No-cost EMI: what it really costs you

How it works behind the scenes

When you choose a no-cost EMI, a bank, a card issuer or a finance company lends you the price of the product. That lender charges interest, just like on any EMI. To make the offer "no cost", the seller or the brand gives you an upfront discount roughly equal to that interest. The discount lowers the amount you borrow, the interest brings the total back up to about the original price, and the two roughly cancel out.

That is why the RBI, years ago, cautioned against "zero percent interest" schemes that hid the cost of credit: the interest exists; someone has simply paid for it on your behalf, or built it into the price.

Where the extra cost creeps in

• GST on interest: GST is charged on the interest part of each EMI. The discount offsets the interest, but not the GST on it, so you pay a little more than the sticker price.
• Processing fee: many card and finance-company EMIs carry a one-time processing fee, with GST on top.
• A lost discount: a cash or upfront card payment sometimes gets a bigger instant discount or cashback than the EMI option. If so, the EMI costs you that difference.
• Foreclosure and late charges: closing the EMI early or missing an instalment can bring fees and interest.

A worked example

Say a phone costs ₹30,000 and is offered on a 6-month no-cost EMI through a credit card, with illustrative terms. The seller gives a discount of about ₹1,350, so the card lends you about ₹28,650. At the card's EMI interest rate, interest over six months comes to about ₹1,350, so six EMIs of ₹5,000 add up to ₹30,000, the sticker price.

Now add the extras. GST on the ₹1,350 of interest at 18% is about ₹243. A processing fee of, say, ₹199 plus GST adds about ₹235. The real total is about ₹30,478, roughly 1.6% more than paying ₹30,000 upfront. And if paying in full would have earned an extra ₹1,500 instant discount, the EMI actually costs you nearly ₹2,000 more.

What it does to your credit limit and score

On a credit card, the full product price is usually blocked against your limit when you buy and released as you pay each EMI. That raises your credit utilisation for the duration, which can weigh on your score if the amount is large relative to your limit. Through a finance company, the EMI is a separate small loan on your credit report, with its own enquiry when you apply. Paying every instalment on time helps your record; missing one hurts it like any loan.

When it is a good idea

• You were going to buy the item anyway, at this price, and the real extra cost is small.
• Paying over a few months keeps your emergency fund or savings untouched.
• The EMI fits comfortably in your monthly budget, with room to spare.
• You compare the EMI price with the best upfront price, including any instant discount, and the difference is acceptable.

When to avoid it

• It tempts you into buying something more expensive than you planned.
• Several EMIs are already running and together take a large share of your income.
• The processing fee and GST make the total noticeably higher than the upfront price.
• Your card is already near its limit, so the block would push utilisation very high.

How to check any offer in two minutes

Ask for, or find in the checkout terms, four numbers: the discount, the interest rate, the processing fee and the tenure. Add up all the EMIs, the processing fee and the GST on interest and fee. Compare that total with the best price you could get by paying upfront. The difference is what the EMI really costs you.

Card EMI, finance-company EMI or buy now pay later?

The same purchase can often be financed three ways, and they are not equal. A credit card EMI uses your card limit and the card issuer's EMI terms; it is simple, but the amount is blocked against your limit. A finance company EMI at the store or checkout is a separate small loan, with its own approval and credit enquiry, and sometimes a down payment. Buy now pay later (BNPL) services spread a purchase over a few instalments, often short-term, with late fees if you miss one; they are still credit and can be reported to the bureaus.

Whichever route you use, the question is the same: what is the total you will pay, compared with the best upfront price, and does the instalment fit comfortably in your budget? Several small EMIs and BNPL plans running together are easy to lose track of, and they add up to a real monthly commitment.

Quick answers

Is no-cost EMI illegal? No. It is a common and legal offer; the point is that the cost of credit is being paid for by a discount rather than not existing.

Does it affect my CIBIL score? Indirectly, through utilisation on a card or as a small loan on your report. On-time payments help; missed ones hurt.

Can I convert an earlier purchase into no-cost EMI? Usually not; no-cost offers are tied to the purchase at checkout. A later EMI conversion on a card is normally a regular, interest-bearing EMI.

Is a debit card EMI any different? It works on the same principle, as a pre-approved loan from your bank, with its own terms.

The bottom line

No-cost EMI is a financing offer, not free money. Judge it by the total you will pay against the best upfront price, and use it for planned purchases you can comfortably afford. This guide is general information, not personal financial advice.