Can a Family Business Co-Owner Use a Bank Statement Loan?

The Quick Read: Usually yes, as long as you can document your ownership share and the business history, because a bank statement loan is reviewed on documented income under the applicable program, subject to lender guidelines, and a co-owner’s income is counted in proportion to the stake they hold.

• Your ownership percentage drives how much business income counts.
• Personal statements skip the ownership math when the business pays you directly.
• Expect to prove two years of self-employment history.
• Minimum ownership for business statements is lender-specific, often around 25%.
• For a pure rental, a DSCR loan may fit better than a bank statement loan.

Plenty of families run a business together. A parent and child split a contracting company. Siblings inherit a restaurant. A spouse co-owns a salon. Each owner then wonders whether bank deposits can stand in for traditional personal-income documentation, since returns often show low income after write-offs. This guide covers how it works, where it breaks down, and when another loan type fits better.

How Does a Bank Statement Loan Treat a Co-Owner?

A bank statement loan reads 12 months of business or personal statements and averages the deposits. Across our wholesale network, most programs use 12 months of statements, and the average becomes your qualifying income after the lender applies an expense factor. A co-owner is treated like any other self-employed borrower, with one extra step: the lender prorates income to your share of the company.

Here is the plain version. Business deposits go in. Non-income items come out, such as transfers, refunds, and loan proceeds. A lender-set expense factor then trims what is left, because not every dollar deposited is profit. Finally, a co-owner’s share applies.

Most programs we place files with expect at least two years of self-employment. Lenders also tend to treat anyone owning 25% or more of a business as self-employed. That 25% mark is a common benchmark, not a universal rule. Some lenders set it higher or lower, and others allow a smaller stake on personal statements only.

How Does Ownership Share Turn Into Qualifying Income?

Ownership share is a multiplier applied after the deposits and expense factor. The usual formula is eligible deposits, divided by the months in the window, reduced by the expense factor, then multiplied by your percentage of the business.

Run it with round, made-up numbers. Say a business shows 100 units of monthly eligible deposits. The lender applies a 50% expense factor, leaving 50. You own 30%, so 15 units count as your income. Those figures are illustrative only, not a program figure, and real expense factors vary by lender and business type.

Three points trip up family owners:

• You cannot pick the expense factor. The lender sets it based on business type, headcount, and use of contractors. Some programs let an accountant-prepared ratio replace the default.
• Deposits are not income. Spikes need invoices or contracts to explain them.
• A smaller stake means a smaller loan. A 50/50 partnership counts half the business income, not all of it.

Personal or Business Statements: Which Should a Co-Owner Use?

If the business pays you a salary or distributions into your own account, personal statements are often cleaner. Those deposits are read as income directly, usually with no expense factor and no ownership proration. Business statements make more sense when you draw from the company irregularly or leave profit inside it.

The shared account is the most common family snag. If the account mixes a spouse’s, parent’s, or sibling’s money with business income, the underwriter may exclude deposits or ask for explanations. Money moving between relatives looks like a transfer, not earnings, and gets screened out. Keeping a separate business account before you apply makes the file far easier to read.

How Do You Prove Family Ownership?

You prove it on paper, and informal family arrangements need the most care. Lenders want to see that you own what you say you own, and that the business has existed for two years.

Family transitions complicate this. Say a parent retired and handed you the shares last year. You may have run the company for a decade, but the official ownership history is short. Lenders usually understand informal family handoffs, yet they still need paper showing your role and the timeline. A CPA letter describing your role often bridges that gap. Gifted or inherited shares should come with the transfer documents.

Co-Owner, Co-Borrower, Co-Signer: Who Is on the Loan?

These three roles get mixed up constantly, and they are not the same.

Your business partner can own half the company and never appear on your mortgage. Only the borrower’s income and credit are underwritten. If you both apply together, each of you documents your own share and each carries liability. Whether a non-occupant co-borrower is allowed depends on the individual program, so ask before assuming either way.

