How the Bank Statement Loan Income Formula Works for a 1099 Contractor or Consultant

The Quick Read: A bank statement loan turns a 1099 contractor’s deposits into monthly income by adding up eligible deposits across the statement window, removing money that is not earnings, applying an expense factor on business accounts, adjusting for ownership share, and dividing by the months reviewed. The result is then compared against your monthly debts. The lender’s program sets the expense factor, not you.

• Only real earnings count. Transfers between your own accounts, loan proceeds and refunds come out first.
• Personal statements generally carry no expense factor, while business statements do.
• The expense factor can be a flat default or a figure backed by an accountant-prepared ratio or profit-and-loss statement.
• Your qualifying income is only half the test. Your other monthly debts decide how much house the number supports.

If you invoice clients and your tax return looks small, this formula exists for you. Here is how it works from the first deposit to the final number.

Why Does a Contractor’s Income Look Small on Paper?

A tax return reports profit after expenses. A consultant who deducts a home office, software, travel, a vehicle and health insurance can show modest net income while still depositing healthy sums every month. A traditional lender looks at the net figure and stops there.

A bank statement loan starts from the cash that actually arrived. It asks what came in, what was real earnings, and what it likely cost to earn it. That question suits 1099 work, where clients pay by invoice and nobody withholds anything.

This is documented-income lending. The loan is reviewed on documented income under the applicable program, subject to lender guidelines. It is not a shortcut around documentation. You replace traditional personal-income documentation with a different, deposit-based paper trail.

Key Terms Defined

Expense factor: The percentage of business deposits the lender treats as the cost of running the business, subtracted before income is counted.

Eligible deposits: Deposits that represent real, repeatable earnings, after transfers, loan proceeds, refunds and one-time windfalls are removed.

Lookback period: The number of months of statements the lender averages. Programs generally use 12 or 24 months.

Ownership share: Your percentage of the business. If you own half, only half of the business’s qualifying income is yours.

DTI (debt-to-income ratio): Your total monthly obligations divided by your qualifying monthly income.

1099-NEC: The tax form a client sends a non-employee for payments made for services.

Qualifying income: The single monthly number the lender uses to decide how large a payment you can carry.

The Formula in Six Steps

Lenders word their guidelines differently. The structure underneath stays the same across most programs Lendmire places files with. Treat this as the general approach, since each lender’s program sheet controls the details.

1. Pick the statement window. Programs use 12 or 24 months. The programs in Lendmire’s network typically ask for 12 months of business or personal statements.

2. Choose the account type. Personal statements and business statements are treated differently. Which one you submit depends on where your client payments actually land.

3. Scrub the deposits. Remove anything that is not income, such as transfers between your accounts, loan proceeds, refunds and one-off windfalls.

4. Apply the expense factor. On business accounts, the lender subtracts a percentage for operating costs. Personal accounts generally skip this step.

5. Adjust for ownership and divide. Multiply by your ownership share, then divide by the number of months reviewed.

6. Run the DTI test. Compare the new housing obligation plus your existing debts against the resulting monthly income.

Written as one line, it reads like this: eligible deposits, times one minus the expense factor, times ownership share, divided by months reviewed, equals qualifying monthly income. For personal accounts, drop the expense factor term.

Personal or Business Statements?

The account that receives your client payments usually decides the route. A sole proprietor often deposits everything into a personal account. A consultant with an LLC may run payments through a business account.

Personal statements can produce a higher number because no overhead is subtracted. Lenders know that, so they look harder at what the deposits really are. They usually want proof that a working business sits behind the money.

Business statements get the expense factor, but they come with an advantage. If your real overhead is low, an accountant-prepared ratio may replace a higher default.

A Consultant’s Year, Worked Through

The numbers below are modeled index points, not dollars. They exist only to show the arithmetic. Real programs differ.

Picture a consultant with five clients, all paying into one business account. Over 12 months, deposits total 1,400 index points. The lender sorts them.

Say the transfers, loan proceeds and refunds total 200 points. Eligible deposits are then 1,200. Using the 50% flat factor that a Scotsman Guide trade-press piece on non-QM lending gives as its example, income after expenses is 600. Ownership is 100%, so nothing changes. Divided by 12 months, qualifying income is 50 points a month.

That 50% is one published example. It is not a universal number and not a Lendmire program figure. The lender’s own program sheet sets the factor for your file.

Now run the personal-account version of the same consultant. If the same 1,200 eligible points sat in a personal account with no expense factor, the monthly result would be 100. That gap explains why lenders scrutinize personal accounts so closely.

What Changes in an Uneven Year?

Assume your income grew. The first 12 months averaged 40 points a month after the expense factor, and the most recent 12 averaged 60. A 12-month window credits you with 60. A 24-month window credits you with 50.

Flip the story for a declining consultant. A 12-month window shows the lower, recent figure. A 24-month window can look kinder, but many underwriters will weigh the downward trend regardless. Which window applies is set by the program, so confirm it before you choose a lender.

What if You Own Only Part of the Business?

Suppose you own half of a two-partner consulting LLC. The business’s qualifying income is 100 points a month. Your share is 50. Lenders generally want documentation of your ownership percentage, and some programs set a minimum ownership level.

