What is Depreciation? Meaning, Causes, Importance & Examples
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Welcome to Finance with Aishira, where Accounting and Commerce are explained in a simple, practical, and beginner-friendly way.
What is Depreciation?
Depreciation is the systematic allocation of the depreciable amount of a long-term asset over its useful life.
In simple words: Depreciation is the gradual allocation of the cost of a business asset over the period during which the asset is expected to provide economic benefits.
Instead of treating the entire cost of a long-term asset as an expense immediately, businesses recognise the cost gradually over its useful life.
💡 Aishira Explains
Suppose a business buys a machine for ₹2,00,000 and expects to use it for several years. The machine doesn't help the business for just one day. It may help produce goods or provide services for many years.
So, instead of saying: "We spent ₹2,00,000 this year, so the entire amount is this year's expense," accounting recognises the portion of the asset's cost relating to the periods in which the asset is used. That allocation is called depreciation.
Quick Example of Depreciation
Suppose a business purchases a coffee machine for: Cost = ₹2,00,000. The machine is expected to be useful for: 10 years. Assuming no residual value for this simple illustration: ₹2,00,000 ÷ 10 = ₹20,000 per year
So, under a simple Straight Line calculation, ₹20,000 would be recognised as depreciation each year. The business does not pay ₹20,000 again every year. The purchase payment already happened when the machine was bought. Depreciation is an accounting expense, not a new cash payment.
Why is Depreciation Important?
Depreciation is important because long-term assets are used to generate income over multiple accounting periods. If the entire cost of a long-term asset were charged as an expense in the year of purchase, the financial results of that year could be distorted. Depreciation helps businesses allocate the cost of the asset over the periods in which the asset provides economic benefits.
1. It Helps Calculate Profit
Depreciation is recorded as an expense. Therefore, depreciation affects the profit reported by a business.
For example:
| Particulars | Amount |
|---|---|
| Revenue | ₹10,00,000 |
| Other Expenses | ₹6,50,000 |
| Depreciation | ₹20,000 |
| Profit | ₹3,30,000 |
Without recording depreciation, the reported profit would be higher.
2. It Helps Show the Carrying Amount of Assets
When depreciation is recorded, the carrying amount or book value of the asset is reduced over time.
For example: Cost of Machine = ₹2,00,000 ; Depreciation = ₹20,000 (2,00,000 - 20,000)
Therefore: Book Value = ₹1,80,000
This helps financial statements reflect that the asset has been used over time.
3. It Matches Asset Cost With Its Use
A long-term asset may generate income for several years. Depreciation allocates its cost over those periods instead of charging the entire cost to one year. This reflects the basic accounting idea that expenses should be recognised in the periods in which the related economic benefits are consumed.
4. It Helps Prepare Reliable Financial Statements
If depreciation were completely ignored, assets could continue to appear at their original cost even after years of use. Recording depreciation helps present a more meaningful picture of:
Assets
Expenses
Profit
Financial position
Is Depreciation a Cash Expense?
No. Depreciation is generally a non-cash expense. This means that recording depreciation does not involve a new cash payment.
💡 Aishira Explains
Suppose you purchase a machine for ₹2,00,000. The ₹2,00,000 leaves your bank account when you purchase the machine. Later, you record ₹20,000 as depreciation. Does another ₹20,000 leave your bank account? No. The depreciation entry simply recognises the portion of the asset's cost allocated to that accounting period. That's why depreciation can: Reduce accounting profit without reducing cash at the time it is recorded.
Why Isn't the Entire Asset Cost Recorded as an Expense Immediately?
This is one of the most common questions beginners have. Suppose a business buys a machine for ₹2,00,000 and expects to use it for 10 years. If the entire ₹2,00,000 were recorded as an expense in Year 1:
| Year | Expense |
|---|---|
| Year 1 | ₹2,00,000 |
| Year 2 | ₹0 |
| Year 3 | ₹0 |
| Year 4 | ₹0 |
But the machine is still helping the business in Years 2, 3, and 4. So the accounting treatment would not reflect the machine's continuing use very well. Instead, the cost can be allocated over its useful life.
For a simple illustration: ₹2,00,000 ÷ 10 years = ₹20,000 per year This gives a more systematic allocation of the asset's cost.
The Matching Principle and Depreciation
The Matching Principle is an important accounting concept related to depreciation. The Matching Principle means that expenses should be recognised in the same accounting periods as the income they help generate. A machine may help a business earn income for many years. Therefore, its cost is allocated over the periods in which it is used.
