5 minute read
When a lender looks at your client’s Schedule K-1, the number they start with is usually not the number your client thinks it is. Lenders begin with ordinary business income reported on the K-1, then treat cash distributions as evidence that your client can actually reach that income, not as the income itself. That single distinction is behind most of the K-1 loan files I see stall in underwriting.
Key takeaways
- Ordinary income on the K-1 is the starting point. Distributions demonstrate access.
- The 25% ownership line changes the documentation burden substantially.
- Adequate business liquidity is a real underwriting test, commonly measured with a current or quick ratio.
- Two years of K-1s is the normal expectation, and a declining second year invites questions.
- The extended September 15 filing deadline is the moment to catch problems, not October.
Who this is for
This is written for San Diego CPAs and tax preparers with business-owner clients: partnerships, LLCs taxed as partnerships, and S corporations. If you have spent September finishing extended Forms 1065 and 1120-S ahead of the September 15 extended deadline, the K-1s you are issuing this week will be the documents a lender reads if that client buys or refinances in the next twelve months.
I am not writing this to tell you how to prepare a return. You know that work far better than I do. I am writing it because the mortgage side of the file is where a perfectly correct return sometimes produces an outcome your client did not expect, and a short conversation in September prevents a difficult one in March.
The belief that causes the most trouble
Most business owners believe the income a lender uses is the money they actually took out of the company. It is an intuitive belief and it is usually backwards.
Under Fannie Mae’s Selling Guide treatment of K-1 income, ordinary business income reported on the Schedule K-1 may be included in the borrower’s cash flow provided the lender can confirm the business has adequate liquidity to support the withdrawal of those earnings. Distributions matter because they answer the access question. If the K-1s show a documented, stable history of cash distributions consistent with the level of business income being used to qualify, the lender generally does not need to go further into a liquidity analysis.
So a client who leaves earnings in the company for good business reasons is not disqualified from using that income. They are simply going to be asked to prove the company could have paid it out. That is a different conversation, and it is one the business’s own balance sheet usually answers.
The 25% ownership line
Ownership percentage is the hinge the whole file turns on.
| Ownership | What the lender generally needs |
|---|---|
| Less than 25% | A lighter path. The borrower is usually not treated as self-employed, and the analysis leans on the K-1 itself plus a history of receipt. |
| 25% or more | The borrower is self-employed for underwriting purposes. Expect business returns, the full K-1, and a liquidity review of the entity. |
This catches people. A client with a 24% interest in one operating company and a 30% interest in a small side LLC is self-employed because of the side LLC, and the side LLC’s returns come into the file even if it produces almost nothing. When you are the one who knows the cap table, flagging that early saves two weeks.
What “adequate business liquidity” actually means
When a liquidity review is required, lenders commonly run a ratio off the business balance sheet. The current ratio divides current assets by current liabilities. The quick ratio does the same but strips out inventory. A result of 1.0 or higher is generally read as the business being able to support the withdrawal of earnings.
A few things follow from that, and they are all things a CPA controls or at least sees first:
- A balance sheet loaded with inventory can pass a current ratio and fail a quick ratio. Knowing which one a lender is applying changes the answer.
- A shareholder loan sitting in current liabilities can drag the ratio below 1.0 even when the business is healthy.
- Year-end timing matters. A December 31 snapshot taken right after a large payables run can misrepresent a normal year.
None of that is a reason to change how you prepare the return. It is a reason to know, before the client makes an offer on a house, whether the balance sheet tells a flattering story or an awkward one.
Guaranteed payments, losses, and the second year
Three details that decide more files than they should:
Guaranteed payments to partners. These are frequently the steadiest, cleanest income on the whole return, and they are often overlooked by the borrower when they describe their income out loud. Point them out.
Losses are not neutral. A K-1 loss from a second entity generally reduces qualifying income, even if the loss was entirely non-cash. A client with a strong operating business and a small real estate LLC throwing off paper losses can be surprised by how much those losses cost on the mortgage side. The depreciation piece is often added back, but not all of it and not automatically.
Two years, trending the right way. Two years of K-1s is the normal expectation. If year two is materially lower than year one, the lower figure usually drives the analysis and the file needs an explanation. If your client had a genuinely unusual year, a short written explanation from you carries real weight with an underwriter. I have seen a two-paragraph CPA letter move a file that nothing else was moving.
The tension nobody enjoys naming
Your job includes legally minimizing your client’s taxable income. The mortgage process rewards showing income. Those two things pull in opposite directions and pretending otherwise helps no one.
I am not going to suggest anyone report income they did not earn, and I would not work with a CPA who would. The practical answer is timing. If a client is planning to buy or refinance inside the next two years, that fact belongs in the conversation while the return is still being planned, not after it is filed. Sometimes the right call is still the aggressive one and the client buys less house. Sometimes a legitimate structural choice, made early and for real business reasons, changes the picture. Either way, the client should make that trade knowingly.
For context on the borrowing side of that math: Freddie Mac’s Primary Mortgage Market Survey put the 30-year fixed national average at 6.76% for the week of September 10, 2026, up from 6.71% the prior week, with the 15-year at 6.09%. A year ago the 30-year averaged 6.35%. Those are national averages, not offers or quotes, and an individual borrower’s terms depend on the full file.
When to skip all of this
If your client’s K-1 interest is small, passive, and not needed to make the numbers work, leave it alone. Dragging a minor entity’s returns into a file that already qualifies on W-2 income adds documentation, adds conditions, and adds a chance for something to look odd under a microscope. More income on paper is not automatically a better file. Sometimes the cleanest path is the narrow one.
Frequently asked questions
Can a client use K-1 income if the business never distributed cash?
Potentially, yes, but the lender will need to confirm the business had adequate liquidity to support withdrawing those earnings. Without a distribution history, the balance sheet does the work.
Does a K-1 loss always reduce qualifying income?
Generally it reduces it, though certain non-cash items such as depreciation are commonly added back. The specifics depend on the entity type and the loan program, which is why the actual returns matter more than a summary.
My client owns exactly 25%. Which side of the line is that?
Twenty-five percent or more puts the borrower on the self-employed side. Exactly 25% counts.
How far back will a lender look?
Two years of returns is the standard expectation for a self-employed borrower. A shorter history is not automatically fatal but it narrows the options considerably.
What is the single most useful thing I can send with a client referral?
The last two years of business returns with all K-1s, and one sentence about anything unusual in them. That sentence saves more time than the rest of the file combined.
Related reading on this site
- How self-employed qualifying income is calculated covers the broader framework this post sits inside, including sole proprietors and add-backs.
- Interest tracing on a cash-out refinance is the other place CPA and lender work overlaps most often.
- 1031 exchange financing for clients moving investment property.
Let’s build a referral process that works both directions
If you have clients whose returns and home financing keep colliding, I am happy to walk through how we structure those files together. No pitch, no client list required. Just a working conversation between two people who see the same taxpayer from different angles.
Ron Berg is a mortgage professional with The Berg Group, powered by C2 Financial Corp, working with San Diego buyers, homeowners, and the CPAs and real estate professionals who advise them. Connect on Instagram @calimortgageguy or book a partnership call.
Ron Berg | NMLS #974839 | C2 Financial Corp NMLS #135622 | Equal Housing Opportunity. This article is educational and is not tax, legal, or financial advice, and is not an offer or commitment to lend. Rates cited are national averages published by Freddie Mac, not quotes. Underwriting guidelines referenced are general and subject to change; individual loan terms depend on a complete application and full review. Clients should rely on their own tax professional for tax matters.