Where Does the Expense Factor Come From?

The program sets it. You do not pick it. No federal formula exists, and every non-QM program writes its own guidelines. That is why you will see different percentages on different lenders’ pages, and why no single number is correct.

Across Lendmire’s wholesale network, the usual routes are these:

• A flat default factor. Simple, and often the most conservative.
• An accountant-prepared expense ratio. A CPA or tax professional documents your real overhead, which can help a consultant with few costs.
• A profit-and-loss statement. A third party, not you, generally has to prepare or review it. The CFPB’s compliance guide on income verification draws the same line for loans it covers: a P&L counts when an outside professional prepared or reviewed it.

A self-prepared P&L usually will not carry the same weight. If your real costs are well below the default, the accountant route is worth a conversation before you apply.

From Qualifying Income to What You Can Buy

Return to the 50-point consultant. Suppose the new housing obligation plus your other monthly debts add up to 23 points. Your DTI is 23 divided by 50, or 46%. Lenders set their own DTI limits by program, credit and loan size, so the same file can pass in one program and miss in another.

Leverage depends on how you will use the property. These are typical ranges from select lenders in Lendmire’s network, subject to lender guidelines:

• Primary residence, purchase or rate-and-term refinance: up to 90% LTV on stronger files. LTV is loan-to-value, the loan divided by the property’s value.
• Primary residence, asset-depletion alternative: up to about 80% LTV. This path is reviewed against liquid assets instead of deposits.
• Owner-occupied cash-out (primary residence or second home): up to 80% LTV, never the 90% purchase ceiling.
• Investment-property cash-out: tops out around 75% LTV.
• Investment-property purchase on bank statement documentation: varies by lender, so there is no standard figure to quote.

Loan sizes generally run from $125,000 to $3,500,000, and lenders commonly look for about six months of reserves against the housing payment. Credit profile, loan size and property type all move these ranges.

Does the Property Type Change the Rules?

Yes. Occupancy decides which regime governs the file, and that shapes how strictly your income is verified.

An owner-occupied purchase or cash-out is a consumer mortgage, and consumer disclosure rules (TRID) apply. For loans like these, the lender must verify income with reasonably reliable third-party records. Your own statement of what you earn does not count. Bank statements fit that standard because a bank, not you, produced them.

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. The CFPB’s Regulation Z exemption text deems credit to acquire, improve or maintain non-owner-occupied rental property business-purpose. Exempt does not mean unreviewed. The lender still underwrites the file under its own guidelines.

Where the Formula Breaks Down

The six steps hold for most files. These cases bend them.

• Mixed accounts. Personal and business money in one account blurs what counts as income. Many lenders will not accept commingled accounts, and policy varies by program.
• Several accounts. Each account typically needs its own review, which adds sorting work.
• Income that never hit a 1099. Separate 1099-based programs add up the amounts on your 1099 forms instead of your deposits. They can miss cash you earned without a form.
• A short self-employment history. Programs generally want a track record. A brand-new contractor should confirm the minimum before applying. Lendmire’s piece Does Switching to 1099 Reset Your Bank Statement Income History? covers that scenario.
• Declining income. A downward trend can lower the number or prompt questions, even when the averaging math looks fine.
• Large unexplained deposits. An unexplained deposit may be excluded, or it may trigger a request for a letter and documents.

Bank Statements, 1099 Forms, or DSCR?

A bank statement loan tests your personal income, so your personal debts matter. A DSCR loan works differently. DSCR means debt service coverage ratio, and it measures whether a rental’s income covers its own payment. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.

If your DTI is strained by other debts, the DSCR route avoids personal income entirely, which can matter for a contractor with a heavy debt load. Lendmire’s comparison of DSCR loans and bank statement loans for investors goes deeper. Programs below 1.00 coverage are available through select lenders in the network, though leverage and terms adjust. The complete DSCR loans guide covers the full rental-side picture.

Mistakes That Shrink Your Number

• Running client money through personal and business accounts at random. Pick one home for client payments well before you apply.
• Moving savings into the account to pad deposits. Transfers are removed, and they invite questions.
• Skipping the accountant conversation. If your overhead is genuinely low, a documented ratio may beat the default.
• Ignoring the debt side. A strong qualifying income can still miss if monthly obligations are heavy.
• Submitting messy statements. Unlabeled deposits cost time.

What the Decision Looks Like in Practice

Start with the property. For a home you will live in, the bank statement route may fit well. For a pure rental, compare it against DSCR, since rental income may carry the file without your personal income.

Then pick your account and your window. Gather an accountant-prepared ratio if your overhead is low. Clean up deposit labels before you share statements.

This article is general information, not legal or tax advice. Tax treatment varies; consult a qualified professional, such as an attorney or CPA, about your own situation.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage broker licensed for consumer lending in 16 states. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Scotsman Guide: trade-press coverage of non-QM bank statement lending

2. CFPB: Ability-to-Repay and Qualified Mortgage Small Entity Compliance Guide

3. CFPB: Regulation Z, 12 CFR 1026.3, Exempt transactions