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March 16, 2026

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What Is Amortisation? Meaning, Formula, and Examples

Suppose you want a gaming laptop and a new car, but it is beyond your budget. You would need to stash your savings for a very long time or borrow and pay it back in small, more manageable "bites."In money terms, those bites are called amortisation. It is the process of spreading out the cost of something—like a big bank loan or an expensive business patent—over a long period of time. This article is a guide to amortization focusing on its meaning, how to calculate it, examples and importance, as instead of one giant financial headache, you get a predictable schedule of payments.

About Amortization

It is a simple way of spreading a cost over time instead of paying everything at once. When you take a loan, you repay it through regular monthly payments called EMIs. Each EMI includes two parts: interest, which is the cost of borrowing money, and principal, which slowly reduces the loan amount. Amortization is also used for intangible assets like software, patents, or trademarks. Instead of showing the full cost as an expense in one year, businesses spread it across the years the asset is useful. This makes expenses more manageable and can also help reduce taxable income

Calculation of Amortisation

Amortisation of a loan

When you're dealing with a loan, like for a car or a house, you pay the bank back in monthly chunks called EMIs. Each payment you make is actually split into two parts: one part is the interest, and the other part is the principal! But as time goes on, the interest part gets smaller and more of your money goes toward paying off the actual loan. The formula to calculate monthly EMI is ;

‍

P = Loan amount

r = monthly rate of interest, i.e., annual rate ÷ 12

n = Total number of monthly instalments

EMI = Amount you pay every month

Amortisation of intangible assets

For businesses, it works a little differently with things like copyrights or software. Since these aren't physical objects you can drop on your foot, they're called intangible assets. If a company spends on copyright, they’ll use it for a period of years; they don't just count it as a giant loss on day one. Instead, they divide the cost by the number of years they’ll use it. The formula to calculate yearly amortisation is;

Examples of Amortisation

Amortisation is a way of breaking a huge cost into smaller, bite-sized pieces so it’s easier to handle. You usually see this happen with bank loans or when companies buy things that aren't physical, like a patent or a piece of software. Let's understand more about amortisation with some easy examples.

Home Loan: Let’s consider the case of taking a home loan of ₹45 lakhs at an interest rate of 10.5% per annum for 18 years. Though the EMI every month will be the same amount, the way it is spent changes every year. When one first starts taking a home loan, the major portion of the EMI will go to the interest part, whereas the minor part will be allocated to the loan amount.

Education loan: Suppose you have taken an education loan of Rs 10 lakh, and when repayment starts of paying this loan each EMI reduces the loan bit by bit until it is fully paid.

Business loan: A small business takes a loan of Rs 15 lakh for 8 years. The company spread it over 15 years. The full amount helps the owner understand how much money goes toward interest and how much is reduced by the loan every month, helping with better cash planning.

Patent amortisation: A company purchases a patent for ₹4,20,000 that will be useful for 14 years. Each year, ₹30,000 is recorded as amortisation expense, slowly reducing the patent’s value in the books.

Trademark amortisation: A business buys a trademark for ₹1,60,000 with a useful life of 8 years. Every year, ₹20,000 is written off as amortisation.

Also, read about the education loan tax benefit

Example of Calculation

Example 1 : Suppose you take a home loan of ₹8,00,000 at an annual interest rate of 7.5% for 5 years.

Using the formula,

First, the annual interest rate needs to be converted into a monthly rate:

And r, which is the monthly rate vales comes out = 7.5% ÷ 12 = 0.00625

Next, determine the total number of monthly payments: n = 5 years x 12 months =60 months

P, which loan amount =Rs 8,00,000

Substituting the values in the equation

EMI=7270/0.454=Rs Rs 16035

Once the EMI is known, one can calculate Interest = Outstanding loan × r, Principal paid = EMI − Interest and New balance = Old balance − Principal paid

Example 2: Suppose you buy a copyright for ₹1,00,000 and plan to use it for 10 years.

In order to find the yearly amortization we use this formula,

So putting the values in the formula,

₹1,00,000 ÷ 10 = ₹10,000 per year .This means every year, ₹10,000 is shown as amortisation expense

Why Amortisation is actually useful

No more guessing: It tells you exactly what you owe every month. This makes it super easy to plan your budget so you don't run out of pocket money for other stuff.
Total cost clarity: It reveals the total interest you’ll end up paying. It’s better to know now than to be shocked by the total price tag years later.
Buying used stuff: In the real world, it helps you figure out the fair price for a used laptop or car. You can estimate how much life is left in the item compared to what it cost new.
Saving for upgrades: It helps you guess when your gadgets might die, so you can start saving up for a replacement before your current one even breaks.
Decision making: It helps you decide if a loan is a bad idea. For example, if you're still paying for a phone after it’s broken or outdated, amortisation helps you realise that maybe the loan wasn't worth it.
No huge bills at once: Because the payments are the same every time, you don't have to worry about a giant bill hitting you all at once at the very end of the loan.

Conclusion

Overall, Amortization is basically just a roadmap for your money. Whether you're a business owner writing off a trademark or a student paying back an education loan, it helps turn "impossible" price tags into "possible" monthly steps. By knowing how much goes to interest versus the actual loan, you can take control of your debt instead of letting it control you

Checkout Swipe’s: EMI Calculator

FAQs

1. Why do we need a formula for amortization?

It helps you figure out if you can actually afford to buy something big without going broke, and also helps in determining how much money you’ll have left for snacks, clothes and also spot the perfect time to pay a little extra so you can kill the debt early.

2. What is the distinction between Amortisation and Depreciation?

Depreciation is for Touchables, which is for physical things (Tangible Assets), such as a car, a computer, a delivery truck, and the like. Depreciation is for things you can touch. Amortisation is for Untouchables: This is for things you cannot touch with your hands (intangible assets).

3. What exactly is an amortisation rate?

It tells you what part of the total loan or asset is being paid off every year. If you have a 10-year plan, your rate might be 10% a year. It’s just a way to see how fast you’re chipping away at the total cost.

4. What kind of assets get amortised?

Trademarks: Like a famous logo or brand name.

Patents: A legal rule that says nobody else can steal your invention.

Goodwill: Excess value enjoyed by a business because people admire and trust. Copyrights: Rights to Songs, Movies, or Books.

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