How to Meet the Same-Account Rule on a 12 or 24 Month Bank Statement Loan

The Quick Read: Meeting the same-account rule means building your 12 or 24 month income average from one continuous account you own, or from a disclosed set of accounts the program accepts, with every credit explainable and no unexplained gaps in the statements. It is practitioner shorthand, not a codified rule, and each program sets its own version. A bank statement loan is reviewed on documented income under the applicable program, subject to lender guidelines.

• Pick the income account early and keep it clean for the whole lookback window.
• Transfers between your own accounts do not count as income. Only the account where money was first earned gets credit.
• Some programs take one account. Others combine several. Ask before you open or close anything.
• Switching banks mid-window creates a splice that some programs cannot use.
• If personal deposits are messy but the rental income is strong, a DSCR loan may be the cleaner path.

Most people first hit this on a file where the numbers look fine and the statements do not. The deposits are real. The paper trail is the problem. This piece walks through what underwriters are checking, how the rule plays out on 12 versus 24 months, where it breaks, and how to prep a file before you apply.

Key Terms Defined

Same account: The account, identified by owner and account number, that supplies the continuous deposit history used to average income.

Commingled account: An account where personal and business money mix, which forces the reviewer to separate what is income from what is a transfer.

Qualifying window: The 12 or 24 consecutive months of statements the income average is built from.

Expense factor: The percentage of business deposits the lender treats as operating cost before arriving at qualifying income. Each lender sets its own.

Eligible deposit: A credit that reflects earned income, as opposed to a transfer, loan proceeds, a refund, or a one-time asset sale.

What the Same-Account Rule Means and Why Underwriters Use It

The rule exists because averaging deposits only works if the deposits form one traceable stream. Underwriters want to see an income pattern, confirm the account belongs to the borrower or the borrower’s business, and make sure no dollar is counted twice.

Nobody publishes a formal “same-account rule.” Across the wholesale network, the idea shows up as three working expectations. First, the average comes from one continuous account or a disclosed set. Second, the borrower or an eligible business owns it. Third, deposits count where income lands, not where money was shuffled afterward.

There is also a regulatory reason behind the exclusions. A lender relying on deposits has to confirm they are the borrower’s income, and the CFPB’s small entity compliance guide says that an unidentified deposit fails that verification when no step is taken to confirm its source, since it could be something like loan proceeds. That is why underwriters pull loan proceeds and unsourced credits out of the average. The guide does not prescribe a same-account test. That part is program overlay.

How the Rule Works at 12 Months vs 24 Months

On most programs the rule is the same at both lengths: consecutive statements, no gaps, one owned account or an accepted set. What changes is how much history has to hold together and how a weak stretch affects the average.

Lender programs in the network generally start from 12 months of statements. A 24-month version is typically a program choice, often useful for seasonal income, where a full cycle shows up in the average. Longer is not automatically better. Say a business had a slow year, then a strong one. The 24-month average may land below the 12-month number. If the strong year stands on its own and the account is clean, 12 months is often the better fit.

The math is simple. Qualifying income equals eligible deposits, times ownership share, times one minus the expense factor, divided by the number of months. Scotsman Guide’s non-QM coverage describes the same frame: 12 to 24 months of personal or business statements, a standard expense factor with 50% given as an example, or a P&L or expense statement from a third-party tax professional instead. That 50% is an example, not a rule. Lenders set their own factors, and nothing here promises a specific one.

Personal, Business and Commingled Accounts

The account type decides what proof you need and whether an expense factor applies. Personal-account deposits generally avoid the factor but have to show a clear pattern of business income. Business accounts take the factor, which a third-party P&L or expense letter can sometimes replace.

Commingling is where files go sideways. When business money lands in a personal account, or personal money funds the business account, the reviewer has to untangle it by hand. Circular flow between the two can lead to a denial. Clean labeling helps: account numbers and ownership visible on every statement, plus a short written explanation of how money moves between accounts.

Some programs also ask for a couple of months of business statements to show activity when the file leans on a personal account. That varies by lender.

Multiple Accounts, Joint Accounts and Switching Banks

Whether you can use more than one account is a program-level variable. Some programs want one account for the full window. Others combine several. There is no universal count, so ask before you build the file around either assumption.

A decision list that works on most files:

• One owned account for the full window: the cleanest case. Submit every page, every month.
• Several accounts accepted: disclose all of them, submit full statements for each, and expect transfers between them to be excluded or netted.
• Program takes only one account: pick the account that carries the income and set the rest aside.
• Joint account: access and ownership have to line up with the borrower. A co-holder who is not on the loan may need to provide authorization.

Switching banks mid-window. A borrower who moves operating cash from Bank A to Bank B partway through creates a splice. A one-account program may not be able to use the file at all. A multi-account program can combine the two, as long as both banks’ statements cover the full window and transfers between them are removed so the same dollars are not counted twice.

