Depreciable Assets: Why is it important to consider Depreciation in accounting?

What is Depreciation and Why Do Accountants Care

When a company purchases machinery or vehicles, the money doesn’t disappear immediately but gradually loses value over the years. Depreciation is an accounting process used to record this reduction in value. Accountants deduct the cost of assets each year to match the period during which the asset generates revenue for the business.

The important thing to note is that depreciation is not an actual cash payment but an expense recorded in financial reports. Additionally, there is Amortization, which functions similarly but applies to intangible assets such as patents and copyrights.

Understanding Depreciation from Two Perspectives

First perspective: Asset value decreases over time. Newly purchased machinery has a high value, but the longer it is used, the older it becomes.

Second perspective: Allocate the initial cost of the asset across its useful years. For example, if you buy a laptop for 100,000 THB and expect it to last 5 years, this amount becomes an annual expense in the books.

When accountants prepare budgets or financial reports, depreciation is recorded as a fixed cost (unless a special calculation method that varies with usage is applied).

How Does Depreciation Affect Profit and Taxes

Depreciation is a key factor in calculating EBIT (Earnings Before Interest and Taxes). When you deduct depreciation from revenue, net profit decreases. This is why investors need to be cautious when comparing companies with many assets versus those with fewer.

The difference between EBIT and EBITDA is that EBITDA adds back depreciation and amortization to income, providing a clearer picture of the company’s actual cash generation.

• EBIT = Profit before interest and taxes (minus depreciation)
• EBITDA = Profit before interest, taxes, depreciation, and amortization (before all deductions)

Which Assets Are Depreciable

The Revenue Department sets clear criteria for assets eligible for depreciation. The main conditions are threefold:

1. Asset is owned by you and used in business – must be used to generate income
2. Has a defined useful life – cannot be used forever
3. Expected to last more than 1 year – temporary assets are excluded

Most common depreciable assets:

• Vehicles and hotel cars
• Buildings and similar properties
• Machinery and factory equipment
• Computers and technology devices
• Intangible assets like patents, copyrights, and software

Assets that cannot be depreciated:

• Land (because it does not deteriorate)
• Collectibles such as art or coins
• Securities like stocks and bonds
• Personal property
• Assets with a lifespan less than 1 year

4 Popular Methods of Calculating Depreciation

1. Straight-line Method(

This is the simplest and most widely used method. You divide the asset’s cost evenly over its useful life.

Example: A company buys a car for 100,000 THB, expected to last 5 years. The annual depreciation is 20,000 THB, calculated as )100,000 ÷ 5 = 20,000(.

Advantages:

• Easy to implement with minimal errors
• Suitable for small businesses with simple accounting systems

Disadvantages:

• Does not account for rapid loss of value in the short term
• Ignores increasing maintenance costs as the asset ages

) 2. Double-Declining Balance Method###

This method accelerates depreciation, recording larger expenses in the early years and decreasing over time. It is suitable for businesses seeking quicker cost recovery.

Advantages:

• Helps offset rising maintenance costs
• Maximizes tax deductions in initial years

Disadvantages:

• Less beneficial if the company already has tax losses

( 3. Declining Balance Method)

The asset’s value is depreciated at twice the straight-line rate, resulting in high expenses initially, then tapering off.

4. Units of Production Method(

Depreciation is based on actual usage, such as hours operated or units produced.

Suitable for: Machinery with measurable output and requiring precise depreciation.

Advantages: Accurate reflection of depreciation based on actual usage

Disadvantages: Difficult to estimate total units before the asset’s end of life

What is Amortization and How Does It Differ from Depreciation

Amortization is the process of gradually reducing the book value of a loan or intangible asset over time. It is generally applied to:

• Loans: mortgages, car loans, personal loans
• Intangible assets: patents, copyrights, trademarks

When repaying a loan, the interest portion is higher at the start and decreases over time, while the principal increases.

Examples of amortization:

• Asset: Patent costing 10,000 THB with a 10-year life → amortized at 1,000 THB per year
• Loan: Borrowed 10,000 THB, repaid 2,000 THB annually → amortized at 2,000 THB per year

Main Differences: Depreciation vs Amortization

Why Depreciation Is Important for Financial Analysis

Understanding depreciation and amortization helps investors interpret financial statements more deeply. Large assets generate high depreciation, which reduces net profit even if the company is performing well. However, EBITDA provides a clearer view of actual cash flow.

Whether small or large, proper depreciation management is key to effective financial planning and tax optimization.