Flat or reducing rate: how can you tell which quote really costs less
The quote that costs less is the one with the lower reducing-equivalent rate and the lower total payable. The words "flat" and "reducing" on the quote do not tell you this. A flat 12% looks cheaper than a reducing 20%, but the flat 12% is the more expensive of the two. A flat quote can still beat a reducing one when the reducing number is high enough.
- Flat rate: interest is charged on the original loan amount for every month of the tenure, even as the debt shrinks.
- Reducing balance rate: interest is charged only on the amount still owed after each EMI. The rest of this page calls it the reducing rate.
- A fair comparison uses the same amount received, the same tenure and the total payable including fees.
The table compares three quotes on ₹1,00,000 over 12 months. No fees are assumed. Please note that this is an example, not an offer.
Quote A has the smallest number on paper, but it costs more than Quote B. It still costs less than Quote C. Only the converted rate and the total payable put the three quotes in the right order.
How do you calculate EMI using a flat interest rate?
On a flat rate, total interest is fixed on the first day. It equals the loan amount × annual rate × years. The EMI is then the loan amount plus that interest, divided by the number of months.
- Total interest = P × R × (n ÷ 12)
- EMI = (P + total interest) ÷ n
Here P is the loan amount and R is the annual flat rate as a decimal, so 12% is 0.12. The tenure in months is n, and n ÷ 12 turns it into years.
Take ₹1,00,000 at 12% flat for 12 months. This is an illustration, not an offer. Total interest is ₹1,00,000 × 0.12 × 1 = ₹12,000. The EMI is ₹1,12,000 ÷ 12 = approximately ₹9,333, and total repayment is ₹1,12,000.
"Flat" describes how interest is calculated. It does not mean the rate is fixed and cannot change.
How to calculate EMI using the reducing balance method?
A reducing balance EMI comes from the annuity formula. Each equal instalment covers that month's interest on the outstanding balance, and the rest pays down principal:
Here r is the monthly rate, which is the annual rate ÷ 12 as a decimal, and n is the number of months.
Use the same ₹1,00,000 and 12-month tenure at Quote B’s 20% reducing rate. This is an illustration, not an offer. The monthly rate is 0.20 ÷ 12 = 0.016667, and (1 + r)^12 = 1.21939. The estimated EMI is ₹9,263.44, total repayment is about ₹1,11,161 and total interest is about ₹11,161. Rounding may create a small difference in the final instalment.
In each reducing-balance EMI, interest is calculated first on the outstanding principal, and the remaining amount reduces principal. In this example, the first EMI includes about ₹1,666.67 in interest on the full amount. By the final EMI, the interest component falls to about ₹151.86 because only about ₹9,112 remains outstanding.
How do you convert a flat rate into its reducing-balance equivalent?
To find the reducing-balance equivalent of a flat rate, use the loan amount, EMI and tenure from the flat-rate quote. Then find the reducing rate that gives the same EMI over the same number of months. There is no fixed multiplier that works for every loan because the result changes with the flat rate, tenure and repayment frequency.
Every row in the table below uses ₹1,00,000. This is an illustration, not an offer.
The multiplier depends on two things: tenure and rate level.
- Short tenures: on a three-month loan, the balance barely has time to shrink, so the gap is smaller.
- Long tenures: on a five-year loan, the multiplier drops back towards 1.7.
- Higher rates: a higher flat rate also pulls the multiplier down, as the 24% row shows.
A “double the flat rate” shortcut can overstate the equivalent reducing rate. Even the 1.7 to 1.85 range shown in common examples is only a rough observation, not a conversion rule. Calculate the exact equivalent for the offer being assessed.
Is 1% per month the same as 12% per year?
Yes, 1% per month is 12% per year, but only as a nominal rate, which is simply the monthly rate × 12. With monthly compounding, 1% a month works out to about 12.68% a year. In the same way, 1.5% a month is 18% nominal and about 19.56% compounded.
On loan papers, "p.m." means per month and "p.a." means per annum, or per year. A "p.m." figure needs the same question as any other rate: is it flat or reducing?
If 1% p.m. is a flat rate, it is 12% flat per year. On a 12-month loan, that equals about 21.5% reducing, which is far above 12.68%. A monthly figure that does not say how it is applied can understate the cost more than any other wording.
How can you check a loan offer using three figures from your papers?
You need three numbers to check an offer:
- the amount actually credited to your bank account;
- the EMI;
- the number of EMIs.
Type =RATE(months, -EMI, amount)*12 into any spreadsheet. The result is the nominal annual reducing rate you are really paying, whatever label the offer uses.
Here is an example. A loan is sanctioned for ₹1,00,000 at 20% reducing for 12 months, with an EMI of about ₹9,263. A ₹3,000 fee is deducted at disbursal, so ₹97,000 reaches the borrower’s account.
- Enter =RATE(12, -9263, 97000)*12. The spreadsheet returns about 25.9%.
- Check it by hand. The monthly rate is 25.9% ÷ 12, about 2.16%. Put r = 0.0216 and n = 12 into the reducing EMI formula, with P = ₹97,000. The EMI comes out at about ₹9,263, which matches the papers.
Fee deducted at disbursal. The lender calculates the EMI on the sanctioned amount, but you receive less. The EMI remains unchanged, while the real rate on your money goes up.
