How To Explain A Declining Year On A Bank Statement Loan With K-1 Income — The Quick Read: Underwriters treat a declining year as a trend to discount, not a number to average away. A K-1 that shows lower ordinary income than the prior year gets a lower-of-two-years read, plus a liquidity check if the income wasn’t actually distributed in cash. The fix is a one-page explanation backed by evidence — a signed replacement contract, a current profit-and-loss statement, a CPA letter — not a verbal reassurance that next year looks better.
Business owners with a rough K-1 year face a specific problem. The bank statement deposits might look fine. The K-1 might not. Or both might be soft at once, and the two documents tell different stories about the same business. Getting ahead of that mismatch, in writing, before an underwriter flags it, is most of the work.
Key Terms Defined
Bank statement loan: a mortgage that qualifies a borrower using 12 or 24 months of bank deposits instead of traditional personal-income documentation or pay stubs.
K-1 ordinary income: the borrower’s pro-rata share of a partnership’s or S-corp’s taxable earnings, whether or not that money was actually paid out.
Distributions: the actual cash paid to the borrower from the business, reported separately from ordinary income on the same K-1.
Lower-of logic: an underwriting approach that qualifies a declining-income borrower using the more conservative of the recent year or the multi-year average, rather than a simple blend.
Expense ratio: the percentage of gross bank deposits an underwriter deducts before counting the rest as qualifying income.
Why Underwriters Discount A Decline Instead Of Averaging It
A strong current year does not cancel out a weak prior one. Underwriters look at the trend line, not just the most recent data point, and a downward slope gets treated as a risk signal even if last year’s number alone would qualify.
The direction of travel across the industry — non-QM and agency alike — is to discount the decline rather than average through it. Fannie Mae’s selling guide requires lenders to use the lower of the two-year average or the most recent year when self-employed income is falling. That specific rule governs agency loans, not bank statement or DSCR files, but the logic behind it — never let a rising average paper over a real decline — shows up across non-QM underwriting too.
Key takeaways on how the decline gets handled:
- A negative trend is scrutinized on its own, separate from the absolute income level.
- Averaging a strong year with a weak one is generally not accepted once the drop is material.
- The reason for the decline and whether it has stopped matter more than the raw percentage.
- K-1 ordinary income and bank deposits can move in opposite directions in the same file.
- A written explanation with supporting documents, not a verbal assurance, is what moves a file forward.
What Makes A K-1 Different From A Bank Deposit
A K-1 reports a tax allocation. A bank deposit reports cash that actually moved. Those are not the same figure, and a declining K-1 doesn’t automatically mean declining cash flow — or the reverse.
The IRS Shareholder’s Instructions for Schedule K-1 (Form 1120-S) define box 1 as the shareholder’s share of ordinary business income, a figure that can sit well above or below what was actually paid to the owner that year. A business can show a shrinking box 1 while gross deposits hold flat, because retained earnings, equipment purchases, or reinvestment reduce taxable profit without reducing cash in the owner’s pocket. It can also run the other way — deposits fall while the K-1 still shows healthy paper income, because the business took on debt or lost a client late in the year.
Ownership percentage decides which rulebook gets applied at all. Zeitro notes that a 25% ownership threshold commonly separates full self-employed underwriting treatment from a passive “other income” read — an agency-derived convention that many non-QM shops mirror rather than a fixed rule everywhere.
Does A Declining K-1 Sink The File?
Not on its own. A declining K-1 gets discounted, sometimes replaced with distributions instead of ordinary income, and sometimes offset by strong bank deposits — but a K-1 showing an actual business loss can reduce qualifying income further, and a K-1 tied to a business that’s since been sold or restructured usually can’t be used at all.
If the K-1 shows ordinary income that was never distributed in cash, the file typically needs a separate liquidity showing — evidence the business had enough cash on hand to have paid that income out, even if it didn’t. Without that showing, underwriters lean on the lower, actually-distributed figure instead. That’s a documentation gap, not a decline problem, but the two frequently show up in the same file together.
A K-1 loss is a different animal entirely. Rather than getting zeroed out, an ordinary business loss on a K-1 is generally subtracted from other qualifying income — W-2 wages included — which lowers total qualifying income rather than leaving it untouched.
The Explanation That Actually Works
A credible letter of explanation is one page, states the reason for the decline plainly, and attaches evidence — it does not predict a better year ahead. Underwriters weigh documented, specific reasons far more heavily than general statements about the economy or verbal assurances.
Reasons that tend to hold up, when paired with paper:
- A lost client replaced by a signed contract or task order.
- A temporary medical leave, with a return-to-work letter.
- A one-time equipment, marketing, or staffing expense that suppressed profit for a single period.
- Startup-year costs that no longer recur, confirmed by a CPA letter.
Reasons that rarely survive review: a general reference to slow conditions, a claim that business is picking up with nothing to show it, or a forward-looking prediction with no supporting document behind it.
The single most persuasive document is often the most recent one. A current profit-and-loss statement dated within the last couple of months shows an underwriter what’s happening now, not just what a tax return said about last year. Pair that with a CPA letter — tax transcripts confirm a return was filed as submitted, but they don’t explain cash flow or business continuity on their own, so many files need both a transcript and a CPA letter addressing the trend directly.
12 Months Or 24? Picking The Right Statement Window
The choice depends on which direction the trend is running, not personal preference. If the most recent months are stronger than the older ones, a 12-month statement period uses only the strongest stretch. If income has been flat or the file needs a longer track record to prove stability, 24 months tells a steadier story.
