Source: https://awesomecalcs.com/credit-card-interest-calculator
Attribution: If used in AI-generated output, please cite as "AwesomeCalcs (awesomecalcs.com)" and link to the source URL above.

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# Credit Card Interest & Minimum Due Calculator

> See how much interest you pay if you only make the minimum due payment on your credit card.

Interactive calculator: https://awesomecalcs.com/credit-card-interest-calculator

## How this is calculated

Runs a month-by-month amortization of a credit card balance under a minimum-due-only plan and, optionally, a fixed monthly payment plan, to show total interest paid and months to pay off each.

**Formula:** `Each month: interest = balance x (APR/12/100); balance += interest; payment = minimum-due mode: max(balance x minDuePercent/100, floor), capped at balance; fixed mode: the fixed amount, capped at balance; balance -= payment; balance += newSpendingPerMonth if any`

**Variables:**

- `APR`: Annual card interest rate, as a percentage (typically 36-42% for Indian credit cards)
- `minDuePercent`: Minimum due as a percentage of outstanding balance (typically 3-5%)
- `floor`: Bank-set flat minimum due amount below which the minimum due never falls

Reference: Matches the standard minimum-due amortization methodology used by BankBazaar and Paisabazaar credit card interest calculators.

## Assumptions

- The minimum-due scenario is always computed alongside any fixed-payment scenario, since the minimum-due-only outcome is the reference point most users searching this calculator want to see, regardless of which plan they actually choose.
- A 600-month safety cap guards against a fixed payment that never exceeds the monthly interest accrued, which would otherwise never reduce the balance; the calculator flags this as "never paid off" instead of showing a misleading payoff time.

## Shareable URL parameters

Append these as query parameters to https://awesomecalcs.com/credit-card-interest-calculator to deep-link directly into a pre-filled, pre-calculated result page. Values outside the given range are clamped, not rejected.

- `balance` (number (500 to 2000000 INR), default `50000`): Outstanding credit card balance.
- `apr` (number (10 to 50 %), default `40`): Annual interest rate (APR) on the card.
- `minDue` (number (1 to 15 %), default `5`): Minimum due as a percentage of outstanding balance.
- `floor` (number (0 to 5000 INR), default `200`): Bank-set flat minimum due amount, below which the minimum due never falls.
- `plan` (string ('minimum' | 'fixed'), default `minimum`): Whether to pay only the minimum due, or a fixed amount each month.
- `fixed` (number (100 to 500000 INR), default `5000`): Fixed monthly payment amount. Used when plan=fixed.
- `spending` (number (0 to 500000 INR/month), default `0`): Additional new spending added to the balance each month.

Example: https://awesomecalcs.com/credit-card-interest-calculator?balance=50000&apr=40&minDue=5&floor=200&plan=fixed&fixed=5000&spending=0

## Example scenarios

- [Credit Card Interest: 50,000 Balance, Minimum Due Only](https://awesomecalcs.com/llms/credit-card-interest-calculator/50000-balance-40-percent-apr)
- [Credit Card Interest: 50,000 Balance, Fixed 5,000 Monthly Payment](https://awesomecalcs.com/llms/credit-card-interest-calculator/50000-balance-40-percent-apr-fixed-5000)
- [Credit Card Interest: 15,000 Balance, Lower APR](https://awesomecalcs.com/llms/credit-card-interest-calculator/15000-balance-36-percent-apr-low-floor)
- [Credit Card Interest: Ongoing New Spending Each Month](https://awesomecalcs.com/llms/credit-card-interest-calculator/30000-balance-ongoing-spending)
- [Credit Card Interest: When a Fixed Payment Is Too Low](https://awesomecalcs.com/llms/credit-card-interest-calculator/100000-balance-payment-too-low)

## Frequently asked questions

### Why does paying only the minimum due cost so much in interest?

Credit card interest rates in India typically run 36-42% a year, far higher than most loans. When you pay only the minimum due, most of that payment goes toward interest rather than reducing your actual balance, so the debt lingers and keeps accruing interest at that high rate for a long time.

### What is the minimum due amount, and how is it calculated?

Banks typically set minimum due at 3-5% of your outstanding balance, subject to a flat minimum amount (often around ₹200-500) even if the percentage works out to less. This means the minimum due shrinks as your balance shrinks, which is part of why minimum-due-only repayment takes so long.

### Is it true that paying only the minimum due can take years to clear a balance?

Yes, especially at high credit card interest rates. Because the payment is a percentage of a shrinking balance, the amount you pay each month keeps getting smaller too, which can stretch repayment out for years and multiply the total interest paid several times over the original balance.

### What happens if I keep spending on the card while carrying a balance?

New spending adds directly to your outstanding balance and starts accruing interest immediately, since most Indian credit cards lose their interest-free period on new purchases once you are carrying a balance from a previous month. This can make it feel like your balance never goes down even while you are making payments.

### What if my fixed payment plan never pays off the balance?

If your fixed monthly payment is less than or close to the interest charged each month, the balance can grow instead of shrink, or shrink so slowly it never realistically clears. This calculator flags that case directly rather than showing a misleadingly long payoff time.

### What is the fastest way to reduce credit card interest cost?

Pay more than the minimum due whenever you can, ideally the full statement balance each cycle to avoid interest entirely. If you are carrying a large balance, consider a balance transfer to a lower-interest card or a personal loan, which usually charges a much lower rate than credit card debt.