What you'll learn
This revision guide covers the complete treatment of depreciation of non-current assets for the CXC CSEC Principles of Accounts examination. You will master the calculation methods, accounting entries, and presentation requirements that appear regularly in both Paper 1 (multiple choice) and Paper 2 (structured questions). The content aligns directly with Section 3 of the CSEC syllabus: Recording and Processing Financial Data.
Key terms and definitions
Depreciation — The systematic allocation of the cost of a non-current asset over its useful life, reflecting the reduction in value due to wear and tear, obsolescence, or passage of time.
Non-current assets — Resources owned by a business expected to provide economic benefits for more than one accounting period, such as machinery, vehicles, buildings, and equipment.
Straight-line method — A depreciation method that allocates equal amounts of depreciation expense to each accounting period over the asset's useful life.
Reducing balance method — A depreciation method that applies a fixed percentage rate to the net book value of the asset at the start of each period, producing higher charges in earlier years.
Net book value (NBV) — The original cost of a non-current asset less accumulated depreciation to date; also called carrying amount or written-down value.
Residual value — The estimated amount a business expects to receive when disposing of an asset at the end of its useful life, also known as scrap value or salvage value.
Accumulated depreciation — The total depreciation charged on a non-current asset from the date of acquisition to the current date.
Disposal of assets — The removal of a non-current asset from the books when it is sold, scrapped, or traded in, requiring calculation of profit or loss on disposal.
Core concepts
Purpose and nature of depreciation
Depreciation matches the cost of using a non-current asset against the revenue it helps generate. This application of the matching concept ensures financial statements present a true and fair view of business performance and financial position.
Key reasons for charging depreciation:
- To spread the cost of an asset over the periods that benefit from its use
- To accumulate funds for eventual replacement (though depreciation itself does not set aside cash)
- To show assets at realistic values in the Statement of Financial Position
- To comply with accounting standards and the prudence concept
Common causes of depreciation include:
- Physical deterioration from use (a delivery van travelling Caribbean roads)
- Economic obsolescence (older accounting software replaced by cloud-based systems)
- Time factors (a lease with finite duration)
- Depletion (extraction of bauxite from a Jamaican mine)
Straight-line method of depreciation
The straight-line method charges equal depreciation each year. It is appropriate when an asset contributes equally to business operations throughout its life.
Formula:
Annual Depreciation = (Cost - Residual Value) / Useful Life in Years
Example: A Barbadian retail store purchases display fixtures for $15,000. Estimated useful life is 5 years with residual value of $3,000.
Annual Depreciation = ($15,000 - $3,000) / 5 years = $2,400 per year
Each year's net book value:
- Year 0 (purchase): $15,000
- End Year 1: $15,000 - $2,400 = $12,600
- End Year 2: $12,600 - $2,400 = $10,200
- End Year 3: $10,200 - $2,400 = $7,800
- End Year 4: $7,800 - $2,400 = $5,400
- End Year 5: $5,400 - $2,400 = $3,000 (residual value)
Reducing balance method of depreciation
The reducing balance method applies a fixed percentage to the diminishing net book value each period. This method suits assets that lose value rapidly in early years or require increasing maintenance as they age, such as motor vehicles or computers.
Formula:
Depreciation Expense = Net Book Value at Start of Year × Depreciation Rate %
Example: A Trinidadian transport company purchases a minibus for $80,000 and depreciates it at 25% per annum on the reducing balance method.
Year 1:
- Depreciation: $80,000 × 25% = $20,000
- Net Book Value: $80,000 - $20,000 = $60,000
Year 2:
- Depreciation: $60,000 × 25% = $15,000
- Net Book Value: $60,000 - $15,000 = $45,000
Year 3:
- Depreciation: $45,000 × 25% = $11,250
- Net Book Value: $45,000 - $11,250 = $33,750
Note: Depreciation decreases each year while net book value never reaches zero (unless fully disposed).
