Bank statement loans let self-employed borrowers use their deposit history to qualify for a mortgage instead of tax returns. But there is a decision most borrowers do not know they have: personal bank statements or business bank statements. The choice matters more than most lenders explain. The expense factor on business statements can cut qualifying income in half — while personal statements carry no deduction at all.
Dynamic Funding Solutions reviews both options for every business owner file and recommends the path that produces higher qualifying income. See the full bank statement loan program overview for program fundamentals.
The Core Difference: The Expense Factor
The expense factor is the income deduction lenders apply to business bank statement deposits to account for operating costs. Personal bank statements carry no expense factor — the full deposit average counts as qualifying income.
Personal Bank Statements — No Expense Factor
Personal bank statement deposits are counted at 100% for income qualification. If a borrower deposits an average of $18,000 per month into a personal account over 12 months, qualifying income is $18,000 per month — no reduction applied. This makes personal statements the higher-qualifying option for any business owner who transfers net profit to a personal account.
Business Bank Statements — The 50% Default
Business bank statement programs apply an expense factor to account for the operating costs embedded in business deposits. The default expense factor is 50%. That means $20,000 in average monthly business deposits produces $10,000 in qualifying income — not $20,000.
The 50% default does not reflect actual business expenses in most cases. A technology contractor with minimal overhead might have actual expenses of 20%. A restaurant owner with food, labor, and occupancy costs might run at 60%. The 50% default is a conservative underwriting floor — not a business analysis.
Why the Expense Factor Exists
Conventional lenders — underwriting to Fannie Mae and Freddie Mac guidelines — use tax returns because they already net out business expenses. A $180,000 Schedule C shows $180,000 in net business income after all expenses. A business bank statement showing $360,000 in annual deposits might represent $180,000 in net income after 50% in expenses — or more or less depending on the actual business. The expense factor is the non-QM lender’s substitute for a full business analysis.
When Personal Bank Statements Win
Business owners who transfer net profit from a business account into a personal account typically qualify at higher income using personal bank statements. The personal deposit carries no deduction — it is already net profit after business expenses.
The Owner’s Draw Scenario
A Philadelphia LLC owner generates $25,000 per month in business deposits and transfers $18,000 per month to a personal account after paying business expenses. Using business bank statements with a 50% expense factor, qualifying income is $12,500 per month. Using personal bank statements, qualifying income is $18,000 per month — a $66,000 difference in annual qualifying income. The personal statement path clearly wins.
Salary-Paying Business Owners
S-Corp owners who pay themselves a W-2 salary from the business may use the combination of W-2 income plus personal bank statement deposits to qualify. The W-2 salary runs through conventional income verification; personal deposits from distributions or draws are verified separately. DFS structures the income calculation to capture the full picture.
Sole Proprietors Who Deposit Business Income Personally
Sole proprietors often do not maintain a separate business account — all income flows directly to personal accounts. These borrowers have no choice and no disadvantage: personal bank statements are the only option, and they carry no expense factor. Qualifying income is the full deposit average.
When Business Bank Statements Win
Business bank statements produce higher qualifying income when the business generates large deposits that are not transferred to a personal account — particularly when a CPA letter documents actual expenses below the 50% default.
Business Income That Never Touches a Personal Account
Some business owners reinvest income into the business and draw a minimal salary. Monthly business deposits might total $40,000 while personal deposits total $8,000. On personal statements, qualifying income is $8,000 per month. On business statements at 50% expense factor, qualifying income is $20,000 per month. Business statements win — by a significant margin.
S-Corp and C-Corp Owners with Low Personal Draw
S-Corp and C-Corp owners who retain earnings in the business rather than distributing them personally will see minimal personal bank statement deposits. Business bank statements — especially with a CPA letter — may be the only path to documenting the full income the business generates.
Using a CPA Letter to Reduce the Expense Factor
A CPA letter is the most powerful tool available to business bank statement borrowers. When a licensed accountant certifies that actual business expenses are below 50% of gross deposits, lenders may substitute the documented ratio for the default 50%. A borrower with actual expenses of 35% can increase qualifying income from $10,000 per month to $13,000 per month on $20,000 in monthly deposits — a $36,000 improvement in annual qualifying income.
