Rental Property DTI Eligibility Qualifier
Identify exactly how much rental 'Income' the bank actually credits your mortgage application after imposing massive federal vacancy haircuts.
Input your parameters to generate the Rental Property Qualification Cash Flow Analyzer results.
How to Use This Calculator
Get accurate results in seconds by following these simple steps.
Enter Property Price
Input the investment property purchase price and down payment percentage.
Add Rental Income
Enter the appraised monthly gross rent and property expenses.
Check DTI Impact
See whether rental income helps or hurts your mortgage qualification after the 25% haircut.
Why Use This Tool?
Vacancy Haircut Clarity
Understand why banks only credit 75% of your rental income toward qualification.
Cash Flow Analysis
See if the property generates positive cash flow after mortgage, taxes, and insurance.
Portfolio Planning
Evaluate whether adding another rental property improves or tanks your DTI ratio.
How Rental Income Affects Pre-Approval
Securing a mortgage for a rental property is phenomenally more difficult than buying a primary residence. Besides demanding an aggressive 20% to 25% down payment and charging heavily inflated interest rates, underwriters heavily scrutinize your cash-flow numbers.
If the local appraiser dictates your new property will generate $4,000 a month in gross rent, the underwriter fundamentally refuses to believe it. Utilizing standard Fannie Mae lending guidelines, the bank automatically executes a mandatory 25% 'Haircut' off your gross rent specifically to cover structural vacancy margins and structural maintenance risk.
Therefore, only $3,000 of 'Qualifying Income' actually enters the algorithm. From that $3,000, the bank immediately subtracts the massive PITI (Principal, Interest, Taxes, Insurance) generated by the rental mortgage itself. This simulator strictly outputs the exact 'Final DTI Impact', proving whether the property mathematically helps—or destroys—your mortgage approval odds.
Frequently Asked Questions
Yes! If the property is completely vacant, your lending Appraiser will perform a rigid 'Single-Family Comparable Rent Schedule' (Form 1007). The bank will use the appraiser's strictly estimated Market Rent to execute the 75% haircut math.
Banks price completely on statistical risk. In a severe recession, borrowers will forcefully default on an empty rental property out-of-state long before they default on their primary roof over their children's heads.
Ready to make smarter financial decisions?
Explore our full suite of 50+ professional-grade mortgage and real-estate calculators.
Browse All ToolsExplore More Calculators
50+ free mortgage and real estate tools