The Quick Read: Lenders run two separate tests on this loan. The first builds qualifying income from your deposits. The second sizes the cash-out against the property’s appraised value, occupancy and leverage cap. The renovation or ADU is only the use of the money. It does not help you qualify, and it does not change the income math.
- Income comes from 12 months of personal or business statements, with lender-specific expense factors applied.
- The cash-out amount depends on the as-is appraisal, not on your project budget or the value after the build.
- On a primary residence, cash-out typically reaches up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio.
- On a second home, cash-out typically tops out around 75% LTV. On an investment property it is also around 75%.
- Whichever test is tighter, income or equity, sets your loan size.
Picture a self-employed contractor with a paid-down home and a plan to add a backyard unit. Her tax returns show modest income after write-offs. Her deposits tell a stronger story. That gap is exactly why bank statement lending exists, and why the underwriting deserves a close look before anyone orders plans.
What Is a Bank Statement Cash-Out Refinance, and Who Uses It for a Renovation or ADU?
A bank statement cash-out refinance replaces your current mortgage with a larger one and pays you the difference. The loan is reviewed on documented income under the applicable program, subject to lender guidelines. Tax returns are not the income measure. Deposit history is.
It is a non-QM product. Scotsman Guide, the non-QM trade publication, describes these loans as a way for self-employed borrowers to qualify on actual income rather than the tax-return figure, and as a workaround to strict agency underwriting. “Non-QM” does not mean loose. Every file is reviewed by a person, and the review is mostly manual.
The borrowers who use this for a renovation or ADU tend to look alike. They own a business, work in a trade, earn 1099 income or run an LLC. Write-offs shrink their taxable income. They have equity in a home. Across Lendmire’s wholesale network, this is the profile that fits best. A W-2 borrower with clean tax returns usually has cheaper options.
Lendmire is a mortgage broker. It shops these files across select wholesale lenders and matches the scenario to the program. The lenders that write this loan, and the terms they offer, depend on your property type, credit profile, leverage need and documentation.
Key Terms Defined
Bank statement loan: A mortgage that qualifies the borrower on average monthly deposits instead of tax-return income.
Cash-out refinance: A new mortgage larger than the old one, with the difference paid to the borrower in a lump sum.
Expense factor: The share of business deposits a lender treats as operating costs, so only the remainder counts as income.
LTV: Loan-to-value, the new loan balance divided by the appraised value of the property.
DTI: Debt-to-income, your monthly obligations divided by qualifying monthly income.
Seasoning: The length of time you have owned the property or held the current loan before a cash-out is allowed.
As-is value: What an appraiser says the property is worth today, in its current condition.
The Underwriting Sequence at a Glance
Underwriting moves in a set order. Each step feeds the next.
| Step | What the lender tests | What you do |
|---|---|---|
| 1. Statement set | 12 months, personal or business | Choose the cleaner account |
| 2. Deposit review | Remove non-income credits | Document odd deposits |
| 3. Averaging | Eligible deposits divided by months | Keep deposits regular |
| 4. Expense factor | Share treated as business cost | Know which method applies |
| 5. DTI | New obligations vs. income | Pay down small debts |
| 6. Collateral | As-is appraisal, occupancy, LTV cap | Match request to the cap |
| 7. Credit and reserves | Score, history, about 6 months reserves | Show liquid assets |
The sections below walk through each step.
How Do Lenders Handle the Statements and the Deposits?
Lenders start with 12 months of statements across our network programs. Trade coverage notes a broader market range of 12 to 24 months, per Scotsman Guide. You pick personal or business statements, and the choice matters.
Next comes the scrub. The underwriter strips out anything that is not earned income:
- Transfers between your own accounts.
- Loan proceeds and refunds.
- One-time deposits that have no business source.
This step matters more on a renovation file than on most. If you have been paying a contractor out of a business account, or if earlier loan funds landed there, the underwriter must not count them as income. Expect questions about large deposits, overdrafts and anything that looks altered. Keep a short written explanation ready for each unusual credit.
Commingling hurts too. When personal and business deposits mix in one account, the lender has to guess which dollars are revenue. Thin or irregular deposits also lower the average. If one account is cleaner, that is usually the one to submit.
How Is Qualifying Income Calculated?
After the scrub, the lender divides eligible deposits by the number of months. On business accounts, it then applies an expense factor. The result is your qualifying monthly income.
There are two common ways to set that factor:
- Fixed expense ratio. The lender applies a set percentage to deposits. Trade coverage gives 50% as a typical example, though programs differ. Never assume 50% applies to your file.
- Accountant-prepared ratio. A CPA or tax professional documents your real expense level. This can help when your actual costs are low. On owner-occupied cash-out, the leverage ceiling is lower on this route: up to 75% LTV on a primary residence, against up to 80% with a fixed ratio. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Flexibility exists here. A landscaper and a consultant do not spend the same share of revenue on expenses. Programs vary on whether and how they allow alternatives, which is where a broker’s view across many lenders helps.
If you own only part of the business, the lender adjusts for your ownership share. Deposits flow into the whole company, but only your portion counts as your income.
How Does the DTI Test Work?
