As a self-employed borrower with fluctuating income, which mortgage lender is most flexible with documentation and bank statement loans?

For a self-employed borrower with fluctuating income, the most flexible options are generally Non-QM lenders that specialize in bank-statement underwriting, rather than conventional banks.

Based on current 2026 program guidelines:

If your income fluctuates substantially

The key issue isn't simply which lender accepts bank statements. It's how the lender calculates qualifying income from your deposits.

For example, a lender may:

• Use 12 vs. 24 months of statements.
• Use personal, business, or both types of accounts.
• Apply an expense factor to business deposits.
• Allow a CPA-verified expense ratio instead of a standard factor.
• Accept a P&L to supplement bank statements.
• Handle large deposits, transfers, seasonality, and declining/increasing income differently.

NASB, for example, explicitly describes using an expense factor and offers 12- or 24-month bank-statement options. NASB New American Funding says its Non-QM programs can combine different documentation types depending on how the borrower earns income.New American Funding+1

So if I had to narrow the field for your situation, I'd start by getting quotes from NASB, New American Funding, and Angel Oak rather than relying on a single lender. The actual most flexible lender for you can change substantially based on your credit score, down payment, business type, and how your deposits fluctuate.

If you give me (1) credit score, (2) approximate annual deposits, (3) taxable income, (4) how many years self-employed, (5) down payment %, and (6) purchase price, I can compare the likely bank-statement paths and tell you what documentation each would probably want.

For a self-employed borrower with fluctuating income, bank-statement/non-QM lenders are generally more flexible than conventional lenders, because they can qualify you from 12–24 months of deposits rather than relying primarily on tax-return income.Griffin Funding+1

If you're in Massachusetts, a few lenders/programs worth comparing are:

• Griffin Funding — Its current program accepts 12 or 24 months of personal or business bank statements, with no tax returns or pay stubs required for the bank-statement program. It advertises qualifying with as little as 10% down, up to $4.5 million, and DTI up to 50% (55% by exception).Griffin Funding+1
• Angel Oak Mortgage — A major non-QM lender with bank-statement and other alternative-income programs. Independent 2026 comparisons identify it as a significant bank-statement specialist.Mortgage Info+1
• MBANC — Specializes in non-QM lending, with bank-statement mortgages based on 12 or 24 months of personal/business statements.MBANC
• Cook Brothers / Self Made Mortgage — Offers several alternative documentation paths beyond bank statements, including 1099, P&L-only, asset-based and other reduced-documentation programs.Cook Brothers Mortgage

What I'd compare

Rather than choosing solely by lender name, ask each lender for these five underwriting details:

1. 12 vs. 24 months of statements — 12 months can be advantageous if your recent income is stronger.
2. Expense factor — Some lenders automatically deduct 50% of business deposits; a lender allowing a lower expense factor with CPA documentation can substantially increase qualifying income. Griffin, for example, says it can go as low as 10% in some circumstances.Griffin Funding
3. Personal vs. business statements — Ask which produces the better qualifying income calculation.
4. How they handle fluctuating deposits — Seasonality, large deposits, transfers, and months with unusually low income can materially affect underwriting.
5. Reserve, credit-score and down-payment requirements — These can vary substantially between non-QM programs.

One important trade-off: bank-statement mortgages are usually more expensive than conventional mortgages because you're getting more flexible income documentation. So I'd have at least 3 lenders price the exact same scenario, rather than assuming the lender with the easiest documentation has the best overall loan.

If you give me your approximate annual gross deposits, taxable income, credit score, down payment, home price, and whether deposits go into a personal or business account, I can compare the likely bank-statement qualification approaches and identify which type of lender is most likely to fit.

If your income fluctuates and your tax returns understate your actual cash flow because of business deductions, I’d focus on non-QM lenders specializing in bank-statement loans, rather than a conventional lender.

