Bank Statement Qualifying Income Estimator

A rough, illustrative look at how lenders typically calculate qualifying income from bank statements for self-employed borrowers. The actual number on your loan file depends on your specific business type, expense factor, lender, and program version.

READ FIRST — This is not a quote, pre-approval, or commitment to lend.
This estimator is for illustrative and informational purposes only. The math here uses common 2026 industry assumptions — your actual qualifying income will be different. Bank statement programs vary widely between lenders and program versions. Key reasons your real number will differ:

Expense factor varies by industry. A doctor's office is treated differently than a roofing contractor. Most lenders use 50% as a default for service businesses, but COGS-heavy industries (manufacturing, restaurants, retail, construction) often get 60–75% expense factors. Some lenders set the floor at 30%, others won't go below 50%.
Personal vs. business statements behave differently. Most investors do NOT use 100% of deposits even on personal statements — they apply ownership-percentage adjustments and add-back limitations. Don't assume "personal statements = full deposits."
Transfers, refunds, loan proceeds, and one-time deposits get backed out — sometimes manually, sometimes with a CPA letter, sometimes denied entirely.
Some lenders use 12 months, some use 24 months, and the 12-month option usually carries a rate adjustment or LTV reduction.
P&L-only and 1099-only programs use completely different math than bank statement programs.

The only way to know your true qualifying income is to submit actual statements to a specific lender for a specific program. Use this tool as a directional starting point, then call Mike for a real conversation.

1. Which type of statements? Business bank statements (recommended starting point — most common program) Personal bank statements (different rules, most lenders apply ownership and add-back limits)

2. Statement period 24 months (most common, typically best rate) 12 months (faster, but rate adjuster or LTV cap usually applies)

3. Total deposits across the statement period Add up all deposits for the chosen period. Exclude transfers between accounts, refunds, loan proceeds, and one-time non-business deposits. Most lenders verify this manually.

4. Ownership percentage If you own less than 100% of the business, lenders apply your ownership percentage to the qualifying income.

5. Industry type (drives the expense factor) Service / professional services / consulting (~50% expense factor) Medical / dental / legal practice (~50% expense factor) Retail / e-commerce / real estate brokerage (~60% expense factor) Restaurant / food service (~65% expense factor) Construction / contracting / trades (~70% expense factor) Manufacturing / wholesale (~75% expense factor) CPA letter expense ratio (varies, some lenders allow as low as 30% with documentation)

How lenders actually calculate bank statement income

The estimator above runs the standard simplified formula. Here's what actually happens during real underwriting, summarized from current 2026 NonQM guidelines we work with:

The expense factor is the biggest variable

The expense factor is the lender's assumption about what portion of your deposits is consumed by business expenses before any cash reaches you. A service business with low overhead (a consulting practice, a solo attorney, a small medical practice) typically gets a 50% expense factor, meaning the lender assumes half your deposits go to expenses and half is qualifying income. A construction company, restaurant, or wholesaler typically gets a 60-75% expense factor because COGS-heavy businesses have much higher real expenses.

Some programs let you use a CPA-prepared letter or P&L statement to document a lower expense ratio. If your CPA can attest that your business runs at a 30% expense ratio, certain lenders will use that number, which materially changes the qualifying income. Other lenders refuse the CPA-letter path entirely. Program-by-program.

Personal statements are not "use everything"

A common misconception is that personal bank statements let you count 100% of deposits as income. They don't. Most investor guidelines apply additional adjustments, ownership-share math when business income is deposited into a personal account, add-back limitations for non-recurring deposits, and program-specific haircuts to account for the fact that personal accounts mix business and personal cash flow. Personal statement programs also frequently come with lower max LTVs and stricter reserve requirements than business statement programs.

What gets backed out

Transfers between your accounts (deposits that came from another account you own)
Loan proceeds (lines of credit, term loans, SBA money)
Tax refunds
Insurance payouts
Gifts
One-time non-recurring deposits (sale of an asset, settlement, etc.)

Underwriters manually walk through each statement to identify these. The estimator above assumes you've already excluded them from "total deposits", if you haven't, your real qualifying income will be lower than the estimate.

12 vs. 24 months

24-month bank statement loans typically carry the best pricing. 12-month options exist and they're useful when you've had a recent income jump, but they almost always come with a rate adjuster (sometimes a quarter point or more) or an LTV reduction. The 24-month average smooths out seasonal fluctuations, which is why investors prefer it.

Alternative income paths (when bank statement doesn't fit)

1099-only programs, for independent contractors with a clean 1099 paper trail. Often simpler than bank statements.
P&L statements, a CPA-prepared profit and loss often gets used in place of bank statements for certain business types.
Asset utilization / asset qualifier, qualifying off liquid asset balance rather than monthly income. Useful for high-net-worth retirees, sold-business owners, or anyone with strong assets but variable income.
DSCR loans, investment property only, qualifies on rental income vs. PITI, not your personal income at all.