Is no-cost EMI really free? How it works, what RBI says, and the hidden costs

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Festive sales are on. Many products show “No-cost EMI”.

It sounds like zero interest. It is not.

The bank still charges interest. The seller (or brand) gives you a discount of about the same size up front. So your EMIs add up to the price.

But some costs are not covered by that discount:

• GST on the interest.
• A processing fee, and GST on it.
• Any cash discount you lose by choosing EMI.

This guide shows how it works, with a bank example. Then check your own deal with the free no-cost EMI calculator.

What RBI says

RBI has said this clearly, twice.

RBI circular, 17 September 2013

RBI/2013-14/292 (17 Sep 2013) says:

• “The very concept of zero percent interest is non-existent.”
• Interest was being hidden inside a processing fee.
• A discount on the price should be passed on by cutting the loan amount, not by showing a lower rate.

RBI Master Direction on credit and debit cards, 2022

Para 6(b)(iii) of the Master Direction (2022) says the card issuer must:

• Show the principal, the interest and the upfront discount before EMI conversion.
• Show the same in the card statement.
• Not hide an EMI with interest as “zero-interest” or “no-cost” EMI.

That is why some banks now call it “interest subvention” or “instant discount” instead of “no-cost”. SBI Card’s own explainer says it does not use the term “No Cost” because of RBI guidelines.

How no-cost EMI really works

1. You pick a product. Say the price is ₹35,000.
2. The bank works out the interest for your tenure.
3. The seller gives you a discount equal to that interest, up front.
4. The bank books a smaller loan: price minus discount.
5. You pay equal EMIs. With interest, they add up to the price.

The interest is not zero. It is paid back to you as a discount.

Interest is on the reducing balance

Each month, interest = balance still owed × yearly rate ÷ 12.

Your EMI pays that interest first. The rest cuts the balance.

Interest is not added to the balance. So there is no compounding.

SBI Card’s Merchant EMI terms (PDF) say interest is on a monthly reducing balance.

A normal loan EMI is on the EMI calculator. How the split moves over the years is in How EMI works.

Worked example: the SBI Card example

This example is from SBI Card’s explainer:

Our calculator gives the same answer, in paise: discount ₹1,385.84, loan ₹33,614.16, EMI ₹5,833.33.

Month by month

Working for month 1: 33,614.16 × 14% ÷ 12 = ₹392.17 interest.

Principal = 5,833.33 − 392.17 = ₹5,441.16. New balance = 33,614.16 − 5,441.16 = ₹28,173.00.

The last EMI is 3 paise more, to clear the paise left from rounding.

So the interest (₹1,385.85) is covered by the discount (₹1,385.84). The 1 paisa gap is rounding.

But GST on the interest, ₹249.45, is extra. You pay it on your card bill.

Real bills differ a little. SBI’s terms say the first EMI’s interest runs from the booking date to the payment due date. So month 1 may be more or less than one even month. Our table uses even months.

Hidden costs

1. GST on interest

The bank charges GST on the interest. SBI Card’s terms show GST at 18% of interest in its own example.

The seller’s discount covers the interest. It does not cover the GST.

2. Processing fee, plus GST

Many banks charge a one-time processing fee.

As per SBI Card’s Merchant EMI terms, for EMI transactions on or after 10 September 2026:

The same terms say the fee is not reversed if you foreclose. It is reversed only if the EMI is cancelled.

Other banks have their own fees. Check the payment page or charge slip. The ₹199 fee on the calculator is only an example. Type the fee you see.

3. Cash discount you lose

Some offers give an instant discount only if you pay in full.

If you pick EMI, you lose it. That is a real cost.

4. Cancel or return

SBI Card’s terms say a merchant cashback or discount already posted is debited in full if the EMI is cancelled.

ICICI Bank’s no-cost EMI explainer also says the discount may not apply on cancellation or return.

Worked example 2: all hidden costs together

This uses SBI Card’s 6-month terms from the table above: 17% a year and a ₹45 fee (the price is above ₹20,000).

The ₹1,500 “lost cash discount” is an example figure. Use your own offer.

How the simple yearly rate is worked out

Simple yearly rate = extra ÷ cash price × 100 × 12 ÷ months.

Working (without lost discount): 311.05 ÷ 30,000 × 100 = 1.037%. × 12 ÷ 6 = 2.07% a year.

Working (with lost discount): 1,811.05 ÷ 28,500 × 100 = 6.355%. × 12 ÷ 6 = 12.71% a year.

This is a flat rate on the full cash price. There is no compounding. It is a simple way to see the cost, and it is not the same as the bank’s interest rate.

The lesson: the lost cash discount is often the biggest hidden cost.

When no-cost EMI can still make sense

• There is no cash discount you lose.
• The processing fee is nil or small.
• You can pay every EMI on time.
• You will not cancel or return the product.

Then the extra cost is mostly the GST on interest.

If you miss an EMI, card late fees and interest can cost far more. Pay on time.

Check your own deal

1. Open the no-cost EMI calculator.
2. Type the price.
3. Type any cash discount you lose by taking EMI (0 if none).
4. Type the tenure and the bank’s interest rate (from the payment page or charge slip).
5. Pick the upfront discount type: equal to interest (no-cost), a set amount, or none.
6. Type the processing fee (before GST).
7. Read the extra cost over the cash price, and the month-by-month table.

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