The lender adds up your proposed housing obligation and your other monthly debts. It divides the total by qualifying income. That is your DTI. Some non-QM lenders will go as high as 50%, per Scotsman Guide. Treat that as a market observation, not a promise for your file.
Here is a detail that catches renovation borrowers. The new payment is built on the larger cash-out balance. The cash you take for the ADU raises the loan, and the loan raises the payment. So a bigger project does not just cost more. It pushes DTI up. If your income is already near the limit, a smaller cash-out may be the difference between a clean file and a declined one.
Cash-out proceeds never count as income. Qualifying happens before the money exists.
How Do Appraisal, Occupancy and Leverage Set the Loan Size?
The collateral test is separate from the income test. The appraisal, the occupancy type and the leverage cap decide the maximum loan. Your statements do not.
Across the network, the typical ceilings look like this:
| Occupancy | Cash-out ceiling (typical) |
|---|---|
| Primary residence, fixed expense ratio | Up to 80% LTV |
| Primary residence, accountant-prepared ratio | Up to 75% LTV |
| Second home | Up to 75% LTV |
| Investment property | Around 75% LTV |
All of these are subject to lender guidelines, loan size and credit. Loan amounts typically run from $125,000 to $3,500,000. On primary-residence purchases and rate-term refinances, leverage can reach up to 90% LTV through select lenders, but that is not the cash-out ceiling and should not be confused with it.
What Does the Appraiser Value for a Project Not Yet Built?
The appraiser values the home as it stands. A standard cash-out is sized on that as-is value. Your own estimate of the value after the ADU is not an underwriting input.
Agency renovation products such as HomeStyle or FHA 203(k) lend against as-completed value, but those are agency or government products and a different animal. A standard bank statement cash-out does not credit the ADU before it exists.
Research from the UC Berkeley Terner Center notes that borrowing against an unbuilt ADU’s future value is possible in principle, but did not appear to happen in practice. It also found that appraisers struggle to find comparable sales for ADUs. That second finding matters after the build too. Once the unit is finished, an improvement may support a higher appraised value, depending on comps and underwriter review. Do not plan around a specific lift.
The practical effect: your cash-out is limited by today’s equity. If the project costs more than that equity allows, you need another source for the gap.
What About Credit, Reserves and Seasoning?
Credit and reserves are the last two gates. Lenders review your score, your payment history and the strength of your liquid assets. Reserves commonly run around 6 months of the housing payment. Those funds should be documented and, ideally, separate from the money you plan to spend on the build.
Seasoning rules govern how soon you can pull cash out after buying or after a prior refinance. They are lender-specific. Documented improvements can sometimes count toward cost basis at certain lenders, but that varies, and nothing here should be read as a guarantee.
How Does the Renovation or ADU Actually Enter the File?
It enters as a use of proceeds. That is all. Most lenders in this lane do not require a draw schedule, because the loan pays out as a lump sum at closing.
Still, expect to hear about the project. Underwriters sometimes ask for a short scope of work. Contractor bids and permits may come up, and requirements differ by lender. Having them ready costs little and can keep the file moving smoothly.
Rental income from the ADU is a separate question. A new unit has no rent history. Whether any projected rent counts toward qualifying is lender-specific. Many files simply ignore it and qualify on deposits alone. If the ADU’s rent is central to your plan, a different structure may fit better, which brings us to the comparison below.
Occupancy Decides the Disclosure Regime
Your occupancy type changes the paperwork. A cash-out on an owner-occupied home, whether primary or second, 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 business-purpose and exempt from TRID. Those are different files with different rules, and they should not be mixed.
Business-purpose treatment is well established. The CFPB’s TILA summary lists the exemption for credit extended primarily for business purposes, and the agency’s ability-to-repay rule treats investment-purpose loans as outside its scope. Business-purpose is not a free pass, though, and lenders still apply their own standards. Short-term rental rules can vary by city, county, HOA and property type, so investors should confirm local rules before relying on projected rental income.
Consumer mortgage availability for these programs covers 16 states.
A Worked Example
Run the numbers on a hypothetical self-employed homeowner. These inputs are modeled assumptions, not market data.
| Step | Result |
|---|---|
| Statement set | 12 months of business statements |
| After scrubbing transfers and refunds | Eligible deposits remain |
| Averaged and reduced by a fixed expense factor | Qualifying monthly income |
| DTI test with the larger payment | Passes, with modest cushion |
| Collateral | Primary residence, requested leverage under the 80% cash-out cap |
| Reserves | About 6 months documented |
In this scenario, income passes first. The leverage cap then decides how much cash is available. If the same borrower asked for a cash-out above the cap, the loan would be cut back regardless of how strong the deposits looked. If the deposits were thinner, income would bind first. The tighter test always wins.
