The Quick Read: A bank statement lender does not count $100K of monthly deposits as $100K of income. It removes credits that are not business revenue, subtracts an expense ratio for the cost of running the business, adjusts for the share of the business you own, and divides what remains by the number of statement months. The result is the qualifying income that goes into the debt-to-income test.
- Deposits are treated as gross revenue, not take-home pay.
- Transfers between your own accounts, loan proceeds, gifts, refunds and unexplained large deposits usually come out first.
- Through select wholesale programs, business-statement files typically apply a fixed expense ratio of 20%, 40% or 50%, or an accountant-provided ratio.
- Ownership below 100% scales the result down, and business statements typically need at least 25% ownership.
- The final number then has to fit a debt-to-income limit of up to 50%, subject to full underwriting.
What Does “Converting Deposits to Income” Mean?
It means the lender treats your statements the way a tax return treats a business: revenue first, then costs. Your account shows what came in. It does not show which dollars belong to you after payroll, supplies, software, rent and every other expense.
That is why a high-earning founder, physician or contractor can show large deposits and still get a smaller coverage figure than expected. The lender is not penalizing you. It is estimating owner income from revenue.
Bank statement loans exist because traditional personal-income documentation often understates cash flow. Write-offs lower taxable income, sometimes by a lot. A statement program looks at what actually moved through the account instead. These loans qualify on documented income under the applicable program, subject to lender guidelines. 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.
The Four-Step Formula
Across our wholesale network, almost every business-statement calculation follows the same four steps.
1. Total the eligible deposits. Add up the months in the window, usually 12 or 24 consecutive statements, and strip out anything that is not business revenue.
2. Apply the expense ratio. Multiply by one minus the ratio. A 40% ratio keeps 60% of deposits.
3. Apply your ownership share. A 60% owner counts 60% of the result.
4. Divide by the number of months. The answer is monthly qualifying income.
Written as one line: eligible deposits × (1 − expense ratio) × ownership percentage ÷ months in the window.
Document-verification platforms used across non-QM lending are built around the same inputs. Ocrolus’ bank statement income calculator documentation lists an expense factor, a business-ownership percentage, large-deposit thresholds and a business-or-personal account designation.
Worked Example: $100K in Monthly Deposits
Every figure below is a modeled assumption, not market data. Picture a business owner with 100% ownership, a business account and about $100K of deposits in a typical month. The statement review sorts those deposits line by line.
| Deposit type | Amount | Counted? | Why |
|---|---|---|---|
| Client and invoice payments | $85,000 | Yes | Recurring business revenue |
| Transfer from own savings | $7,000 | No | Moving money, not earning it |
| Loan proceeds | $5,000 | No | Borrowed, not earned |
| Vendor refund | $3,000 | No | Returned expense, not revenue |
That month shows $85,000 of eligible deposits, not $100,000. The $15,000 that came out was never income. Run the same math across 12 months and the pattern holds.
Now apply the ratio. With a 50% ratio, $85,000 becomes $42,500 of monthly qualifying income. With a 40% ratio, it becomes $51,000. With a 20% ratio, it becomes $68,000. The deposits did not change. Only the ratio did.
Personal vs. Business Statements
Business statements get the expense ratio. Personal statements usually do not, but they get a harder look at where each deposit came from.
| Factor | Business statements | Personal statements |
|---|---|---|
| Expense ratio | Applied to deposits | Typically not applied |
| Ownership | 25% minimum | Not a business test |
| Main scrutiny | Revenue vs. pass-through money | Proof the deposits are earned income |
| Best fit | Owners with a separate account | Owners who are paid into a personal account |
Moving money from your own business into your personal account is a common case. Through select wholesale programs, transfers from the borrower’s own business into a personal account count at 100%. Expect a letter of explanation tying them back to business revenue.
Lendmire’s piece on how a bank statement lender turns 1099 deposits into qualifying income covers the contractor side of this in more detail.
Who Sets the Expense Ratio?
The lender sets it, not the borrower. The ratio is the lender’s assumption about how much of each deposit dollar goes to running the business.
Across the programs we place files with, the fixed ratios usually follow business type and size:
- A service business with no employees typically gets the lowest flat expense ratio.