💡 Aishira Explains
Think of it like buying a box of candles. You don't use the entire box on one night. You use one candle at a time. Similarly, a business doesn't "consume" the entire usefulness of a machine on the day it purchases it. The machine provides benefits over time. Depreciation helps allocate its cost over that period.
Which Assets Are Depreciated?
Depreciation generally applies to long-term tangible assets that are used in business and have a limited useful life.
Common examples include:
Machinery
Furniture
Computers
Laptops
Office equipment
Vehicles
Coffee machines
Production equipment
Buildings, excluding land
These assets generally experience use, wear and tear, ageing, or technological obsolescence.
Which Assets Generally Do Not Depreciate?
1. Land
Land is generally not depreciated because it does not normally have a finite useful life in the same way as machinery or equipment.
2. Inventory
Inventory is purchased for sale or consumption rather than being used as a long-term business asset. Therefore, it is not normally treated as a depreciable fixed asset.
3. Investments
Investments such as shares and mutual funds are generally not depreciated. They are accounted for under the relevant rules applicable to those investments.
💡 Aishira Explains
The easiest way to remember this is: Depreciation mainly relates to long-term assets used by a business that have a limited useful life.
What is Useful Life?
Useful life is the estimated period during which an asset is expected to provide economic benefits to the business. It does not necessarily mean that the asset will stop working after that period. An asset may continue to work even after its estimated useful life.
Example
A business may estimate the useful life of different assets as follows:
| Asset | Illustrative Useful Life |
|---|---|
| Laptop | 3–5 years |
| Office Furniture | 8–10 years |
| Coffee Machine | 8–10 years |
| Delivery Scooter | 5–8 years |
These are only illustrations. Actual useful life depends on factors such as:
Nature of the asset
Expected usage
Maintenance
Business conditions
Company policy
Applicable accounting requirements
💡 Aishira Explains
Useful life answers one simple question: "For how long do we expect this asset to provide economic benefits to the business?"
What is Residual Value?
Residual value is the estimated amount that a business expects to receive from an asset at the end of its useful life, after considering disposal-related factors where applicable.
It is also commonly called:
Scrap value
Salvage value
Suppose: Cost of Machine = ₹2,00,000 ; Expected value at the end of useful life = ₹20,000
The ₹20,000 represents the estimated residual value. This amount is important when calculating the depreciable amount.
💡 Aishira Explains
An asset doesn't necessarily become completely worthless after years of use.
You might sell:
An old machine
A used computer
An old vehicle
Second-hand furniture
The amount expected to be recovered at the end of useful life is considered while determining depreciation.
What is a Depreciable Asset?
A depreciable asset is generally a long-term tangible asset that:
Is used in the business,
Has a limited useful life, and
Is expected to provide economic benefits over more than one accounting period.
Examples include:
Machinery
Furniture
Vehicles
Computers
Office equipment
Land is generally not depreciated.
What Causes Depreciation?
Assets do not lose value or usefulness for just one reason. Several factors can contribute to depreciation.
1. Regular Use
The more an asset is used, the more it may experience wear. For example, a coffee machine used throughout the day may experience more wear than one used occasionally.
2. Wear and Tear
Continuous use can gradually reduce the efficiency and condition of an asset.
Examples include:
Worn-out machine parts
Reduced mechanical efficiency
Damaged components
Physical deterioration
3. Passage of Time
An asset becomes older as time passes. Even if it isn't heavily used, some assets may lose usefulness or value because of ageing.
4. Technological Changes
Technology can make existing assets less useful or less competitive. For example, an older computer may still function but become less useful when newer systems offer:
Faster processing
Better storage
Improved software compatibility
Better efficiency
5. Obsolescence
Sometimes an asset becomes outdated because newer alternatives become available. The asset may still work, but businesses may no longer find it economical or useful.
Factors That Affect Depreciation
1. Frequency of Use
An asset used heavily may experience faster consumption of its useful life.
2. Maintenance
Proper maintenance can help an asset remain useful for longer. However, maintenance does not mean that depreciation stops.
3. Technology
Rapid technological changes can reduce the usefulness of certain assets.
4. Nature of the Asset
Different assets have different expected useful lives. A building may provide benefits for decades, while a computer may need replacement much sooner.
5. Useful Life
The estimated useful life directly affects how the depreciable amount is allocated.
