How a Sole Proprietor Documents Statements for a Jumbo Bank Statement Loan

The Quick Read: A sole proprietor documents statements for a jumbo bank statement loan by submitting 12 consecutive months of complete personal or business statements, then showing that the deposits are real business revenue. The lender averages eligible deposits, applies an expense factor, and treats the result as qualifying income. This is a different way to document income, not an absence of documentation.

• Plan on 12 months of full statements, every page, from one clearly identified account type.
• Deposits are screened. Transfers, refunds, loan proceeds and one-time asset sales usually come out.
• Business statements get an expense factor. Personal statements are scrutinized more closely for source.
• A CPA or tax-preparer letter may support a lower expense ratio, only where the program accepts it.
• Owner-occupied primary-residence files reach up to 90% LTV on a purchase or rate-term refinance through select lenders, subject to lender guidelines.

Lendmire is a mortgage broker. It arranges these loans through select lenders in its wholesale network, and each file is underwritten individually. The sections below walk through the package the way an underwriter reads it.

What This Article Covers (and What It Doesn’t)

This piece is about the mortgage file. It is not about the “sole proprietor statement” form some agencies ask for, and it is not about a sole proprietor’s own financial statements in an accounting course. If you are self-employed and want to buy or refinance a larger home using deposits instead of tax-return income, you are in the right place.

Key Terms Defined

Bank statement loan: A non-QM mortgage that is reviewed around documented income taken from averaged bank deposits, under the applicable program and subject to lender guidelines.

Qualifying deposit: A deposit the underwriter accepts as business revenue, as opposed to a transfer, refund or loan.

Expense factor: The share of business deposits the lender treats as operating cost before counting the rest as income.

Letter of explanation: A short written note that explains an unusual deposit, gap or name mismatch in the statements.

Jumbo: A size label for a loan above the conforming limit. It describes the amount, not the documentation method.

Which Account Should a Sole Proprietor Submit?

Most sole proprietors submit whichever account the business money actually flows through. Business statements show gross revenue, so lenders cut them with an expense factor. Personal statements show money that has already been through the business, so programs often apply a lighter factor or none, but they ask harder questions about where each deposit came from.

A sole proprietor often has one commingled account, since no separate entity exists. That is common, and it is workable. The job is to show which deposits are customer payments.

Here’s the catch with using both a business and a personal account. Draws from the business account land in the personal one, so counting both can count the same money twice. Across the programs in a broker’s network, most want the averaging to come from one account, and some allow several. Pick the account that tells the cleanest story, and ask before assuming a second account adds income.

The Document Package

Underwriters read the package as a whole. A thin or inconsistent piece slows the review more than a bad number does.

Statements should be consecutive, show the account holder’s name, and include every page with running balances. Skipped pages are a common reason a file stalls.

For proof of business, a sole proprietor with no entity filing can use a DBA registration, EIN confirmation, business license, client contracts, or a letter from a tax preparer. Programs commonly look for around two years of self-employment history. Some accept less when you worked in the same field before, subject to lender guidelines.

How Do Deposits Become Qualifying Income?

Underwriting follows a repeatable sequence. The lender takes eligible deposits across the statement window, applies any expense factor, and divides by the number of months. A sole proprietor owns 100% of the business, so there is no ownership-share adjustment. That is a real difference from partners.

1. Screen the deposits. Transfers between your own accounts, loan proceeds, refunds and one-time asset sales are stripped out. Large spikes may need an invoice or contract.

2. Apply the account treatment. Business deposits take an expense factor. Personal deposits take a lighter one or none, with closer source review.

3. Consider a documented lower ratio. Some programs accept an accountant-prepared expense ratio instead of the default factor. Unsupported claims fall back to the default.

4. Average over the window. Qualifying income is the eligible total after the factor, divided by 12.

5. Run the rest of the file. Income still goes through debt-to-income, credit, assets and reserves.

No regulator sets the expense factor. It is a lender or investor guideline choice, and it varies by program, so treat any single percentage you read online as one example, not a rule. The factor, more than the raw deposit total, usually drives how much you can borrow.

