Bank Statement Loan Expense Factor Rules for 1099 Earners

The Quick Read: The expense factor is the share of business-account deposits a lender treats as business costs, set by each program’s guidelines rather than any federal formula, so identical 1099 deposits can produce very different qualifying income depending on account type, supporting documents, and program. A bank statement file is reviewed on documented income under the applicable program, subject to lender guidelines. The factor is often the largest single lever in the file.

• Business-account statements usually get an expense factor. Personal-account statements usually do not.
• The lender sets the factor. You do not pick it, though a third-party expense ratio may support a lower one where the program allows.
• Deposits get scrubbed first: transfers, loan proceeds, gifts, and refunds come out before any averaging.
• On a rental purchase, a DSCR loan can skip this math entirely, because the property’s rent decides the file.
• Every program differs, so get the factor in writing before you pick a lender.

Key Terms Defined

Expense factor: The percentage of business-account deposits a lender subtracts as presumed costs before counting the remainder as income.

Eligible deposits: Deposits left after the lender removes transfers between your own accounts, loan proceeds, gifts, refunds, and one-time windfalls.

Qualifying income: The monthly figure the lender uses for the debt-to-income test after averaging deposits and applying the factor.

Third-party expense ratio: A cost percentage prepared or supported by a CPA, enrolled agent, or licensed tax preparer, used where a program accepts it in place of the default.

1099-NEC: The form a client files to report what it paid you as a nonemployee. It reports gross receipts, not profit.

Business statements vs. personal statements: Statements from an account used by the business, versus statements from an account in your own name where the income lands.

What the Expense Factor Does and Why Lenders Use It

The factor stands in for your costs. A lender reading bank deposits cannot see your books. So it assumes a share of each business deposit went to expenses and counts only what is left.

This is the whole reason the product exists. Conventional underwriting reads net income off traditional personal-income documentation, and write-offs shrink that number. Bank statement programs read deposits instead. The factor puts a cost assumption back in, so the lender still avoids counting gross receipts as income.

Across Lendmire’s wholesale network, the pattern is consistent. Programs read 12 months of business or personal statements, average the eligible deposits, and apply a lender-specific factor where the account is a business account. The number varies by lender, by program, and by the strength of the file. Nobody should promise you a specific factor before the lender has reviewed the file.

For a sense of scale, one trade publication describes a standard 50% expense factor as a common example for self-employed borrowers with no W-2. Treat that as a market illustration, not a network term. Plenty of programs use other numbers.

The Formula, Step by Step

Qualifying income comes from five moves, always in this order.

1. Collect the statements. Lendmire’s network programs work from 12 months of business or personal statements.

2. Pick the account type. Business account: the factor applies. Personal account: no separate factor is typical, because the deposits are treated as already net of costs. Expect to show some proof the business operates.

3. Scrub the deposits. Strip out anything that is not earned revenue.

4. Average what remains across the statement period.

5. Apply the factor and your ownership share. A co-owner is credited only with their share of the business.

In one line: monthly qualifying income equals eligible deposits divided by months, times one minus the expense factor, times your ownership share.

Here is the swing, shown as an illustration and not a program term. Take 100 units of eligible deposits. At a 50% factor, 50 units count as income. At a 30% factor supported by a third party, 70 units count. Same deposits, 40% more income.

Then the lender tests the resulting income against the new housing payment and your other debts. Which loan size you can support is mostly a function of that final income figure.

Which Deposits Count Before the Factor Is Applied

Scrubbing happens before the factor, and the order matters. A dollar removed in step three never reaches step five.

The last row trips up 1099 earners who also hold a part-time W-2 job. If both land in one account, the wage dollars have to be stripped out, or they get counted twice, once as wages and once as business revenue.

The 1099 total on your tax forms and the deposit total on your statements rarely match. The IRS instructions for Form 1099-NEC describe Box 1 as nonemployee compensation for services. That is gross, before any cost. Smaller clients may issue no 1099 at all, and platform payouts may arrive net of fees. A deposit-based program captures all of it. A program that reads only 1099 totals misses whatever was never reported.

Business Statements or Personal Statements?

For a 1099 earner, the account choice often matters as much as the factor itself.

Personal statements can look like the better path, since no formula haircut is applied. The catch is documentation. Many programs want supplemental evidence that a real business sits behind the deposits, and they scrutinize personal accounts for non-income credits.

Switching accounts mid-history causes trouble. If income ran through a personal account for ten months and moved to a new business account two months ago, the lender has a mixed picture. A clean, consistent statement history is worth more than a clever routing change right before you apply.

Who Sets the Factor, and What Moves It

The lender sets it. The program sheet defines the default, the tiers if any exist, and the floor for any third-party ratio.

Drivers lenders commonly weigh include business type, number of employees, and whether the business has a physical location. A solo consultant with a laptop and a contractor with a crew, trucks, and a yard do not carry the same costs, and some programs reflect that.

Because each lender defines its own rules, the same deposits can return different income at different lenders. That is a feature of this lending lane, and it is where a broker earns the fee. Lendmire’s network spans many lenders, so the practical move is to run the same file against several program sheets. Compare the factor, the account-type rules, and the leverage limit side by side.

Leverage ties directly to this. On the cash-out side, a primary residence on bank statement documentation reaches up to 80% LTV with a fixed expense ratio, and up to 75% LTV when an accountant-prepared ratio is used. A second home on a cash-out tops out around 75% LTV, by loan size and credit. Those are cash-out ceilings. Purchase and rate-term loans on a primary residence run up to 90% LTV through select lenders, and stronger files earn the top of that range. Loan amounts generally run from $125,000 to $3,500,000, with reserves commonly around six months of the housing payment. All of this is subject to lender guidelines.

