How to Qualify for a Bank Statement Loan With One Account

The Quick Read: Qualifying with one account works when that account clearly holds your income and the deposits can be traced to real business activity. The lender averages the deposits over the statement window, removes transfers and one-time money, and applies an expense factor if the account is a business account. Here is what matters most:

• One account is allowed. A single account is an input to the standard deposit-to-income calculation, not a separate program.
• Account type sets the haircut. Business deposits usually take an expense factor. Personal deposits are usually read closer to net income, with tougher scrutiny of the source.
• Clean deposits beat big deposits. Transfers, refunds and loan proceeds get stripped out.
• Documentation is typically 12 months of statements, subject to lender guidelines.
• Leverage depends on occupancy. Owner-occupied files and rentals follow different rules, covered below.

You run your rentals, your side business and your groceries through one checking account. Is that a problem? Usually not. It is a reading problem for the underwriter, and you can make it easy to read.

What Does “One Account” Mean to an Underwriter?

An underwriter sees one account as a single data source with no cross-check. That is not disqualifying. It just means every deposit has to explain itself.

A bank statement loan lets a self-employed borrower qualify on documented income under the applicable program, subject to lender guidelines. Instead of traditional personal-income documentation, the lender studies your deposits. Across the wholesale network Lendmire works with, the standard window is 12 months of statements, business or personal.

It is not a no-paperwork loan. Lenders still have to verify the income they rely on using reasonably reliable third-party records, and bank statements are one of those records, per the CFPB’s small-entity compliance guide. The same guide treats self-employment as an employment type a lender may consider.

With two accounts, the underwriter can see money move from one to the other and confirm where it came from. With one, they can’t. So they look harder at the deposits themselves. That is the whole trade-off.

How Is Income Calculated From a Single Account?

The lender totals eligible deposits, adjusts for your ownership share, applies an expense factor if it is a business account, and divides by the number of months. The result is your monthly qualifying income.

Step by step:

1. Choose the window. Most programs in the network use 12 consecutive months. The trade press describes a range of 12 to 24 months, so a longer window is sometimes an option. Every page of every statement must come from the one account.

2. Classify the account. Business or personal. This choice drives the next steps.

3. Scrub the deposits. Remove transfers from your own accounts, loan proceeds, refunds and one-off windfalls.

4. Apply the expense factor (business account). The lender sets it. Scotsman Guide gives 50% as an example, not a rule, and notes a profit-and-loss statement or an expense statement from a tax professional can be used instead. Expense factors differ by lender, so never assume a number.

5. Average over the window. Seasonal swings smooth out across all the months.

6. Compare to the obligation. Qualifying income is weighed against your debts, with credit, assets and collateral reviewed alongside.

In plain terms: eligible deposits × ownership share × (1 − expense factor) ÷ months. For a personal account, the expense factor is usually skipped.

Here is a worked picture with labeled, illustrative inputs only. Say a business account shows 12 months of deposits, and the underwriter removes a few transfers and a refund. If the lender applies a 50% factor, half of the remaining average counts. If you can document a lower ratio with an accountant-prepared P&L, more counts. Without that proof, the file falls back to the default.

Which Deposits Count and Which Don’t?

Deposits that come from customers, tenants and clients for real work count. Money that merely moved around does not. Here is how underwriters typically treat each type.

Treatment follows individual lender guidelines, so expect variation.

With one account, every transfer in is suspect. There is no second account to show the money’s origin. Deposits should also match the business. A salon, for example, should show many small deposits, not round five-figure amounts. Round, irregular lumps invite questions.

Red Flags in a One-Account File (and the Fix)

Commingling is the main risk. Mixing personal and business money is common, and it makes revenue hard to separate from transfers.

Personal spending out of the account is not the problem. Unexplained money in is.

Should You Keep One Account or Open a Second?

If your one account is clearly the income account, keep it. If personal and business money run through it unpredictably, open a business account now and route revenue there.

That matches what brokers see: one account is workable, and separation helps the reader of your file.

