Does a 24-Month Bank Statement Loan Work for Self-Employed Borrowers?

The Quick Read: Yes, it works when your deposits are steady and the two-year average supports the loan, because the file is reviewed on documented income under the applicable program, subject to lender guidelines. It is a fully underwritten non-QM loan, not a shortcut. The 24-month window helps most when income is seasonal or uneven. It hurts when your recent months are your best.

• Qualifying income comes from averaged deposits, not tax-return net income.
• Business statements get an expense factor. Personal statements usually do not.
• Transfers, loan proceeds, refunds and one-time windfalls come out of the math.
• Credit, assets, reserves and the property still get reviewed.
• Growing businesses often do better on a shorter lookback, where the program allows it.

Self-employed borrowers hit the same wall again and again. Write-offs lower taxable income, and the lender reads the tax return, not the bank account. Deposit-based underwriting exists to close that gap. Whether it helps you depends on what your deposit history looks like month by month.

How Does the 24-Month Calculation Actually Work?

The lender totals eligible deposits, applies an expense factor if the account is a business account, and divides by 24. That average becomes monthly qualifying income. Across the wholesale network, the mechanics are consistent even though the details differ by program.

Docsumo’s explainer on bank statement income verification describes the same sequence: screen the deposits, apply an expense factor to business accounts, then average over the lookback period.

1. Pick the account type. Personal statements count eligible deposits. Business statements count deposits minus an expense factor.

2. Screen the deposits. Transfers between your own accounts, loan proceeds, refunds and one-time windfalls come out.

3. Apply the expense factor. A 50% default is common in the market. A CPA or tax-preparer letter documenting a lower ratio can replace it, if the underwriter confirms it against the actual bank activity. Most programs set the factor by business type, and no borrower should assume a specific number.

4. Average over the lookback. Adjusted deposits divided by 24 gives the monthly figure on a 24-month file.

5. Run the rest of the file. Credit, assets, debt-to-income, down payment and property type all still apply.

Here is a plain illustration with round numbers and no rates. Say a consultant deposits an average of 10 units of eligible income per month in the first year and 14 in the second. The 24-month average is 12. A 12-month lookback on the recent year would show 14. Same business, different qualifying income. That gap is the whole decision.

Does 24 Months Work for Your Income Pattern?

It works best for uneven income and worst for fast growth. The longer window smooths the dips and the spikes. It also drags a strong recent year down toward an older, weaker one.

Declining income gets extra scrutiny. If recent months fell off, expect the lender to focus on the lower number, not the two-year average. Run both lookbacks before you pick a program, where the program offers both.

Self-employment history matters too. Most programs want at least two years of self-employment, and a few allow a shorter history with prior experience in the same line of work. Programs vary. For the newly self-employed, Lendmire’s piece 12 vs 24 Month Bank Statement Loan for the Newly Self-Employed covers that decision in detail.

What Deposits Help and What Hurts?

Clean, repeating deposits into one primary account help. Mixed accounts and unexplained lumps hurt. Commingling is a common reason these files stall.

What helps:

• Business income landing in one account, with personal spending kept separate.
• Deposits that match invoices, 1099s or a client list.
• A CPA letter ready if the real expense ratio sits below the default.

What hurts:

• Personal and business money running through the same account.
• Large unexplained deposits. These usually get excluded from income rather than killing the file, but they shrink the average.
• Transfers between your own accounts that look like revenue.
• Overdrafts and returned items.

Documents typically involved: statements for the full period, proof of self-employment such as a business license, articles of incorporation or a CPA letter, and a P&L or CPA letter if you want a lower expense factor. Lenders generally treat you as self-employed if you own 25% or more of a business, receive a 1099 as a contractor, or file a Schedule C.

12 vs 24 Months: Which One Fits?

The 24-month window favors uneven income. The 12-month window favors growth. The network’s usual advice is to run both when the program allows.