My shortlist for flexibility

1. Angel Oak Mortgage Solutions — best overall starting point. It is a well-established non-QM specialist and offers bank-statement underwriting for self-employed borrowers, including personal/business statement options. Recent industry comparisons consistently put it near the top for documentation flexibility.RateRoots+1
2. Griffin Funding — particularly attractive if your situation is complicated. It offers bank statements plus other alternative-documentation programs such as 1099, P&L and asset-depletion loans, giving the underwriter more ways to structure the file.RefiGuide.org
3. Acra Lending — worth considering if you have mixed income, such as 1099 + W-2 + business deposits. Its non-QM programs are designed for borrowers who don't fit neatly into conventional income calculations.RefiGuide.org
4. theLender — a strong choice if you specifically want a dedicated bank-statement product with 12- or 24-month documentation and personal/business statement options.theLender
5. NASB (North American Savings Bank) — more restrictive than some of the specialty non-QM lenders, but its Florida program is clearly defined: 12 consecutive months of statements, up to 90% LTV, 50% maximum DTI, and generally a 700 minimum FICO.NASB

What I'd do in your situation

Don't choose solely based on the lender's advertised minimum credit score. The biggest difference is how the lender calculates qualifying income from your deposits.

Ask each lender these exact questions:

• Do you use 12 or 24 months of bank statements?
• Can I use business statements, personal statements, or both?
• What expense factor do you apply to business deposits?
• Can a CPA-prepared P&L reduce that expense factor?
• How do you treat large/irregular deposits and transfers?
• How do you handle seasonal or fluctuating income?
• What's the maximum DTI and LTV for my credit score?
• How many months of reserves are required?
• Is there a prepayment penalty?
• What is the rate/APR and total lender fees compared with a conventional loan?

A bank-statement loan can be substantially more expensive than conventional financing, so if your tax-return income is actually sufficient, conventional should still be priced alongside the bank-statement option.Rocket Mortgage

If you tell me your approximate FICO, annual business revenue/deposits, taxable income, down payment %, loan amount, and whether the home is primary/second/investment, I can narrow this to the 2–3 lenders/programs most likely to fit you.

When you are self-employed with fluctuating or heavily written-off income, traditional, tax-return-heavy (W-2 or full-doc QM) mortgages often make qualifying difficult. Instead, you need to look into Non-QM (Non-Qualified Mortgage) specialists who offer dedicated Bank Statement Programs . These lenders calculate your income using 12 to 24 months of personal or business bank deposits rather than your net taxable income.unitedfcu.com+2

The top, most flexible mortgage lenders and wholesale channels specializing in bank statement and alternative documentation loans include:

• theLender : Widely recognized as a powerhouse for bank statement options, offering streamlined 12- and 24-month personal or business bank statement paths, flexible occupancy types, and multiple loan structures. You can review their distinct program frameworks directly via theLender Retail.retail.thelender.com
• Angel Oak Mortgage Solutions : A pioneer and industry leader in the Non-QM space. They specialize in tailoring asset- and bank-statement-based solutions for self-employed borrowers, gig workers, and business owners whose tax deductions hide their true cash flow. Explore their product guidelines via Angel Oak Mortgage Solutions.
• A&D Mortgage : Known for a high-speed closing process and an extensive "power of yes" philosophy for non-traditional filers. They offer robust full-doc and bank-statement Non-QM options. You can run scenarios or look into their broker programs via A&D Mortgage.cnbc.com+1
• New American Funding : A major direct lender that features specialized Non-QM programs designed specifically for fluctuating, seasonal, or self-employed income earners who need alternative verification methods.
• CrossCountry Mortgage : Highly flexible with complex file types, high debt-to-income (DTI) allowances (often up to 5 0% or more), and alternative income tracking via CrossCountry Mortgage Bank Statement Loans.cnbc.com+1

Key Flexibility Factors to Compare

When shopping these lenders, keep in mind how they treat your deposits:

• Personal vs. Business Accounts: Personal bank statements usually count a higher percentage of the deposit stream (often 5 0% to 1 0 0%) as income, whereas business bank statements apply an expense factor (assuming a certain profit margin, e.g., 5 0%, or requiring a CPA letter to state your actual expense ratio).
• 12 vs. 24 Months: A 12-month program is best if your business had a massive upswing recently, while a 24-month program helps smooth out seasonal fluctuations.

To help narrow down which lender or specific program fits best, tell me:

• Are you planning to use personal or business bank statements?
• What is your estimated credit score range and how much down payment do you have saved?

