Explain A Down Year On A Bank Statement — The Quick Read: A down year on a bank statement loan does not sink a file by itself. Underwriters run a trend test on deposits, flag a negative slope, and then ask for a short written explanation backed by documents. Platform sellers on Amazon, Etsy, or Shopify tend to trigger this flag more than salaried borrowers because payouts are lumpy, seasonal, and easy to misread as decline. The fix is documentation, not disqualification.
Key things to know before building the file:
- Bank statement underwriting averages deposits over 12 or 24 months rather than comparing two tax-return years side by side.
- A negative trend gets flagged automatically by most underwriting tools, then handled with a letter of explanation.
- Personal-account deposits usually skip the expense-ratio haircut that business accounts get.
- A 1099-K shows gross payment volume, not net income — mismatches between that form and your bank deposits are common and fixable.
- Rental-property investors who also run a platform business sometimes sidestep the whole conversation by financing the property on its own rental income instead.
What Counts As A Down Year On A Bank Statement Loan?
A down year, in underwriting terms, is a negative slope in eligible deposits over the lookback period — not just one slow month. Automated income tools built for non-QM files include a declining income indicator that flags borrowers with decreasing income trends over time, which spares an underwriter from scrolling through a year of statements line by line. The tool looks at rolling three-month and six-month windows against the full period and asks whether the trend is negative, and by how much.
This is different from how a conventional loan treats income. A W-2 or two-year tax-return file usually gets compared year over year, and a meaningful drop can force the lender to use the lower year or decline the file outright. Bank statement underwriting doesn’t work off two annual snapshots. It totals deposits, strips out transfers and non-income credits, applies an expense factor on business accounts, and divides by the number of months. That arithmetic treats a down year as a data point inside a longer average, not an automatic disqualifier.
Key Terms Defined
Bank Statement Loan — a mortgage program that qualifies a self-employed borrower using deposit history instead of traditional personal-income documentation.
Expense Ratio — the percentage of gross business deposits an underwriter subtracts before counting the rest as qualifying income.
Lookback Period — the number of consecutive months of statements used to calculate average monthly income, typically 12 or 24.
Letter of Explanation (LOE) — a short, evidence-backed written statement that answers a question an underwriter has about the file, such as why deposits dropped.
1099-K — an IRS form reporting gross payment volume processed through a platform, not the seller’s actual net income.
Why Platform Sellers Get Flagged More Than Most
Platform income is naturally lumpy, and that lumpiness gets confused with decline more often than it should. A seller who does most of a year’s volume in Q4 and coasts through Q1 looks, on a monthly chart, like someone whose income is falling apart — even in a completely healthy year. Deposit averaging is built to absorb this. The math totals everything and divides by the number of months, so a business with concentrated sales and a business with even monthly sales can land on a comparable qualifying figure once the full period is counted.
The harder edge case is a genuine decline layered on top of normal seasonality. An underwriter has to separate “this is a slow month for this business type” from “this business is actually shrinking.” That separation is exactly what a documented explanation needs to make clear, and it’s also where platform sellers have real external evidence to lean on. Marketplace-wide data backs up the fact that seller margins have been under structural pressure, not just a borrower-specific problem. Third-party seller fees on the largest marketplace generated $172 billion in a recent year, an 11% increase from the prior year, and made up roughly 24% of that platform’s total net sales. Active seller counts on that same platform have been shrinking too — from 584,000 sellers in an earlier period down to 500,000 a bit over a year later, following years of steady growth. That’s external, citable evidence that a fee or competition-driven revenue dip isn’t a borrower’s excuse — it’s a documented industry trend.
The Two Levers: Lookback Window And Expense Ratio
The lookback window is the first lever a platform seller controls. A 12-month period reflects recent activity, so it works in the seller’s favor when the last year was stronger than the year before. A 24-month period smooths everything into one longer average, so it works better when income has been roughly steady, or when the most recent 12 months happen to be the weak stretch and the prior 12 offset it. There’s no universal right answer here — it depends entirely on which direction the trend is moving, and the choice can genuinely change the coverage figure.
