If you've ever wondered why a bank offered you less than you expected — or more than felt comfortable — the answer is almost always FOIR: Fixed Obligations to Income Ratio. It's the single most important number in Indian loan underwriting, and understanding it puts you in control of your own eligibility instead of just accepting whatever number a bank quotes.
The formula is simple. FOIR = (Total monthly EMIs, including the new loan) ÷ Monthly take-home income, expressed as a percentage. Banks set a ceiling — commonly 40–55% depending on your income band, loan type and the specific lender — and will not approve a loan that would push your total obligations past that ceiling.
A worked example. Say your monthly take-home is ₹1,20,000, you already pay ₹8,000/month toward an existing car loan, and your bank caps FOIR at 50%.
- Maximum total EMI allowed: 50% × ₹1,20,000 = ₹60,000
- Minus your existing ₹8,000 EMI: ₹52,000 available for a new loan
- At 8.5% over 20 years, ₹52,000/month supports a loan of roughly ₹59.9 lakh
If you'd had no existing EMI, the full ₹60,000 would be available, supporting a loan closer to ₹69 lakh — a meaningful difference from one existing obligation alone.
Why banks use 40-55% and not something else. The ceiling isn't arbitrary — it reflects how much of a borrower's income can realistically go toward debt while still covering rent or living costs, food, insurance, savings, and unexpected expenses without high default risk. Lower income bands are often held to a stricter (lower) FOIR ceiling precisely because a larger share of their income is already committed to essential living costs.
Five ways to actually improve your FOIR-based eligibility:
- Close or reduce small existing EMIs. Paying off a ₹5,000/month personal loan or a credit card EMI before applying frees up that same ₹5,000 of headroom directly against your new loan's ceiling.
- Extend tenure (with caution). A longer tenure lowers the EMI for the same loan amount, which raises how much you can borrow under the same FOIR cap — but remember from our EMI article that longer tenure means meaningfully more total interest. This is a real trade-off, not a free upgrade.
- Add a co-applicant with income. A working spouse or parent as co-applicant adds their income (and their FOIR capacity) to the application, often substantially raising the combined eligible amount.
- Improve your credit score. A CIBIL score of 750+ doesn't just get you a better rate — some lenders extend a more generous FOIR ceiling to strong-credit applicants specifically.
- Choose a lender or salary segment with a higher band. Premium salary segments at private banks sometimes get FOIR ceilings as high as 55-60%, versus the more conservative 40-45% for standard segments elsewhere.
One important distinction: your maximum eligible loan under FOIR is not the same as what you should comfortably borrow. Banks will often approve you right up to their ceiling, but a comfort-level ceiling of 30-35% — leaving real monthly breathing room for savings, emergencies and rate resets — is usually the wiser number to actually borrow against.
Want to see both numbers side by side — what the bank will approve versus what's genuinely comfortable for your budget? Try the Loan Eligibility Calculator for the bank ceiling, or the Loan Affordability Calculator to see the safer number next to it.