The CPA Letter Strategy
The CPA letter is an optional document in most non-QM bank statement programs — but for business owners with low actual expenses, it is one of the highest-leverage steps in the pre-qualification process.
What a CPA Letter Does
A CPA letter is a signed statement from a Certified Public Accountant documenting the actual expense-to-revenue ratio of a business. The lender accepts the certified ratio in place of the default 50% expense factor. The borrower qualifies at a higher income level — sometimes significantly higher — without changing the actual deposits or any other program parameter.
How It Reduces the Expense Factor Below 50%
If actual business expenses are 35% of gross deposits, the CPA certifies that ratio. The lender applies 35% instead of 50%. On $20,000 in monthly deposits:
- Without CPA letter: $20,000 × 50% expense factor = $10,000 qualifying income
- With CPA letter (35% actual expenses): $20,000 × 35% expense factor = $13,000 qualifying income
- Annual difference: $36,000 more qualifying income
When to Get One and What It Should Include
A CPA letter is worth pursuing when actual business operating expenses are well below 50% — technology contractors, consultants, real estate agents, and professional service providers with low overhead are typical candidates. The letter should include the CPA’s name, license number, business name, statement of actual expense ratio, and the period covered. DFS can specify what lenders require in the letter format.
Making the Right Choice for Your Business Structure
LLC Owners
LLC owners have the most flexibility. Single-member LLC owners who deposit business income to a personal account use personal statements — no expense factor. Multi-member LLC owners or those who keep income in the business account use business statements, ideally with a CPA letter if actual expenses are below 50%.
S-Corp Operators
S-Corp owners typically pay themselves a W-2 salary. If the salary is below the qualifying threshold, business bank statements plus a CPA letter may be required to document full income. The business owner home loan Pennsylvania page covers S-Corp qualification in detail.
Sole Proprietors
Sole proprietors default to personal bank statements — most run Schedule C businesses without separate business accounts. No expense factor applies. The full deposit average qualifies as income.
Frequently Asked Questions
Should I use personal or business bank statements for a mortgage?
It depends on how you pay yourself. If you transfer net profit from a business account to a personal account, personal bank statements typically produce higher qualifying income — personal deposits carry no expense factor deduction. If most income stays in the business account, business bank statements may be the better path, especially if a CPA letter can reduce the expense factor below 50%.
What is the expense factor on a business bank statement loan?
The expense factor is the percentage deducted from business deposits to account for business operating costs. Most programs default to 50% — meaning $20,000 in monthly business deposits produces $10,000 in qualifying income. A CPA-prepared letter documenting actual expenses below 50% can reduce the factor and increase qualifying income.
Do personal bank statements have an expense factor?
No. Personal bank statement deposits are counted at 100% for income qualification purposes — there is no expense factor deduction. This is why business owners who draw a salary or owner’s distribution into a personal account often qualify at significantly higher income using personal statements.
What is a CPA letter for a bank statement loan?
A CPA letter is a signed statement from a Certified Public Accountant documenting the actual expense ratio of a business. If the actual expense ratio is 35% — not the default 50% — the lender may use the documented ratio to calculate qualifying income. On $20,000 per month in business deposits, reducing the expense factor from 50% to 35% increases qualifying income from $10,000 to $13,000 per month.
Can an LLC owner use personal bank statements for a mortgage?
Yes. LLC owners who transfer net profit to a personal bank account can use personal bank statements for mortgage qualification. The loan is always in the borrower’s personal name — the LLC is the business entity, not the borrower. Personal deposits from owner’s draws or distributions qualify at full face value with no expense factor.
Get a Free Income Calculation Review
Not sure whether personal or business bank statements produce higher qualifying income for your specific deposit pattern? Lena Polnet, NMLS #17225, will run both calculations before you apply — so you know exactly what you qualify for before any credit is pulled.
- Phone: (215) 364-7171
- Schedule a free 15-minute strategy call: calendly.com/lena-polnet
See also: 12-month vs 24-month bank statement loan — choosing the right statement period for your deposit history. Self-employed mortgage Pennsylvania — bank statement program overview for PA freelancers and contractors. 1099 contractor mortgage Pennsylvania — qualify at 90–100% of gross 1099 income. Bank statement loan Florida — for Florida self-employed borrowers and investors.