Loan Rate Change Calculator: Adjust EMI or Tenure?
When your bank reprices your loan, it quietly picks the option that earns it the most. This shows what each choice actually costs you.
Verdict
Adjust the EMI: saves $10.8K
- Current EMI
- $1,394
- Keep EMI ($1,394)
- 16 yr 5 mo tenure
- Adjust EMI ($1,461)
- 15 yr 1 mo tenure
- Interest gap
- $10.8K
Letting the tenure stretch is the expensive, silent default. Alternatively, a one-time prepayment of $7,319 keeps both your EMI and tenure unchanged.
Outstanding balance under each choice
Year-by-year outstanding balance
| Year | Keep EMI | Adjust EMI |
|---|---|---|
| 1 | $154,701 | $153,872 |
| 2 | $149,005 | $147,285 |
| 3 | $142,881 | $140,204 |
| 4 | $136,299 | $132,592 |
| 5 | $129,224 | $124,410 |
| 6 | $121,618 | $115,614 |
| 7 | $113,442 | $106,159 |
| 8 | $104,653 | $95,995 |
| 9 | $95,205 | $85,069 |
| 10 | $85,049 | $73,325 |
| 11 | $74,131 | $60,700 |
| 12 | $62,396 | $47,128 |
| 13 | $49,781 | $32,540 |
| 14 | $36,220 | $16,858 |
| 15 | $21,642 | $0 |
| 16 | $5,972 | $0 |
| 17 | $0 | $0 |
The decision your bank makes for you
Floating-rate loans reprice every time the RBI moves. The decision nobody explains: when your rate changes, you get to choose where the change lands, on your EMI, your tenure, or a one-time prepayment. Banks pick the tenure by default because it generates the most interest income and zero customer complaints.
The math is one-sided. Absorbing a hike in tenure means every month of extension is a month of near-pure interest at the new higher rate. Absorbing it in the EMI costs you a little cash flow now and nothing later. The same asymmetry works in your favour when rates fall: keep the EMI, shorten the tenure, and pocket the entire cut as saved interest. This tool quantifies both sides so you can walk into the bank with a number instead of a feeling.
FAQ
What happens by default when my loan rate rises?
Almost every bank keeps your EMI the same and silently extends your tenure. It feels painless because your monthly outgo does not change, but it is usually the most expensive option: on a mid-size loan, a 0.75% hike absorbed through tenure can add several extra years and lakhs in interest.
Rate went up: should I increase my EMI or pay a lumpsum?
Increasing the EMI to hold your original tenure is almost always cheaper than letting the tenure stretch. If your cash flow cannot absorb a higher EMI, this calculator shows the one-time lumpsum that neutralizes the hike, keeping both EMI and tenure where they were.
Rate went down: should I reduce my EMI?
Only if you need the monthly relief. Keeping the EMI unchanged after a rate cut turns the entire cut into faster principal repayment, which shortens the tenure and saves the most interest. Banks default to reducing tenure in some cases and EMI in others, so explicitly tell them what you want.
Can my EMI become too small to ever repay the loan?
Yes. If the rate rises enough that your current EMI is less than the monthly interest, the balance grows instead of shrinking. This is negative amortization, and the calculator flags it. In that case increasing the EMI is not optional.
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