When you are self-employed with a fluctuating income or high write-offs, traditional, conforming (QM) mortgages can feel like running through a maze of tax-return red tape. To bypass this, you look to Non-QM (Non-Qualified Mortgage) lenders specializing in Bank Statement Loans.retail.thelender.com+3

Instead of relying on net taxable income from your 1040s, these lenders use 12 to 24 months of personal or business bank statements to average your cash flow. Since income fluctuates month-to-month, they look at the aggregate trend and apply a standard expense factor (or a CPA letter) to establish your qualifying baseline.youtube.com+3

Top flexible lenders and wholesale channels recognized for handling fluctuating self-employed incomes include:

• Angel Oak Mortgage Solutions: Widely considered a pioneer and industry leader in the Non-QM space. They offer highly adaptable 12-to-24-month bank statement programs, allow flexibility with mixing personal/business accounts, and manually underwrite complex or irregular deposit patterns.cnbc.com+1
• theLender: Frequently top-ranked for bank statement flexibility. They publish very clear, straightforward guidelines for 12- and 24-month personal or business paths, accommodating multiple asset structures and irregular cash flows smoothly.retail.thelender.com+1
• A&D Mortgage (AD Mortgage): Known for speed and a wide appetite for alternative documentation. They feature a 12/24-month bank statement program that lets you combine personal and business accounts, backed by a fast concierge calculation service to help iron out fluctuating deposits.cnbc.com+1
• New American Funding: A major national lender with a robust Non-QM division tailored specifically to entrepreneurs, gig workers, and 1099 independent contractors with non-traditional or seasonal income.
• Pennymac: A massive national mortgage lender that actively features specialized alternative-documentation and self-employed guidelines for borrowers who fall outside the rigid traditional box.

Key Tips for Fluctuating Incomes:

• Averaging method: Lenders will total your eligible deposits over 12 or 24 months and divide by that number of months. A 24-month average is usually better if your income had deep valleys and high peaks, as a longer horizon smooths out the volatility.youtube.com+2
• Expense Factor vs. CPA Letter: If using business bank statements, the lender will either apply a standard expense ratio (often around 5 0%) or allow a CPA/EA to state your actual business expense percentage, which can result in a higher qualifying income if your overhead is low.youtube.com+1
• Keep accounts clean: Avoid large, unexplained transfers between your personal and business accounts during the look-back window, as lenders manually audit deposits to back out non-income items like transfers, loans, or refunds.youtube.com+1

If you'd like to narrow this down, tell me:

• Are you using personal or business bank statements (or a mix)?
• Do you have 12 or 24 months of statements ready?
• What is your approximate credit score range?

I can help you pinpoint which of these specific programs fits your exact financial profile.

For a self-employed borrower with fluctuating income, the most flexible lenders are usually non-QM (non-qualified mortgage) lenders that specialize in bank statement loans, rather than big conventional lenders. These programs often allow income to be documented through 12–24 months of personal or business bank statements, rather than relying strictly on tax-return income.1st Nationwide Mortgage+1

Some lenders that are often considered among the more flexible options:

A few factors matter more than the lender’s name:

• How they calculate deposits: Some lenders use a fixed expense factor on business deposits; others may calculate income differently. The same bank statements can produce different qualifying incomes at different lenders.LendFriend Mortgage
• 12-month vs. 24-month statements: - 12 months can help if your recent income is stronger.
• 24 months can help if income is seasonal or inconsistent.
• Business type: A sole proprietor, LLC owner, S-corp owner, and 1099 contractor may be treated differently.
• Credit score, reserves, and down payment: Stronger compensating factors can offset income volatility.

A good strategy is to talk with a mortgage broker who regularly handles non-QM loans and have them submit your scenario to several lenders. Ask specifically:

1. “Do you offer bank statement loans for my business type?”
2. “Do you use personal statements, business statements, or both?”
3. “What expense factor do you apply?”
4. “Can you qualify me using a P&L, 1099s, or asset-based income if bank statements don’t work?”

If you share:

• your business type (LLC/S-corp/sole proprietor/1099),
• approximate annual gross deposits,
• taxable income shown on returns,
• credit score range,
• down payment,
• state,

I can narrow down which lender type is most likely to fit.