One account per LLC. Investors who run each rental through its own entity and account hit a conflict. Asset protection says separate. A one-account program says consolidate. A bank statement lender reads the borrower’s income accounts, not the rent account of an LLC, so the entity accounts may not feed the average at all. Decide early which account is the income account. (Loans to LLC-titled borrowers are subject to lender program eligibility.)

Worked Scenarios

These are self-check examples. None includes a dollar figure, because the point is how the rule applies.

Scenario 1: the clean one-account file. A self-employed contractor deposits all receipts into one business account for the full window. Statements are complete, transfers are minimal. The rule is met. The expense factor then decides how much income survives.

Scenario 2: the mid-window bank move. A consultant moved operating cash to a new bank seven months in. A one-account program cannot use the file. A multi-account program can, if both banks’ statements are complete and the transfer between them is excluded. The fix is either a different program or waiting until the new account carries a full window.

Scenario 3: personal deposits of business income. A freelancer runs everything through a personal account. The rule is met if the statements show a clear pattern of business income. It fails if personal transfers and gifts blur the pattern. The fix is a written explanation and, going forward, a separate business account.

Scenario 4: the investor with five LLC accounts. Rent lands in separate entity accounts, and the borrower’s own income account is thin. A one-account program has little to work with. The practical question becomes whether the property cash flow is the stronger story. If it is, a DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, and the account-continuity analysis does not apply. Lendmire’s complete DSCR loans guide covers how that works.

How to Prepare a Clean File

Preparation is mostly deciding early and leaving things alone. The best habit is to fix commingling before the first statement of the window, not partway through.

1. Choose the income account. Pick the one that actually collects your money and plan to keep it for the whole window.

2. Stop moving money for show. Pushing funds into the business account right before applying muddies the history and can trigger exclusions.

3. Download every statement, every page. Account owner name and number should be visible on each one. Missing pages are a common cause of a pended file.

4. Scan for non-income credits. Flag transfers, loan proceeds, refunds and one-time asset sales so you can explain them before the reviewer asks.

5. Document transfers between your own accounts. A short note showing where each dollar came from and went keeps the same money from being counted twice.

6. Check for overdrafts and returned items. Reviewers read those, along with any declining trend in deposits.

7. Confirm the program’s account rule first. Ask whether it takes one account or several before you open or close anything.

Reserves on these files commonly run around six months of the housing payment, and loan sizes run roughly $125,000 to $3,500,000. Those are typical ranges from select wholesale-network programs, not commitments, and every file is underwritten individually.

Common Mistakes That Break the Rule

• Treating any deposit as income. Transfers, loan proceeds and one-off sales are generally excluded.
• Mixing and matching accounts month to month. The account set is fixed by the program.
• Assuming the 50% factor is a rule. It is an example. Each lender sets its own.
• Treating personal and business statements as interchangeable. The proof and expense treatment differ.
• Assuming no paperwork. Bank statement loans still require verification. They qualify on documented income under the applicable program, subject to lender guidelines.
• Applying bank statement logic to a DSCR file. DSCR looks at property rent coverage, not borrower deposits.

Fixing a History That Doesn’t Comply

You have two real options. Wait and build a clean window, or qualify on what already exists using a program that fits it.

Waiting costs time but gives the cleanest file. Open or designate the income account, route income through it, and let the 12 or 24 months run. A younger business may only fit the 12-month version, or a different documentation type such as a P&L.

Qualifying on what exists means finding a program that accepts your account set. Across the network, some lenders accept several accounts and some accept one. A few will start with 12 consecutive months and look at 24 if the file improves. Matching the file to the program is faster than forcing the file to fit.

Leverage depends on occupancy. On a primary residence, programs in the network go up to 90% LTV on a purchase or rate-term refinance. Owner-occupied cash-out on a primary or second home reaches up to 80% LTV with a fixed expense ratio, or 75% with an accountant-prepared ratio. Investment-property cash-out tops out around 75% LTV. Investment purchase leverage on bank-statement documentation varies by lender. An asset-depletion alternative reaches up to 80% LTV on a primary residence. All of this is subject to lender guidelines and credit.

Occupancy also sets the disclosure regime. An owner-occupied file 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. Consumer mortgage licensing for this lane covers 16 states.

Heavy write-offs, like depreciation and cost segregation, often leave taxable income low. Bank statement qualification reads cash flow instead, which is why investors with big deductions look at it. 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.

For a side-by-side view of how the two products fit different investors, see Lendmire’s page on DSCR versus bank statement loans for investors.

Lendmire is a broker arranging financing through select lenders in its wholesale network. This is not a commitment to lend.

About Lendmire

Lendmire (NMLS# 2371349) is a DSCR-focused mortgage broker that helps arrange investor financing across 41 markets, including Washington, D.C., through wholesale and investor-lending channels. DSCR eligibility is generally reviewed by the lender around the property’s rental income rather than personal income documentation, subject to lender guidelines — which works for self-employed investors, LLC operators, and portfolios above four financed properties. 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”