Every fixed asset a business owns—like machines, vehicles, or furniture—loses value over time. This drop in value is called depreciation. But how do we track the total depreciation of an asset over the years? That’s where accumulated depreciation comes in.
In this blog, we’ll define accumulated depreciation, explain the accumulated depreciation formula, discuss its account type, and show you a practical example to make it all clear.
Accumulated depreciation is the total amount of depreciation recorded against an asset since it was purchased. It is not a one-time entry but rather a running total of all depreciation expenses recorded over the asset’s life.
If a business has been depreciating a machine for 3 years at ₹10,000 per year, the accumulated depreciation at the end of year 3 would be ₹30,000.
This amount is subtracted from the asset’s original cost to calculate its book value or what it’s currently worth on paper.
Now, you may wonder—what type of account is accumulated depreciation?
It is a contra-asset account. That means it appears on the asset side of the balance sheet but carries a credit balance. It reduces the total value of fixed assets, helping businesses reflect the actual value of assets after depreciation.
Item | Value (₹) |
---|---|
Original Cost of Machinery | 1,00,000 |
Accumulated Depreciation | 40,000 |
Net Book Value | 60,000 |
Although it appears with assets, the accumulated depreciation account works like a liability because it holds a credit balance.
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The formula to calculate accumulated depreciation is straightforward. It depends on the depreciation method you choose. The most common one is the straight-line method.
Accumulated Depreciation = (Cost of Asset – Salvage Value) × Number of Years Used / Useful Life
Where:
Let’s say a company purchases a delivery van for ₹5,00,000. The van is expected to have a useful life of 5 years and a salvage value of ₹50,000.
Step 1: Calculate annual depreciation
₹(5,00,000 – 50,000) / 5 = ₹90,000
Step 2: After 3 years, accumulated depreciation = ₹90,000 × 3 = ₹2,70,000
Net book value after 3 years = ₹5,00,000 – ₹2,70,000 = ₹2,30,000
This amount will be shown under accumulated depreciation in the books, reducing the value of the asset.
Understanding and tracking accumulated depreciation is essential for:
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Accumulated depreciation helps businesses reflect the true value of their fixed assets over time. Managing your books becomes much easier once you define accumulated depreciation, understand the formula, and know the account type it falls under.
It ensures better asset tracking, supports financial transparency, and helps meet tax obligations efficiently.