How Bank Statement Loans Work for Sole Proprietors Buying Investment Property

The Quick Read: A bank statement loan lets a self-employed sole proprietor qualify on the cash that moves through their accounts instead of the income on their traditional personal-income documentation. The lender averages eligible deposits over a set window, subtracts an expense factor for business accounts, and treats the result as qualifying income.

• Qualifying income comes from 12 months of business or personal bank statements, averaged, then adjusted by a lender-set expense factor.
• Not every deposit counts. Transfers, refunds, and loan proceeds are screened out.
• Investment cash-out tops out around 75% LTV, subject to lender guidelines. Investment purchase leverage varies by lender.
• Loan amounts typically run from $125,000 to $3,500,000, with reserves commonly around 6 months of the housing payment.
• The alternative for a rental is a DSCR loan, which looks at the property’s rent instead of your income.

Sole proprietors have an odd problem. You earn well, and you write off a lot, so your tax return says you earn little. A lender reading that return sees the small number, not the cash. Bank statement lending exists for that gap.

This guide walks through the mechanics start to finish, including where the usual rules bend for sole proprietors with one mixed-up checking account.

Key Terms Defined

Bank statement loan: a mortgage that is reviewed around average deposits in your bank statements instead of traditional personal-income documentation or W-2s.

Non-QM: short for non-qualified mortgage. It is a loan that follows its own lender guidelines rather than the standard rules for agency-style loans.

Expense factor: the percentage of business deposits a lender assumes goes to running the business. What remains counts as your income.

Sole proprietor: a business owner with no separate legal entity. You and the business are the same person for tax and banking purposes.

LTV (loan-to-value): the loan amount as a percentage of the property’s value or price.

Reserves: liquid savings, counted in months of housing payments, that you hold after closing.

DSCR (debt service coverage ratio): monthly rent divided by the property’s full monthly debt payment. Above 1.00 means rent covers the payment.

Business-purpose loan: credit used to buy or maintain a rental, as opposed to a home you live in.

What a Bank Statement Loan Actually Is

It is a non-QM product built for people whose income is real but hard to see on paper. Scotsman Guide describes the typical borrower: self-employed, no W-2, supplying 12 to 24 months of personal or business statements. The lender calculates income from those statements, often with a standard expense factor, or in some cases a profit-and-loss statement or an expense statement from a third-party tax professional.

Across the wholesale network Lendmire works with, the common documentation window is 12 months of business or personal statements. Some programs ask for 24. Each lender’s program sheet decides.

One myth needs killing early. This is not a no-paperwork loan. The loan is reviewed on documented income under the applicable program, subject to lender guidelines. The lender still pulls credit, checks assets, reviews debts, and looks at the property. The paper is different. The scrutiny is not.

How the Process Works, Step by Step

The process runs the same way on most files. Here is the sequence.

1. Choose the statement type and period. Personal-account deposits are often counted at 100%, while business deposits get adjusted by an expense factor, according to HousingWire. The period is typically 12 months in our network.

2. Screen the deposits. Only income-related deposits count. Transfers between your own accounts, refunds, loan proceeds, and peer-to-peer app deposits are excluded. Large one-off spikes usually need invoices or contracts behind them.

3. Average what survives. Add the eligible deposits and divide by the number of months.

4. Apply the expense factor to business accounts. HousingWire reports a 50% default with a range of 10% to 70%, depending on business type, headcount including 1099 contractors, and whether you work from a physical location or from home. Treat 50% as a common example, not a rule. The lender sets it, and no one can promise yours in advance.

5. Underwrite the rest of the file. Credit, assets, debts, reserves, and the subject property all get reviewed.

6. Property review. The lender orders an appraisal and reviews title and insurance like any mortgage.

How Your Statements Become Qualifying Income

Here is the math, with figures from HousingWire’s published walkthrough. Say twelve months of eligible business deposits total $480,000. Averaged out, that is a steady monthly deposit stream. The same article shows a CPA-letter route at a 30% factor producing a noticeably higher monthly qualifying income from the same deposits.

Same deposits. Very different income. That is why the expense factor matters more than almost any other line in the file.

If the factor feels heavy, ask whether a CPA-prepared expense statement is available in your program. Some lenders accept one, and it can produce a lower factor than the flat default when your real costs are low. The fixed-ratio and accountant-prepared-ratio approach shows up on owner-occupied cash-out files too, at 75% with the accountant-prepared version, but that is the owner-occupied lane, not rentals.

Personal or Business Account? The Sole Proprietor Problem

A sole proprietor has no entity wall. Your client payments and your grocery bill may land in the same account. Underwriters then have to decide which deposits represent business revenue.

Three practical points follow.

