How a Lender Counts Deposits to Size a Bank Statement Loan

The Quick Read: A lender sizes a bank statement loan by turning twelve months of deposits into one monthly income figure, then testing that figure against the borrower’s debts and the program’s leverage limits. The loan amount is whatever the tightest of those limits allows.

• Eligible deposits are totaled over the statement window, and non-income credits come out first.
• Business statements take a lender-set expense factor. Personal statements are generally counted at or near their full eligible amount.
• A partner’s share of the business is not the borrower’s income, so ownership share scales the figure.
• The averaged monthly number goes against debts, including the new housing payment.
• Loan size is capped separately by LTV, loan-amount limits, and reserves.

Most borrowers estimate this wrong in the same place: they treat every dollar that lands in the account as income. Lenders do not. Across the wholesale network, the first job on any alt-doc file is sorting deposits, and the sort drives everything after it.

This article walks the sequence start to finish. It covers how a lender counts deposits, the structures that exist, where the general rule breaks, and what the decision looks like in practice. For the wider picture on investor financing, see Lendmire’s complete DSCR loans guide.

What Is a Bank Statement Loan?

A bank statement loan qualifies the borrower on documented income under the applicable program, subject to lender guidelines. Instead of traditional personal-income documentation, the lender reads 12 months of personal or business bank statements and builds income from the deposits.

The programs Lendmire places files with are consumer-purpose when the property is owner-occupied. That covers a primary residence or a second home. Loan sizes typically run from about $125,000 to $3,500,000, and reserves commonly sit around six months of the housing payment. Leverage depends on occupancy and transaction type, covered below.

Footprint matters here too. Program terms follow each lender’s own sheet and vary by file.

Key Terms Defined

Eligible deposit: a credit to the account that the lender accepts as business or personal income, as opposed to a transfer, refund, or loan.

Expense factor: the percentage of business deposits the lender treats as operating costs and removes before counting income.

Ownership share: the borrower’s percentage of the business, used to scale income when the account is shared.

Qualifying income: the monthly figure left after exclusions, the expense factor, and ownership share, averaged across the window.

DTI (debt-to-income): monthly obligations divided by qualifying income.

LTV (loan-to-value): the loan amount divided by the property value or price, capped by program, occupancy, and transaction type.

The Path From Deposits to Loan Size

The sequence is the same on nearly every file, even though each lender sets its own numbers. Here is the order underwriting works in.

1. Choose the window and account type. Statements are personal or business. Some programs let the borrower pick whichever tells the stronger story, and many fix the window at 12 months. Complete statements matter: every page, consecutive months, no gaps.

2. Scrub the deposits. Transfers between the borrower’s own accounts come out. So do loan proceeds, refunds, one-time windfalls, and gifts. Deposits that do not fit a self-employed income pattern get questioned.

3. Apply the expense factor on business accounts. The lender sets it, not the borrower. Practitioner explainers such as Kubera describe it as a percentage of business deposits treated as costs, and note that a CPA-prepared profit-and-loss statement can sometimes support a lower one. Where the program allows that, the lender decides whether to accept it.

4. Apply ownership share. If the borrower owns part of the business, only that part counts.

5. Average over the window. The adjusted total is divided by the number of months. A strong season and a weak season blend into one number.

6. Test against debts. The monthly figure is set against obligations, including the new housing payment. Credit, assets, and reserves are tested on their own.

The formula in plain words: eligible deposits, divided by months, reduced by the expense factor, scaled by ownership share. The result is qualifying income.

Here is the catch. Different lenders can run identical statements and land on different numbers, because the factor and the exclusion rules belong to the lender. A few lenders in the network will accept a documented lower factor. The strictest overlays will not.

Deposit Sorting: What Counts, What Comes Out

The sorting step decides the file. This table shows how deposits generally fall, though each lender sets its own rules.

Two traps show up often. The first is double counting: when business money moves into a personal account and both sets of statements are submitted, the same dollars can appear twice. Lenders count them once. The second is commingling. Wages, side income, and business receipts in one account make the sort harder, and files with messy accounts draw more questions.

A large deposit is rarely fatal. Each lender sets its own trigger, so the same deposit can be waived at one and conditioned at another. An undocumented deposit is usually just left out of income. The loss is a lower number, not a denied file.

Personal vs. Business Statements

Where the money actually lands should drive the choice. If business income flows into a personal account, personal statements may fit. If the borrower keeps a clean operating account, business statements work, but the factor will cut the figure. Some programs let the lender run both and use the stronger result. Across the network, comparing both scenarios is a common first step.

