How does underwriting evaluate self-employment income and determine what counts?
Key Takeaways
- Underwriters review two years of personal and business tax returns to verify income.
- Net business income gets adjusted by adding back depreciation and other eligible deductions.
- Income averaging over two years determines your qualifying amount for loan approval.
How do underwriters evaluate my self-employment income?
You want to know how underwriting looks at self-employment income and what documentation counts toward your loan qualification. Self-employed borrowers face different income verification requirements than W-2 employees because their income can vary year to year.
Underwriters typically review two years of tax returns, including your personal 1040 and business returns (1120, 1120S, or Schedule C). They calculate your qualifying income by taking your net business income and adding back certain deductions like depreciation, depletion, and one-time write-offs. The lender averages this adjusted income over the two-year period. If your income shows an upward trend, some lenders use just the most recent year.
Check that your tax returns show consistent or growing income over the review period. Gather your signed tax returns, business financial statements, and a year-to-date profit and loss statement prepared by your accountant. Some lenders also accept bank statements showing business deposits as additional documentation.
You can work with a CPA to optimize your tax strategy before applying, provide detailed explanations for any income fluctuations, or consider lenders that specialize in self-employed borrowers and offer alternative documentation programs. Share your complete financial picture with the lender and they can walk you through what income calculations work best for your situation.
About the Author

Dan Green
20-year Mortgage Expert
Dan Green is a mortgage expert with over 20 years of direct mortgage experience. He has helped millions of homebuyers navigate their mortgages and is regularly cited by the press for his mortgage insights. Dan combines deep industry knowledge with clear, practical guidance to help buyers make informed decisions about their home financing.
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