Programs in the network differ on the statement window. Some lenders review 12 months of statements, and others ask for 24. Where a lender asks for 24, the extra year gives the underwriter more history to review. It does not lighten the file.

What Do Lenders Review Beyond Income?

Everything else on a normal mortgage file. This is not a loan without documentation. Credit, debts, assets, reserves and the property are all reviewed.

Across the wholesale network, a few program realities are typical. Loan sizes run from roughly $125,000 to $3,500,000. Reserves commonly run around six months of the housing payment. Leverage depends on occupancy and transaction:

• On a primary residence purchase or rate-and-term refinance, select lenders go up to 90% LTV, with the strongest files earning the top of that range.
• On an owner-occupied cash-out, a primary residence goes up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio. A second home goes up to 75% LTV.
• On an investment property cash-out, leverage tops out around 75% LTV.
• On an investment purchase using bank statements, leverage varies by lender.
• Qualifying from liquid assets instead runs to about 80% LTV on a primary residence.

All of this is subject to lender guidelines and individual underwriting. Terms follow each lender’s program sheet, so expect differences from one lender to the next.

Which Rules Apply: Owner-Occupied or Rental?

Occupancy decides the disclosure regime. An owner-occupied file, a primary residence or second home, is a consumer mortgage and carries the full consumer disclosure process. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is a business-purpose loan.

The federal rule text says business-purpose loans fall outside the ability-to-repay provisions, and that investment-purpose loans are treated as business-purpose (Federal Register final rule). The commentary also says rental property with more than two housing units is deemed business-purpose, while one- and two-unit rentals call for weighing the facts (CFPB Regulation Z exempt transactions). That is a general point, not legal advice.

Bank Statement or DSCR for an Investor?

A bank statement loan is reviewed around personal cash flow. A DSCR loan is reviewed for the property on its rent coverage. They solve different problems.

Bank statements make sense when you are buying a primary residence or second home, or when personal income needs to carry a larger portfolio. DSCR often fits a pure rental purchase, because it qualifies primarily on property-level rental income covering the payment, subject to lender guidelines, and you skip documenting personal income. Some programs below 1.00 coverage are available through select lenders in the network, though leverage and terms adjust. Lendmire’s complete DSCR loans guide lays out how the two compare.

Tax treatment varies; consult a qualified professional.

Key Terms Defined

Non-QM: A mortgage that falls outside standard qualified-mortgage documentation rules but is still fully underwritten.

Expense factor: The share of business deposits the lender treats as operating cost, not income.

Lookback: The number of months of statements the lender averages.

Commingling: Mixing personal and business money in one account.

P&L: A profit-and-loss statement, often prepared by a CPA, showing business income and costs.

Pre-Application Audit

Run this before you apply:

1. Pull every statement for the full lookback, in the account you actually use.

2. Mark transfers, refunds and loan proceeds so you can explain them.

3. Flag any deposit that is not ordinary business income.

4. Separate personal and business spending going forward.

5. Ask your CPA whether the real expense ratio sits below the default.

6. Compare the 12-month and 24-month averages yourself.

7. Check for overdrafts and returned items.

8. Confirm your self-employment history meets the program minimum.

9. Document reserves.

10. Gather proof of ownership and business status.

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. Consumer mortgage licensing for this lane covers 16 states, and Lendmire arranges these loans as a broker through select lenders. Reach the team at 828-256-2183 or request a quote.

About Lendmire

As a mortgage broker (NMLS# 2371349), Lendmire helps self-employed and high-net-worth borrowers in 16 states qualify on bank statements, a profit-and-loss statement, 1099s or liquid assets instead of traditional personal-income documentation, through wholesale lenders. Lendmire is never the lender; program terms are set by the lender and its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Docsumo – Bank statement income verification

2. Federal Register – CFPB ATR/QM Final Rule

3. CFPB – Regulation Z § 1026.3 Exempt transactions