How to Document a Bank Statement or 1099 Loan as a Commission Earner

The Quick Read: You prove commission income with records a third party created, either 1099 forms or 12 months of bank statements, and a lender turns those records into a coverage figure after stripping out deposits that are not income and applying an expense factor.

• Commission income paid through W-2 payroll is documented the conventional way. Only 1099 or deposited commissions need these paths.
• The 1099 path measures annual forms. The bank statement path measures an average of monthly deposits, and a lender usually runs only one per file.
• Clean deposit habits matter more than any single document.
• Every deposit gets sorted. Transfers, loan proceeds and unexplained money are removed or must be explained in writing.
• Each file is reviewed on documented income under the applicable program, subject to lender guidelines, so details shift from lender to lender.

Two Ways to Document Commission Income

You have two alternative paths, and full documentation sits behind them as the baseline. The 1099 path reads the income your payers reported. The bank statement path reads what actually landed in your account. Neither one is a no-paperwork loan. Both ask for records you did not write yourself.

Across the wholesale network, the 1099 path suits commission earners with a simple setup. Think one brokerage or one carrier paying you directly. The bank statement path suits earners whose traditional personal-income documentation understates cash flow, whose income comes from several payers, or whose 1099s do not tell the whole story.

Some lenders will compare both methods on your file. Others make you pick. A loan officer who sees many programs can tell you which one produces the higher usable number before you commit.

Which Commission Earner Are You?

Your pay structure picks your path more than your job title does. Find yourself in the table below.

A mixed earner is workable. Your W-2 base is documented with paystubs. Your commission is documented through the 1099 or deposit path. Lenders want each stream to hold up on its own.

Why Your 1099 and Your Real Income Differ

Your 1099 and your deposits rarely match, and the gap is where most files stall. Say a brokerage reports 100 points of gross commission on your 1099. The brokerage kept 30 of those points as your split and fees before it paid you. Your deposits total 70.

This example uses illustrative percentages, not program terms.

A bank statement lender starts from the 70 that actually reached your account. It removes anything that is not income, then applies an expense factor if the account is a business account. A 1099 lender starts from the form, often with a standardized expense factor in place of full traditional personal-income documentation. The two can produce very different qualifying numbers from the same year of work.

Other mismatches are common. A payment made late in the year lands on next year’s 1099. A payer sends money from two entities. A reimbursement sits in your deposits but not on any form. Reconcile all of this before you apply. Underwriters hate surprises more than they hate low income.

How to Document a Bank Statement or 1099 Loan Step by Step

Build the file in this order and you will answer most questions before anyone asks them.

1. Choose the account. Decide whether your commissions land in a personal account or a business account. Use that one account consistently for the full statement window.

2. Gather the statement window. Most bank-statement programs in the network review 12 months. Download every page of every statement, including blank pages. Missing pages are a classic reason files bounce.

3. Sort the deposits. Mark each credit as commission income, transfer, refund, reimbursement, loan proceeds or unknown. The table in the next section shows how lenders treat each type.

4. Match deposits to your records. Line up deposits against your 1099s, commission statements and split sheets. Note anything that does not tie out.

5. Write the explanation letters. Any large or irregular deposit gets a short written explanation with a supporting document attached.

6. Add supporting letters. Depending on the program, that can mean a brokerage letter confirming your pay structure, a CPA-prepared expense letter, or proof of how long you have worked in the field.

If you take the 1099 path, swap steps two through four for the most recent one or two years of 1099s. If your latest form is stale, expect a request for year-to-date proof of income and recent statements that show the payer’s deposits.

The Document Checklist

A profit-and-loss statement helps only if a third-party tax professional prepared it. One you built yourself, or one your broker built for you, does not count as an independent record.

What Counts as a Deposit and What Gets Stripped

Not every dollar in your account is income. Lenders remove credits that do not come from earning commissions, and unexplained credits are the biggest swing factor in your final number.

Treat the unknown deposits as your first cleanup task. If a deposit cannot be tied to a source, assume the underwriter will exclude it.

Personal Account or Business Account?

Use the account where your commissions actually arrive. A business account usually means the lender applies an expense factor to the deposits before averaging, because business accounts carry business costs. A personal account often earns a lighter factor, but only if the deposits really are your commissions and the account is not a mix of everything.

The risky setup is commingling. If your commissions, rent, family transfers and spending all pass through one account, the sorting job gets harder and the number gets smaller. Many commission earners route payments into one dedicated account for several months before applying. It costs nothing and makes the file easier to read.

Where an accountant can prepare an expense ratio, some programs treat that ratio more favorably than the standard factor. For owner-occupied cash-out, for example, the maximum LTV is 75% when an accountant prepares the ratio, compared with up to 80% with a fixed expense ratio. Whether that helps depends on how heavy your real expenses are. Each lender sets its own factors, so no universal formula applies.

Seasonality, Slow Quarters and Timing

A 12-month statement window absorbs slow stretches. That is the practical reason this documentation exists. Commission income is lumpy, and an average smooths a strong quarter against a weak one.

A single slow stretch does not sink a file. A steady decline or an unexplained spike draws questions, so write the explanation before it is requested.

Use a three-month prep plan before you apply:

• Three months out: Pick the deposit account. Pull your commission statements and 1099s. Start a simple monthly deposit tracker.
• Two months out: Stop moving large sums between accounts. Resolve any deposit you cannot source. Ask your tax professional whether an expense letter or ratio would help.
• One month out: Download full statements, draft explanation letters and request any brokerage letter. Then send the package to a loan officer.