The cost of switching is time. A new account has to build its own statement history, so a mid-stream move can restart the clock on your window. The decision usually looks like this:

• Deposits already clean and traceable: keep the account.
• Heavy commingling and a window not yet started: open a second account, then build the history.
• Already deep into the window: don’t close or switch accounts partway through. Finish the window and talk to your broker first.

Special Situations

Shared account with a spouse or partner. Deposits from someone else’s income won’t count as yours. You will need to show which deposits are yours, and the other person’s involvement may need documenting. Lendmire’s piece How to Qualify for a Bank Statement Loan With a Shared Account covers that setup in detail.

Platform payouts. Money from payment processors or marketplaces should be traceable to the platform’s own reports. Keep those reports handy.

Seasonal or lumpy deposits. Averaging over the whole window helps. A longer window can help more if your best months fall outside the most recent 12.

Pass-through money. Cash that comes in and goes straight out, like a contractor paying subs, may be excluded or discounted.

Sole proprietor rentals. Many investors run rent through one personal account. That is workable when the deposits are consistent and clearly rental or business income.

Leverage: What Occupancy Decides

Occupancy changes the leverage and the rules. Keep these separate.

• Primary residence, purchase or rate-term: up to 90% LTV through select lenders. Stronger files earn the top of the range.
• Owner-occupied cash-out (primary 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: tops out around 75% LTV.
• Investment purchase: varies by lender on bank statement documentation.
• Asset depletion alternative: qualifying from liquid assets runs to about 80% LTV on a primary residence.

Loan sizes typically run from $125,000 to $3,500,000, and reserves commonly sit around six months of the housing payment. Everything is subject to lender guidelines and individual underwriting.

Occupancy also decides the disclosure regime. An owner-occupied file is a consumer mortgage, and TRID disclosures apply. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is business-purpose and exempt from TRID. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income. Consumer mortgage licensing for this lane covers 16 states.

Bank Statement vs. DSCR: Which Fits Your One-Account File?

A bank statement loan underwrites you. A DSCR loan reviews the property’s rental income. If your deposits tell the stronger story, bank statements fit. If the rent is the stronger story, or you don’t want personal income reviewed, DSCR may fit better.

Heavy depreciation and write-offs can shrink the income on a tax return while deposits show actual cash flow. That is why self-employed investors turn to this route. For rental purchases, the complete DSCR loans guide explains how qualification runs on the property’s income instead. Programs below a 1.00 coverage ratio are available through select lenders in the network, but leverage and terms adjust. Tax treatment varies; consult a qualified professional.

Key Terms Defined

Bank statement loan: a non-QM mortgage that qualifies a self-employed borrower on documented deposits rather than traditional personal-income documentation.

Expense factor: the percentage of business deposits the lender assumes went to costs, so only the remainder counts as income.

Commingling: mixing personal and business money in the same account.

Non-QM: a mortgage outside the standard qualified-mortgage box, underwritten to its own program guidelines.

Seasoning of deposits: how long a consistent deposit pattern has existed in the account.

Common Mistakes

• Moving money between accounts mid-window.
• Making big, unexplained deposits right before applying.
• Closing the account partway through the statement period.
• Assuming a lower expense ratio is available just for asking. It needs third-party proof.
• Treating 50% as a federal rule. It is a lender default.
• Sending partial statements. Every page counts.

Pre-Application Checklist

1. Pull 12 consecutive months of statements, every page.

2. Mark each deposit as client, rent, transfer, refund or other.

3. Gather invoices or platform reports for large deposits.

4. Ask your accountant about a P&L, which may support a lower expense ratio.

5. Check for overdrafts and returned items; write a short explanation for any.

6. Don’t open, close or move accounts without checking first.

Reach the team at 828-256-2183 or request a quote at Lendmire’s quote page. Clean deposits beat clever structure: the borrowers who sail through are the ones whose single account tells one simple story.

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 ATR/QM Small Entity Compliance Guide

2. Scotsman Guide, “Rev Up the Engine for Non-QM Lending”