The ratio the lender uses, and what it ignores
The technique
FOIR — fixed obligations to income ratio
Lenders total your existing EMIs and card obligations, add the proposed EMI, and require the sum to stay under roughly 40 to 50 percent of net monthly income. Rent, groceries and money sent home are not fixed obligations in that definition, so a household spending 70 percent of income on them is scored the same as one spending 30.
The arithmetic is short. At a 40 percent cap on ₹25,000, total EMI room is ₹10,000. At 50 percent it is ₹12,500. Whatever you already pay comes out of that first, and the rest is the EMI a lender is willing to sanction.
What the ratio measures is the lender's recovery odds, not your comfort. It is calibrated to a household where the other half of income comfortably covers living costs. At ₹25,000 the other half is ₹12,500, and in most cities rent alone takes more than half of that. So the cap can be satisfied by a loan that leaves nothing at the end of the month, and the lender's model will call that a good loan.
- A 40 percent cap allows ₹10,000 of EMI; a 50 percent cap allows ₹12,500. Which one applies is not published, and it moves with your credit score and the lender's appetite that quarter
- Neither figure has seen your rent. A ₹12,500 EMI approved under the ratio and an ₹8,000 rent are both real, and together they are ₹20,500 out of ₹25,000
- That gap is why an approved loan can still be an unaffordable one. Approval means the ratio passed, not that the month adds up