Accounting entries for depreciation
Double entry when recording annual depreciation:
Debit: Depreciation Expense (Income Statement) Credit: Accumulated Depreciation (Statement of Financial Position)
This treatment:
- Reduces profit through the expense charge
- Reduces the net book value of assets through accumulated depreciation
- Maintains the original cost in the asset account unchanged
Presentation in ledger accounts:
The asset account shows only:
- Debit: Original cost (and additions)
- Credit: Disposal entries (when asset is disposed)
The accumulated depreciation account shows:
- Credit: Annual depreciation charges
- Debit: Depreciation on disposals
In the Statement of Financial Position:
Non-current assets are presented showing:
- Cost
- Less: Accumulated depreciation
- Equals: Net book value
Disposal of non-current assets
When selling or scrapping an asset, businesses must:
- Remove the original cost from the asset account
- Remove accumulated depreciation to date
- Record any proceeds received
- Calculate profit or loss on disposal
Steps for disposal accounting:
Step 1: Transfer asset cost to Disposal Account
- Debit: Disposal Account
- Credit: Asset Account
Step 2: Transfer accumulated depreciation to Disposal Account
- Debit: Accumulated Depreciation Account
- Credit: Disposal Account
Step 3: Record any proceeds received
- Debit: Bank/Receivable
- Credit: Disposal Account
Step 4: Balance Disposal Account to find profit or loss
- If debit side > credit side: Loss on disposal (transfer to Income Statement)
- If credit side > debit side: Profit on disposal (transfer to Income Statement)
Part-year depreciation
When assets are purchased or disposed during an accounting period, depreciation must be calculated for the portion of the year the business owned and used the asset.
Methods for calculating part-year depreciation:
Monthly basis (most accurate):
Depreciation = Annual Depreciation × (Number of Months Owned / 12)
Example: An asset costing $24,000 purchased on 1st July is depreciated at 20% per annum straight-line. The financial year ends 31st December.
Annual depreciation = $24,000 × 20% = $4,800
Depreciation for 6 months = $4,800 × 6/12 = $2,400
Policy-based approaches:
Some businesses adopt consistent policies:
- Full year's depreciation in year of purchase, none in year of disposal
- Half year's depreciation in both year of purchase and disposal
- No depreciation in year of purchase, full year in year of disposal
CXC examiners expect you to follow instructions given in the question. If unstated, the monthly basis is most accurate.
Worked examples
Example 1: Straight-line depreciation with part-year calculation
Question: Caribbean Foods Ltd purchased equipment on 1st April 2022 for $36,000. The company depreciates equipment at 15% per annum using the straight-line method. The financial year ends on 31st December.
Required: (a) Calculate depreciation for the year ended 31st December 2022. (3 marks) (b) Calculate the net book value at 31st December 2023. (3 marks)
Solution:
(a) Depreciation for year ended 31st December 2022:
- Annual depreciation = $36,000 × 15% = $5,400 (1 mark)
- Months owned in 2022 = 9 months (April to December) (1 mark)
- Depreciation charge = $5,400 × 9/12 = $4,050 (1 mark)
(b) Net book value at 31st December 2023:
- Cost: $36,000
- Less: Depreciation for 2022: $4,050
- Less: Depreciation for 2023 (full year): $5,400 (1 mark)
- Accumulated depreciation: $9,450 (1 mark)
- Net book value: $36,000 - $9,450 = $26,550 (1 mark)
Example 2: Reducing balance method with disposal
Question: Paradise Rentals purchased a motor vehicle on 1st January 2020 for $50,000. The company depreciates vehicles at 30% per annum on the reducing balance method. On 31st December 2022, the vehicle was sold for $19,000.
Required: (a) Prepare the Motor Vehicles Account for the years 2020-2022. (4 marks) (b) Prepare the Accumulated Depreciation - Motor Vehicles Account for the years 2020-2022. (4 marks) (c) Prepare the Disposal of Motor Vehicle Account, showing clearly the profit or loss. (4 marks)
Solution:
(a) Motor Vehicles Account
2020 $ 2022 $
Jan 1 Bank 50,000 Dec 31 Disposal 50,000
(1 mark for date, 1 mark for entry, 1 mark for amount, 1 mark for balance transfer)
(b) Accumulated Depreciation - Motor Vehicles Account
2020 $ 2020 $
Dec 31 Balance c/d 15,000 Dec 31 Depreciation 15,000
(50,000 × 30%)
2021 $ 2021 $
Dec 31 Balance c/d 25,500 Jan 1 Balance b/d 15,000
Dec 31 Depreciation 10,500
______ (35,000 × 30%) ______
25,500 25,500
2022 $ 2022 $
Dec 31 Disposal 25,500 Jan 1 Balance b/d 25,500
(1 mark for correct format, 1 mark for 2020 calculation, 1 mark for 2021 calculation, 1 mark for transfer to disposal)
(c) Disposal of Motor Vehicle Account
2022 $ 2022 $
Dec 31 Motor Vehicles 50,000 Dec 31 Accumulated Dep. 25,500
Dec 31 Bank 19,000
Dec 31 Loss on Disposal 5,500
______ ______
50,000 50,000
(1 mark for cost entry, 1 mark for accumulated depreciation, 1 mark for proceeds, 1 mark for loss calculation)
The vehicle was sold at a loss of $5,500 because the net book value ($24,500) exceeded the proceeds ($19,000).
