How Bank Statement Income Averaging Rules Work for a 1099 Contractor

The Quick Read: A lender totals the eligible deposits from your statements, removes transfers, loan proceeds and refunds, applies an expense factor to business accounts, adjusts for your ownership share, and divides by the number of months to reach one monthly qualifying income figure. That figure is subject to lender guidelines and then feeds a debt-to-income test.

• Only deposits that look like real business income count. Moves between your own accounts and loan proceeds come out.
• Business-account deposits are usually reduced by an expense factor. Personal-account deposits usually are not.
• A 12-month window rewards recent growth. A 24-month window smooths out seasonal swings.
• Averaging can hide a recent decline, so the trend in your deposits matters as much as the total.
• The same statements can show more income than a heavily written-off tax return does.

What Is Bank Statement Income Averaging?

Bank statement income averaging is a way to qualify on documented income under the applicable program, using deposits instead of tax-return net profit. The lender reads your account history, decides which credits are true business receipts, and converts them into a monthly average.

A 1099 contractor is a natural fit. Business write-offs can shrink the net profit on a Schedule C. Meanwhile, client payments land in your account at full value. Statements show that cash flow. A tax return reflects the deductions.

Lendmire is a mortgage broker that arranges these loans through select lenders in its wholesale network. Across that network, most programs follow the same broad logic. The details change from one lender to the next, and that is where contractors win or lose.

How Does Underwriting Turn Deposits Into Income?

Underwriting follows a repeatable sequence, though each lender sets its own rules at every step. Here is the order, with a contractor-specific note on each.

1. Pick the lookback window. Most files in the network use 12 consecutive months of statements. Some programs allow a 24-month window.

2. Pick the account type. You can document with business statements or personal statements. This choice changes the math more than anything else.

3. Screen every deposit. The underwriter strips out anything that is not business income. For a contractor, that usually means savings transfers, loan advances, refunds, and one-time windfalls.

4. Avoid double counting. If you submit both accounts, a transfer from business to personal appears twice. Only one side can count.

5. Apply the expense factor. Business-account deposits are reduced by a lender-set percentage. A CPA-prepared ratio can sometimes replace the default.

6. Apply ownership share, then average. The adjusted total is multiplied by your ownership percentage and divided by the number of months.

7. Compare to debt. The monthly figure goes into your debt-to-income ratio, along with credit and reserves.

No universal formula exists. Expense factors, window choices, and deposit exclusions are program choices. Nobody should promise a specific factor before a lender has reviewed the file.

A Worked Example With an Uneven Year

Here is an illustration using index points instead of dollars. Say a contractor’s twelve months of deposits total 100 points. Savings transfers and a loan advance make up 10 points. A client refund makes up 2 points. That leaves 88 eligible points.

Now add unevenness. Suppose one large project payment makes up 25 of those 88 points. A 12-month average spreads it across the year. If that payment is a one-off, an underwriter may question whether it will repeat. If the same work recurs every year, a longer window will tend to support it.

One dip month rarely hurts. A string of falling months does. The average can look healthy while the last quarter tells a different story, and underwriters read both.

Which Deposits Count for a Contractor?

Eligible deposits are the ones that clearly come from your contracting work. Treatment varies by lender, but the pattern below holds across most programs we place files with.

A deposit that matches an invoice is easy to defend. A deposit with no paper trail invites a question and sometimes an exclusion. A spouse’s pay or a family transfer landing in the same account comes out as well.

Personal or Business Statements?

Business statements usually get an expense factor. Personal statements usually do not, but every deposit must still show as business income. Neither is automatically better. The right choice depends on how clean the accounts are.

Many 1099 contractors have no entity. A personal account is fine in that case, as long as client payments are identifiable and separate from spouse income, transfers, and household deposits.

Mixing is the usual problem. When business and personal money share one account, the underwriter cannot attribute deposits with confidence. Expect explanations, exclusions, and a smaller average. A fix made before the lookback window begins is worth far more than one made after.

12 Months or 24 Months?

Pick the window that flatters the real trend. The table shows how each income profile tends to fare.

