Credit Card EMI Conversion Calculator
Credit Card EMI Conversion Calculator
What converting a card purchase into EMIs really costs — interest, processing fee and GST — including “no-cost” EMI, compared with paying the bill in full.
Card EMI and its cost
$60,000 converted into 6 EMIs at 15% a year, a 1% processing fee and 18% GST
Card EMI, no-cost EMI and the true cost
No-cost: EMI = P ÷ n, L = P × [1 − (1 + r)−n] ÷ (r n), discount = P − L = I
Extra cost = n × EMI + fee + GST × (I + fee) − P
- P
- the purchase price, paid in full
- L
- the amount converted: P on a standard EMI, P less the discount on a no-cost EMI
- r
- the annual EMI rate ÷ 12 ÷ 100; n is the number of monthly instalments
- effective annual cost
- the monthly rate × 12 at which the EMIs plus GST are worth the price less the fee and its GST today — comparable with a quoted rate
Worked example
$60,000 converted into 6 EMIs at 15% a year, a 1% processing fee and 18% GST
r = 15 ÷ 1200 = 0.0125; (1.0125)−6 = 0.9282
EMI = 60,000 × 0.0125 ÷ (1 − 0.9282) = $10,442
Interest = 6 × 10,442.03 − 60,000 = $2,652; fee $600; GST = 18% × 3,252 = $585
Extra over paying in full: $3,838, or 6.40% of the price; effective annual cost 21.90%
As a no-cost EMI instead: discount $2,540, EMI $10,000, extra cost $1,135 (fee and GST)
60,000 at 15% with a 1% fee and 18% GST: standard against no-cost EMI
| Tenure | Standard EMI | Standard: extra cost | No-cost EMI | No-cost: extra cost |
|---|---|---|---|---|
| 3 months | $20,502 | $2,485 | $20,000 | $955 |
| 6 months | $10,442 | $3,838 | $10,000 | $1,135 |
| 12 months | $5,415 | $6,591 | $5,000 | $1,482 |
How card EMIs and “no-cost” EMIs are really charged
Converting a card purchase into EMIs turns it into a small loan. Issuers charge interest on the reducing balance, like any EMI loan, usually at a rate far below the card’s revolving rate, plus a processing fee. In India, GST is charged on both: interest on loans is exempt from GST, but the exemption expressly leaves out interest on credit card services, and issuers’ terms apply 18% to EMI interest and fees. On the example, $60,000 over six months at 15% costs $2,652 of interest, a $600 fee and $585 of GST: $3,838 more than paying in full, an effective 21.90% a year once the fee and tax are counted.
A “no-cost” EMI is not interest-free. In September 2013 the Reserve Bank of India told banks that the very concept of zero per cent interest is non-existent, that in 0% EMI schemes on card outstandings the interest was often camouflaged as a processing fee, and that where a discount is offered the loan should be sanctioned net of it. What is sold as no-cost EMI today follows that shape: the merchant or brand gives an upfront discount equal to the interest, the bank lends the discounted amount and charges its normal rate, and the EMIs add up to the original price. The interest is real, so GST on it is too, and a processing fee may apply. In the example the discount is $2,540 and the cost is $1,135: small, but not zero.
Before converting, check three things. Would paying in full get a bigger discount than the no-cost offer? Is there a foreclosure charge if you repay early? And does the EMI block part of your credit limit until it is repaid, which raises your utilisation? If you would otherwise carry the balance at the card’s revolving rate, an EMI is usually far cheaper — the credit card payoff calculator shows what revolving costs. Compare the effective annual cost with a personal loan EMI calculator quote too. Paying in full also means the money leaves your savings sooner; that lost interest is not counted here. This is arithmetic on the figures you enter, not financial advice.
Frequently asked questions
How is credit card EMI calculated?
On the reducing balance, like a loan: EMI = L × r ÷ [1 − (1 + r)^−n], with r the annual rate ÷ 1200. $60,000 for 6 months at 15% is $10,442 a month.
Is GST charged on credit card EMI?
In India, yes: 18% on the interest in each EMI and on the processing fee. Card interest is excluded from the GST exemption for loan interest (Notification 12/2017-Central Tax (Rate), entry 27).
Is no-cost EMI really free?
No. The interest is paid for by an upfront discount, but GST on that interest and any processing fee remain. The RBI said in 2013 that zero per cent interest does not really exist.
Should I convert to EMI or pay in full?
Paying in full costs nothing extra if you can do it without dipping into an emergency fund. An EMI is far cheaper than carrying a revolving card balance.
Related calculators
References
- Reserve Bank of India. Circular RBI/2013-14/292, DBS.CO.PPD No. 3578/11.01.005/2013-14 (September 2013), on 0% interest schemes on credit card outstandings: “the very concept of zero per cent interest is non-existent”; in such schemes “the interest element is often camouflaged and passed on to customer in the form of processing fee”; where a discount is offered, the loan should be sanctioned after taking the discount into account rather than by reducing the rate of interest. Reported by Business Standard, 25 September 2013.
- Government of India, Ministry of Finance. Notification No. 12/2017-Central Tax (Rate), 28 June 2017, entry 27(a): services by way of extending loans or advances are exempt in so far as the consideration is interest, “other than interest involved in credit card services” — so card interest bears GST.
- SBI Card. Flexipay (credit card EMI) terms and conditions, consulted 22 September 2026: interest on the reducing principal outstanding; processing fee; applicable taxes of Central Tax 9% and State Tax 9%, or Integrated Tax 18%, on interest and fees; foreclosure fee of 3% of principal outstanding plus taxes. Cited for the convention only; each issuer sets its own rates and fees.
- Reserve Bank of India. Master Direction – Credit Card and Debit Card – Issuance and Conduct Directions, 2022 (as amended): card-issuers must quote annualised percentage rates and explain how interest and charges are levied in their Most Important Terms and Conditions.
- Brealey RA, Myers SC, Allen F. Principles of Corporate Finance. McGraw-Hill. The level-payment (annuity) loan formula and the internal rate of return of a series of cash flows.