Personal loan actual interest rate calculator (with processing fee & GST)
The rate on your offer isn't what you really pay. Add the processing fee, GST and other charges to see the actual interest rate (APR) and the total cost.
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Real annual cost (APR)
15.69%
Fees and charges of ₹11,800 push the real annual cost from 14.00% to 15.69%.
- EMI
- ₹17,089
- Money you receive
- ₹4,88,200
- Fees & charges (incl. GST)
- ₹11,800
- Total interest
- ₹1,15,197
- Total cost of borrowing
- ₹1,26,997
- Total you'll pay
- ₹6,15,197
- Interest: ₹1,15,197 (91%)
- Fees & charges: ₹11,800 (9%)
Assumptions behind this estimate
- Fixed interest rate on reducing balance, with equal monthly instalments starting one month after disbursal.
- APR is 12 × the monthly internal rate of return on the net amount after all upfront fees and charges — the approach illustrated in RBI's Key Facts Statement circular (April 2024).
- Fees are treated as paid at disbursal, whether deducted from the loan or paid separately.
- Other charges are taken as entered (we assume they already include any tax). GST applies to the processing fee only when the GST toggle is on.
- Excludes penal charges, bounce charges, foreclosure charges and anything payable later in the loan.
- This is an educational estimate. Your lender's KFS is the authoritative document for your loan.
Real annual cost (APR)
15.69%
Actual interest rate vs the rate on your offer
When a lender quotes 14%, that is the interest rate on the full loan amount. But the processing fee, the GST on it and any other upfront charges come out of the loan (or your pocket) on day one, while your EMIs are worked out on the full amount. Measured against the money you actually receive, the yearly rate is higher. That is the loan's actual, or effective, interest rate. On a Key Facts Statement (KFS) it is called the APR.
Worked example: personal loan with a 2% processing fee + GST
| Amount | |
|---|---|
| Loan sanctioned | ₹5,00,000 |
| Processing fee (2%) | ₹10,000 |
| GST on the fee (18%) | ₹1,800 |
| Money you actually receive | ₹4,88,200 |
| Monthly EMI (on the full loan) | ₹17,089 |
| Total interest | ₹1,15,197 |
| Total cost of borrowing (interest + fees) | ₹1,26,997 |
| Rate on the offer | 14.00% |
| Actual interest rate (APR) | 15.69% |
The fee and GST of ₹11,800 take the yearly cost from 14% to 15.69%. The shorter the loan, the bigger the jump, because the same upfront fee is spread over fewer months: on a 1-year loan the actual rate would be 18.58%, on a 5-year loan 15.08%.
GST applies to the processing fee and other charges, not to the interest: interest on a personal, home or car loan is exempt. The methodology page cites the GST notifications.
Flat rate vs reducing rate
A 10% flat rate on ₹1 lakh for 3 years charges ₹30,000 of interest on the original amount, for an EMI of ₹3,611. On a reducing balance, the same EMI works out to about 17.9% a year. Compare reducing rates, or better, the APR.
Choosing between a card EMI and a loan? The no cost EMI & credit card EMI calculator shows the effective rate of a card EMI on the same basis.
How this works
How we calculate a loan's APR from the interest rate, tenure, processing fee, GST and other charges, using the IRR method shown in RBI's KFS circular. Read the full methodology, formulas and sources.
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Frequently asked questions
What is the actual interest rate on a loan?
It is the yearly rate you really pay once upfront costs are counted, also called the effective interest rate or APR. The rate on your offer is charged on the full loan amount, but the processing fee, the GST on it and other charges reduce the money you actually get while your EMIs stay the same. Measured on what you receive, the rate is higher.
Why is the actual interest rate higher than the advertised rate?
The advertised rate covers interest only. Fees are extra, and because they are paid upfront, they cost more per year on a short loan than on a long one. Two offers with the same advertised rate can have very different actual rates if their processing fees differ.
How do processing fee and GST change the real interest rate?
The processing fee and the GST on it are deducted from your loan or paid upfront, so you receive less but repay EMIs on the full amount. That gap is a cost, just like interest. The worked example on this page shows how much a 2% fee plus GST adds on a 3-year loan; enter your own fee above to see your figure.
What is APR on a loan?
APR (annual percentage rate) is the yearly cost of a loan including interest and upfront fees and charges. Because fees reduce the money you actually receive while your EMIs stay the same, the APR is usually higher than the interest rate on the offer.
What does the APR on my KFS mean?
RBI requires lenders to give a Key Facts Statement (KFS) for retail and MSME term loans, and all such loans sanctioned on or after 1 October 2024 must have one. RBI describes the APR on it as the annual cost of credit, including the interest rate and all other charges tied to the loan. This checker uses the method RBI illustrates in the same circular, so you can check the KFS figure yourself.
How does this checker calculate APR?
It finds the monthly rate at which your EMIs exactly repay the amount you actually receive after fees and charges (an internal rate of return), then multiplies it by 12. This is the method illustrated in RBI's Key Facts Statement circular of April 2024, and our calculator reproduces RBI's worked example (17.07%).
What is the difference between a flat and a reducing interest rate?
A reducing (or diminishing) balance rate charges interest only on what you still owe, so the interest part of your EMI falls every month. A flat rate charges interest on the original loan amount for the whole tenure, so the same number costs much more. This checker works with reducing rates; the example on this page converts a flat rate, and if an offer quotes one, ask the lender for the APR on the KFS.
Why is my APR different from the APR on my KFS?
Small differences can come from charges we don't know about, a first EMI date that isn't exactly one month after disbursal, or rounding. If the gap is large, check the KFS line by line or ask the lender to explain it.
Should I pick the offer with the lowest interest rate?
Not always. An offer with a lower rate but a higher processing fee can cost more overall, especially on shorter loans. Compare the total cost and APR of each offer for the same amount and tenure.
Related tools
- EMI CalculatorWork out your monthly EMI, total interest and full month-by-month amortization schedule for any loan.
- Credit Card & No-Cost EMI CalculatorSee what a card EMI — even a “no cost” one — really costs after GST on interest and fees.
- Loan Foreclosure CalculatorFind out how much it takes to close your loan today, what the foreclosure charge and GST add, and how much interest you avoid.
Related guides
- GuideProcessing fee and GST: how to find a loan's actual interest rateHow a processing fee and the GST on it push a loan's real cost above the advertised rate, and how to work out its actual interest rate (APR).
- GuideCredit card EMI vs personal loan: which costs less?Compare a credit card EMI with a personal loan for the same purchase: interest, GST, processing fees and effective APR, with worked examples in rupees.
- GuideHow GST on credit card EMI is calculated (with worked example)GST on a credit card EMI is charged on the interest in each instalment and on the processing fee. Step-by-step calculation with a month-by-month table.
- GuideIs no cost EMI really free? What you actually payNo cost EMI covers the interest, not the GST on it or the processing fee. What you actually pay, when it's worth it, and the costs that are easy to miss.
Last reviewed · By ClearRupee Editorial Team

