- Published on: 15 May 2026
- Last updated on: 15 May 2026
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Interest rate is one of the most important factors to consider when applying for a personal loan. A lower interest rate can help reduce the total repayment amount over the loan tenure. However, lenders may present interest rates in different ways. Some loans display the rate on a per annum basis, while others mention it per month, which can sometimes create confusion for borrowers.
Understanding the difference between personal loan interest rates per month and annual interest rates is important when reviewing a loan offer. In this guide, you will learn how these interest rates work and how to understand them clearly before applying for a personal loan.

The annual interest rate on a personal loan is the rate charged on the loan amount over a year. Many lenders present interest rates on an annual basis, as it helps borrowers understand the cost of borrowing over the loan tenure.
For example, if a personal loan has an interest rate of 12% per annum, the interest is calculated annually on the loan amount. However, this does not mean the entire interest is paid at once, as it is usually paid gradually through monthly Equated Monthly Instalments (EMIs).
In some cases, the annual interest rate may be shown as Annual Percentage Rate (APR), which can reflect the overall cost of the loan.
The monthly interest rate is the interest charged on a loan each month instead of being expressed on a yearly basis. Some personal loan offers may present the personal loan interest rate per month to show how much interest is applied during each monthly cycle.
For example, a loan may mention an interest rate of 1% per month. When expressed on a yearly basis, this would be 12% per annum. Understanding how the personal loan interest rate per month translates into an annual rate helps borrowers clearly understand the cost of borrowing and how interest is applied over the loan tenure.

Banks or Non-Banking Financial Companies (NBFCs) may present interest rates in monthly or annual terms for different reasons. Understanding this helps borrowers interpret loan offers more clearly.
1. Annual Interest Rates are Standardized
Interest rates are commonly expressed on an annual basis. This format provides a clear view of the cost of borrowing over a full year and helps borrowers understand the overall interest charged on the loan.
2. For EMI Calculation
Since personal loans are usually repaid through monthly EMIs, the annual interest rate is often converted into a monthly rate to calculate the interest component in each instalment. To calculate your personal loan EMI, use our Personal Loan EMI Calculator.
3. Different Ways of Presenting Loan Terms
Some loan offers may mention the personal loan interest rate per month to explain how interest is applied during each monthly repayment cycle. Understanding both formats helps borrowers clearly interpret the loan terms.
To compare personal loan interest rates, you must convert the personal loan interest rate per month into an annual interest rate. All you have to do is multiply the personal loan interest rate per month by 12.
For example:
However, paying interest on a loan is not this simple in real life. Most loans use a reducing balance method. Under a reducing balance method, interest is calculated based on the remaining balance in a loan account. Therefore, the interest rate may vary slightly from one month to another.

The monthly interest rate on a personal loan is a key factor in determining your EMI. In the initial stages of your loan repayment, a larger part of your EMI is used to pay the interest on your personal loan. However, over time, the principal repayment component increases as the outstanding loan amount reduces.
For instance, when you take a large loan and are required to pay it over a five-year period, the initial instalments are mostly interest. However, closer to the end of the loan repayment period, a larger share of your EMI is allocated to the principal repayment.
The interest rates charged on personal loans vary. There are many factors that affect the interest rates charged by a lender.
Credit Score
People with higher credit scores are likely to receive lower interest rates and larger loan amounts on personal loans.
Job and Income
Your job and income directly affect your ability to repay the loan. Stable employment and consistent income are important factors that lenders may consider when determining the interest rate on your personal loan.
Loan Amount
Sometimes, the longer the tenure of your personal loan, the higher the interest rates charged on your personal loan.
Relationship with Lender
If you already have an existing relationship with a lender, such as previous borrowing history, it may influence the loan terms offered to you, or you can even get a pre-approved personal loan offer.
If you’re applying for a personal loan, then you should know the difference between monthly and annual interest rates. Monthly interest rates are calculated monthly, and annual interest rates are calculated annually. Banks or NBFCs use both of these interest rates interchangeably for clarity.
However, make sure you consider the annual interest rate of a personal loan rather than the monthly rate. It will help you manage your finances better and understand the actual cost of the personal loan. DMI Finance offers personal loans of up to ₹10 lakhs at low interest rates, with flexible repayment terms of up to 48 months. Click here to apply.

1. Does a monthly interest rate always mean the loan is cheaper?
No. A lower-looking monthly rate may still translate into a higher annual cost when properly converted.
2. Can two lenders offer the same monthly rate but different total loan costs?
Yes. Fees, loan tenure, and compounding methods can affect the total repayment amount.
3. Is interest on personal loans calculated on the full loan amount every month?
Usually no. Most lenders calculate interest on the reducing balance, meaning it decreases as you repay the loan.
4. Do personal loan interest rates change after the loan is approved?
Most personal loans have fixed rates, but some lenders may offer floating rates that can change over time.
5. Does choosing a shorter loan tenure reduce interest costs?
Yes. A shorter tenure usually means you pay less total interest, although your EMI will be higher.
6. Can negotiating with the lender help lower the interest rate?
In some cases, yes. Borrowers with strong credit profiles may be able to negotiate better loan terms.
7. Do prepayments reduce the total interest on a personal loan?
Yes. Paying part of the loan early reduces the outstanding balance and lowers future interest charges.
8. Why do some loan ads highlight monthly rates instead of yearly rates?
Monthly rates appear smaller, which can make the loan seem more attractive at first glance.
9. Can using an EMI calculator help compare loan offers more accurately?
Yes. It allows you to estimate monthly payments and total interest across different loan options.
10. Does applying for multiple personal loans affect the interest rate offered?
Yes. Multiple applications can impact your credit score, which may lead to higher interest rates.