The second lever is the expense ratio applied to your business-account deposits. Across the wholesale network Lendmire places files with, that ratio typically goes up as employee count rises and as physical-product sales enter the picture. The ratio runs lower for a service business with no employees. It runs higher for a business with a small staff. And it runs higher still for a business with a larger staff, or for any business selling a physical product — a category that covers most Amazon, Etsy, and Shopify sellers. On many files, an accountant-provided ratio or a profit-and-loss method is also available when the fixed brackets undersell the borrower’s actual margin. One detail matters a lot for platform sellers specifically: transfers from your own business account into a personal account typically count at full value. No expense haircut gets applied again on the personal side. Where the payout lands — business checking versus personal checking — genuinely changes the math. It’s worth planning that ahead of an application, rather than discovering it mid-file.
Building The Letter Of Explanation That Actually Works
An LOE that works has three parts: what happened, why it happened, and what changed since. It runs one page. Underwriters expect it to be backed by evidence, not just a narrative — a claim of “business slowed down” carries little weight without something behind it. If a contract ended and was replaced by a new one, attach the signed agreement. If the seller invested in inventory, equipment, or advertising that temporarily pulled down net deposits, attach the invoices. If a prior year included an unusual windfall that made the decline look sharper by comparison, say so plainly.
Reserves and liquidity get evaluated on their own track, separate from the income figure. A strong reserve position doesn’t erase a declining-deposit trend. But it is a real compensating factor an underwriter weighs alongside your explanation. A seller with nine months of documented reserves and a clean letter of explanation presents very differently than one with the same deposits and nothing in the bank.
For platform sellers specifically, the strongest letters do a few things a generic LOE doesn’t:
- Separate seasonal concentration from an actual downward slope, with month-by-month deposit history laid out clearly.
- Reconcile any gap between the 1099-K figure and the bank deposit figure before the underwriter has to ask.
- Point to external, citable industry pressure — rising platform fees, ad-cost inflation, marketplace competition — rather than relying only on a personal narrative.
- Show a current-period trend, even a partial one, that supports the idea that the decline is behind the business rather than ongoing.
What The 1099-K Actually Tells An Underwriter
A 1099-K reports gross payment volume, not net income, and mixing the two up is one of the most common self-inflicted problems in a platform seller’s file. The IRS is explicit that platforms are required to issue a Form 1099-K when payments for goods or services exceed $20,000 across more than 200 transactions, and separately that sellers must report all income regardless of whether a 1099-K was issued at all. That form reflects gross payout before platform commissions, fulfillment fees, shipping, advertising spend, and refunds are subtracted — so the number on the 1099-K will almost always be higher than what actually lands in the bank account.
When those two figures don’t line up, that mismatch is often the first thing an underwriter questions. A short reconciliation — fees, refunds, chargebacks — usually resolves it in a few lines. Tax treatment can depend on how funds are used and how the business or property is structured, so sellers should keep clean records and talk to a qualified tax professional rather than relying on the 1099-K total as a stand-in for actual income.
When The Property’s Income Can Carry The File Instead
Are you an investor who owns rental property and also runs a platform-selling business? There’s a different path you can take. You can qualify the loan using the property’s own rental income, instead of your personal or business earnings. DSCR loans are built for non-owner-occupied investment properties. Because they’re business-purpose loans, lenders review them differently than a standard owner-occupied mortgage. Say your e-commerce business had a down year. That may not matter much for this type of loan, if the file gets underwritten based on the property’s rent-to-payment coverage instead.
That distinction matters most when your platform-selling business is genuinely volatile or hard to document cleanly, but the rental property itself has stable, verifiable rent. Lendmire’s complete DSCR loans guide walks through how that qualification path works, property by property. What if the platform income itself is the thing being financed — say, a primary residence, rather than a rental purchase? Then the choice of which stretch of deposit history to lean on gets a fuller treatment in Lendmire’s piece on declining versus stable years when platform payouts fund the file.
Size And Leverage: What A Bank Statement File Can Actually Do
Bank statement lending in Lendmire’s wholesale network runs from $300,000 up to $30,000,000 across two distinct programs, and they don’t share one ladder. A portfolio non-QM bank-statement program carries files to roughly $6,000,000, while a separate bank portfolio program carries twelve-month-statement files to $30,000,000 on its own size bands — typically around 65% loan-to-value to $5,000,000, 60% to $10,000,000, and 55% up to $30,000,000, with interest-only capped at 60% or the band’s own ceiling, whichever is lower. Every file above $4,000,000 goes through case-by-case review before submission, regardless of which program it’s placed on.
