As a general guideline, it is recommended that home-loan EMIs (equated monthly instalments) should not be more than one-third of the monthly income. For instance, if someone earns Rs. 1 lakh monthly, the ideal home-loan EMI would be about Rs 33,000, provided that there are no other EMIs running. The lender will assess the prevailing interest rates and loan tenure to determine the maximum loan amount that the borrower qualifies for based on these factors