
The Quick Read: An expense factor is the share of your business deposits a lender subtracts as the cost of running the business before counting the rest as income, and the program sets that percentage, not you; where a program accepts only the summary page of each statement, that lighter paper set is often paired with the flat standard factor rather than a reduced one, though each program sheet controls.
- The factor is a lender-program choice. It is not a number you pick, and no single formula applies everywhere.
- Business statements take a factor. Personal statements are usually read much closer to gross deposits.
- A first-page option submits less detail, so the lender has less to work with when screening deposits.
- A lower factor generally needs third-party support, such as an accountant’s letter, and the lender decides whether to accept it.
- Credit, reserves, the property and your debts still get reviewed in full.
What Is an Expense Factor, and Who Sets It?
The expense factor is a haircut on business deposits. A business account collects gross revenue, not profit. The lender needs a take-home figure, so it assumes part of every deposit went to costs.
What your deposits qualify you for.
Alt-doc programs read 12 months of business or personal bank deposits instead of tax returns. Enter your average monthly deposits and see the income a lender would credit you.
The expense factor is set by the lender from your business type and profit-and-loss statement; it is not a number you choose. This widget quotes no rate and no payment.
Program parameters shown update from Lendmire’s centralized guideline source.
Estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. Deposit average, expense factor, and housing ratio are editable assumptions; the expense factor a lender applies is set from your business type and documentation. No interest rate or monthly payment is quoted here. Purchase capacity is a simplified illustration and does not account for taxes, insurance, HOA dues, or other debts. Alt-doc income documentation is available on consumer mortgages in the states where Lendmire is licensed for consumer lending; actual terms vary by lender, borrower, and property.
Lenders set that assumption, and it varies by program. Across Lendmire’s wholesale network, most programs apply a flat percentage to business-account deposits by default. A few will use a lower percentage when a third party backs it up. None of them let the borrower simply name the number.
Personal statements work differently. Personal deposits are usually not treated as gross revenue, so most programs count them close to face value after removing transfers and non-income credits. Business and personal statements are two different calculations, and they should not be compared as if they were the same.
Any program is also meant to qualify you on documented income under the applicable program, subject to lender guidelines. The factor is just the step that turns raw deposits into that documented figure.
How the Calculation Runs, Step by Step
Here is the sequence most programs follow:
1. Choose the account type. Business statements get a factor. The program sets it. Personal statements are read near gross.
2. Screen the deposits. Transfers between your own accounts, loan proceeds, refunds and other non-income credits come out.
3. Apply the formula. Eligible deposits, times your ownership share, times one minus the factor, divided by the months in the window.
4. Choose the factor method. Either the lender’s flat percentage, or a figure supported by a third-party expense statement. That support usually means a CPA, enrolled agent or tax preparer.
5. Feed the result into the file. The qualifying income then goes into the debt-to-income review alongside everything else.
Step three is where files get quietly reshaped. Two borrowers with the same total deposits can end up with very different qualifying income if one has large transfers or one-time credits.
What “First-Page Statements” Actually Means
A first-page option means the lender reads only the summary page of each statement. That page shows opening and closing balances and total deposits and withdrawals for the period. It does not show the individual transactions.
Most lenders ask for every page, including pages that look blank. So the two ideas look like they contradict each other. They do not. They are different documentation paths, and the program decides which one is on the menu.
Some programs offer a summary-page option, and what it allows depends on the program. Do not assume one lender’s rules apply to another’s. Ask for the program sheet before you gather documents.
How the Factor Works Under First-Page Documentation
The honest answer is that the factor is set by the program, and the first-page option is a program feature. Nothing in the market is standardized here, so no outside number should be treated as the rule for your file.
Here is how this tends to play out, and it is reasoning rather than a published rule. A summary page shows totals. It cannot show which deposits were transfers or which were revenue. An underwriter who cannot screen deposits line by line has little basis for accepting a reduced factor. So the natural pairing is the flat standard factor, not a CPA-reduced one. Treat that as an inference. Your program sheet is what counts.
Three practical consequences follow:
- Less supporting detail means less room to argue. A lower factor depends on evidence, and a summary page offers little.
- Deposit screening gets coarser. Programs that accept summary pages handle transfers and unusual credits in their own way, which can include added questions.