Leverage on a primary residence typically steps down as the loan size climbs — around 90% at the smallest sizes near $1,000,000, tapering to roughly 85% near $2,000,000, 80% near $3,000,000, and 75% at the strongest credit tier up to about $4,000,000, before shifting to case-by-case review and then the bank program’s own ladder above that. Second homes and investment property generally run about five points lower at every comparable size. Credit typically needs to clear 660 on the portfolio program (680 on the bank program, and 700 above the super-jumbo threshold), debt-to-income can run as high as 50% on many files, and reserve requirements typically scale with loan size — roughly three months up to $500,000, six months up to $1,500,000, and nine months above that. None of these figures are guarantees; every file gets underwritten individually, and Lendmire works as a broker placing files across select lenders in this network rather than as the lender itself.
Are you a platform seller with strong liquid assets, but a messy deposit story? An asset-based path is sometimes the cleaner route entirely. It works by dividing your liquid assets by a set number of months, instead of relying on deposits at all. Lendmire’s breakdown of asset depletion versus a bank statement loan covers when that trade makes sense.
Common Mistakes Platform Sellers Make
A handful of avoidable mistakes show up again and again in these files:
- Assuming the 1099-K total is the real income figure, then panicking when bank deposits come in lower.
- Mixing personal and business deposits in one account, which muddies the expense-ratio calculation and makes the trend test harder to read cleanly.
- Choosing a 24-month lookback out of habit when a stronger recent 12-month period would have produced a better number.
- Writing a long, defensive LOE instead of a short, evidence-backed one — underwriters want documentation, not persuasion.
- Waiting until the file is already flagged to gather invoices, contracts, or a CPA letter, instead of assembling that evidence before the application goes in.
This is not legal or tax advice. Loan eligibility review depends on the specific lender, program, credit profile, and property involved, and program terms are subject to change and full underwriting review. Sellers with questions about how their income is reported or taxed should speak with a qualified accountant or attorney about their own situation.
Frequently Asked Questions
Will a 12-month lookback or a 24-month lookback help me more? It depends on the direction of the trend. A 12-month window tends to help when the most recent year was stronger than the one before it, since it reflects only the newer, better numbers. A 24-month window tends to help when income has been roughly steady or when a strong prior year can offset a recent soft one — there’s no single answer that works for every seller.
Does a seasonal sales pattern count as a down year? Not by itself. Deposit averaging is arithmetic, not judgment — it totals the full period and divides by the number of months, so a business with concentrated Q4 sales and one with even monthly sales can land on a similar qualifying figure. What actually gets flagged is a genuine negative slope across the whole period, not the fact that revenue clusters in certain months.
My 1099-K is much higher than my bank deposits — is that a problem? It’s a reconciliation task, not a red flag by itself. A 1099-K reports gross payment volume before platform fees, shipping, advertising costs, and refunds, so it will almost always be higher than the actual deposit that lands in the bank. A short breakdown of those deductions usually resolves the question.
Can rental income cover the file instead of my business income? Sometimes, yes. If the borrower owns a rental property alongside the platform business, the loan can potentially be structured around the property’s own rent-to-payment coverage instead of the seller’s personal or business income — subject to lender guidelines, credit profile, and property review.
How much documentation is enough for the letter of explanation? Enough to make the underwriter’s job easy, not enough to overwhelm the file. A one-page letter covering what happened, why, and what’s changed, backed by two or three concrete documents — an invoice, a contract, a CPA letter — tends to work better than a long narrative with no attachments.
If you’re a platform seller looking at financing and unsure whether your recent numbers will hold up, Lendmire can help you compare bank statement and DSCR loan options based on your deposit history, credit profile, and goals — reach out at 828-256-2183 or request a quote through Lendmire’s mortgage quote form.
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 mortgage brokerage specializing in DSCR investor loans, helping arrange financing across 40 markets, including Washington, D.C., through wholesale and investor-lending channels. The model centers on property-level rental income reviewed by the lender rather than W-2 documentation, subject to lender guidelines, suiting entity-owned and multi-property investors. Lendmire holds Scotsman Guide Top Mortgage Workplace recognition for 2025 and 2026.
Lendmire’s Top Mortgage Workplace recognition is documented by Scotsman Guide 2025 Top Mortgage Workplace and Scotsman Guide 2026 Top Mortgage Workplace.
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References
1. Ocrolus — Non-QM Underwriting Income Calculator
3. Marketplace Pulse — The Paradoxical Dependence of Amazon & Its Sellers
4. IRS — Understanding Your Form 1099-K
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.