If your deposits are lumpy but your liquid assets are deep, an asset-depletion path is reviewed against those assets instead, up to about 80% LTV on a primary residence. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.

When a CPA Letter Helps, Hurts, or Does Nothing

A third-party expense ratio can replace the default. But it only helps when your real costs sit well below the default. The letter reports what is true, in either direction.

Programs that accept a third-party ratio still set a floor. The letter does not let the factor drop to zero, and your own signed statement of expenses does not substitute for a professional’s. The preparer should be a CPA, an enrolled agent, or a licensed tax preparer, and the ratio should reconcile to what you filed. A letter that contradicts your return invites questions.

A CPA letter is usually inexpensive next to the loan size, but it only pays back if the ratio really is lower than the default. Run your own numbers first.

Estimate Your Real Expense Ratio Before You Apply

Do this before you talk to any lender. It tells you which path to chase.

1. Pull your Schedule C or your business ledger for the same 12 months the statements cover.

2. Add up the real operating costs. Include what you actually paid out, not the paper deductions like depreciation.

3. Divide those costs by gross receipts. That is your real expense ratio.

4. Compare it to the lender’s default. If your ratio is clearly lower, a third-party ratio is worth pursuing. If it is about equal or higher, take the default and move on.

5. Check the deposits against receipts. Gross receipts should roughly match eligible deposits. A large gap needs an explanation before the lender asks.

Three Worked Profiles

These are illustrations of how the mechanics behave, not program terms. Each starts from 100 units of eligible annual deposits.

Profile one: lean-cost consultant. Real costs run low. At a default factor of 50%, 50 units count as income. With a supported ratio of 30%, 70 count. The letter earns its fee here.

Profile two: contractor with crew and equipment. Real costs run about 60%. A letter would support 60%, so only 40 units count, worse than the 50 from the default. Skip the letter and take the default, if the program allows.

Profile three: freelancer paid into one personal account. After scrubbing transfers and refunds, the remaining deposits count with no separate factor on most programs. The file’s friction is proof of the business and clean statements, not the formula.

Ownership share cuts all three. A 50% owner in the business is credited with half the result.

How the Factor Flows into DTI and Buying Power

The chain is simple. A higher factor lowers qualifying income. Lower income pushes up your debt-to-income ratio against the same housing payment. A higher ratio shrinks the loan size you can support, or pushes you toward a lower-leverage structure.

That is why a few points on the factor matter more than a small difference in credit score on many files. Deposits are the base of the equation, and the factor multiplies everything.

Other debts count too. Auto loans, student loans, and credit card minimums all sit in the ratio. Paying down a balance before you apply can help the file, subject to lender guidelines.

Where the General Rule Breaks

Several situations bend the simple formula.

• 1099-only programs. Some programs review the file on 1099 totals instead of deposits and still apply a factor. That is a program feature, not a universal rule. It misses income from clients who never issued a 1099.
• Loss years and falling income. If your return shows a loss, a preparer is unlikely to support a lean ratio. Expect the default.
• Seasonal income. A strong summer and weak winter average out over 12 months, but a lender will look at the trend. Declining months late in the history draw questions.
• Platform and gig payouts. Payouts that arrive net of platform fees can understate gross receipts. Reconcile them to the platform’s own year-end reports.
• P&L-only files. A profit-and-loss statement without bank statements is a different and usually narrower path.
• Mixed accounts. Business and personal money in one account makes the scrub harder and the file slower to review.

Occupancy Decides the Paperwork, and Sometimes the Whole Path

The property type decides which framework your file lives in.

An owner-occupied file, meaning a primary residence or second home, is a consumer mortgage, and the TRID disclosure rules apply. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is a business-purpose loan and is exempt from TRID. Keep those two straight when comparing programs.

Bank statement documentation is not a no-doc product. Federal rules still require a reasonable, good-faith repayment determination, with income verified through third-party records. The eCFR text of the ability-to-repay rule lists financial institution records among the records that can serve. That is why bank statements are a legitimate income document. The same rule prescribes no percentage haircut for business deposits. The 50% default, the lower tiers, and any floor on a third-party ratio are lender guideline choices.

For a rental purchase, check whether bank statements are even the right tool. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, so your personal deposits and the expense factor drop out of the calculation. Investment-property cash-out tops out around 75% LTV, and investment purchase leverage on bank statement documentation varies by lender. Investor-focused leverage questions belong on the DSCR side. Lendmire’s complete DSCR loans guide walks through that path.

Consumer bank statement loans on owner-occupied homes are arranged in 16 states, so confirm your state before building a plan around one.

Red Flags and the Document Checklist

Underwriters read statements line by line. These items draw questions.

• Overdrafts and NSF fees
• Large deposits with no source
• Months that swing wildly without explanation
• Ownership share that does not match the business filings
• Round-number transfers that look like loans

Gather these up front:

• Twelve consecutive months of statements, every page
• Proof the business exists, such as a license, registration, or website
• A third-party expense ratio, if you plan to use one
• Ownership documentation for any co-owned business
• Source letters for any large or unusual deposits
• Recent 1099s, if the program or your preparer wants them for reconciliation

A file with every page of every statement and a short explanation of odd deposits gives the reviewer fewer preventable gaps.

This article is general information and not legal or tax advice; tax treatment varies, so consult a qualified attorney or CPA about your own situation.

Next Step

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. Reach the team at 828-256-2183 or request a quote. Program details vary by lender, and nothing here is a commitment to lend.

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 tax returns, 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. Scotsman Guide, Rev Up the Engine for Non-QM Lending

2. IRS Instructions for Form 1099-MISC and 1099-NEC

3. eCFR, 12 CFR 1026.43 (Ability-to-Repay)