You can get a mortgage with one year of tax returns if your business has been operating for at least five years, you’ve held an ownership stake of 25 percent or more for those five years, and the lender’s automated underwriting system signs off on the reduced documentation. This shortcut lives inside the standard Fannie Mae and Freddie Mac rules that govern most conventional loans, so the interest rates and down payment options match any other conforming mortgage. What changes is how much paperwork you hand over.
The Three Conditions You Have to Meet
Fannie Mae’s Selling Guide lists three requirements, and all three have to be satisfied together. The business generating your self-employment income must have existed for at least five years. You must have owned 25 percent or more of it for five consecutive years. And the lender must complete Fannie Mae’s Cash Flow Analysis (Form 1084), or an equivalent worksheet, and keep it in the loan file.1Fannie Mae. Underwriting Factors and Documentation for a Self-Employed Borrower
How you prove the five years depends on the entity. For partnerships, S corporations, and traditional corporations, the business tax return has to line up with what you put on your loan application, and if the company existed before you hit the 25 percent threshold, the lender has to verify you’ve held that stake for five straight years. Sole proprietors show the same history through the individual return and any supporting documentation confirming how long the business has been running.1Fannie Mae. Underwriting Factors and Documentation for a Self-Employed Borrower
The final gate is the automated underwriting system. Lenders run your file through Fannie Mae’s Desktop Underwriter or Freddie Mac’s Loan Product Advisor, and when the system judges the risk acceptable, the findings report says one year of returns is enough. The lender has to follow the finding. It cannot decide on its own to accept less documentation than the system requires.
If you draw self-employment income from more than one business, each business is measured against the five-year test separately. You might submit one year of returns for a seven-year-old company and still owe two years for a three-year-old side venture on the same application.
When You Still Need Two Years
Two years of personal and business tax returns remains the default. Fannie Mae uses that longer history as evidence your income will likely continue at a similar level.1Fannie Mae. Underwriting Factors and Documentation for a Self-Employed Borrower You will almost certainly need the full two years in these situations:
- Your business is less than five years old. There is no one-year shortcut for newer businesses. A borrower with under two years of self-employment history may still qualify if the most recent return shows a full 12 months of income from the current business and prior earnings in a related field can be documented at the same or a higher level.
- Your ownership has dipped below 25 percent at any point in the last five years, even if the business itself is much older.
- The automated underwriting system detects a change in your business structure or industry, which usually pushes the file back to a two-year requirement.
There is a quiet trade-off worth understanding. When two years are provided and the income trend is declining, the system averages the income over 12 months and flags the file, and the lender then has to document that income has stabilized before using it.2Fannie Mae. Income Calculator Frequently Asked Questions With a single year on the table, there is no second year to create a downward trend, but there is also no earlier year to average with a weak one.
The Tax Documents You Provide
Every self-employed borrower submits personal federal income tax returns (Form 1040) with all applicable schedules. What sits alongside them depends on the entity.
Sole Proprietors
Business income flows through Schedule C, which reports gross receipts, cost of goods sold, and operating expenses.3Internal Revenue Service. Schedule C (Form 1040) – Profit or Loss From Business (Sole Proprietorship) The net profit or loss flows into Schedule 1 and Schedule SE, and lenders expect to see all three. No separate business return is required, because the business does not file one.
Partnerships and S Corporations
If you own 25 percent or more of a partnership or S corporation, the lender needs the business return (Form 1065 for partnerships, Form 1120-S for S corporations) in addition to your personal returns.4Fannie Mae. Tax Return and Transcript Documentation Requirements Your personal return will carry a Schedule K-1 showing your share of the business’s income, deductions, and credits.5Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065) The underwriter cross-references the K-1 against the full business return to confirm the numbers agree.
Note that the waiver allowing lenders to skip the business return in some cases applies only when you provide two years of personal returns, not on the one-year path. On the one-year path, business returns for partnerships and corporations are always required.1Fannie Mae. Underwriting Factors and Documentation for a Self-Employed Borrower
How Your Qualifying Income Is Calculated
The bottom-line number on your Schedule C or K-1 is not automatically the income figure the lender uses. Mortgage underwriting adds back certain non-cash deductions that reduced your taxable income without costing you actual money. For Schedule C filers, the add-backs include depreciation, depletion, business use of your home, amortization, and casualty losses.6Fannie Mae. Income or Loss Reported on IRS Form 1040, Schedule C
The lender also removes one-time windfalls. If your Schedule C shows income that did not come from normal operations and won’t recur, it comes out of your qualifying cash flow. The same logic works in reverse: an unusual expense that inflated last year’s deductions can be excluded if the lender documents it as nonrecurring.6Fannie Mae. Income or Loss Reported on IRS Form 1040, Schedule C
This is where the aggressive tax planning that saves you money in April can shrink the mortgage you qualify for. A business netting $150,000 before depreciation but reporting $90,000 after depreciation gets the depreciation added back, moving qualifying income closer to the pre-deduction figure. Deductions for actual cash expenses, like contractor payments or rent, cannot be added back. If you know a mortgage is coming, it is worth reviewing your tax strategy against that timeline.
All of these calculations get documented on Form 1084 or an equivalent, and a copy stays in the permanent loan file.
IRS Transcript Verification
Lenders do not take your word for what you filed. Form 4506-C authorizes an Income Verification Express Service participant to pull your official transcripts straight from the IRS.7Internal Revenue Service. Income Verification Express Service The underwriter compares those transcripts against the returns you handed over, and any mismatch stalls the file. Separate 4506-C requests are filed for personal and business returns, and the IRS rejects any request that isn’t signed and received within 120 days of the signature date.8Internal Revenue Service. IRS Form 4506-C – IVES Request for Transcript of Tax Return
Year-to-Date Profit and Loss Statements
A year-to-date profit and loss statement is not routinely required, but it enters the picture when your loan application is dated more than 120 days after the close of your business’s tax year.9Fannie Mae.