How to Calculate Bank Statement Income on Personal vs Business Deposits

The Quick Read: Personal and business statements use the same basic math, but business deposits get an expense factor applied first. Personal deposits are usually counted more fully because the money has already left the business. Which one produces the stronger number depends on where your revenue actually lands and what your real overhead looks like.

• Qualifying income starts with eligible deposits averaged over the months reviewed. Programs in Lendmire’s network typically use 12 months of statements.
• Business statements apply an expense factor, which varies by program and lender.
• Transfers between your own accounts, loan proceeds, gifts and refunds generally come out.
• Owner-occupied files typically allow up to 90% LTV on a primary-residence purchase or rate-term refinance, subject to lender guidelines.
• A rental purchase often fits a different loan type, because rental loans can qualify on the property’s income instead.

The honest answer is that neither statement type is better in the abstract. Personal statements suit borrowers whose client payments land directly in a personal account. Business statements suit borrowers with a clean, separate business account and overhead that is truly modest. Many borrowers should have a broker run both.

Side-by-Side

The table below shows published industry norms for both statement types, and individual programs differ. Network-specific program figures appear in the sections that follow.

How the Math Works Step by Step

Start with the statement basis. Gather 12 months of statements for the account type you are using. Some lenders accept up to two years, and Bankrate notes that applicants may supply personal and business statements going back that far.

Next, strip out what is not income. Transfers between your own accounts, loan proceeds, gifts, refunds and one-time windfalls come out. Recurring earned deposits stay in.

Then average. Total the eligible deposits and divide by the number of months reviewed. That gives average monthly eligible deposits.

Finally, apply the account-type treatment. On personal statements, most or all eligible deposits count. On business statements, the lender deducts an expense factor for operating costs before the figure becomes qualifying income. The formula is simple arithmetic: average monthly eligible deposits multiplied by one minus the expense factor.

As arithmetic only, a business account with 20,000 in eligible monthly deposits and a 50% factor yields 10,000 in qualifying income. That 50% is a starting assumption some practitioners describe, not a rule of any program. Across the wholesale network, the factor varies by lender and by program, and a CPA-prepared ratio can sometimes support a lower one.

What Counts and What Doesn’t

The sorting step is where most self-estimates go wrong. Here is how common deposit types usually fall, though each lender sets its own standard.

Unidentified deposits are a common problem. Under the federal Ability-to-Repay standard at eCFR 12 CFR 1026.43, a lender on a consumer loan must verify the income it relies on using reliable third-party records. That is why underwriters want deposits identified as earned income rather than guessed at.

A Side-by-Side Worked Example

Run the same hypothetical deposits through both methods. Say a consultant deposits 24,000 over 12 months in client payments, all landing in one business account, and none of it is transfers or loan money. Average monthly eligible deposits come to 2,000, and the business-account method then applies an expense factor to that average before arriving at qualifying income.

Personal method: if the same eligible deposits had landed in a personal account, the full average counts, so qualifying income equals the average.

Business method: the average is multiplied by one minus the expense factor. At a 50% factor, qualifying income is half the average. At a 40% factor, it is sixty percent.

The takeaway is straightforward. The same revenue can produce a meaningfully different number depending on the account it sits in and the factor applied. That gap is why the choice matters, and why a lender should be asked to run both.

When Personal Statements Are the Better Fit

Personal statements tend to work better when client payments go straight to a personal account. A sole proprietor with no separate business account is the classic case. If business revenue is commingled with personal money, personal statements may avoid the work of separating the two.

They also help when the business has genuinely high overhead that a flat factor would miss. A personal account has already absorbed the business costs, so only the money you actually took home appears. A contractor who pays materials and payroll from a separate business account, then transfers a modest draw to personal, may find personal statements understate nothing, because the draw is real income.

The flip point: if your personal deposits include a lot of mixed money, expect heavy sorting and letters of explanation.

When Business Statements Are the Better Fit

Business statements fit when you run a separate business account with clean, recurring revenue and low overhead. A flat factor can overstate costs for a low-overhead consultant, and a CPA letter or P&L may support a lower factor.

Ownership matters too. If you own part of the business, qualifying deposits may be multiplied by your ownership percentage first. That is the main trap for partners.

Business statements fit poorly when expenses are heavy and variable. Home Equity Mart makes a similar point: a flat factor can understate costs for contractors with materials and payroll.

Commingled Accounts and Owner Transfers

The rule is to count each dollar once. If a client pays your business account and you move part of it to personal, count either the underlying deposit or the transfer, not both. Where one account holds both business and personal money, separate the two before you average, and be ready to show which deposits are which.

Uneven Income and Lookback Windows

Averaging smooths seasonal income, but trends matter. Rising income may favor a shorter window, while falling income makes lenders cautious regardless. Run the same data both ways before you pick. Declining deposits are a real underwriting flag, and a longer window will not hide them.

Mistakes That Shrink Your Number

• Counting transfers between your own accounts as income.
• Counting loan proceeds or gifts.
• Mixing statement periods from different months.
• Double-counting a business deposit and the owner transfer it funded.
• Skipping a letter of explanation for a large deposit.

Where Investors Fit In

Occupancy decides the disclosure regime. An owner-occupied file, meaning a primary residence or second home, is a consumer mortgage and TRID applies. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is business-purpose and exempt from TRID. Whether a given loan is business-purpose is a determination for the lender and counsel; the CFPB’s § 1026.43 page notes that the ability-to-repay rule does not apply to business-purpose credit.

For a house hack, bank statement income often fits, with owner-occupied cash-out reaching up to 80% LTV and 75% with an accountant-prepared ratio. Investment-property cash-out tops out around 75% LTV. Investment purchase leverage on bank statement documentation varies by lender. For a pure rental, the complete DSCR loans guide explains the alternative that qualifies mainly on the property’s rental income, subject to lender guidelines.

Lendmire’s piece How Personal vs Business Deposits Are Counted for a Bank Statement HELOC covers a related borrower question. Tax treatment varies; consult a qualified professional.

Key Terms Defined

Eligible deposit: a recurring, earned deposit that a lender will count as income.

Expense factor: the percentage of business deposits a lender assumes goes to operating costs.

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

Commingling: business and personal money held in one account.

The Balanced Verdict

Personal statements suit borrowers whose revenue lands in personal accounts. Business statements suit those with a clean, separate account and low overhead. If you cannot tell, run both and compare. 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.

About Lendmire

Lendmire (NMLS# 2371349), a non-QM mortgage broker serving investors in 41 markets including Washington, D.C., helps structure DSCR scenarios commonly evaluated around a property’s rental income rather than personal income paperwork, subject to lender guidelines. A Scotsman Guide Top Mortgage Workplace in 2025 and 2026, Lendmire places loans through wholesale investor lenders and is not a direct lender.

References

1. Bankrate

2. eCFR 12 CFR 1026.43

3. Home Equity Mart

4. CFPB § 1026.43 page