Mortgages for S-corp and partnership owners on K-1 income in Arizona.
Mike Certo · Cornerstone First Mortgage · NMLS #260555 ·
Business owners earn real income, but it arrives in pieces. Part shows up as a W-2 salary. Part flows through a K-1. Some stays in the company. We pull those pieces together and qualify you on what actually reaches you, not on a single line of your tax return.
What income do we use for a business owner?
We use the income that reaches you and that the business can keep producing. For an S-corp owner that usually means two things added together: the W-2 wages you pay yourself, and the ordinary business income on your K-1. We average both over two years. For a partnership or multi-member LLC, the income is the ordinary business income reported on your K-1, plus guaranteed payments where they apply.
We do not stop at the tax return. We can add back non-cash deductions such as depreciation, depletion, and amortization, because those reduce your taxable income without taking cash out of your pocket. That add-back often raises the income we can use above the net figure on your return.
This explains how we read these documents for mortgage underwriting — it is not tax advice. Keep entity and filing decisions with your CPA.
How does income count by entity type?
How we treat your income depends on your business structure. The table below shows what counts and what we ask you to document for each common entity type. If you run more than one entity, we look at each one on its own and then combine the results.
| Entity type | How income counts | What we document |
|---|---|---|
| S-corp | W-2 wages you pay yourself plus ordinary business income on your K-1, averaged over two years. Non-cash deductions can be added back. | Two years of K-1s and W-2s, the 1120-S business return, and two years of personal returns. |
| Partnership | Ordinary business income on your K-1 plus guaranteed payments, averaged over two years, with non-cash add-backs. | Two years of K-1s, the 1065 partnership return, and two years of personal returns. |
| Multi-member LLC | Treated like a partnership or an S-corp, depending on how the LLC files. Income flows through your K-1. | Two years of K-1s, the 1065 or 1120-S return, and two years of personal returns. |
| Sole proprietor | No K-1. We use the net profit on your Schedule C, averaged over two years, with non-cash add-backs. | Two years of personal returns with Schedule C. No separate business return is filed. |
| Any of the above (alternative) | When tax returns show too little income, we use deposits instead, with an expense factor applied. | 12 to 24 months of business or personal bank statements. No tax return income needed. |
Why does owning 25% change everything?
Once you own 25% or more of a business, underwriting treats you as self-employed. That single line decides which documents you need. Below 25%, your K-1 income can sometimes be treated more like passive investment income, and the rules are different. At 25% or more, we document the full self-employed file: two years of personal returns and the matching business return for your entity.
The 25% line matters for another reason. If your ownership crosses 25%, we have to confirm the business itself is stable enough to keep paying you. That is why we review the 1120-S or 1065 return, not just your personal one. A strong personal return on top of a shrinking business return still raises questions we have to answer.
Does the W-2 from my own S-corp count?
Yes. The salary you pay yourself through your own S-corp counts as qualifying income. We treat it differently from an ordinary employee paycheck because you control the company that issues it. So we pair the W-2 wages with the K-1 ordinary business income and check the 1120-S return to confirm the company supports both.
This split is an advantage. A sole proprietor shows all income on one Schedule C, which write-offs can shrink fast. An S-corp owner shows part of the income as a clean, documented salary. That salary portion is steady and easy to verify, which often makes the S-corp owner easier to qualify than a sole proprietor earning the same total.
What about retained earnings and distributions?
Distributions you actually take from the business can support your file, especially when they line up with the ordinary business income on your K-1. Distributions that exceed what the company earned get a closer look, because they can drain the business rather than reflect real, repeatable income.
Retained earnings are different. Money the company keeps on its books usually does not count as your personal qualifying income, since it has not reached you. There are cases where access to those funds can be shown, but the default is that retained earnings stay with the business. We focus on the income that flows through to you and that the company can keep generating.
How do write-offs cut my qualifying income?
Here is the math that surprises owners. Say your K-1 shows $90,000 in ordinary business income after the company took $40,000 in deductions, and $25,000 of that was depreciation. We start with the $90,000, add back the $25,000 in depreciation, and qualify you on roughly $115,000. That add-back is real income for mortgage purposes because depreciation never left your bank account.
The trap is the deductions that are real cash. Vehicle expenses, equipment you actually bought, supplies, and similar costs do leave your account, so we cannot add them back. Owners who write off aggressively to cut taxes often find their qualifying income is lower than they expected. The detail on how each deduction is treated lives in our guide to how write-offs affect mortgage qualifying income.
When is a bank statement loan the better path?
When your tax returns show strong write-offs and a low taxable net, the returns work against you. A bank statement loan fixes that by using your real deposits instead of your tax return income.
Here is how it works. We review 12 or 24 months of your business or personal bank statements and total the deposits. Then we apply an expense factor, often 50% for a typical business account, to land on a qualifying income. For owners whose deposits run well above their taxable net, this usually produces a higher income figure than the K-1 path. See bank statement loans for the full breakdown.
For most owners we still look at conventional financing first, because the pricing is better when the tax-return income is there. Bank statement and profit-and-loss programs are the backup when the returns do not show enough. If your accountant prepares a clean profit-and-loss statement, our profit and loss only loans can sometimes qualify you on that alone.
Credit of 620 or higher and a down payment in the 10% to 20% range cover most of these paths. Reserves of a few months of housing payment after closing help, and a steady or rising income trend matters more than any single year. Mike can run your numbers across every path and tell you which one approves you for the most.
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S-Corp and K-1 Mortgage Arizona — Frequently Asked Questions
Can I use K-1 income to qualify for a mortgage?
Yes. We qualify business owners on K-1 income from an S-corp, partnership, or multi-member LLC. We use the ordinary business income on your Schedule K-1, averaged over two years, and we can add back non-cash deductions like depreciation and depletion. We also confirm the income is stable and that the business can keep producing it. If your K-1 shows a loss or low ordinary income, we look at your W-2 wages from the company, your distributions, or a bank statement program instead.
How do S-corp owners qualify for a mortgage?
We add together the W-2 wages you pay yourself from the S-corp and the ordinary business income from your K-1, then average that over two years. We review the 1120-S business return to confirm the company is healthy and that distributions are supported by earnings. If you own 25 percent or more, underwriting treats you as self-employed, so we also document two years of personal and business tax returns. When write-offs pull your taxable income down too far, a bank statement loan using 12 to 24 months of deposits is the alternative.
Does my W-2 from my own S-corp count as income?
Yes. The W-2 salary you pay yourself from your own S-corp counts as qualifying income. Because you own the company, we do not treat it like an ordinary employee paycheck. We pair the W-2 wages with the K-1 ordinary business income and review the 1120-S return to make sure the wages are consistent and the business supports them. This is one reason S-corp owners often qualify more easily than sole proprietors: part of the income arrives as a clean, documented salary.
Can I use business income to qualify for a mortgage?
Yes, when you own enough of the business and the income reaches you. For owners with 25 percent or more, we use the ordinary business income passed through on the K-1 plus any W-2 wages, and we can add back non-cash deductions. Retained earnings the company keeps usually do not count unless you can show access to them. If your returns show low income after write-offs, we can use 12 to 24 months of business bank statements with an expense factor instead of the tax returns.