One clean account beats several messy ones. If you run revenue through a dedicated business account, the lender applies the expense factor to it and can ignore personal activity. If everything runs through personal checking, the lender may count deposits at a higher percentage, but must still screen out transfers and non-business money.

Mixed accounts take more explanation. Expect a letter explaining deposit sources. Underwriters ask when a deposit looks like a payout from a savings account or a friend’s repayment.

Do not shuffle money before applying. Moving funds between accounts creates deposits the lender must exclude. It also creates questions. A steady pattern of real customer deposits is the best file you can build.

Many investors come in with this exact situation, and the files that go smoothly usually share one trait: the borrower can explain every large deposit in a sentence.

What Underwriting Still Checks

Bank statements replace the income calculation. They do not replace underwriting. Bank statement programs generally skip the tax-return calculation but still review credit, assets, debts, and the property.

Strong credit and larger reserves tend to earn better leverage. Weak ones narrow your options, and some lenders in the network will not touch a thin file.

How Much Can You Borrow on a Rental?

Leverage depends on what the property is. Here is where borrowers get confused, so read this slowly.

On a primary residence purchase or rate-term refinance, select lenders go up to 90% LTV. That figure does not apply to a rental. Primary-residence numbers never describe investment property. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

On an investment-property cash-out, bank statement programs top out around 75% LTV. On an investment purchase, leverage on bank statement documentation varies by lender. Frame your plans around a range, not a single number, and ask each lender what its sheet allows for your credit and loan size.

An owner-occupied cash-out on a primary or second home can reach 80% LTV with a fixed expense ratio. That is a different lane from rentals. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Which Rules Apply: Occupancy Decides

Occupancy changes the legal framework. A loan on a home you live in, including a second home, is a consumer mortgage. A loan on a non-owner-occupied rental, including a short-term rental, is business-purpose.

The CFPB’s Regulation Z § 1026.3 treats credit to acquire, improve, or maintain non-owner-occupied rental property as business-purpose, regardless of unit count. In practice, lenders still underwrite these loans fully, and the standard rental purchase gets the lighter consumer-disclosure treatment.

Watch the edge. A Compliance Alliance advisory warns that not every “investment” property is exempt. A beach house you occupy for a month and rent out the rest of the year can still count as owner-occupied. Confirm occupancy before assuming the rental rules apply.

Bank Statement Loan or DSCR Loan?

The two loans answer different questions. A bank statement loan asks whether you earn enough. A DSCR loan asks whether the property’s rent covers its payment, and qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.

Think of it as choosing your stronger story. If your deposits are big and steady but the rental is a fixer or vacant, bank statements may fit. If the rent comfortably covers the payment and your accounts are tangled, DSCR often wins. Some investors with a growing portfolio use DSCR for the rentals and bank statements for their own home. Lendmire’s complete DSCR loans guide covers that side in depth, including sub-1.00 coverage programs that select lenders offer with adjusted LTV and terms.

The honest approach is to run both and see which one produces better terms.

When the General Rule Breaks

A few edge cases trip people up.

• Volatile or falling income. Averaging smooths a lumpy year, but a clear downward trend in the last few months can hurt or sink the file.
• Big deposit spikes. One large month raises the average. Lenders discount what they cannot document.
• Overdrafts and returned items. Repeated activity signals cash-flow stress.
• Newly self-employed. Programs differ on how long you must have been in business. Ask early.
• Entity vesting. Closing a rental in an LLC depends on program guidelines, and the rules vary by lender.
• Cash-out for the next rental. Lendmire’s piece on whether a super jumbo bank statement cash-out can fund the next rental covers the larger-loan version.

Preparing Your Statements Before You Apply

Preparation starts months before an application. Stop commingling where you can. Keep customer deposits flowing into one account. Avoid large unexplained transfers. Keep your business license and a CPA relationship current. Gather twelve months of statements with every page, including blank ones.

Lendmire’s guide to what qualifies you for a bank statement loan on an investment property goes deeper on the qualification checklist.

Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.

Honest Downsides

The expense factor can cut qualifying income sharply, so your income can look far lower than your gross deposits. Lender availability is also narrower than for standard loans. Not every lender offers these on rentals, which is why comparing across a network helps.

Consumer mortgage licensing for this lane covers 16 states, so availability depends on where you are. Qualification is subject to lender guidelines and this is not a commitment to lend.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage brokerage specializing in DSCR investor loans, helping arrange financing across 41 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.

References

1. Scotsman Guide — Rev Up the Engine for Non-QM Lending

2. HousingWire — How Bank Statement Loans Work

3. CFPB — Regulation Z § 1026.3

4. Compliance Alliance — Regulation Z and Investment Properties