What is the Meaning of Amortisation?

 

Amortisation (also spelled "Amortization") is the process of gradually writing off the cost of an intangible asset (or a loan) over its useful life or repayment period, spreading the expense systematically across multiple accounting periods rather than recognizing it all at once.

In simple terms: It's essentially "depreciation for intangible assets" — a way of reducing the book value of an asset over time to reflect its consumption, expiry, or use, and matching that cost against the revenue it helps generate.

Amortisation has two main uses in finance/accounting:

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1. Amortisation of Intangible Assets

This refers to spreading the cost of an intangible asset (like a patent, copyright, trademark, or software) over its useful life.

Examples:

·         A patent costing ₹10,00,000 with a useful life of 10 years → ₹1,00,000 is charged as an expense (amortised) each year

·         Software purchased for business use, written off over its expected years of utility

·         Leasehold property – cost spread over the lease period

Why: Since intangible assets provide benefits over several years, charging the entire cost in the year of purchase would distort that year's profit. Amortisation matches the cost to the periods that benefit from the asset (the matching principle).

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2. Amortisation of a Loan

This refers to the process of paying off a loan (principal + interest) through scheduled, periodic payments (usually equal installments, called EMIs) over the loan's tenure, until the debt is fully repaid.

Example: A home loan of ₹50,00,000 repaid over 20 years through monthly EMIs — each EMI includes a portion toward interest and a portion toward principal repayment. This gradual repayment schedule is called an amortisation schedule.

Amortisation vs. Depreciation vs. Depletion:

Term	Applies to	Example
Depreciation	Tangible fixed assets	Machinery, buildings, vehicles
Amortisation	Intangible assets / Loans	Patents, trademarks, software, loan repayment
Depletion	Natural resources	Mines, oil wells, forests

Amortisation Schedule (loan context) – how it typically works:

Component	Behavior over time
Interest portion	Higher in early years (calculated on larger outstanding principal), decreases over time
Principal portion	Lower in early years, increases over time
Total EMI	Usually remains constant (in equal installment loans)

In accounting/financial statements:

·         Amortisation of intangible assets is charged as an expense in the Profit & Loss (Income) Statement, similar to depreciation

·         It reduces the carrying value of the intangible asset on the balance sheet over time

·         For loans, amortisation reduces the outstanding loan liability over time as principal is repaid

Why it matters: Amortisation ensures accurate financial reporting by:

·         Matching the cost of an asset to the periods it benefits (avoiding overstatement of profit in the year of purchase)

·         Providing a clear picture of how a loan balance reduces over time, helping in cash flow and repayment planning

Quick example: If a company acquires a patent for ₹5,00,000 with a legal life of 5 years, it will amortise ₹1,00,000 per year as an expense, reducing the patent's book value by that amount each year until it reaches zero (or its residual value) at the end of year 5.