Outstanding principal: why total EMIs paid cannot simply be subtracted
Paying ₹1 lakh in instalments does not necessarily reduce principal by ₹1 lakh. To estimate the balance correctly, separate interest and other components from the part applied to the borrowed amount.

Use the schedule or a balance formula
For a standard equal-month model, the balance after k payments can be calculated from the original principal, periodic rate, EMI and k. But prepayments, rate changes and irregular dates require updated inputs. For an actual transfer or closure, use a recent lender statement and dated settlement quote. A rough estimate should not be used as a final payment instruction.
A worked situation
If six illustrative instalments total ₹60,000 and the schedule allocates ₹18,000 to interest, only ₹42,000 reduces principal before other adjustments. Subtracting ₹60,000 from the original borrowing would understate the balance by ₹18,000 in that simplified example.
Your next-step checklist
- Separate principal and interest columns
- Account for resets and prepayments
- Use a current lender quote for settlement
Can I use the original schedule after a rate reset?
It may no longer reflect the account accurately. Obtain the revised schedule and statement, then reconcile changes before estimating principal or comparing transfer proposals.
Official references and further reading
These links help you check current information. A provider-specific page describes that provider’s process; it is not a universal eligibility rule or a claim of partnership.
General educational information, not a personalised credit recommendation. Examples use assumed inputs. Rates, charges, eligibility and documents vary; confirm your own lender’s current written terms.