If you can choose when to apply, do it after a strong stretch rather than in the middle of a slow one. Do not delay a purchase for this alone, though. The window averages the whole year.

Why This Counts as Real Documentation

A common worry is that these loans are a loophole. They are not. For consumer-purpose mortgages, the CFPB’s Ability-to-Repay and Qualified Mortgage compliance guide explains that Dodd-Frank requires lenders to make a reasonable, good-faith determination that you can repay. A loan that falls outside the Qualified Mortgage box is called non-QM, and it still has to meet that standard. The records change. The verification does not.

Occupancy decides which rules and disclosures apply. An owner-occupied file, meaning a primary residence or second home, is a consumer mortgage, so standard consumer disclosures (TRID) 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 those disclosures. The two never mix on one file.

Bank-statement loans on rentals are business-purpose investor loans, so they are reviewed differently from a standard owner-occupied mortgage. The Federal Register’s final ATR rule says investment-purpose loans are treated as business-purpose loans. That is one reason a different route exists for rentals, covered below. Do not assume every investment-type loan qualifies as business-purpose. Whether a loan is business-purpose depends on its purpose, not simply the property type, and a house you plan to live in does not count.

Edge Cases Where the General Rule Bends

Stale 1099s. An older form means the lender wants current proof. Bring a year-to-date commission statement and recent statements showing the payer’s deposits.

A self-prepared P&L. It does not count as a third-party record. Have a tax professional prepare it.

A W-2 base plus 1099 commission. Both streams need support, and each is documented on its own path.

Large or unexplained deposits. They are excluded unless you document the source.

A rental purchase. Here you may not need personal income at all. Under a DSCR (debt service coverage ratio) loan, the file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. The complete DSCR loans guide explains how that route works. If the rental’s own income is strong, it can be the cleaner choice than documenting your deposits.

Commission through your own entity. Business statements apply, and an expense factor or CPA support usually enters the picture.

Leverage and Loan Terms to Expect

Programs vary by lender, so treat these as typical ranges across select lenders in the network.

• Primary residence purchase or rate-and-term refinance: up to 90% LTV on stronger files. LTV, or loan-to-value, is the loan balance as a percentage of the property’s value.
• Owner-occupied cash-out, primary residence or second home: up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio, depending on loan size and credit.
• Investment property cash-out: around 75% LTV.
• Investment property purchase: varies by lender. Investor-focused leverage guidance belongs on the DSCR side.
• Asset-depletion alternative: about 80% LTV on a primary residence, qualifying from liquid assets instead of deposits.
• Loan sizes: roughly $125,000 to $3,500,000, with reserves commonly around six months of the housing payment.

Loan term length follows each lender’s program sheet, so ask rather than assume. Consumer mortgage programs on this lane are offered in 16 states. Every file is underwritten individually, and nothing here is a commitment to lend. For a related look at how this documentation applies to a second home, see Lendmire’s piece How to Close a Second-Home Bank Statement Loan Fast as a 1099 Earner.

Common Mistakes and Red Flags

These are the mistakes that most often hurt a commission earner’s file:

• Sending statements with missing pages.
• Mixing personal and business activity in one account.
• Making large transfers in the months before applying.
• Leaving a spike or a drop unexplained.
• Submitting a P&L you prepared yourself.
• Assuming the 1099 total equals your deposits.
• Applying with a stale 1099 and no current proof.

Most of these cost you nothing to fix and a lot to ignore.

Sample Explanation Letter Outline

Keep it short and factual. A good letter has five parts:

1. Your name and the loan. One line identifying yourself and the file.

2. The deposit. State the date, the amount and the account.

3. The source. Say who sent the money and why, in plain terms.

4. The proof. List the attachment, such as a commission statement, closing statement or brokerage letter.

5. Whether it repeats. Say whether this is a one-time item or part of your normal pay.

Sign and date it. A letter without backup is just a claim.

Which Path Should You Ask For First?

Ask for the path that matches how your money actually arrives. If one payer reports most of your income on a 1099 and the form roughly matches your deposits, start with the 1099 path. If your income comes from several payers, your 1099s miss cash flow, or your write-offs shrink your reported earnings, start with bank statements. If you are buying a rental, ask also about DSCR, since the property’s income can carry the file.

Key Terms Defined

Bank statement loan: A mortgage where qualifying income comes from averaging deposits over a set window, usually 12 months, with an expense factor applied.

1099 loan: A mortgage that uses 1099 forms, often with a standardized expense factor, instead of full traditional income documentation.

Expense factor: The percentage a lender subtracts from deposits to estimate business costs. It varies by lender and account type.

Non-QM: A mortgage that falls outside the Qualified Mortgage box and is documented under its own program rules.

Seasoning of deposits: Deposits that have sat in your account long enough to show a consistent pattern.

DSCR: Debt service coverage ratio, meaning a rental’s income divided by its monthly obligations.

Next Step

Call 828-256-2183 or request a quote. Start by sending your most recent 1099, your last 12 months of statements and a short note on how you are paid.

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

For current guidelines and terms, see Lendmire’s bank statement loan programs page.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges bank statement, P&L-only, 1099-only and asset-based home financing in 16 states through wholesale lenders, on primary residences, second homes and investment properties. Every option is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB Ability-to-Repay and Qualified Mortgage Rule Compliance Guide

2. Federal Register: Ability-to-Repay and Qualified Mortgage Standards Under the Truth in Lending Act