- A business with one to five employees typically gets a middle ratio.
- A business with six or more employees, or any product business, typically gets the highest flat ratio.
Two other paths exist. You can use an accountant-provided ratio, which replaces the flat figure when the lender accepts the letter. Or you can use a profit-and-loss method, which is capped at 80%. Ocrolus’ documentation on calculation types describes the same three families: standard factor, CPA or tax-preparer factor, and profit-and-loss.
Programs differ. A few lenders in our network accept a lower accountant ratio than others, and the strictest overlays want tighter support. All of this is subject to full underwriting.
Sensitivity: Same Deposits, Different Answers
Hold the business constant and change one input at a time. These are modeled results, not quotes.
| Eligible deposits | Expense ratio | Ownership | Monthly qualifying income |
|---|---|---|---|
| $100,000 | 20% | 100% | $80,000 |
| $100,000 | 40% | 100% | $60,000 |
| $100,000 | 50% | 100% | $50,000 |
| $85,000 | 40% | 100% | $51,000 |
| $85,000 | 50% | 100% | $42,500 |
| $85,000 | 50% | 60% | $25,500 |
Read it from the top. The gap between a 20% and a 50% ratio on identical deposits is a large swing in monthly qualifying income. The gap from scrubbing $15,000 of non-income deposits is smaller, but it compounds with the ratio. Ownership is the sharpest lever of all, because a 60% owner counts 60% of whatever is left.
Should You Use 12 or 24 Months?
Use 12 months when income is rising and 24 when it is lumpy. A 12-month window shows the current run rate. A 24-month window smooths peaks and valleys.
Say you have one huge month, three times your usual deposits, followed by quiet ones. A 24-month window spreads that spike across more months and softens its effect. A 12-month window that happens to include the spike lifts the average, but an underwriter may question it. Through select wholesale programs, the bank portfolio program uses 12 months. Statements must be consecutive, and transaction histories never substitute.
Seasonal businesses should think about window choice before applying. Many borrowers never check which window helps them more.
From Income to Loan: The Next Test
Qualifying income is not the loan amount. It is the input to a debt-to-income test, which compares your monthly obligations to your monthly income. Through select wholesale programs, debt-to-income can run to 50%, subject to full underwriting. In plain terms, the new housing payment plus your other monthly debts must fit inside that share of your qualifying income.
Credit, reserves and leverage come next. Reserves are the liquid funds held after closing to cover payments. Typical credit floors are 660 on the portfolio non-QM program (up to $6,000,000) and 680 on the bank portfolio program, rising to 700 above the super-jumbo line. Reserves are typically 3 months to $500,000, 6 months to $1,500,000 and 9 months above that, subject to full underwriting.
On a primary residence purchase, leverage steps down as the loan grows. Through select wholesale programs, ceilings run 90% to $1,000,000, 85% to $2,000,000, 80% to $3,000,000 and 75% at the top credit tier to $4,000,000. Second homes and investment property run about five points lower at every size. Above $4,000,000, every file is reviewed case by case before submission. The bank portfolio program carries twelve-month-statement files to $30,000,000 on its own ladder, and every file at that size is likewise reviewed case by case.
Where the General Rule Breaks
The four-step formula holds for most files. These edge cases change it.
- Pass-through revenue. Contractors, resellers and agencies can deposit money that never belonged to the owner. Underwriters look hard here, and flat ratios bite hardest. Lendmire’s piece How a Bank Statement Lender Splits Residual Income From Loan-Out Deposits shows how entertainers and athletes handle it.
- Commingled accounts. Mixing personal and business spending in one account makes classification harder. Separate accounts make the file cleaner.
- Partial ownership. Below 25%, business statements generally do not work on the programs we see.
- Unexplained large deposits. These are excluded or documented. A round-number deposit with no paper trail often comes out.
- Declining trends and overdrafts. Falling deposits or repeated insufficient-funds items can lower the number or trigger more review.
- Asset paths. When deposits are thin, some programs review the file on liquid assets. The asset allowance divides liquid assets by 36, 60 or 84 months. The assets-only path needs liquidity equal to the loan plus closing costs.
