Calculator Inputs
Example Data Table
Use these sample inputs to test the calculator layout and export features.
| Input | Example Value |
|---|---|
| Borrower monthly income | 180,000 |
| Co-applicant monthly income | 50,000 |
| Other monthly income | 10,000 |
| Existing EMI | 40,000 |
| Other obligations | 15,000 |
| Stress buffer | 5,000 |
| Annual interest rate | 14.5% |
| Tenure | 84 months |
| Current outstanding | 4,200,000 |
| Property value | 9,000,000 |
| Maximum LTV | 75% |
| Maximum FOIR | 50% |
| Age / max age | 38 / 60 years |
| Credit score / minimum | 760 / 700 |
| Seasoning paid / required | 18 / 12 months |
| Requested top up | 1,800,000 |
Formula Used
1) Total Monthly Income
Borrower Income + Co-applicant Income + Other Income
2) Considered Income
Total Monthly Income × Income Stability %
3) Maximum Allowed Obligations
Considered Income × FOIR %
4) Surplus EMI Capacity
Maximum Allowed Obligations − Existing EMI − Other Obligations − Stress Buffer
5) Affordable Top Up by EMI
Present value of the surplus EMI over the selected tenure and interest rate.
6) Risk Adjusted Amount
Affordable Top Up × Credit Multiplier × Employment Multiplier
7) LTV Headroom
(Property Value × LTV %) − Current Loan Outstanding
8) Gross Eligible Top Up
Minimum of Risk Adjusted Amount and LTV Headroom
9) Net Disbursal
Gross Eligible Top Up − Processing Charges
10) Policy Gates
The calculator also checks age at maturity, minimum credit score, and seasoning months before showing a positive eligibility amount.
How to Use This Calculator
- Enter your monthly income details, including co-applicant and other verified income.
- Add your current EMI, other obligations, and any stress buffer you want to reserve.
- Enter the expected interest rate and desired repayment tenure in months.
- Provide current outstanding loan, property value, and your lender’s LTV and FOIR policy limits.
- Fill in age, credit score, seasoning months, and processing charges.
- Enter the top up amount you want to request.
- Click Calculate Eligibility to show the result above the form.
- Review the output table, graph, and export the result as CSV or PDF.
Frequently Asked Questions
1) What is a top up loan eligibility check?
It estimates how much additional borrowing may be possible on an existing secured loan. The calculation mainly uses income, obligations, rate, tenure, property value, and lender policy limits.
2) Why does property value matter?
Lenders usually cap total borrowing as a percentage of current property value. Even if your income supports a bigger EMI, low LTV headroom can reduce the available top up amount.
3) Why can the eligible amount be lower than requested?
The requested amount may fail affordability, FOIR, credit, seasoning, age-at-maturity, or LTV checks. The calculator returns the lower figure that fits all selected assumptions and policy limits.
4) Does credit score affect top up eligibility?
Yes. Many lenders use credit score as a primary risk filter. In this calculator, a low score can reduce the estimated amount or block eligibility completely when it falls below the minimum threshold.
5) Does a longer tenure increase eligibility?
Usually yes, because the same EMI can support a larger principal over more months. However, age-at-maturity rules and lender policy caps can stop tenure from increasing your approved amount further.
6) Why include current EMI and other obligations?
They reduce surplus repayment capacity. Lenders compare total monthly debt with income, so existing commitments directly affect how much additional EMI room remains for a top up loan.
7) Are processing charges part of the loan amount?
This version treats processing charges as a deduction from net disbursal. That means gross eligibility may look higher than the amount you actually receive after fees are subtracted.
8) Is this result the same as final lender approval?
No. It is an indicative estimate only. Actual approval can change after income verification, valuation, legal review, bureau checks, internal scorecards, and lender-specific underwriting policies.