The payment amount changes more than the monthly cash flow
Take a ₹1 lakh balance and use a 42% annual APR purely as a worked assumption. That is 3.5% a month before considering issuer-specific daily calculations, fees or taxes.
The key question is not simply “can I pay ₹5,000?” but “how much of ₹5,000 reaches principal after interest?”
Four repayment paths
Using the simplified FinPockett model and no new spending:
| Monthly strategy | Broad effect |
|---|---|
| Minimum payment | payment can fall as balance falls, extending payoff |
| ₹5,000 fixed | principal reduces, but high interest consumes a significant share early |
| ₹10,000 fixed | substantially faster principal reduction |
| ₹20,000 fixed | much shorter payoff period and lower cumulative interest |
The exact month count is best generated by the calculator because issuer APRs and payment rules vary.
Why doubling the payment can save more than half the interest
Interest is charged on the outstanding balance. A larger payment reduces that balance sooner, so the next month’s interest is charged on a smaller base. That means the benefit compounds through the repayment schedule.
Continuing new spending changes the answer
If ₹5,000 of new spending is added each month while paying ₹5,000, the payment may barely cover new charges and interest. The balance can remain flat or grow.
This is why a realistic payoff plan often separates:
- stopping or reducing new card spending,
- choosing a fixed repayment amount,
- tracking the balance month by month.
Compare refinancing carefully
A personal loan or card EMI can produce a lower rate than revolving credit in some cases, but fees, tenure and behaviour after refinancing matter. Moving a balance is not useful if the card is immediately used to build a new balance.
Frequently asked questions
Is 42% APR universal?
No. It is only the disclosed worked-example assumption here. Use the APR from your issuer.
Why can the minimum-payment option take so long?
Because the payment itself may shrink with the balance, leaving less rupee principal reduction each month.
Should I always refinance card debt?
Not automatically. Compare total cost, fees and your ability to avoid rebuilding the card balance.
Does paying more earlier matter?
Yes. Earlier principal reduction reduces the base on which later interest is charged.