From Income to Loan Size

Qualifying income is not the loan amount. Several limits each get a vote, and the lowest one binds.

• Income and DTI. The qualifying income must carry the new housing payment plus existing debts. The CFPB’s compliance guide on ability-to-repay says a non-QM lender must consider and verify income or assets and debts, and consider DTI or residual income, without setting a specific threshold. That is why each lender writes its own cap.
• LTV. Leverage depends on occupancy and transaction. On a primary-residence purchase or rate-term refinance, select lenders go up to 90% LTV, with stronger files earning the top of that range. On an owner-occupied cash-out, a primary residence goes up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio. A second-home cash-out goes up to 75% LTV. On an investment-property cash-out, leverage tops out around 75% LTV. Investment purchase leverage on bank statement documentation varies by lender.
• Loan-amount limits. The program range runs from roughly $125,000 to $3,500,000.
• Reserves and cash to close. Assets for the down payment, closing costs, and reserves are tested separately from income. Reserves commonly run around six months of the housing payment. Strong income does not replace thin reserves.

A borrower with high deposits but heavy existing debt will often hit the DTI limit first. A borrower with clean income and low debt will often hit the LTV cap first. Knowing which limit binds tells you which lever to pull.

What Moves the Number

• Documenting the expense factor. Where the program allows it, an accountant-prepared ratio can improve the factor and the income figure.
• Paying down debt. Lower obligations free room under the DTI limit without changing income.
• Putting more down. A larger down payment brings the loan under the LTV cap even when income is the tight spot.
• Choosing the window. A growing business may do better on a shorter average, while a seasonal one may do better on a longer average, where the program allows the choice.
• Cleaning up deposits. Separating personal and business accounts before the statement window starts reduces the number of deposits that need explaining.

Account hygiene works forward only. Statements already on the page cannot be rewritten, so cleanup helps the months still ahead.

Unusual Deposits and How to Document Them

When a deposit looks out of pattern, the underwriter wants the source in writing. A business-to-personal transfer that is clearly from a business account, not a client payment, may need a letter of explanation tying it to business income. A large deposit may need the document that created it: a sale agreement, a settlement statement, or a payout record.

The regulatory reason is straightforward. The CFPB’s updated ability-to-repay guide gives an example of a lender that fails the verification requirement: it sees an unidentified deposit and takes no steps to confirm it is personal income and not, for example, loan proceeds. Lenders strip out or document deposits for that reason.

Declining deposits are a separate issue. Lenders apply declining-income rules and limits on overdraft or NSF activity, so a falling trend can cut the figure further than the average alone suggests.

When a Different Loan Type Sizes Better

Occupancy decides the regime. An owner-occupied file is a consumer mortgage, and TRID applies. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is business-purpose and exempt from TRID. The two should never be mixed on a single file.

For an investor, the real question is which income story is stronger. A bank statement loan is reviewed on the borrower’s cash flow, which puts DTI in play, and every new financed property adds debt against the same income base. A property-count limit can stall a scaling plan. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, so it sidesteps that personal-income ceiling. Leverage guidance for investor purchases belongs on the DSCR side.

Another option is asset depletion, which qualifies from liquid assets and runs to about 80% LTV on a primary residence. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.

Before You Apply

• Pull 12 months of complete statements, with every page and no gaps.
• Mark each deposit as income, transfer, refund, loan, or gift.
• Separate personal and business money going forward.
• Gather source documents for any large deposit.
• List monthly debts, since DTI will use them.
• Confirm assets for the down payment and about six months of reserves.

If you are self-employed and want to see how the numbers work, Lendmire can help you compare bank statement loan options based on your deposits, the property, credit profile, leverage, and your goals. Call 828-256-2183 or request a quote through Lendmire’s quote page. For the sorting rules in more depth, Lendmire’s piece How a Lender Counts Large Deposits on an S-Corp or LLC Bank Statement Loan covers entity accounts in detail. All figures here reflect select wholesale-network guidelines and are not a commitment to lend. Tax treatment varies; consult a qualified professional.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage broker licensed for consumer lending in 16 states. Bank statement, P&L-only, 1099-only and asset-based mortgages for self-employed and high-net-worth borrowers are arranged through wholesale lenders on primary residences, second homes and investment properties; every file is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Kubera: Bank Statement Loan

2. CFPB’s compliance guide

3. CFPB ATR/QM Small Entity Compliance Guide (April 2021 edition)