JAIIB AFM depreciation accounting: Methods & Examples

Depreciation accounting is one of the highest-yield topics in the JAIIB Accounting and Financial Management for Bankers (AFM) paper, and almost every attempt carries direct numerical and conceptual questions on it. Whether you are preparing for the JAIIB exam or strengthening your fundamentals, a clear grasp of depreciation accounting will help you answer balance-sheet, profit-and-loss, and asset-valuation questions with confidence.

In simple terms, depreciation is the systematic allocation of the cost of a tangible fixed asset over its useful life. It is a non-cash expense that reduces both the book value of the asset and the reported profit. For bankers analysing borrower financials. Understanding depreciation accounting is essential because it directly affects net profit, tax liability, and the true worth of the assets pledged as security.

What Is Depreciation and Why It Matters

Depreciation represents the gradual decline in the value of a fixed asset due to use, wear and tear, obsolescence, or the passage of time. Land is generally not depreciated because it has an indefinite useful life. Every other tangible asset — machinery, furniture, vehicles, buildings, computers — loses value and must be written down each year.

The core objectives of depreciation accounting are:

• Matching principle: spreading an asset's cost across the periods that benefit from its use, so profit is not overstated.
• True financial position: showing assets at their realistic net book value (cost minus accumulated depreciation).
• Replacement provision: retaining funds within the business so the asset can eventually be replaced.
• Tax compliance: claiming a legitimate deductible expense as permitted by law.

Three key terms recur in every problem: cost (purchase price plus installation and freight), scrap or residual value (estimated value at the end of useful life), and useful life (the period the asset is expected to generate economic benefit). Master these definitions first, because most exam mistakes come from misreading the residual value or the life of the asset. For more banking concept drills, try the practice sets on our JAIIB mock tests page.

Straight Line Method (SLM) With a Worked Example

Under the Straight Line Method, an equal amount of depreciation is charged every year over the asset's useful life. It is the simplest and most commonly tested method in depreciation accounting. The formula is:

Annual Depreciation = (Cost − Residual Value) ÷ Useful Life

Worked example: A bank purchases a server for ₹5,00,000. Installation costs ₹20,000. The estimated residual value is ₹40,000 and the useful life is 5 years.

• Total cost = 5,00,000 + 20,000 = ₹5,20,000
• Depreciable amount = 5,20,000 − 40,000 = ₹4,80,000
• Annual depreciation = 4,80,000 ÷ 5 = ₹96,000 per year

So the asset is reduced by a fixed ₹96,000 every year, and after 5 years its book value equals the ₹40,000 residual value. The rate of depreciation under SLM can also be expressed as a percentage of cost: 96,000 ÷ 5,20,000 ≈ 18.46% per annum. SLM is preferred for assets that deliver uniform service across their life, such as buildings and furniture. Its main limitation is that it ignores the fact that repair costs usually rise as an asset ages, so the total burden (depreciation plus maintenance) is uneven in later years. You can reinforce these formulas with quick recall drills on our concept matching game.

Written Down Value Method (WDV) and Comparison

Under the Written Down Value (or Diminishing Balance) Method. Depreciation is charged at a fixed percentage on the reducing book value of the asset each year. This means the depreciation expense is highest in the first year and falls progressively. WDV is widely used because the Income Tax Act, 1961 prescribes it for most asset blocks, making it crucial for depreciation accounting in a tax context.

Worked example: An asset costs ₹1,00,000 and is depreciated at 20% per annum under WDV. The schedule is:

Notice the declining charge: ₹20,000 in Year 1 versus ₹8,192 in Year 5. Because the rate applies to a shrinking base, the book value never reaches zero — a distinguishing feature examiners love to test. The key contrasts to memorise:

• SLM charges a constant amount; WDV charges a constant percentage on a falling balance.
• SLM book value can become zero (or residual); WDV book value approaches but never hits zero.
• WDV front-loads expense, suiting assets like machinery and vehicles that lose value fast early on.

Accounting Treatment, Journal Entries and Other Methods

In the books, depreciation accounting is recorded through standard journal entries. The most common approach uses a Provision for Depreciation (Accumulated Depreciation) account so the asset stays at original cost in the ledger:

• For charging depreciation: Depreciation A/c Dr. — To Provision for Depreciation A/c
• For transferring to P&L: Profit & Loss A/c Dr. — To Depreciation A/c

In the Balance Sheet, the asset is shown at cost less accumulated depreciation, giving its net book value. When an asset is sold, the difference between sale proceeds and book value is recorded as a profit or loss on disposal.

Beyond SLM and WDV, JAIIB candidates should recognise a few specialised methods:

• Sum of Years' Digits (SYD): an accelerated method weighting depreciation by remaining life.
• Units of Production: depreciation based on actual output or usage rather than time.
• Sinking Fund / Annuity: methods that build a fund for asset replacement, common in long-life assets.

Indian financial reporting follows AS-10 / Ind AS-16 for property, plant and equipment, while companies refer to Schedule II of the Companies Act, 2013 for useful lives. The regulatory framework banks operate under is governed by the Reserve Bank of India, and accounting standards are issued by the Institute of Chartered Accountants of India. For the latest exam pattern and syllabus, always cross-check the official IIBF website. You can keep up with rate-linked updates via our RBI rates tracker and deepen related theory through the AFM blog library.

Exam Strategy and Common Mistakes

To score full marks on depreciation accounting questions, internalise these practical tips. First, always read whether the rate is given on cost (SLM) or on written down value (WDV) — this single distinction decides your entire calculation. Second, deduct residual value only under SLM; WDV applies the rate to the gross book value. Third, watch for assets purchased mid-year: depreciation must be charged proportionately for the number of months the asset was in use.

• Add freight, installation, and commissioning to cost before depreciating.
• Round figures only at the final step to avoid cumulative errors.
• For change-of-method questions, recompute from the date specified in the problem.
• Remember that depreciation is a non-cash item and is added back in cash flow statements.

Banking aspirants should also link depreciation to ratio analysis: higher depreciation lowers net profit and return ratios but improves cash flow because the expense is non-cash. This interconnection is a favourite higher-order question in the AFM paper. If you are also preparing the advanced curriculum, the same concepts extend into the CAIIB syllabus at a deeper analytical level.

Conclusion: Practice Depreciation Accounting to Score Higher

Depreciation accounting rewards candidates who practise numerical problems rather than just memorising definitions. Work through SLM and WDV examples until the formulas feel automatic, and always identify the method, the base, and the residual treatment before you calculate. With consistent revision, this topic becomes a guaranteed source of marks in the JAIIB AFM paper. Ready to test yourself? Attempt a full-length practice set on our JAIIB AFM mock tests and enrol in the structured JAIIB preparation course to master every accounting topic with confidence.