How Bank Statement Loans Differ From DSCR
They answer different questions. A bank statement loan is a personal-income product that is reviewed on your deposits and debt-to-income. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Our complete DSCR loans guide walks through that second path. Investors with strong deposits and heavy write-offs sometimes fit one path better than the other, and some fit both.
What the Regulators Expect
Bank statement loans are non-QM, meaning they sit outside the standard qualified-mortgage box. That does not remove the verification step. The CFPB’s small-entity compliance guide says the lender must still consider and verify the income or assets it relies on. This is why deposits get scrubbed and large deposits get sourced.
Pre-Application Checklist
- Pull 12 or 24 consecutive statements, with no missing pages.
- Mark transfers, loan proceeds and refunds before the lender does.
- Write a short explanation for any large or unusual deposit.
- Ask your accountant whether a ratio letter is available and whether the lender will accept it.
- Separate business and personal spending where you can.
- Confirm your ownership percentage in writing.
- Run your own four-step math at 20%, 40% and 50% so nothing surprises you.
Key Terms Defined
Eligible deposits: Deposits a lender counts as business revenue after removing transfers, loan proceeds, gifts and refunds.
Expense ratio: The share of deposits the lender assumes goes to operating costs, subtracted before income is counted.
Qualifying income: The monthly figure left after the lender cleans deposits, applies the ratio, adjusts for ownership and averages by month.
Debt-to-income (DTI): Your monthly debt obligations divided by your monthly qualifying income.
Non-QM: A mortgage that falls outside the standard qualified-mortgage rules and uses alternative income documentation.
Reserves: Liquid funds you hold after closing, counted in months of payments.
Frequently Asked Questions
Do I need traditional personal-income documentation for a bank statement loan?
Through the programs in our network, qualification runs on 12 or 24 months of bank statements, not traditional personal-income documentation. The lender may still ask for an accountant letter, a profit-and-loss statement or proof of ownership. Requirements vary by program and are subject to full underwriting.
Do all $100K of monthly deposits count?
No. Transfers between your own accounts, loan proceeds, gifts, refunds and unexplained large deposits usually come out first. What remains is then reduced by the expense ratio and your ownership share.
Can my accountant’s letter change the result?
It can. An accountant-provided ratio can replace the fixed 20%, 40% or 50% ratio when the program accepts it. The lender decides whether the letter is acceptable and whether the ratio is reasonable for your business.
Is 12 or 24 months better for lumpy income?
Twenty-four months tends to help when income swings a lot, because one strong month carries less weight. Twelve months tends to help when income has risen steadily. Some programs fix the window, so check before choosing.
Do transfers from my business to my personal account count?
Yes, through select wholesale programs. Transfers from the borrower’s own business into a personal account count at 100%, usually with a letter of explanation. Transfers between your own personal accounts do not count as income.
Next Step
If you are financing a high-balance property on business or personal bank statements and want to see how the numbers work, Lendmire can help you compare super jumbo bank statement loan options based on your deposits, the property, credit profile, leverage and your goals. Lendmire is a broker that arranges consumer mortgage financing in the 16 states where it is licensed, and nothing here is a commitment to lend.
Lendmire’s self-employed mortgages page presents both super jumbo programs, bank statement and DSCR, side by side.
About Lendmire
Lendmire is a DSCR-focused mortgage brokerage, NMLS# 2371349, placing investor loans across 41 markets, including Washington, D.C. DSCR eligibility is generally reviewed by the lender around a property’s rental income rather than personal income documentation, which fits LLC-held rentals, self-employed investors, and portfolios scaling past conventional financed-property limits. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
Get Started
Ready to find the right loan for you?
In about 30 seconds you can review financing options available for your home or investment property. No commitment required.
Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. Ocrolus Bank Statement Income Calculator documentation
2. Ocrolus Frequently Asked Questions
3. CFPB ATR/QM Small Entity Compliance Guide
This article is part of Lendmire’s super jumbo bank statement loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Blend Assets and Deposits on a Super Jumbo Bank Statement Loan · How to Pick Bank Statement or DSCR After Selling Your Company · Bank Statement Loan vs Asset Depletion Loan for Physicians
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.