Family money adds one more wrinkle. Gifted down payment funds from relatives are handled under each program’s own rules and need a paper trail. And a family member who works in the business but owns nothing has no ownership share to count. Their pay shows up only in their own accounts.

What Leverage and Terms Apply?

On a primary residence, select lenders in our wholesale network go up to 90% LTV on a purchase or rate-and-term refinance, with the strongest files earning the top of that range. For cash-out on a primary residence, the ceiling is up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio. A second home on cash-out goes up to 75% LTV. Loan sizes run from roughly $125,000 to $3,500,000, and reserves commonly sit around six months of the housing payment. Everything is subject to lender guidelines, credit, and property review.

Owner-occupied files are consumer mortgages, which means standard consumer disclosures apply. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is a business-purpose loan and is handled differently. Consumer mortgage licensing for this lane covers 16 states, so availability depends on where the property sits.

Investment cash-out on bank statement documentation tops out around 75% LTV. Investment purchase leverage varies by lender, so treat any number you see online with caution.

Verification is real, not optional. The CFPB’s compliance guide lists the factors a lender must consider, including the income or assets it relies on, though it does not dictate a particular underwriting model. Non-QM programs are built within that frame, which is why the document list above exists. A Federal Reserve staff note gives background on how those rules shaped the mortgage market.

When Is a Bank Statement Loan the Wrong Tool?

For a pure rental, a DSCR loan often fits better. DSCR stands for debt service coverage ratio. It compares a property’s rent to its full monthly housing obligation, and the loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Your ownership share and personal debts matter far less. DSCR loans are designed for non-owner-occupied investment properties and are business-purpose loans, reviewed differently from a standard owner-occupied mortgage. Our complete DSCR loans guide walks through the mechanics.

Here is the investor logic. A bank statement loan counts your personal debts. Each new mortgage stacks on the same income base, so a family co-owner scaling a rental portfolio can hit a personal ceiling sooner. A prorated share of the business income makes that ceiling lower. With DSCR, the property’s rent does the work instead.

Bank statement documentation still earns its place in a few cases:

• You plan to live in the property.
• Rent coverage is thin but your deposits are strong.
• You want to compare both paths side by side.

On the other side, a BiggerPockets investor thread shows investors calling declining or lumpy deposits a red flag for bank statement underwriting and leaning toward DSCR for that reason. It is an old, anecdotal discussion, so read it as one investor view, not a rule. It matches what we see: shrinking deposits hurt a bank statement file.

On the DSCR side, programs below 1.00 coverage are available through select lenders in the network, but LTV and terms adjust. Lendmire’s piece Can a Business Owner Use Bank Statement Cash-Out to Expand? covers the expansion side of this decision.

Pre-Application Checklist for a Family Co-Owner

1. Gather 12 months of statements for the account you plan to use. 2. Separate business money from family money, if you can. 3. Pull the operating agreement, K-1, or CPA letter showing your percentage. 4. Confirm two years of business history with entity papers or a letter. 5. Note any large deposits and keep invoices ready. 6. List your personal debts, since they count in the ratio. 7. Decide whether the property is a home you will occupy or a rental.

Tax treatment varies; consult a qualified professional.

Key Terms Defined

Bank statement loan: a non-QM mortgage that is reviewed around average bank deposits instead of tax-return income.

Expense factor: the percentage a lender subtracts from business deposits to estimate profit.

Ownership share: your percentage of the business, used to prorate income.

K-1: a tax form showing an owner’s share of a pass-through entity’s income.

Co-borrower: a person who applies with you and shares liability on the loan.

Co-signer: a person who guarantees the debt without necessarily owning the property.

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. Reach the team at 828-256-2183, or explore the quote page. Most families find the answer comes down to paperwork they already own, just organized before the lender asks for it.

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. CFPB – Ability-to-Repay and Qualified Mortgage Small Entity Compliance Guide

2. Federal Reserve – Effects of the Ability-to-Repay and Qualified Mortgage Rules on the Mortgage Market

3. BiggerPockets – DSCR vs. Bank Statement Loan for Self-Employed