Can Rental Income Be Used to Qualify for a Mortgage?

If you already own rental properties, lenders look at Schedule E of your federal tax return to determine net rental income. They add back depreciation (a non-cash deduction) and mortgage interest, then average the last 24 months. If the net figure is positive, it adds to your qualifying income. If it's negative (rental loss), it typically counts against your income. Borrowers with significant depreciation deductions often see their Schedule E income look much stronger than their cash flow would suggest, or much weaker if other expenses are high.

If you're buying an investment property and plan to rent it out, you can use projected rental income to help qualify, but lenders use 75% of the market rent established by an appraiser (the 1007 Rent Schedule). The 25% haircut accounts for vacancy and expenses. Some lenders require 12 months of documented rental history on any investment property before counting income; others allow the projected rent at purchase. The rules vary by lender and loan program.

DSCR (Debt Service Coverage Ratio) loans flip the qualification model entirely. Instead of using your personal income to determine repayment ability, the lender looks at whether the property's rental income covers the mortgage payment. A DSCR of 1.0 means rent exactly equals the mortgage payment. Most DSCR lenders want a ratio of 1.1-1.25 or higher. There's no W-2, no tax return, and no personal DTI calculation. These loans are built for investors who have strong cash-flowing properties but complex personal income.

If you buy a 2-4 unit property and live in one unit, you can use the rental income from the other units to help qualify, even as an owner-occupant. FHA and conventional both allow this. FHA typically allows 75% of projected market rents on the non-owner units. This is a powerful strategy for first-time buyers: buy a duplex, live in one unit, use the rent from the other to offset your mortgage payment.