How Bank Statement Loans Actually Work: 12 Months vs 24, Expense Ratios and Down Payment

Twelve or twenty-four. That is the first decision in a bank statement file, and it moves the qualifying income more than almost anything else you will do.

A bank statement loan does not read your tax returns. It reads money landing in your account. The lender totals your qualifying deposits over a 12-month or 24-month window, applies an expense factor meant to approximate what it costs to run your business, and divides by the number of months. The result is your monthly qualifying income. That is the whole engine.

Everything else — FICO tiers, LTV caps, reserves — is ordinary underwriting. The deposit analysis is what makes this product different, and it is where files get made or broken.

The arithmetic, on a real file

Take Priya, a composite of files we see in Plano. She owns 100% of an IT staffing company, has been running it for six years, and has a 724 FICO. She pulls 24 months of business account statements.

Step	Amount
Total deposits, 24 months	$1,640,000
Less: transfers from her own personal account	−$96,000
Less: SBA loan proceeds	−$75,000
Less: sale of a company vehicle	−$45,000
Less: wire from her father to cover a slow payroll quarter	−$60,000
Qualifying deposits	$1,364,000
Divided by 24 months	$56,833 / month
Expense factor applied (50%, investor-set)	−$28,416
Monthly qualifying income	$28,417

Now run it into a payment. At a 45% debt-to-income ratio she has $12,788 a month of total debt capacity. Her car and card minimums take $900, leaving $11,888 for the full housing payment. Assume $1,500 a month for taxes, insurance and HOA on the house she is targeting. That leaves $10,388 for principal and interest.

At a 6.95% 30-year fixed — the Freddie Mac Primary Mortgage Market Survey average for the week of September 17, 2026, which is a survey average and not an offer — principal and interest run about $6.62 per $1,000 borrowed. $10,388 ÷ 6.62 × 1,000 ≈ $1,569,000 of loan.

Her tax returns, after every add-back the agencies allow, showed $91,000 of annual income. That file bought a very different house.

Why 12 months and 24 months give different answers

The 24-month window averages two years. The 12-month window reads only the most recent year. If Priya's business grew, the shorter window wins.

Split her numbers: the most recent 12 months held $760,000 of qualifying deposits, the older 12 held $604,000. On the 12-month program her gross monthly deposits are $63,333 instead of $56,833, and after the same expense factor her qualifying income is $31,667 rather than $28,417. That is $3,250 a month of additional income, which at a 45% DTI is roughly $1,462 more of debt capacity, or about $220,000 more loan.

If the business shrank, the 24-month window protects you. Run both. A loan officer who only quotes you one of them has not done the analysis.

Personal statements versus business statements

You can use either. They are treated differently, and the difference is the expense factor.

Money in a business account is gross revenue. Payroll, rent, inventory, insurance and fuel all still have to come out of it. So the investor applies an expense factor — commonly 50% — to approximate the cost of running the business. Some investors will accept a lower factor when your CPA or tax preparer signs a letter stating the business's actual expense ratio, which matters for service businesses like staffing, consulting or a medical practice where real overhead runs well under half.

Money in your personal account has usually already been through the business. It is what you paid yourself. So investors typically count a much larger share of those deposits — in many programs close to all of them — because the expenses came out upstream.

	Business statements	Personal statements
What the deposits represent	Gross business revenue	Owner draws and pay
Typical expense factor	Around 50%, investor-set	Much lower, sometimes none
Ownership percentage applied	Yes, income is prorated	Not applicable
Best fit	High-revenue retail, fuel, restaurant	Owners who pay themselves consistently
Common failure	Personal deposits mixed in	Business revenue deposited directly

If you own 60% of the business, the business-statement income is prorated to 60%. Partners who have never written down their ownership percentage should fix that before applying — see K-1 Income, Distributions and the Restaurant Partnership.

What counts as a qualifying deposit, and what gets stripped

An analyst reads every page. Deposits that represent revenue count. Deposits that represent anything else come out.

Removed from the total:

• Transfers between accounts you own. Moving $8,000 from personal to business and back inflates deposits without creating income.

• Proceeds from loans, lines of credit, SBA funding, equipment financing and merchant cash advances.

• One-time asset sales — a truck, a piece of equipment, a location you closed.

• Tax refunds, insurance settlements, and legal settlements.

• Credit card cash advances and check-cashing round trips.

• Family money moving through the business account.

That last one deserves its own paragraph, because it is common in our community and almost nobody writes about it.

The family money problem

Your brother wires $60,000 to help you through a slow quarter. Your father sends money from India for the store's renovation. A cousin lends you $25,000 to cover an inventory buy before the holidays and you pay it back in four months.