A worked comparison, in ratios only: picture a sole proprietor whose business account and personal account hold similar total deposits. On the business account, the factor trims the income by a meaningful share before averaging. On the personal account, if the program applies a lighter treatment and every deposit is traceable, qualifying income can come out higher. But if a third of those personal deposits are transfers the borrower can’t document, the advantage disappears. Clean sourcing beats a bigger gross number.

Preparing Your Statements Before You Apply

Statement hygiene is a planning step, not a last-minute one. Start well before you write an offer.

• Separate business and personal activity where you can.
• Label transfers between your own accounts in the memo line or keep a simple log.
• Keep overdraft and NSF activity down. Repeated items raise questions.
• Save invoices or contracts behind any unusually large deposit.
• Check every page for the account holder’s name and running balance.
• Compare your tax filings to your deposits. If they differ, explain why before the underwriter asks.

A letter of explanation should be short and plain. State what the deposit or gap was, the date and amount, where the money came from, and attach the supporting paper. Three to five sentences is usually enough.

Why Jumbo Changes the File

Jumbo is a threshold, not a product. It means the loan exceeds the conforming limit for the county and unit count. For 2026, FHFA set the baseline one-unit limit at $832,750, with a high-cost ceiling of $1,249,125. A bank statement loan is itself a non-agency product, so those limits only define the label.

What jumbo size changes in practice is scrutiny. Network programs here run roughly $125,000 to $3,500,000, with reserves commonly around six months of the housing payment. Larger amounts usually mean heavier asset documentation and a closer look at the deposit trend. Some lenders prefer a longer statement window at the top of the range, so ask early. Lendmire’s piece Can You Use 12 Months of Statements on a Super Jumbo Bank Statement Loan? covers that question.

Leverage depends on the occupancy:

Investment purchase leverage on bank statements varies by lender, so treat it as a case-by-case question.

Where the General Rule Breaks

Commingled accounts. Simple to submit, harder to defend. Expect requests that tie deposits to customers.

Seasonal income. Lenders smooth over the whole window, so a strong season helps, but slow months count too.

Declining income. A good average can still lose to a falling trend. Recent months carry weight.

Under two years in business. Some programs accept a shorter history if you worked in the same field.

Rising income. Recent deposits capture it, but only to the extent the window includes them.

Rental purchases. Occupancy decides the regime. An owner-occupied file is a consumer mortgage. A loan on a non-owner-occupied rental is business-purpose under the CFPB’s exempt-transaction commentary, with a carve-out if you expect to occupy the home more than 14 days in the coming year. A pure rental may fit a DSCR structure instead. Read Lendmire’s complete DSCR loans guide for how property-income qualification works. DSCR isn’t automatically better. A thin-rent property can qualify more cleanly on strong deposits.

For owner-occupied loans, the lender must verify income with reasonably reliable third-party records. That is why statements, not a bare statement of income, carry the file.

Red Flags and Fixes

When to Start

Begin at least a few months before you apply. That gives time to clean up transfers, gather the business proof, and request an accountant letter if you plan to use one. While the file is in review, keep depositing normally, and avoid moving large sums between accounts.

Bank statement documentation is one way to qualify. 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. Consumer mortgage licensing for this lane covers 16 states. Lendmire’s retail footprint is separate from the 41 markets for business-purpose investor loans.

Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.

About Lendmire

A DSCR-focused mortgage broker, Lendmire (NMLS# 2371349) places investor financing across 41 markets — 40 states plus Washington, D.C. — with DSCR eligibility generally reviewed by the lender on property cash flow instead of tax returns, subject to lender guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in 2025 and 2026.

References

1. Orrick – FHFA 2026 conforming loan limits

2. CFPB – 1026.3 Exempt transactions

3. eCFR – 12 CFR 1026.43