Bank Statement Cash-Out vs. Other Ways to Fund the Project
The right choice depends on the borrower, the property and the plan. Here is how the main options compare for this use.
| Option | Income basis | Value basis | Fit |
|---|---|---|---|
| Bank statement cash-out | Deposit averages | As-is | Self-employed with equity |
| HELOC or home equity loan | Varies by lender | As-is | Existing first mortgage worth keeping |
| Renovation or construction loan | Usually tax returns | As-completed | Builds needing staged draws |
| DSCR cash-out | Property rent vs. debt | As-is | Non-owner-occupied rentals |
A few flip points. If your current first mortgage is one you would hate to lose, a second-lien product may serve you better than a full refinance. If the build needs staged draws, or if you want the lender to credit completed value, a renovation product fits the project better, though it usually wants tax-return income. If the property is a non-owner-occupied rental and the rent carries the payment, DSCR qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Bank statements instead measure your personal cash flow. Lendmire’s complete DSCR loans guide covers that path.
One honest benchmark on how owners really pay. In a survey of about 800 California homeowners, nearly two-thirds used liquid assets and 43% borrowed against home value, per the California YIMBY summary of the Terner and USC research. Only 6.3% used renovation loans. That is California-only data, not a national benchmark. It does show that most owners blend sources, and the Terner Center’s ADU brief says few loan products exist for ADU financing.
When the Numbers Don’t Work
A file can fall short in four places: income, leverage, credit or reserves. Each has a lever.
- Income too low. Try the other account type, or a different expense method if the program allows one. An accountant-prepared ratio may help where real costs run low, though it lowers the owner-occupied leverage ceiling.
- Appraisal low or leverage capped. Request a smaller cash-out. Fund the remainder from savings.
- DTI too high. Pay off small installment debts before applying. A smaller loan also lowers the payment.
- Reserves thin. Document more liquid assets, or consider an asset-depletion approach, which can reach about 80% LTV on a primary residence. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
If every neighborhood and property you try fails the same test, change the structure, not just the paperwork.
Common Misconceptions
“Bank statements mean no documentation.” That’s not accurate: the paperwork is different, and review is heavy. Underwriters read the statements line by line.
“The expense factor is always 50%.” Fifty percent is an example. Factors vary by program and by business, and alternatives exist.
“The ADU’s future value sizes the cash-out.” A standard cash-out uses the as-is appraisal.
“Business purpose means no rules.” A Hunton law-firm paper warns that business purpose does not mean compliance-exempt.
“Non-QM means subprime.” Not. These are fully underwritten loans with credit and reserve requirements. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
Document Checklist
- Twelve months of statements for the chosen account.
- A P&L or accountant letter, if that route applies.
- Written explanations for large or unusual deposits.
- Deed and note date, for seasoning.
- Contractor bids, scope of work and permits, in case they are requested.
- Recent mortgage statement and homeowner’s insurance information.
- Proof of reserves.
Frequently Asked Questions
Can I use a bank statement cash-out to build an ADU?
Generally yes, because construction is an ordinary use of proceeds. The lender reviews your file on your deposits and sizes the loan on the as-is appraisal. The ADU does not need to exist yet, and it does not raise the loan amount. Terms depend on lender guidelines.
Does the planned ADU change how much cash I can pull out?
Not on a standard cash-out. The appraiser values the home in its current condition, and your estimate of completed value is not an underwriting input. Once built, the unit may support a higher value at a later appraisal, depending on comps and underwriter review.
Can projected ADU rent help me qualify?
It depends on the lender and the program. Many files qualify on deposits alone and ignore projected rent. If the unit is a non-owner-occupied rental, a DSCR structure that looks at property income may fit better.
How much equity do I need?
Enough to stay under the leverage cap for your occupancy type. Typically that means up to 80% LTV on a primary residence with a fixed expense ratio, 75% with an accountant-prepared ratio, and around 75% on a second home or investment property. Credit and loan size can lower those caps.
Should I refinance before or after the project?
Before the build gives you cash to spend, but on today’s value. After the build, a later refinance might reflect the improvement. The right sequence depends on your cash needs, your income documentation and how much equity you already hold.
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 request a quote through Lendmire’s quote page. Tax treatment varies; consult a qualified professional.
Equity you already own is the one asset an ADU plan can count on, so size the project to that number before you size it to the dream.
For how equity extraction works on an investment property, see Lendmire’s guide to cash-out refinance on an investment property.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage serving self-employed and high-net-worth borrowers in 16 states. Bank statement, P&L-only, 1099-only and asset-based mortgages are arranged through wholesale lending channels; Lendmire brokers the financing and the lender underwrites each application. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Scotsman Guide – Don’t Shut the Door on Quality Borrowers
2. Scotsman Guide – Rev Up the Engine for Non-QM Lending
3. UC Berkeley Terner Center – Jumpstarting the Market for ADUs
4. CFPB – Truth in Lending Act summary
5. Federal Register – Ability-to-Repay and Qualified Mortgage Standards
6. California YIMBY – Much Ado About ADU Financing
7. UC Berkeley Terner Center – ADU Brief
8. Hunton – Beware of “Business Purpose”
This article is part of Lendmire’s bank statement loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Does a Bank Statement Cash-Out Refinance Make Sense to Invest in the Stock Market? · How Lenders Underwrite a Bank Statement Cash-Out Refinance With a 50% Expense Ratio · Can You Get Approved for a Bank Statement Cash-Out Refinance When the Appraisal Is Low?
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.