The same EMI does not mean the same loan cost. Suppose two offers on ₹1,00,000 both show an EMI of ₹5,090. One runs for 24 months, with a total repayment of ₹1,22,160. The other runs for 30 months, with a total repayment of ₹1,52,700. Comparing the EMI alone hides ₹30,540 of additional cost. An extra fee can create a similar difference.
What else changes the real cost besides the interest rate?
The real cost of a loan depends on four things together:
- the interest method;
- the rate;
- every fee;
- the amount you actually receive.
These charges can move the total away from what the headline rate suggests:
- Processing fee: a one-time charge for setting up the loan. It is often deducted from the amount disbursed, which lowers what you receive.
- Broken-period interest: interest for the days between disbursal and the start of the first EMI cycle. It is why the first EMI can be larger than the rest, or why some interest is deducted upfront.
- Late-payment charge: applied when an EMI is not paid by its due date.
- Prepayment or foreclosure charge: applied when you repay part or all of the loan before the tenure ends.
To assess the full cost of a specific loan, compare the total of all EMIs and applicable charges with the net amount received. Review the KFS for the annualised interest rate, APR, processing fee, other charges and total repayment.
Paying off early: what you save under flat and reducing methods?
On a reducing-balance loan, a part-prepayment lowers the outstanding principal on which future interest is calculated, so the saving is direct. The actual saving depends on the timing, amount, remaining tenure and any applicable prepayment charge.
Take Quote B, an illustration rather than an offer. After the 6th EMI, the balance is about ₹52,477. The six remaining EMIs would add up to about ₹55,581. Closing the loan at that point avoids about ₹3,103 of interest, before any foreclosure charge.
Under a flat-rate structure, the contractual interest is calculated on the original principal. The saving on early closure depends on the agreement, the rebate or adjustment method used by the loan provider and any applicable prepayment charge. Request a foreclosure statement before paying.
Before deciding to prepay, ask the lender for two documents:
- the foreclosure statement;
- the interest and principal split of the EMIs paid so far.
Between them, they show the exact amount needed to close the loan and how much interest you would actually avoid.
What should you review before signing the loan agreement?
Before signing, review the KFS and loan agreement. They should clearly show:
- the annualised interest rate;
- how the rate is applied, flat or reducing;
- net disbursal, repayment schedule and every applicable charge.
The terms are given to you in a language you understand. If a charge changes later, the change applies only going forward, and the lender announces it to you.
Look for the one-page summary of terms you receive before signing. Take the amount received, the EMI and the number of EMIs from it, then run the three-number check above. The rate you get should match what the summary shows.
How is interest calculated on a RupeeRedee personal loan?
The rate and every charge for a RupeeRedee personal loan are stated in the personalised KFS. The KFS also states how interest is applied to your loan. Then use the net amount received, EMI and number of instalments to perform the spreadsheet check. It shows the real reducing rate and the total payable on your offer.
RupeeRedee loans are issued by FincFriends Private Limited, an RBI-regulated NBFC.
Loan amount and tenure: The amount ranges from ₹2,000 to ₹2,50,000, and the tenure from 2 to 24 months. On the same amount, a longer tenure lowers the EMI but raises the total payable. A shorter tenure does the opposite.
Charges. The full cost of your loan, with every charge, is stated in your KFS. These are the charges to look for:
- processing fee (GST included): 1.5% to 15% of the loan amount, deducted at disbursal; a service charge, GST included, is also collected with each EMI;
- late-payment charge: as stated in your KFS;
- prepayment or foreclosure terms: as stated in your KFS.
The processing fee is deducted from the amount disbursed. The summary of terms or KFS shows the exact deduction and the net amount credited.
Who can apply and how is a RupeeRedee loan issued?
A RupeeRedee loan depends on a credit check and an income assessment. Together, they decide whether an offer is made, and for what amount and tenure. Applying does not guarantee a loan.
You'll need to meet the age and residency criteria shown when you apply. You also need a bank account in your own name and KYC documents that confirm your identity and address.
Income can come from a salary, self-employment or gig work. What the assessment looks at is whether that income can be shown and whether it covers the EMI alongside your existing commitments.
The loan is issued in these steps:
- Online application.
- Document upload.
- Credit and income assessment.
- Review of the summary of terms.
- Signing.
- Disbursal to your bank account.
An application may be declined, or a smaller amount offered, for several reasons:
- the credit history shows missed payments or heavy existing borrowing;
- the income looks too low for the requested EMI;
- the documents do not match the details entered;
- some information cannot be verified.
How do you repay your EMIs?
Each EMI falls due on the date stated in the KFS and repayment schedule. Payment is collected through the approved method listed in the agreement. Keep sufficient funds in the linked bank account before the due date.
A late payment may attract late-payment or payment-return charges and may affect the borrower’s credit profile. The applicable charges are stated in your KFS.
To prepay or close the loan early, ask for a foreclosure statement first.
If you can see that a payment is at risk, contact customer care before the due date. Your options are wider before a payment is missed than after.
Expert Note
A lower quoted rate does not always mean a cheaper loan. Compare the calculation method, net amount received, EMI, tenure, APR, fees and total repayment together. If a quote uses a flat rate, convert it to an equivalent reducing rate for the same amount and tenure before comparing it with another offer.
