A Complete Guide to Understanding Amortisation Schedules

A Complete Guide to Understanding Amortisation Schedules

Personal Loan

5 min read  |  3 months ago


When you use personal loan calculators, you’re doing more than just getting an estimate of your monthly payments. They give you a glimpse into how amortisation schedules work by breaking down each payment into portions that go toward principal and interest. It helps you understand how your loan balance will change over time and how different factors, like the loan term or interest rate, impact your overall costs. Let’s get into the working and calculation of amortisation schedules and see how they can be valuable for managing your personal loan effectively.


What is an amortisation schedule?

The schedule provides a complete view of each payment, illustrating how much remains to be paid and when the loan will be fully repaid. This breakdown helps borrowers understand the repayment journey, giving a clear picture of how the loan balance decreases over time. The specific allocation of principal and interest changes with each instalment, reflecting the dynamic nature of loan repayment.

Amortisation schedules are typically used for fixed-rate loans, such as personal loans, mortgages and auto loans, where payments are consistent, but the interest and principal portions vary. This structured repayment process can help borrowers plan their finances effectively and stay informed throughout the loan term.​


The calculation of loan amortisation 

Calculating loan amortisation involves breaking down a fixed monthly payment into portions that cover both the principal and interest. Here’s a basic overview of how it’s done:


1.Determine the monthly interest rate: First, convert the annual interest rate to a monthly rate by dividing it by 12. For example, if your loan has an annual interest rate of 6%, the monthly rate is 0.5% (6% / 12).


2.Calculate the monthly payment amount: The monthly payment is calculated using a standard formula for fixed-rate loans:


M = P x [r(1+r)n /(1+r)n-1]

M is the monthly payment.

P is the principal loan amount.

r is the monthly interest rate (annual rate divided by 12).

n is the number of payments (loan term in months).


3.Break down each payment: For each payment, the interest portion is calculated by multiplying the remaining loan balance by the monthly interest rate. The remaining part of the payment goes toward the principal. This process is repeated each month, with the interest portion decreasing as the principal is reduced. 


4.Adjust over time: As payments are made, the loan balance decreases, which, in turn, reduces the interest portion of future payments. Over time, more of each payment is allocated toward the principal, accelerating the reduction of the outstanding loan balance​. 


What does the amortisation schedule consist of? 

An amortisation schedule typically includes several key columns that break down each loan payment in detail. Here’s what each one covers:


Payment Number: This column lists the sequential number of each payment from the first to the last. It helps you track progress over the loan term, whether monthly or bi-weekly.


Payment Date: This column specifies the due date for each payment. It keeps you on schedule by showing when each instalment is expected, which can be particularly helpful for budgeting.


Payment Amount: Here, you’ll find the total amount due each period. For fixed-rate loans, this amount stays the same, making it easier to plan your finances. It includes both principal and interest.


Interest Portion: This column details how much of each payment goes toward interest. Early payments typically cover more interest, but this portion decreases over time as the loan balance shrinks.


Principal Portion: This indicates how much of each payment reduces the principal loan balance. As you progress, this portion increases, showing that more of each payment goes toward paying down the loan rather than covering interest.


Remaining Balance: This column shows the loan balance after each payment. It allows you to see how much you still owe at any point in time, gradually decreasing until the loan is fully repaid.


Importance of amortisation schedule 

An amortisation schedule offers several benefits, providing valuable insights and practical advantages for managing your loan:


By laying out the entire payment schedule, it aids in budgeting and financial planning. Knowing your monthly payment amounts and how they change can help you manage your finances better and prepare for each instalment without surprises.


The schedule is especially useful if you’re considering making extra payments or paying off the loan early. It shows how additional payments impact the balance and interest, helping you make informed decisions about prepayments and saving on interest costs.


With a detailed schedule, you can compare different loan offers and repayment terms more effectively. Seeing how various interest rates and loan terms affect your monthly payments and total interest makes it easier to select the loan that best fits your needs.


An amortisation schedule provides transparency, so you understand exactly how your loan is structured. This clarity can reduce stress and eliminate uncertainties, ensuring there are no hidden surprises in your repayment plan​. 


Summing Up

Understanding how your loan balance changes throughout the repayment period helps you anticipate financial commitments and avoid surprises. An amortisation schedule reveals these changes clearly, allowing you to see how each payment affects your outstanding balance. This awareness is especially useful if you’re considering options like refinancing or early payoff, as you’ll know exactly where you stand.

At Unity Small Finance Bank, we prioritise transparency and provide the resources you need to navigate your loan with confidence. Our team is here to support you every step of the way, helping you stay informed and in control. Explore our personal loan options today and take the first step toward a well-managed financial future.



About Unity Small Finance Bank

Unity Small Finance Bank is committed to making banking simpler and more accessible for everyone. Our services include Savings AccountNRI accountCurrent AccountFixed Deposits, and Personal Loans offering flexible tenures and attractive interest rates. We also offer financing options like MSME Loans and Microfinance to support businesses and underserved communities. Learn more about Unity Small Finance Bank here.