Network programs are built around 12 months of statements. Where a lender offers a 24-month option, it tends to help seasonal or lumpy earners more than growing ones. It is worth running both calculations before choosing a lender, since the same deposits can produce noticeably different results.

Where the Average Works Against You

Averaging is forgiving of single bad months but not of trends or concentration. Four situations deserve a close look.

• Declining income. Underwriters look at direction, not just the mean. Falling deposits draw extra scrutiny, and project-based earners feel it most.
• One dominant client. A single payer supplying most of your deposits can raise questions about continuity. Several clients spread the risk.
• Short self-employment history. Treatment varies. Some programs will consider a shorter history if you worked in the same field before.
• Heavy personal debt. Bank statement qualification is personal-income underwriting. Each financed property adds to your debt-to-income ratio, so an investor carrying several mortgages may run out of room.

The last point is the real flip. A contractor buying a rental may find a loan that qualifies the property’s rent against its payment more natural than a loan that qualifies the borrower’s deposits. Lendmire’s complete DSCR loans guide covers that property-level approach. Bank statement loans fit a primary or second home more naturally.

What the Federal Rule Does and Does Not Say

The federal verification rule sets a standard, not a formula. The CFPB’s Ability-to-Repay rule requires a lender to verify the income it relies on using reasonably reliable third-party records. The rule does not set a 12-month or 24-month window, an expense percentage, or an averaging method. Those are lender and investor program choices.

The CFPB’s small-entity compliance guide lists bank statements among acceptable evidence, alongside traditional personal-income documentation and payroll records. So a bank statement loan is not an undocumented loan. It documents income through a different record.

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. Lendmire’s consumer mortgage licensing covers 16 states, so availability depends on where the property sits.

Your 1099 forms are a separate question. A payer reports contractor payments on Form 1099-NEC, and the current reporting threshold is $2,000, up from $600. Small payments may therefore never generate a form. Some programs review the file on 1099s, and others use them to cross-check statements. In a statement-based file, the deposits carry the weight.

Program Figures on Bank Statement Files

These are typical ranges from select lenders in Lendmire’s wholesale network, subject to lender guidelines, credit, and property review.

• Documentation: 12 months of business or personal statements, with lender expense factors.
• Primary residence purchase or rate-term: up to 90% LTV. Stronger files earn the top of that range.
• Primary residence on asset depletion: up to 80% LTV.
• Owner-occupied cash-out (primary or second home): up to 80% LTV with a fixed expense ratio, and 75% when the file uses an accountant-prepared ratio, depending on loan size and credit.
• Investment-property cash-out: around 75% LTV. Investment purchases on bank statements vary by lender.
• Loan amounts and reserves: roughly $125,000 to $3,500,000, with about 6 months of reserves common.

The 90% figure applies to a primary-residence purchase or rate-term refinance only. Never read it as a cash-out or investment ceiling.

For more on the documentation side, see Lendmire’s piece How a 1099 Contractor Converts Deposits Into Bank Statement Income.

How to Prepare Before the Window Starts

Small habits change the average for the better, and none of them require inflating anything.

• Route all client payments into one account.
• Stop paying personal bills from the business account, and the reverse.
• Document large or unusual deposits as they happen.
• Avoid overdrafts and returned items.
• Ask a CPA early whether an expense letter would help.
• Compare the 12-month and 24-month math before choosing a lender.

Key Terms Defined

Lookback period: The span of consecutive months of statements the lender reviews.

Expense factor: The percentage a lender subtracts from business deposits to estimate operating costs.

Eligible deposit: A credit the lender accepts as genuine business income.

Qualifying income: The monthly figure left after exclusions, the expense factor, and averaging.

Ownership share: Your percentage of the business, applied to the adjusted deposits.

Next Step

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

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage brokerage built around DSCR investor lending, with programs available in 41 markets, including Washington, D.C. DSCR lenders commonly evaluate rental-income coverage instead of personal income paperwork — a practical fit for LLC-owned and multi-property investors. Terms vary by lender, property, leverage, and program. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB – 12 CFR 1026.43

2. CFPB ATR/QM Small Entity Compliance Guide

3. Taxpayers.net – 1099-NEC Threshold