6. Residual Value
A higher residual value means a lower amount may need to be depreciated, assuming other factors remain unchanged.
How is Depreciation Recorded in Accounting?
At the end of an accounting period, depreciation is recorded as an expense.
The basic journal entry is:
Depreciation Expense A/c Dr.
To Asset A/c
What does this entry do?
It has two main effects:
It records depreciation as an expense.
It reduces the book value of the asset in the accounting records.
Example of Depreciation Journal Entry
Suppose depreciation on machinery for the year is ₹20,000.
The journal entry would be:
Depreciation Expense A/c Dr. ₹20,000
To Machinery A/c ₹20,000
This means:
Depreciation expense increases by ₹20,000.
Machinery's carrying amount decreases by ₹20,000.
No cash is paid through this entry.
Where Does Depreciation Appear in Financial Statements?
Depreciation affects two important parts of the financial statements.
1. Profit & Loss Account
Depreciation is recorded as an expense. Therefore, it reduces accounting profit.
Example
| Particulars | Amount |
|---|---|
| Revenue | ₹10,00,000 |
| Other Expenses | ₹6,50,000 |
| Depreciation | ₹20,000 |
| Net Profit | ₹3,30,000 |
2. Balance Sheet
Depreciation reduces the carrying amount or book value of the related asset.
Suppose:
Machine Cost = ₹2,00,000
Accumulated Depreciation = ₹20,000
Then: Book Value = ₹1,80,000
| Asset | Amount |
|---|---|
| Machinery at Cost | ₹2,00,000 |
| Less: Depreciation | ₹20,000 |
| Book Value | ₹1,80,000 |
Book Value vs Market Value
Book Value
The book value is the amount at which an asset is carried in the accounting records after considering accumulated depreciation and other relevant adjustments.
Market Value
The market value is the amount the asset could potentially be sold for in the market. These two values can be different.
Suppose: Book Value = ₹1,80,000
The machine might actually sell for: ₹1,70,000 or ₹1,90,000 depending on market conditions. Therefore: Book value does not necessarily equal market value.
Does Depreciation Mean the Asset Has Stopped Working?
No. This is a very common misconception.
An asset can still be:
Functional
Productive
Useful
even after significant depreciation has been recorded. Depreciation is an accounting allocation of cost over useful life. It does not automatically mean: "The asset is broken."
Can a Fully Depreciated Asset Still Be Used?
Yes. An asset can sometimes continue to be used even after its carrying amount has reached zero, provided it remains operational and the accounting treatment complies with applicable requirements.
Therefore: Fully depreciated ≠ unusable
Does Depreciation Reduce Cash?
No, not when depreciation is recorded.
Depreciation reduces:
Accounting profit
Carrying amount of the asset
But it does not create a new cash outflow at the time of recording.
Simple Example
Machine purchased: ₹2,00,000
Cash paid at purchase: ₹2,00,000
Depreciation recorded later: ₹20,000
Additional cash paid because of depreciation: ₹0
Common Mistakes About Depreciation
Mistake 1: Thinking Depreciation Means Paying Again
Depreciation does not mean another payment is made. The cash payment occurred when the asset was purchased.
Mistake 2: Thinking Every Asset Depreciates
Not every asset is depreciated. Land, for example, is generally not depreciated.
Mistake 3: Thinking Depreciation Means the Asset Is Broken
An asset can continue to work even while depreciation is being recorded.
Mistake 4: Confusing Book Value With Market Value
The accounting value of an asset and its market selling price can be different.
Mistake 5: Ignoring Useful Life
Useful life is an important factor in determining how the depreciable amount is allocated.
Mistake 6: Forgetting Residual Value
Residual value may need to be considered when calculating depreciation.
Mistake 7: Thinking Depreciation Reduces Bank Balance
Depreciation is a non-cash expense. It reduces accounting profit, not cash at the time of recording.
Depreciation: One Simple Example
Let's bring everything together.
Suppose a business purchases a machine for: ₹2,00,000
Estimated useful life: 10 years
Estimated residual value: ₹20,000
The amount that needs to be allocated through depreciation is: ₹2,00,000 − ₹20,000 = ₹1,80,000
If the Straight Line Method is used: ₹1,80,000 ÷ 10 = ₹18,000 per year
Therefore:
Cost = ₹2,00,000
Residual value = ₹20,000
Depreciable amount = ₹1,80,000
Annual depreciation = ₹18,000
Book value after one year = ₹1,82,000
This is the basic logic behind depreciation calculation. We'll explore the actual methods of depreciation and their formulas in the next lesson.
