The Complete Guide For A 24-month Bank Statement Loan

Complete Guide For A 24-month Bank Statement Loan — The Quick Read: A 24-month bank statement loan looks at two full years of bank deposits. It skips W-2s and pay stubs. The underwriter averages the deposits. She strips out transfers and one-time windfalls. She applies an expense factor if the statements come from a business account. This is a non-QM product. It’s built for self-employed borrowers, 1099 contractors, and business owners. Their tax paperwork often understates their real cash flow. For a rental-property purchase, most investors also look at a DSCR loan. That loan skips personal income entirely. It’s reviewed on the rent the property brings in.

Key Terms Defined

Non-QM (non-qualified mortgage): This is a loan underwritten outside the standard full-documentation box. Conventional mortgages usually require that box. With non-QM, income can be verified other ways — not just tax transcripts. This category falls outside the federal Qualified Mortgage definition. That’s why lenders use other tools, like bank statements or asset-based math.

Qualifying income (bank statement method): This is the average monthly deposit number an underwriter calculates. She gets there by removing transfers, loan proceeds, and one-time deposits from 12 or 24 months of statements.

Expense factor: This is a percentage applied to gross business-account deposits. It backs out overhead, payroll, and materials cost. What’s left is the usable income figure. That’s the amount that counts toward qualifying.

Lookback period: This is the number of months of bank statements the lender pulls for review. It’s usually 12 or 24 months. The choice changes the qualifying income number a lot.

DSCR (debt service coverage ratio): This is a property-level ratio. It divides monthly rent by the monthly PITIA (principal, interest, taxes, insurance, and any HOA dues). It’s the core number on a DSCR investor loan. It has nothing to do with the borrower’s personal bank statements.

What Is a 24-Month Bank Statement Loan?

It’s a non-QM mortgage that qualifies a borrower using two years of bank deposits instead of standard income paperwork. Trade coverage explains the category simply: bank statement programs let self-employed borrowers qualify using 12 to 24 months of deposits, reflecting cash flow rather than tax returns. The 24-month version is the longer, safer lookback. It smooths out one strong month or one weak month. The average spreads across a wider window.

This isn’t some small corner of the mortgage market. Non-QM lending is currently the largest securitized non-agency mortgage product. The research firm Polygon Research puts non-QM loans at 10.2% of total U.S. mortgage originations by loan count and 10% by dollar volume, totaling over $239 billion across 697,605 loans. The Urban Institute’s Housing Finance Policy Center sees the same shift in the capital markets. It notes that the non-agency securitization share of residential MBS has climbed to 12.6%, its highest level since the Great Recession. And the typical borrower isn’t who most people picture. Scotsman Guide reports the average non-QM borrower carried a 776 FICO score, closing at an average 75% loan-to-value. Those numbers look like a conventional file, not a shaky one. Final terms still depend on lender guidelines, property type, leverage, and the borrower’s full credit picture.

Who Actually Uses This Program?

The core users are self-employed borrowers, 1099 contractors, and small business owners. Their tax paperwork doesn’t match their real cash flow. A bank statement loan is built for them.

• A sole proprietor who writes off equipment, mileage, and home-office expenses. This shrinks taxable income well below actual take-home cash.
• A 1099 contractor with lumpy, project-based income. A single 12-month snapshot might land on an unusually weak or unusually strong stretch.
• A business owner one to two years into a new venture. She has plenty of deposit history but not much tax-return history yet.
• A seasonal-income earner — a contractor, a wedding photographer, a short-term rental host. Her income swings month to month. She benefits from a longer averaging window.

For a straight W-2 employee, this product usually doesn’t help. Standard income documentation already tells the full story.

How the 24-Month Calculation Actually Works, Step by Step

The underwriter doesn’t just add up every deposit and divide by 24. She strips out irrelevant transfers first. She applies an expense factor if it’s a business account. What’s left is a qualifying income figure — and it can look very different from what you’d guess at a glance.

1. Statement collection. The lender pulls 24 consecutive months of statements. These come from personal accounts, business accounts, or both, depending on the program.

2. Deposit review. The underwriter looks at actual bank deposits — the cash flowing into the account. She strips out internal transfers, loan proceeds, and one-time windfalls that don’t reflect ongoing income.