- You may be able to choose. An investor with clean books and a good accountant may qualify for more income by sending full statements plus a CPA letter.
| Documentation path | Pages submitted | How the factor is set | Best fit |
|---|---|---|---|
| Full statements, flat factor | Every page | Program’s standard figure | Simple deposits, no CPA letter |
| Full statements, CPA letter | Every page plus letter | Supported figure, lender decides | Lean books, well-documented costs |
| First-page option | Summary page only | Set by the program | Lighter paperwork, clean accounts |
All values in that table are set by the lender program. For more on the first two paths, see Lendmire’s side-by-side of default factor, CPA letter and first-page-only statements.
A Worked Example With Indexed Figures
These figures are a modeled illustration, not a program quote. They use an index instead of dollars so the logic stays visible.
Say a borrower owns 100% of a business with eligible deposits that index to 100 per month after transfers and non-income credits come out.
- Path A, full statements, flat factor: assume the program removes half. Qualifying income indexes to 50.
- Path B, full statements plus an accountant-supported factor: assume a lender accepts a factor that removes about a third. Qualifying income indexes to roughly 67.
- Path C, first-page option: if the program pairs it with the same flat factor as Path A, the result lands near 50.
The gap between A and B is the whole case for a CPA letter. It is a large jump from a single document. The first-page path trades detail for lighter paperwork, so for a borrower who qualifies comfortably either way, it can make sense. A borrower who is close to the line on debt-to-income usually should not give up the option of a lower factor.
Why There Is No Federal Expense Factor Rule
The percentage is a lender and investor guideline choice. Nothing in federal rules sets it. What federal rules do require, for owner-occupied consumer loans, is that the lender verify the information it relies on using reasonably reliable third-party records. The CFPB’s ability-to-repay compliance guide defines those records as ones prepared by someone other than the consumer, the creditor or the broker, and it uses a profit-and-loss statement reviewed by an accountant as an example of a reliable one.
That explains why a CPA letter carries weight with a lender. It also explains why a lender will not take your word for a lower factor. The same framework has the creditor weigh at least eight underwriting factors, as NCUA Supervisory Letter 14-01 confirms. Records need not be kept on paper, but the creditor must be able to reproduce them accurately, according to a Butler Snow client alert. Keep your own files organized, because the lender must be able to show what it reviewed.
Where the General Rule Breaks
A lower factor with a CPA letter. The lender decides whether to accept it. A reduced figure must also fit the deposits. If a profit-and-loss statement shows revenue that the deposits do not support, the support falls apart.
Profit-and-loss-only products. These are a different program. The P&L is the income proof itself, not just backup for a factor.
Commingled accounts. Money moving in circles between personal and business accounts can trigger extra explanations or a denial. Clean separation helps, and a first-page file gives the underwriter even less ability to trace it.
Occupancy changes the rules. An owner-occupied loan on a primary residence or second home is a consumer mortgage, and TRID disclosure rules apply. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is a business-purpose loan and is exempt from TRID. Know which one your property is before you compare programs.
Leverage and Loan Parameters on Bank Statement Files
These figures are typical ranges from select lenders in the network and are subject to lender guidelines. On a primary residence purchase or rate-term refinance, leverage can reach 90% LTV, and stronger files earn the top of that range. On an owner-occupied cash-out, whether primary residence or second home, the ceiling is up to 80% LTV with a fixed expense ratio, and 75% with an accountant-prepared ratio. On an investment-property cash-out, the ceiling is around 75% LTV.
Investment purchase leverage on bank statement documentation varies by lender, so there is no single figure to quote. Loan amounts commonly run from $125,000 to $3,500,000, and reserves are commonly about six months of the housing payment. An asset-depletion alternative, which qualifies from liquid assets, reaches about 80% LTV on a primary residence.
Bank Statements or DSCR for an Investor?
Many self-employed investors can choose either path. A bank statement file is reviewed around documented income under the applicable program. A DSCR file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. For a rental purchase, the second path often fits better because it does not turn on how your deposits average out.
There is a second difference. On bank statement files, each financed property adds a payment to your debt-to-income. DSCR is measured property by property. An investor adding a fourth or fifth rental can run into that wall. The complete DSCR loans guide walks through how that property-level test works.
