Fannie Mae Rental Income Guidelines 2026: Complete Qualifying Guide

Sarah Mitchell

Senior Mortgage Advisor & VA Loan Specialist

August 4, 202615 min readExpert

VA LoansFHA LoansFirst-Time Buyer Programs

The 75% Rule: Core Principle

The Fannie Mae 75% rule is the foundation of rental income qualification. When you report gross rental income, lenders apply a 25% vacancy and expense factor, meaning only 75% of your gross rent is used for qualifying purposes. This buffer accounts for vacancies, repairs, property management costs, and other unpredictable expenses.

For example, if your investment property generates $2,500/month in gross rent, lenders use $1,875/month ($2,500 x 0.75) as qualifying rental income. This applies whether you are qualifying with a conventional loan, a DSCR loan, or using rental income from a multi-unit primary residence. Get pre-approved with rental income today.

75% Rule Calculation Table

Schedule E: How Lenders Calculate Rental Income

When you have a history of renting a property (typically 1+ years), Fannie Mae requires lenders to use IRS Schedule E from your personal tax returns. The calculation follows a specific formula. Check if you qualify with rental income — lenders will review your Schedule E during pre-approval.

Real Example: Schedule E Calculation

ADU Rental Income: New Rules Since 2023

Fannie Mae now allows rental income from Accessory Dwelling Units (ADUs) on 1-unit principal residence properties. This is a game-changer for homeowners with backyard cottages, basement apartments, or garage conversions. Use a cash-out refinance to fund your ADU construction and then qualify with the rental income it generates.

ADU Income Requirements

• Property type: 1-unit principal residence only
• Transaction type: Purchase or limited cash-out refinance only
• Income cap: ADU rental income limited to 30% of total qualifying income
• Documentation: Appraiser must identify the ADU and provide market rent estimate (Form 1007 or Form 1025)
• Legal status: ADU must be legally permitted and comply with local zoning
• Property management experience: Required for unrestricted use; without it, income cannot exceed PITIA

Automated Rental Income Assessment (March 2026)

Fannie Mae launched an automated rental income assessment system on March 1, 2026. This system pulls data directly from tax returns using standardized algorithms, replacing the manual calculations that loan officers previously performed. Find a lender using the new automated system — get faster, more consistent rental income calculations.

What the Automated System Changes

Rental Income by Property Type: Qualifying Rules

Departing Residence: Converting Your Home to Rental

If you are buying a new primary residence and plan to rent out your current home, Fannie Mae allows you to use the projected rental income to help qualify. However, there are strict requirements. Get pre-approved for your new home while keeping your current property as a rental.

• 30% equity requirement: You must have at least 30% equity in the departing residence, verified by appraisal or automated valuation. Check your equity with a cash-out refinance
• Lease agreement: A fully executed lease agreement is required
• Rent schedule: Appraiser must complete Form 1007 (Single-Family Comparable Rent Schedule) or Form 1025 (Small Residential Income Property Appraisal Report)
• Without 30% equity: The full PITIA of the departing residence counts as debt, with no rental income offset. Compare lenders who offer solutions for low-equity situations

Fannie Mae vs Freddie Mac vs FHA: Rental Income Comparison

Step-by-Step: Documenting Rental Income for Your Mortgage

1. Gather tax returns: Collect 2 years of personal tax returns including all Schedule E forms for each rental property
2. Prepare lease agreements: Have current, fully executed leases for all rental properties. Ensure leases show market-rate rent
3. Document property management: If you self-manage, prepare a statement of your experience. If using a management company, obtain their agreement
4. Calculate qualifying income: Use the Schedule E formula: gross rents minus expenses plus add-backs, divided by 12
5. Verify departing residence equity: If converting your current home to rental, order an appraisal or AVM to confirm 30% equity
6. Submit to lender: Provide all documentation to your loan officer. The automated system will calculate qualifying income from your tax data. Start your pre-approval application now
7. Review the calculation: Compare the automated result with your own calculation. If the automated figure is lower, ask your loan officer to review. Compare multiple lenders to get the best rental income calculation

Common Mistakes That Kill Rental Income Qualification

• Forgetting the vacancy factor: Many borrowers assume 100% of rent counts. Only 75% is used.
• Not adding back depreciation: Depreciation is a non-cash expense. It must be added back to Schedule E net income.
• Using wrong PITIA: PITIA (Principal, Interest, Taxes, Insurance, Association dues) must be calculated correctly for each property.
• Insufficient equity in departing residence: Without 30% equity, no rental income offset is allowed for your current home being converted to rental.
• No property management experience: Without it, rental income may be restricted to offsetting only PITIA, not adding to qualifying income.
• Aggressive expense reporting: If you have heavily deducted expenses on Schedule E to minimize taxes, your qualifying rental income will be lower. DSCR loans may be a better option if your Schedule E shows low net income

Frequently Asked Questions

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