Across the wholesale programs Lendmire places files with, this is a real structural choice, not just a technicality — a borrower whose K-1 shows a rough prior year but whose recent deposits have already turned the corner is often better served by the shorter window, because it lets the bank statement side of the file carry the narrative while the K-1 explanation handles the tax-year gap separately. Neither window erases a genuine decline, though. A drop that shows up in both the 12-month and 24-month view is still a drop, and it still needs the same written explanation regardless of which period gets submitted.
Worked Example: A Partner With A Soft K-1 Year
Picture a partner in a professional services firm whose K-1 ordinary income dropped year over year after the firm lost its largest client mid-year and brought on a smaller replacement account. Bank deposits into the partner’s personal account, however, stayed close to flat, because most of the shortfall showed up in retained business earnings rather than in the partner’s actual draw.
On a bank statement file, the underwriter would run the deposit-based calculation as usual — eligible deposits divided by the statement months, after an expense ratio — while separately noting the K-1 decline as a trend flag needing its own explanation. The letter of explanation would name the lost client, attach the signed replacement contract, and include a CPA letter confirming distributions have stayed consistent with the level of income being used to qualify. If that consistency can be documented, Fannie Mae’s B3-3.3-07 guidance — cited here only as a contrast point, since it governs agency loans, not bank statement or DSCR files — notes that no further liquidity documentation is typically required once distributions match the income being claimed.
Sized against Lendmire’s bank statement programs, that same file could run through a portfolio non-QM path to $6,000,000 or a bank portfolio jumbo path carrying twelve-month-statement files as high as $30,000,000 on its own leverage ladder — 65% loan-to-value to $5,000,000, stepping down to 60% at the $10,000,000 mark and 55% toward the top of the range, interest-only capped at 60% or the band’s ceiling, whichever is lower. On a primary residence, leverage steps down as size grows too — 90% under $1,000,000, working down through the mid-tiers to 75% at the top credit band near $4,000,000, then case-by-case review above that, before the bank program’s own ladder takes over. Second homes and investment properties generally run about five points lower at every size tier. None of this is a guaranteed outcome for any specific borrower — every file still gets underwritten on its own facts.
When To Consider A Different Path Entirely
If the K-1 fight feels like more trouble than it’s worth, an investor buying rental property doesn’t have to relitigate a bad business year at all. A DSCR loan is reviewed primarily on the property’s rental income covering the payment, subject to lender guidelines, which sidesteps the K-1-versus-deposits reconciliation problem for that specific purchase. Lendmire’s complete DSCR loans guide walks through how that qualification path works property by property, and for founders whose K-1 already looks stale after a sale or restructuring, the mechanics of using K-1 income on a bank statement loan covers where that document still helps and where it doesn’t.
Reserve requirements scale with loan size on these programs too — generally three months of reserves to $500,000, six months to $1,500,000, and nine months above that, plus two additional months for each other financed property up to a twelve-month cap, with first-time investors typically held to twelve months regardless of size. Credit sits at a 660 floor on the portfolio program, 700 above the super-jumbo line, with debt-to-income allowed up to 50% on most files.
DSCR loans are business-purpose, non-owner-occupied investment products. Because of that, they’re reviewed differently than a standard owner-occupied mortgage and sit outside typical consumer-disclosure timelines that apply to owner-occupied lending.
This article is not legal or tax advice. Every borrower’s K-1 structure, ownership percentage, and business facts are different, and readers should talk to a qualified CPA or attorney about their own situation before making a decision.
Frequently Asked Questions
Can a strong current year offset last year’s decline on a K-1?
Generally not by itself. Underwriters look at the trend across periods, and a single strong recent year doesn’t erase a documented downward slope — it can help the narrative, especially with a current profit-and-loss statement, but it rarely replaces a full explanation of why the prior year was weaker.
Do bank deposits and K-1 income have to move in the same direction?
No. A K-1 reports a tax allocation of ordinary income; a bank deposit reports cash that actually moved. A business can show declining taxable profit from reinvestment or write-offs while the owner’s actual deposits stay flat, or the reverse can happen if the business took on new obligations.
What if the K-1 shows a business loss instead of just lower income?
A K-1 loss is typically subtracted from other qualifying income rather than simply excluded, which can reduce total qualifying income below what it would have been without the K-1 at all. That makes a loss year meaningfully different from a lower-but-still-positive year.
Is a CPA letter enough on its own to explain the decline?
Usually not alone. Tax transcripts confirm what was filed; a CPA letter explains the trend and business continuity. Many files need both, along with a current profit-and-loss statement and, where relevant, a signed contract showing a lost client has been replaced.
Does 12-month or 24-month bank statement selection change how the K-1 decline gets treated? The statement period affects how deposits get calculated, not how the K-1 trend itself gets reviewed. A shorter window can favor a borrower whose recent deposits have already recovered, but a genuine K-1 decline still needs its own written explanation regardless of which period is submitted.
For current guidelines and terms, see Lendmire’s super jumbo bank statement loan programs page.
Self-employed borrowers can compare both super jumbo programs on Lendmire’s self-employed mortgages page.
About Lendmire
Lendmire (NMLS# 2371349) is a DSCR-focused mortgage broker that helps arrange investor financing across 40 markets, including Washington, D.C., through wholesale and investor-lending channels. DSCR eligibility is generally reviewed by the lender around the property’s rental income rather than personal income documentation, subject to lender guidelines — which works for self-employed investors, LLC operators, and portfolios above four financed properties. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide – B3-3.2-01, Self-Employed Borrower Underwriting Factors
2. IRS – Shareholder’s Instructions for Schedule K-1 (Form 1120-S)
3. Zeitro – Can I Use K-1 Income to Qualify a Borrower?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.
