San Diego runs on small business. Contractors in North County, restaurant owners in South Park, consultants working out of a spare bedroom in Carlsbad, physicians and dentists with their own practices, and a very large population of people who left a corporate job to work for themselves. Between them they make up a meaningful share of everyone trying to buy a home in this county.
They also make up a disproportionate share of the people who get told no.
Not because they can't afford the house. Because of how mortgage underwriting reads a tax return.
The problem is the write-offs
If you are a W-2 employee, qualifying income is simple: it's what the pay stub says. If you're self-employed, a lender starts with your net income after business expenses — the number at the bottom of your Schedule C or your K-1.
That's the number your accountant has spent years making as small as legally possible. Vehicle expenses, home office, equipment, depreciation, travel, meals, retirement contributions, health insurance. Every one of those is a legitimate deduction that lowers your tax bill, and every one of those also lowers the income a conventional lender is willing to count.
The result is a borrower with $300,000 in deposits and a healthy business who qualifies, on paper, for far less house than they can comfortably afford. Some of those deductions get added back — depreciation and depletion usually do — but most don't.
This is not a loophole and it is not anyone doing anything wrong. It's just two systems measuring two different things. The tax code measures profit. Mortgage underwriting measures repayment capacity. For a business owner, those diverge badly.
What actually gets counted on a conventional loan
Before reaching for anything exotic, it's worth knowing what standard financing will do, because sometimes it's enough.
A conventional or FHA loan generally wants two years of self-employment history in the same line of work, two years of personal and business tax returns, and a year-to-date profit and loss statement. Income is averaged across those two years. If year two is lower than year one, most lenders use the lower figure, not the average — a declining trend gets treated as the new normal.
A few things help more than people expect:
- A shorter history can work. Some lenders will accept one year of self-employment if you have a documented track record in the same field beforehand. Leaving a salaried engineering job to consult in the same industry is a very different risk than changing careers.
- Add-backs matter. Depreciation, amortization, depletion, and certain one-time expenses are typically added back to net income. On a business with real equipment or vehicles, that can move the number materially.
- Business debt paid by the business can sometimes be excluded from your personal debt-to-income ratio if you can show twelve months of payments coming from a business account.
If, after all that, the qualifying income still doesn't reach, the answer isn't that you can't buy. It's that you need a program that measures differently.
Bank statement loans
A bank statement loan sets the tax returns aside and qualifies you on deposits instead. The lender reviews twelve or twenty-four months of personal or business bank statements, totals the qualifying deposits, and applies an expense factor to arrive at usable income.
For most self-employed borrowers this is the single largest swing in what they can qualify for, because it measures money coming in rather than profit left over after deductions.
What matters in practice:
- Deposits need to look like business revenue. Transfers between your own accounts, loan proceeds, and one-off large deposits generally get stripped out. Consistent customer payments are what counts.
- Keep business and personal separate. Commingled accounts make the review slower and the result worse. If you're twelve months from buying, opening a clean business account now is one of the highest-return things you can do.
- The expense factor is negotiable in the sense that it varies. Different lenders use different factors, and some will use a CPA-prepared expense statement instead of a flat percentage. For a low-overhead business — consulting, most professional services — that difference is significant.
Bank statement loans price higher than conventional financing. That's the trade. The question is not whether the rate is higher, it's whether the payment works and whether the alternative is not buying at all.
Asset depletion
If you have substantial liquid assets but irregular or minimal current income — a recent business sale, a retirement, a year between ventures — an asset depletion loan can convert those assets into qualifying income.
The lender takes eligible accounts (savings, brokerage, and often retirement accounts subject to age and vesting rules), applies a haircut, divides by a term, and treats the result as monthly income. You are not required to liquidate anything. The assets simply have to exist and be documented.
This is the right tool for a fairly specific borrower: high net worth, low reportable income. Retirees and recently-exited founders are the two most common profiles in San Diego.
DSCR, if the property is an investment
If you're buying a rental rather than a primary residence, none of the above may be necessary. A DSCR loan qualifies on the property's cash flow — the rent against the payment — rather than on your personal income at all. No tax returns, no personal income verification, and the property can typically be held in an LLC.
For investors expanding a portfolio, this sidesteps the self-employment problem completely. It also means each property stands on its own, so a strong deal isn't held back by a lean tax year.
What to have ready before you apply
Whichever program you end up in, the same preparation shortens the process:
- Twelve to twenty-four months of complete bank statements, every page, including the blank ones. Underwriting genuinely does check for missing pages.
- Two years of business and personal tax returns, even for programs that won't use them — they're often still required for the file.
- A year-to-date profit and loss statement. CPA-prepared carries more weight than one you export yourself.
- Your business license or entity documents, and a CPA letter confirming how long you've been self-employed.
- An explanation for anything unusual — a large deposit, a down year, a change in business structure. Providing it up front is much faster than answering a condition later.
The part most people get wrong
The biggest mistake self-employed buyers in San Diego make is talking to one lender, getting declined on a conventional loan, and concluding they don't qualify for a mortgage.
What actually happened is that they were measured with the wrong instrument. A retail bank that offers three products will tell you no when none of the three fit. A broker with access to a range of wholesale lenders can run the same file against programs designed precisely for your situation.
If your tax return doesn't tell the whole story, that's a documentation problem, not a qualification problem. Let's talk through it — bring the last two bank statements and we can tell you fairly quickly what's realistic.