Form 1084 is Fannie Mae’s Cash Flow Analysis worksheet, not an IRS tax form. Mortgage lenders use it to translate a self-employed borrower’s tax returns into a monthly income figure for loan qualification. If you’re applying for a conventional mortgage and you own 25% or more of a business, your lender will run your returns through Form 1084 to decide how much of your income actually counts toward the loan.1Fannie Mae. Fannie Mae Selling Guide – Underwriting Factors and Documentation for a Self-Employed Borrower
The reason it exists: self-employed borrowers usually show lower taxable income than the cash they actually have, because legitimate deductions shrink the number on paper. Form 1084 adds back non-cash expenses like depreciation that lowered your taxable income without touching your bank account, and it strips out one-time items that won’t repeat. The output is a monthly income figure meant to reflect what you can realistically put toward a mortgage payment.
Who Actually Fills Out Form 1084
You don’t. The lender or underwriter completes it using data from your tax returns. The form itself describes its purpose as preparing “a written evaluation of the analysis of income related to self-employment.”2Fannie Mae. Cash Flow Analysis (Form 1084) Your job is to hand over clean documentation and be available to explain anything unusual.
Lenders can also skip the manual worksheet and use Fannie Mae’s free Income Calculator, which applies the same rules and produces a Findings Report on a business-by-business basis.3Fannie Mae. Income Calculator Which tool your lender uses is their call.
What You Need to Provide
The baseline is two years of signed federal tax returns, both personal and (in most cases) business, with all schedules attached. Complete, legible IRS transcripts are also acceptable in place of signed copies.1Fannie Mae. Fannie Mae Selling Guide – Underwriting Factors and Documentation for a Self-Employed Borrower Which returns matter depends on how your business is structured:
- Sole proprietors: personal Form 1040 with Schedule C.
- Partnerships: personal Form 1040, the partnership’s Form 1065, and your Schedule K-1.
- S-corporations: personal Form 1040, the S-corp’s Form 1120-S, and your Schedule K-1.
Lenders normally verify what you submit against IRS records using Form 4506-C, which lets the IRS release your transcripts directly to the lender.4IRS. Income Verification Express Service (IVES) If the returns don’t match what the IRS has on file, that gets flagged.
When One Year of Returns Is Enough
A lender may accept just one year of personal and business returns if the business has existed for at least five years and you’ve held 25% or more ownership for five consecutive years. Each business is evaluated separately, so with multiple businesses, some may qualify for the one-year path while others still need two years.1Fannie Mae. Fannie Mae Selling Guide – Underwriting Factors and Documentation for a Self-Employed Borrower
When Business Returns Can Be Waived
In limited cases, the separate business return requirement can be waived entirely when two years of individual returns are provided. This applies when you’re using personal funds for the down payment and closing costs, you’ve been self-employed in the same business for at least five years, and your individual returns show increasing self-employment income across the two years.1Fannie Mae. Fannie Mae Selling Guide – Underwriting Factors and Documentation for a Self-Employed Borrower
How the Math Changes Your Income
Form 1084 is a series of adjustments to your reported income. Some items get added back, others get pulled out. Knowing which is which helps you predict where your qualifying number will land.
What Gets Added Back
Deductions that reduced your taxable income without costing you cash get added back. For Schedule C filers, that includes depreciation (Line 13), depletion, business use of home, amortization, and non-recurring casualty losses.2Fannie Mae. Cash Flow Analysis (Form 1084) Depreciation is usually the largest. A $15,000 depreciation deduction on your Schedule C comes back to your qualifying income in full because no check ever left your account for it.5IRS. Schedule C (Form 1040) The same logic applies to depreciation, depletion, and amortization on partnership and S-corp returns, though only your ownership share is added back.
What Gets Subtracted
Income the lender judges won’t continue comes out. That includes one-time capital gains from selling equipment and other non-recurring items reported as other income on Schedule C.6Fannie Mae. Fannie Mae Selling Guide – Income or Loss Reported on IRS Form 1040, Schedule C
Meals and entertainment cause more surprises than any other line. You can only deduct 50% of business meals, and entertainment is generally nondeductible since 2018.7IRS. IRS Publication 463 – Travel, Gift, and Car Expenses The non-deductible portion is still money you actually spent, so Form 1084 subtracts it from cash flow. In effect, the full cost of those meals reduces your qualifying income even though only half of it reduced your taxes.2Fannie Mae. Cash Flow Analysis (Form 1084)
The Starting Numbers
For sole proprietors, the starting point is Line 31 of Schedule C, your net profit or loss.5IRS. Schedule C (Form 1040) For partnership and S-corp owners, the lender pulls ordinary income from the K-1, plus items like net rental income and, for partnerships, guaranteed payments. If your K-1 income isn’t backed by a documented history of cash distributions at that level, the lender has to separately verify the business has enough liquidity for you to actually withdraw those earnings.8Fannie Mae. Fannie Mae Selling Guide – Income or Loss Reported on IRS Form 1065 or IRS Form 1120S, Schedule K-1
Averaging, Declining Income, and Losses
With two years of returns, the lender usually averages the adjusted income across both years. That 24-month average smooths out seasonal swings and single-year dips.
If your income declined year over year, expect a closer look. Fannie Mae requires a trend analysis, and a downward trend can change the calculation. Instead of averaging, the lender may use only the most recent lower year, which directly cuts your qualifying income and the loan size you can support. Fannie Mae has a separate form, Form 1088 Comparative Income Analysis, specifically for evaluating income trends.1Fannie Mae. Fannie Mae Selling Guide – Underwriting Factors and Documentation for a Self-Employed Borrower
A net business loss doesn’t just zero out. It’s subtracted from your other income sources, so a large enough loss relative to your W-2 or other earnings can disqualify you entirely.
After the Form Is Done
Once Form 1084 or the Income Calculator’s Findings Report is complete, it’s packaged with the rest of your file. The underwriter checks the entries against your tax transcripts, then feeds the resulting income into Desktop Underwriter, Fannie Mae’s automated underwriting system, which weighs your debt-to-income ratio and other risk factors to decide whether the loan is eligible for sale to Fannie Mae.9Fannie Mae. Desktop Underwriter and Desktop Originator
Stay reachable while this is happening. Underwriters commonly come back with questions about specific line items, unusual expenses, or gaps in business income, and a slow reply can push out your closing date.