All of it lands in the business operating account, because that is where the money is needed. And every dollar of it gets stripped out of your deposit analysis, because it is not revenue.

Worse, it can create a second problem. On the conventional side, Fannie Mae's B3-4.2-02 defines a "large deposit" as a single deposit exceeding 50% of total monthly qualifying income, and on a purchase, any such deposit needed for down payment, closing costs or reserves has to be sourced. On the bank statement side the analyst applies similar judgment to outsized irregular deposits, and a $60,000 wire into an account averaging $56,000 a month of revenue does not read as revenue.

The fix is boring and it works: keep family money out of the operating account. Send it to a separate personal account, document where it came from, and keep it out of the deposit pool the lender is analyzing. The sourcing rules for incoming wires are covered in Large Deposits: Why Your Lender Is Asking About That Wire From India.

Representative program parameters

These are one representative non-QM investor's published bank statement program terms. Non-QM parameters are set by each investor and vary considerably, so treat these as an illustration of the shape of the product, not as universal requirements.

Parameter	Representative program
Statement period	12 or 24 months, business or personal
Minimum FICO	640
Max LTV at 640 FICO	75%
Max LTV at 720 FICO	90%
Loan amount range	$150,000 – $4,000,000
Minimum self-employment	1 year in the field
Seasoning after foreclosure, short sale, bankruptcy or deed-in-lieu	2 years

The FICO-to-LTV relationship is the part borrowers underestimate. At 640 you are bringing 25% down. At 720 you may be bringing 10%. On a $1,500,000 purchase that is a $225,000 difference in cash at the table, produced entirely by eighty points of credit score.

As for pricing: bank statement loans carry a premium over conventional. How large depends on the investor, your credit, your LTV and which documentation type you use. Anyone quoting you a fixed spread sight unseen is making it up. Get a real quote on your real file.

Cleaning up your deposits over the next twelve months

If you are buying in a year rather than a month, the deposit analysis is something you can improve on purpose.

Deposit all revenue. Every card batch, every check, every cash drawer count goes into the account you plan to document. Cash you keep out of the bank does not exist to an underwriter.

Stop the round trips. If you are moving money between your own accounts weekly, consolidate. Each transfer is a deduction from your qualifying total and a question in the file.

Keep one clean operating account. Not four. Separate personal spending from business revenue, and stop running the restaurant's Square deposits into the same account where your mother's gift landed.

Pay yourself on a schedule. Consistent owner draws make the personal-statement option viable, which is often the better program for service businesses.

Do not do this

Do not deposit cash in a pattern you cannot explain. Structuring deposits to stay under reporting thresholds is a federal problem, not a mortgage problem, and it will end the loan conversation immediately. Deposit what you take in, when you take it in.

And do not open a new business account ninety days before applying because the old one looks messy. You will have erased the history the analyst needs and kept every problem that was in it.

Before you commit to this product, confirm you cannot qualify conventionally — start with The Add-Back List and the full menu in Your Tax Return Says $40,000. To have both paths priced side by side on your file, start an application.

Frequently Asked Questions

Q: How do lenders calculate income on a bank statement loan?
A: They total qualifying deposits over 12 or 24 months, subtract deposits that are not revenue — transfers, loan proceeds, asset sales, gifts — apply an expense factor to the remainder, then divide by the number of months. On business accounts the factor is commonly around 50%. Ownership percentage is applied if you do not own 100%.

Q: Is a 12-month or 24-month bank statement loan better?
A: Whichever produces the higher qualifying income for your business. A growing business usually does better on 12 months because the recent year carries more weight. A business that had a stronger prior year usually does better on 24. Ask your loan officer to calculate both before choosing.

Q: What down payment do I need for a bank statement loan?
A: It tracks your credit score. Under one representative investor's program, 640 FICO caps LTV at 75%, meaning 25% down, while 720 FICO allows up to 90% LTV, meaning 10% down. Other investors set different tiers, so the answer depends on which program your file goes to.

Q: Can I use a bank statement loan if I have only been self-employed one year?
A: One representative program requires a minimum of one year self-employed in the field, so yes under that program. Conventional financing generally expects two years, with a documented exception. Compare both before assuming non-QM is your only option.

Q: Do transfers between my own accounts count as income?
A: No. Transfers between accounts you own are removed from the deposit total, because they do not create new revenue. The same applies to loan proceeds, sale of business equipment, tax refunds and money sent by family. Keeping those flows out of your main operating account protects your qualifying income.

Ready to get started? Masala Loans by Matador Lending specializes in exactly this. Call 713-366-4668 or get your no-haggle rate at masalaloans.com.

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