Frequently Asked Questions (FAQs)
1. What is depreciation in accounting?
Depreciation is the systematic allocation of the depreciable amount of a long-term asset over its useful life.
2. Why is depreciation recorded?
Depreciation is recorded to allocate the cost of a long-term asset over the periods in which it provides economic benefits.
3. Is depreciation a cash expense?
No. Depreciation is a non-cash expense because recording it does not involve a new cash payment.
4. Which assets are depreciated?
Long-term tangible assets used in business and having a limited useful life are generally depreciated. Examples include machinery, furniture, vehicles, computers, office equipment, and buildings excluding land.
5. Does land depreciate?
Generally, no. Land usually does not have a finite useful life in the same way as depreciable assets.
6. What causes depreciation?
Depreciation may be associated with regular use, wear and tear, ageing, technological changes, and obsolescence.
7. What is useful life?
Useful life is the estimated period during which an asset is expected to provide economic benefits to a business.
8. What is residual value?
Residual value is the estimated amount expected to be recovered from an asset at the end of its useful life.
9. What is the journal entry for depreciation?
The basic journal entry is:
Depreciation Expense A/c Dr.
To Asset A/c
10. Where is depreciation shown?
Depreciation is generally shown as an expense in the Profit & Loss Account and reduces the carrying amount of the related asset in the Balance Sheet.
11. Does depreciation reduce profit?
Yes. Depreciation is an expense, so it reduces accounting profit.
12. Does depreciation reduce cash?
No. Recording depreciation itself does not cause a new cash outflow.
13. What is book value?
Book value is the amount at which an asset is carried in the accounting records after considering accumulated depreciation and other relevant adjustments.
14. Is book value the same as market value?
No. Book value is an accounting value, while market value represents the amount the asset may fetch in the market.
15. Can a fully depreciated asset still be used?
Yes. An asset can continue to operate even after it has been fully depreciated, subject to the applicable accounting treatment.
16. What is a depreciable asset?
A depreciable asset is generally a long-term tangible asset used in business that has a limited useful life and whose cost is allocated over that useful life.
17. What is the Matching Principle?
The Matching Principle is the accounting idea that expenses should be recognised in the same periods as the income they help generate.
18. Why isn't the full cost of an asset recorded as an expense immediately?
Because a long-term asset may provide economic benefits over several accounting periods. Its cost is therefore allocated systematically over its useful life.
19. What is the difference between depreciation and loss of cash?
Depreciation is an accounting expense. It does not represent a new cash payment when recorded.
20. Why is depreciation important?
Depreciation helps businesses allocate asset costs systematically, calculate profit appropriately, and present the carrying amount of long-term assets in financial statements.
Key Takeaways 📌
Let's quickly revise everything we've learned:
Depreciation is the systematic allocation of the depreciable amount of a long-term asset over its useful life.
It is generally associated with assets that have a limited useful life.
Common depreciable assets include machinery, furniture, vehicles, computers, and office equipment.
Land is generally not depreciated.
Depreciation is a non-cash expense.
Recording depreciation reduces accounting profit.
Recording depreciation also reduces the carrying amount or book value of the asset.
Useful life is the estimated period during which the asset provides economic benefits.
Residual value is the estimated amount expected to be recovered at the end of useful life.
Depreciation is related to the Matching Principle because the asset's cost is allocated over the periods in which it provides benefits.
The basic journal entry is:
Depreciation Expense A/c Dr.
To Asset A/c
Book value and market value are not necessarily the same.
A fully depreciated asset can sometimes continue to be used.
The amount of depreciation depends on the method used and factors such as cost, useful life, residual value, and the expected pattern of economic benefit consumption.
What's Next? 🚀
Now you know:
What depreciation is → Why it is recorded → Why it is an expense → Which assets depreciate → Useful life → Residual value → Causes of depreciation → Journal entry → Financial statement impact
But one big question remains:
How do we actually calculate depreciation?
A business cannot simply guess how much depreciation to record every year.
It needs a proper depreciation method.
In the next lesson, we'll explore the major Methods of Depreciation, including:
Straight Line Method (SLM)
Written Down Value Method (WDV)
Units of Production Method
Machine Hour Method
Other commonly discussed depreciation methods
We'll also understand their formulas, calculations, differences, advantages, limitations, and practical examples.
That's where depreciation starts getting really interesting. 📚✨
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