How the comparison is built

• Outstanding balance, annual rate and remaining tenure drive the mathematical model. Your stated EMI is checked for consistency and is not silently rewritten.
• EMI uses the standard monthly reducing-balance formula, rounded to the nearest rupee.
• Scenarios are compared over the remaining tenure of the current loan. Residual principal at that horizon is counted as a cost.
• Net saving = baseline cost − scenario cost. Cash flows are not discounted. Tax (24(b)/80C) and investment opportunity cost are excluded in this version.
• The model holds the rate used in each scenario constant. It does not forecast RBI or lender rate changes.

Every option is costed over the same period: the time remaining on your current loan. Cost is undiscounted cash — the payments you make, plus every fee you entered, plus any principal still outstanding at the end of that period.

Net benefit is the cost of keeping your loan minus the cost of the option. Counting leftover principal matters: without it, a longer new loan would look cheaper simply because its instalments are stretched further into the future.

Where two options produce the same net benefit, the one needing less cash upfront ranks higher, then the one with the lower EMI.

• Current rate held constant. We do not predict RBI or lender rate changes.
• Monthly reducing-balance amortisation — the standard Indian home-loan method.
• Remaining current-loan horizon used for comparison. Anything still owed at that date counts as a cost.
• Costs are based on numbers entered by you. We never invent a lender's fee schedule.
• No future rate prediction.
• No tax benefit included in this version.

• Outstanding principal, annual rate and remaining tenure drive the schedule. Your stated EMI is checked for consistency and is never silently rewritten.
• Net saving = cost of keeping the loan − cost of the scenario. Cost is undiscounted cash: payments + fees + residual principal at the horizon.
• Tax (Section 24(b) / 80C) and the opportunity cost of investing the surplus instead of prepaying are excluded in this version.
• No named lender is recommended. Refinance and negotiation rates are the figures you enter.
• If implied EMI from balance, rate and tenure differs from the EMI you entered by more than 2%, you will see a warning. The inputs are not changed.

Outstanding balance, interest rate, remaining tenure and EMI are four numbers that may not agree mathematically — lenders round differently, and rates change mid-term. If the EMI you enter differs from the implied EMI by more than 2%, we say so.

We never silently rewrite what you typed. The schedule is built from your balance, rate and remaining tenure, and you are told the implied figure so you can decide which number to trust.

• Predict interest rate movements, RBI decisions or lender repricing.
• Include tax relief under Section 24(b) or 80C.
• Model what you might earn by investing your surplus instead of prepaying.
• Look up any lender's rates or fee schedule.
• Recommend a named bank, or rank lenders in any order.

Each of these needs assumptions we would have to invent on your behalf. An invented number would make the result look precise and still be wrong.