Straight Line Depreciation Calculator

Every firm, from buildings to machinery, equipment, and tools, will have one or more fixed assets that will depreciate or wear out progressively over time. For example, a piece of corporate machinery purchased in 2015 would have depreciated by 2022. That is the essence of depreciation.

Bad debts, depletion, and depreciation of the company’s assets are all important deductions to make while determining a business’s contra account. Knowing how to calculate the depreciation of your company’s fixed assets is crucial for writing off the cost of expensive items and effectively calculating your taxes.

Depreciation can be calculated using one of three methods. Nonetheless, the straight line depreciation technique is commonly utilised due to its simplicity and functionality in determining the depreciation of assets used throughout time without a specific pattern.

The straight line depreciation method is highly recommended for calculating a company’s asset depreciation because it is the simplest method and produces the fewest calculation errors.

What exactly is straight-line depreciation?

Straight line depreciation reduces the value of an asset steadily over time until the salvage value is achieved. The depreciation value is always constant across the asset’s useful life with this method since it is assumed that the assets are functioning and offer the same amount of benefit to the organisation over their useful life.

Every day, month, and year, a firm building, for example, is used evenly and consistently. As a result, the depreciation value reflected on the company’s income statement will be the same for the entire useful life of the building.

How to Determine Straight Line Depreciation

The straight line depreciation method can be used to calculate the depreciation of a firm asset by following the steps below:

Determine the cost or price of acquiring the fixed asset.
Determine the asset’s projected or estimated useful life.
Subtract the asset’s estimated salvage value from its purchase price. This will result in the depreciable asset cost.
Divide the depreciable asset cost by the projected number of years the asset will be in use. This will calculate the annual depreciation.

What is the Straight Line Depreciation Calculation Formula?

The straight line depreciation formula is as follows:

Straight line depreciation = (cost of asset – projected salvage value) x asset’s expected useful life


The initial purchase or construction cost of the asset, as well as any linked capital expenditure, is referred to as the cost of asset.

Estimated Salvage Value is the scrap or residual proceeds expected from the disposal of a firm asset after the asset’s usable life has expired.

The expected useful life of an asset is the time or period during which an asset is regarded to be useful and functioning from the date of first use to the date of termination of use or disposal. The useful life is frequently represented in months or years.

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