Example 3: Comparison of methods
Question: Island Traders is considering two depreciation methods for new office furniture costing $20,000 with an expected useful life of 4 years and residual value of $2,000.
Method A: Straight-line Method B: Reducing balance at 40% per annum
Required: Calculate the depreciation charge for Year 1 and Year 2 under both methods. (6 marks)
Solution:
Method A: Straight-line
- Annual depreciation = ($20,000 - $2,000) / 4 = $4,500 (1 mark)
- Year 1 depreciation: $4,500 (1 mark)
- Year 2 depreciation: $4,500 (1 mark)
Method B: Reducing balance at 40%
- Year 1 depreciation = $20,000 × 40% = $8,000 (1 mark)
- NBV end Year 1 = $20,000 - $8,000 = $12,000
- Year 2 depreciation = $12,000 × 40% = $4,800 (1 mark)
Summary table: (1 mark)
| Year | Straight-line | Reducing Balance |
|---|---|---|
| 1 | $4,500 | $8,000 |
| 2 | $4,500 | $4,800 |
Common mistakes and how to avoid them
Forgetting to deduct residual value in straight-line calculations. The formula requires (Cost - Residual Value) / Useful Life. Always check if a residual value is mentioned in the question. If unstated, assume zero.
Applying the depreciation rate to cost instead of net book value in reducing balance method. Each year, multiply the rate by the opening net book value (which decreases annually), not the original cost.
Calculating depreciation on disposed assets for the full year. When an asset is disposed part-way through the year, calculate depreciation only up to the disposal date unless the question specifies a different policy.
Confusing debit and credit entries for depreciation. Remember: Debit the expense (increases expenses, reduces profit), Credit accumulated depreciation (increases accumulated depreciation, reduces net book value of assets).
Omitting accumulated depreciation when calculating profit/loss on disposal. Net book value = Cost - Accumulated Depreciation. You must remove the accumulated depreciation from the books when disposing of an asset.
Presenting accumulated depreciation incorrectly in the Statement of Financial Position. Show: Cost, minus Accumulated Depreciation, equals Net Book Value. Never show only the net figure without the breakdown in formal statements.
Exam technique for "Depreciation of Non-Current Assets"
Command word recognition: "Calculate" requires numerical answers with workings shown. "Prepare" requires formal ledger account format with proper headings and dates. "Explain" requires written reasons, typically worth 2-3 marks per point.
Show all workings clearly. CXC marks schemes award method marks even if the final answer is incorrect. Write formulas, show calculations step-by-step, and label each component.
Use proper account format for ledger accounts. Include dates (year, month, day), particulars/details, and amount columns on both debit and credit sides. Underline totals and balance figures correctly.
Check answer reasonableness. Depreciation should reduce asset values, not increase them. Net book value should decrease over time. Disposal losses occur when proceeds are less than net book value, profits when proceeds exceed net book value.
Quick revision summary
Depreciation allocates the cost of non-current assets over their useful lives. The straight-line method charges equal amounts annually: (Cost - Residual Value) / Useful Life. The reducing balance method applies a fixed percentage to the diminishing net book value each period. Record depreciation by debiting Depreciation Expense and crediting Accumulated Depreciation. When disposing of assets, remove both cost and accumulated depreciation, record proceeds, and calculate profit or loss on disposal. Always adjust depreciation for part-year ownership when assets are acquired or disposed during the accounting period.