against official Cambridge mark schemes.
  • Re-attempt questions where service department re-apportionment or under/over-absorption caused errors.

Summary

Absorption Costing encompasses distributing manufacturing overheads to production departments, calculating predetermined absorption rates, and absorbing indirect costs into total unit production costs. Revision should focus on selecting appropriate apportionment bases, executing service department re-apportionment, and calculating under- or over-absorption of overheads. Topical past paper practice ensures high numerical accuracy on Cambridge Paper 2 structured cost questions.

Frequently Asked Questions

Overhead allocation charges a whole cost item directly to a single cost centre that caused it, whereas overhead apportionment divides a shared overhead across multiple cost centres using a fair equitable base.

OAR is calculated prior to the period as: Budgeted Production Overhead / Budgeted Activity Level (e.g. Direct Labour Hours or Machine Hours).

Under-absorption occurs when actual overheads incurred exceed absorbed overheads, caused by actual overhead expenditure being higher than budget, or actual activity level being lower than budgeted activity.

Over-absorption occurs when absorbed overheads exceed actual overheads incurred, caused by actual expenditure being lower than budget, or actual activity level exceeding budgeted capacity.

Under-absorbed overhead is added to Cost of Sales (reducing gross profit), while over-absorbed overhead is deducted from Cost of Sales (increasing gross profit).

Predetermined rates allow businesses to calculate product unit costs and quotes immediately during the year without waiting for actual year-end historical overhead totals.

A labour-hour rate is best for labour-intensive departments, a machine-hour rate is best for automated capital-intensive departments, and a unit-rate is suitable when all units are identical.

Common mistakes include calculating OAR using actual instead of budgeted figures, confusing under-absorption with over-absorption, and choosing inappropriate apportionment bases.

Dedicate four to five structured revision sessions practicing multi-departmental apportionment tables and under/over-absorption ledger accounts.

Yes. The topical PDF compiles official Cambridge 9706 Paper 2 questions with complete mark scheme workings for independent study.