3. Expense factor application (business accounts only). For business accounts, an expense factor is applied to calculate usable income based on the business type, number of employees, use of contractors, and operating structure. Here’s how the math works in one example: if the factor is 50%, average monthly gross deposits get multiplied by 0.50. That gives the qualifying figure. But expense factors differ by lender and loan program. Real files back this up. In one disclosed loan dispute, an underwriter applied a 17% expense factor after a borrower’s profit-and-loss statement didn’t support the bank statements alone. The factor isn’t a fixed federal number. It gets negotiated and depends on the paperwork.

4. Averaging into a monthly qualifying figure. Once the transfers and non-qualifying deposits are gone and the expense factor is applied, the remaining number gets averaged across all 24 months. That’s the monthly income used in underwriting.

5. Manual underwriting. This file doesn’t run through automated agency underwriting systems. So review is mostly manual. The underwriter checks ability to repay, where the down payment and assets came from, and, when it applies, business licenses or professional certifications.

6.

24 Months vs. 12 Months: Which Lookback Wins?

Neither period wins every time. It depends on whether income has been rising, falling, or staying flat. A longer lookback almost always gives a lower, more careful number than a shorter one when income has been trending up.

Comparing both periods matters. If income has genuinely grown, the shorter lookback often gives a higher qualifying number. A longer lookback works better for the borrower when a recent stretch was weak, or when the income is naturally seasonal. Most experienced brokers run both calculations before picking which documents to submit. The gap in qualifying income between the two windows can be big for the same borrower.

Personal vs. Business Statements — Different Scrutiny, Different Math

Personal account statements get checked for recurring deposits that trace back to a real income source. Business account statements get run through the expense-factor math from above. The same borrower can end up with two very different qualifying income numbers, depending on which account type she submits. That’s why picking the right account — or blending both — is often the biggest lever in the file.

A borrower who runs income through a personal account skips the expense-factor haircut entirely. The underwriter isn’t backing out overhead or payroll there. She just traces the deposits back to a legitimate, recurring source. A borrower who runs deposits through a business account will see gross revenue reduced by the expense factor before it counts. That’s because business deposits include money that flows right back out to cover operating costs. For a deeper walkthrough of how these program mechanics compare, Lendmire’s complete guide for a bank statement loan covers the broader product family, and the 12-month bank statement loan guide breaks down the shorter-lookback alternative in detail.

Where the General Rule Breaks: Edge Cases

The 24-month standard doesn’t always fit cleanly. A handful of real scenarios push underwriting off the default path.

A business younger than 24 months. Say a borrower sold a business, relocated, and started a new venture 12 to 15 months later. She may not have two years of standard income paperwork or a full 24-month statement history tied to the new business. Scotsman Guide describes this exact pattern. It notes that in these cases, non-QM underwriters weigh substantial liquid assets and credit quality alongside — or instead of — a full 24-month statement history. The 24-month version just isn’t available without the full window. The 12-month program, or a compensating-factors approach, usually becomes the fallback.

Account switches or bank mergers mid-period. Say a borrower changed banks partway through the 24-month window. Statements from both banks get pulled and reconciled. Underwriters expect a clean paper trail across the switch, not a gap.

Commingled personal and business deposits. Sometimes a self-employed borrower runs both types of income through one account. The underwriter then has to separate business revenue from personal deposits before treating each one correctly. This usually slows the file down and adds documentation requests. The expense factor only applies to the business-revenue portion.

Short-term rental income doesn’t fit the standard rent form. Consider an investor buying a short-term rental who relies on nightly-rate income. The standard appraisal rent schedule wasn’t built for that. Appraisal-industry guidance says it plainly: Form 1007 is not designed for single-family properties used as short-term rentals, and it precludes information about vacancy rates and business expenses tied to that use. Investors leaning on STR income should expect a different appraisal approach and extra documentation beyond the standard rent schedule. They should also remember that short-term rental rules vary by city, county, HOA, and property type. Confirm local rules before counting on projected rental income, no matter which loan product you use.

More than ten financed properties. Agency loans cap an investor at ten financed properties.

Bank Statement Loan or DSCR Loan — Which One Fits a Rental Purchase?

A bank statement loan is reviewed around the person. A DSCR loan is reviewed around the property. That single difference decides which product fits an investor buying a rental.

Real estate investors increasingly lean toward DSCR loans. These loans qualify based on property cash flow rather than personal income. That’s a good fit for anyone focused purely on rental performance instead of personal earnings. A bank statement loan still needs personal income documentation — just in the form of deposit averages instead of standard paperwork. It’s the right tool when the borrower is personally guaranteeing the loan and self-employment income is what qualifies her. But when the goal is simply to buy or refinance a rental and let the rent carry the file, DSCR underwriting is usually the cleaner path. There’s no personal income documentation. Qualification runs on whether the property’s income covers the payment, subject to lender guidelines.