A sole proprietor has no separate business entity, so the business and the owner are effectively one and the same.
Who fits the first-page option? Borrowers with simple, steady deposits, no unusual credits, and no plan to argue for a lower factor. Who should send everything? Borrowers whose margins are lean, whose accountant can document costs, or whose deposits include transfers that need explaining.
What Does Not Change
The documentation path changes the income math. It does not change the rest of the file. Credit, assets, reserves, the property, and debt-to-income all get reviewed on every path. Large deposits still need a source. A thin first page does not lighten any of that.
Tax treatment varies; consult a qualified professional before relying on any deduction or write-off tied to your business expenses.
Common Misconceptions
Bank statement means no documentation. It is a different documentation path. The lender still verifies income under the program, subject to lender guidelines.
I can pick my expense factor. The lender sets it. A CPA letter supports a lower figure, and the lender decides whether to accept it.
Every deposit counts. Transfers, loan proceeds, refunds and non-income credits are excluded.
Gross deposits equal income. Business deposits are gross revenue, so the lender backs out an assumed cost of doing business.
A first page is the same math with less paper. That depends on the program. Some programs treat it as a separate path with its own factor method.
First page means less scrutiny. The file still gets reviewed in full. The underwriter just has fewer documents to review.
Questions to Ask Before You Apply
- Does the program accept summary pages, and does it do so for both business and personal statements?
- Is the factor flat on that path, or can a CPA letter still reduce it?
- Can I combine a first-page option with an accountant letter?
- How will the lender treat transfers and large one-time deposits if it cannot see transactions?
- What is the statement window, and how many months does it average?
- How does my ownership share affect the result?
- What reserves and credit profile does the program want?
Gather these before you apply: statements for the full window, a list of any transfers between your accounts, and your accountant’s contact. Bring the program sheet along if your loan officer shares it.
Key Terms Defined
Expense factor: the percentage of business deposits a lender subtracts as the cost of operating the business.
Eligible deposits: deposits that count toward income after transfers, loan proceeds and other non-income credits are removed.
First-page-only documentation: a program option that accepts just the summary page of each monthly statement, not every page.
Accountant letter: a statement from a CPA, enrolled agent or tax preparer that supports a lower expense percentage.
Qualifying income: the monthly income figure the lender uses after applying the factor, which then feeds the debt-to-income review.
Debt-to-income (DTI): your monthly debt payments compared with your qualifying monthly income.
Frequently Asked Questions
Does using first-page statements change the expense factor?
It can, depending on the program. Some programs pair the summary-page option with the flat standard factor and do not allow a reduced one. Others treat it differently. Only the program sheet answers this for your file.
Do lenders still want every page of my statements?
Most do. The usual reason is that every page confirms nothing is missing and lets the underwriter trace deposits. A summary-page option is the exception, and it exists only where a program offers it.
Can I lower my expense factor with a CPA letter?
Often, yes, but the lender decides whether to accept it. The letter has to come from a qualified third party, and your deposits have to support it. Ask whether the letter works with your documentation path.
Do personal bank statements get an expense factor?
Usually not in the same way. Personal statements are generally read close to gross deposits after transfers and non-income credits come out. Business statements take the factor.
Is a bank statement loan the right choice for a rental purchase?
It depends on the property and the program. Investment purchase leverage on bank statement documentation varies by lender. Many investors compare it with DSCR, which qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.
Next Step
Reach the team at 828-256-2183 or request a quote.
Whether you send one page or all of them, the cleanest bank statement files are the ones where every deposit already has an explanation attached.
For current guidelines and terms, see Lendmire’s bank statement loan programs page.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage with consumer lending licenses in 16 states. Bank statement, P&L-only, 1099-only and asset-based mortgages are arranged through wholesale lending partners for borrowers whose tax returns understate their income, and each application is reviewed individually by the lender. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. CFPB ATR/QM Small Entity Compliance Guide
2. NCUA Supervisory Letter 14-01
3. Butler Snow, CFPB Small Entity Compliance Guide summary
This article is part of Lendmire’s bank statement loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Can You Use a P&L Instead of Bank Statements for a Jumbo Loan? · How Super Jumbo Bank Statement Loan Valuation Checks Work on a Tower Condo · How a Bank Statement Jumbo Loan Works in Bellevue
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.