Across select lenders in Lendmire’s wholesale network, DSCR purchase leverage typically lands at 75%-80% LTV. A handful of high-leverage programs reach 85% LTV for borrowers around a 700+ credit score. Cash-out refinances generally top out around 75% LTV, with roughly six months of seasoning expected on most files. A 1.00 debt service coverage ratio is where select programs start — it’s a floor for specific products, not a universal rule. Stronger coverage ratios typically open better leverage and pricing tiers. Credit floors run as low as 620 on parts of the network, though most programs prefer something closer to 660. A 700+ score unlocks the strongest leverage. Loan sizes generally run from roughly $150,000 up to $3,000,000 on standard programs. Loans above $2,500,000 are generally structured as 30-year fixed. Reserve requirements vary by lender, leverage, and loan size. They commonly run around six months of PITIA, stepping up to roughly nine months on larger loans above $1,500,000. Some conservative rate-term files at modest leverage see reserves waived entirely.

Here’s something worth stressing: clearing a 1.00 coverage ratio is not the same as positive cash flow. DSCR only compares rent to PITIA. It says nothing about repairs, vacancy, property management, utilities, or capital expenditures. All of that sits outside the ratio. A file can clear 1.00 on paper and still carry real out-of-pocket costs. An investor needs to budget for those separately.

Here’s a structural point that trips up new investors: a bigger down payment lowers the monthly payment and can lift the DSCR. But it never overrides leverage caps, credit floors, reserve requirements, or property eligibility. The strongest files clear both tests at once — enough equity in the deal, and enough rental income to cover the payment. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

Coverage below 1.00 is available through select lenders in the network. It typically comes with adjusted leverage and terms rather than standard pricing.Select lenders in the network do offer a no-ratio structure — no coverage ratio is calculated — though it generally requires existing primary-residence ownership, and leverage and terms adjust to match, subject to lender guidelines. Investors weighing DSCR against a bank-statement approach can compare the two head-to-head in Lendmire’s DSCR loan vs. bank statement loan for investors breakdown. Anyone building reserves for a 12-month program specifically should review reserve requirements for a 12-month bank statement loan before assembling documentation.

A few property types simply aren’t eligible through DSCR programs in the network, no matter the documentation style. Manufactured homes (single- and double-wide), log homes, and barndominiums fall outside these programs entirely. That’s worth knowing before an investor spends time pulling together 24 months of statements on a property that won’t clear eligibility anyway.

DSCR loans are built for non-owner-occupied investment properties. Because they’re business-purpose investor loans, they’re reviewed differently than a standard owner-occupied mortgage. As business-purpose loans, they’re also exempt from the consumer disclosure timelines (Loan Estimates, Closing Disclosures, the three-business-day waiting period) that apply to owner-occupied mortgages under Regulation Z.

For a fuller walkthrough of DSCR underwriting mechanics beyond this comparison, Lendmire’s complete DSCR loans guide covers the full program in depth.

About Lendmire

Lendmire, NMLS# 2371349, arranges DSCR investor financing through select lenders across a wholesale network spanning 40 markets, including Washington, D.C. Lendmire is a mortgage broker, not a direct lender. Every scenario described here is subject to lender approval and program guidelines that shift over time.

Tax treatment can depend on how funds are used and how the property is held. Investors should keep clear records and talk with a qualified tax professional before relying on any deduction.

Loan approval is never guaranteed, and nothing here is a commitment to lend. All scenarios described are subject to lender approval and to borrower, property, and program guidelines, which can vary and change. This article is general information only, not financial, legal, or tax advice.

Lendmire’s Top Mortgage Workplace recognition is documented by Scotsman Guide 2026 Top Mortgage Workplace.

References

1. Scotsman Guide — One Out of 20 Mortgages Are Non-QM

2. Scotsman Guide — Which Groups Are Driving Non-QM Lending

3. Polygon Research — Non-QM Market

4. Urban Institute — Housing Finance at a Glance

5. Scotsman Guide — To the Rescue With the Right Loan at the Right Time

6. Scotsman Guide — Helping Borrowers Fit the Boxes

7. McKissock — Form 1007 and Its Impact on Short-Term Rental Appraisals