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Bank Statement Loan Calculator · Self-Employed Mortgage

See your qualifying income and max loan amount — on bank statements, not tax returns.

Mbanc's actual Non-QM underwriting math, run on inputs you type in. No uploads, no credit pull, no tax returns. The same deposit factor, LTV grid, and DTI ceiling your Principal Banker would use on a real file — in under 30 seconds.

8% assumed rate · 30-yr fixed50% DTI ceilingFICO 660+Loans $125K–$3MNMLS #38232
The Mbanc calculator

One calculator. Four ways you earn. One real number.

Pick the tab that matches how you earn. Get a real estimate in 30 seconds — built on the same Non-QM math our Principal Bankers use when you call. No tax returns, no uploads, no credit pull.

How the math works

Two ways Mbanc turns deposits into qualifying income.

Bank statement income is calculated two ways depending on how you document your business expenses. The calculator above uses Method 1 (fixed 50% expense factor) by default. A Principal Banker can route you to Method 2 (CPA-attested expense letter) for a higher qualifying number if your CPA can provide it.

01

Method 1 · Fixed 50% expense factor Default

The standard path for business bank statements. Mbanc takes total deposits, multiplies by your ownership percentage, and reduces by a fixed 50% expense factor to estimate your true business income.

Best for: Most self-employed borrowers. No CPA letter required.

Qualifying income = Total deposits × ownership% × 50% ÷ months
02

Method 2 · CPA expense letter

If your CPA, Enrolled Agent, or licensed tax preparer provides a signed expense ratio letter attesting to your actual business expenses, that ratio replaces the default 50% — with a 10% floor.

Best for: Service businesses (consulting, professional services) where actual overhead is below 50%.

Qualifying income = Total deposits × ownership% × (1 − CPA-stated factor) ÷ months
Plain-English explainer

What a bank statement loan actually is.

A bank statement loan is a self-employed mortgage that qualifies you on the cash flow your business actually generates — not the income left over after tax deductions on your 1040. For business owners, 1099 earners, and high-net-worth borrowers, this is often the difference between qualifying for a mortgage that matches the home you want and being told "no" by a bank that can't read how you actually earn.

The mechanics are straightforward. Mbanc reviews 12 or 24 months of personal or business bank statements, identifies eligible deposits, and applies an expense factor to estimate your real net income. The result is your qualifying monthly income. That income then has to clear a debt-to-income (DTI) ceiling of 50%, and the loan size has to fit within Mbanc's LTV grid based on your credit score and the property value.

"The big banks weren't saying no because these borrowers couldn't pay. They were saying no because the math was the wrong shape for their model. The deals were good. The income was real. The system just wasn't built to read it. So we built one that does."

— Mayer Dallal, Managing Director, Mbanc

Why the 50% expense factor exists. When a bank looks at your tax return, your taxable income is already net of every legitimate business expense you wrote off — vehicle depreciation, home office, equipment, payroll, the whole list. Smart tax strategy compresses your taxable income. That's good for taxes; brutal for mortgage qualification at conventional banks. Mbanc's 50% expense factor is a standardized estimate that adds back a normal slice of business overhead — closer to your actual cash flow than your tax return shows.

The three things that determine your maximum loan amount:

  • Your qualifying income — calculated from deposits as described above. Sets the DTI-based ceiling.
  • Your LTV cap — driven by credit score, loan size, property type, and loan purpose. At 720+ FICO on a primary purchase, Mbanc lends up to 85% LTV on loans up to $1.5M.
  • Your reserves — typically 3 months of PITIA (principal, interest, taxes, insurance, HOA) on loans under $1M, scaling up to 9 months on loans over $1.5M.

Your actual max loan amount is the lower of the DTI-based ceiling and the LTV-based ceiling. The calculator above shows both, side by side. For most Mbanc borrowers, the LTV cap is the binding constraint — Non-QM income calculations typically produce enough qualifying income that DTI is comfortable. But the calculator flags any case where DTI tightens, so there are no surprises later.

About the 8% rate this calculator uses. The Non-QM mortgage market moves with broader rate conditions, and over the last few weeks, rates have moved up roughly three-quarters of a percentage point. Rather than anchor to a specific rate that may be stale in a week, this calculator uses a flat 8% assumption — conservative enough that your real rate, determined at full underwriting, is typically lower. If you qualify at 8%, you qualify at the rate you'll actually get. If the math tightens at 8%, your Principal Banker can re-run the file at today's actual rate and often finds the headroom.

Ready to run real numbers?

A Principal Banker will translate this into a real approval — in 60 seconds.

Plain answers

Frequently asked.

Bank Statement questions answered without jargon — the way a Principal Banker would walk you through them on a call.

Call a Banker → (844) 918-1886
For personal bank statements, qualifying income equals 100% of business-related deposits divided by 12 or 24 months — no expense factor is applied. For business bank statements, qualifying income equals total deposits multiplied by the borrower's ownership percentage and reduced by a 50% expense factor, divided by 12 or 24 months. A CPA, Enrolled Agent, or licensed tax preparer can provide an expense ratio letter to lower that factor (minimum 10%), which produces higher qualifying income.
Mbanc's bank statement program accepts credit scores down to 660. At 720 and above, you have full access to the highest LTV tier (up to 85% on primary purchases). At 700–719, the maximum LTV is 80%. At 680–699, the maximum LTV is 80% for purchase and rate/term, 75% for cash-out. At 660–679, the maximum LTV is 70% across the board.
Up to $3 million on Mbanc's core Non-QM bank statement program, subject to LTV overlays at higher loan sizes. Loans over $2 million require a minimum 680 credit score. Loans over $2.5 million are capped at 75% LTV. Loans under $150,000 are capped at 80% LTV.
No. The calculator works entirely from inputs you type in — average monthly deposits, credit score range, property value, and a few other numbers. No documents required at the calculator stage. You provide actual bank statements only when a Principal Banker is engaged after the QuickQual, and only directly to Mbanc — never uploaded to a public form.
The standard maximum debt-to-income ratio is 50%. First-time homebuyers are capped at 45%. Most self-employed borrowers comfortably clear DTI because Non-QM income calculations (Method 1's 50% expense factor, or a CPA-attested expense letter) typically produce significantly higher qualifying income than a tax return would show.
Non-QM rates move regularly with broader market conditions. Rather than show a rate that may be stale next week, we use a conservative 8% buffer. If your loan qualifies at 8%, it qualifies at any rate the actual Non-QM market is offering today — and your real rate will typically be lower. This protects you from "the calculator said 7.5% but my actual rate is 8.25%" expectation gaps. Your real rate is locked at full underwriting by a Principal Banker.
Both are accepted, and the choice doesn't change your maximum LTV, qualifying-income calculation method, or DTI ceiling. The majority of Mbanc bank statement borrowers use 12 months. Use 24 months if you want the underwriter to see a longer track record — useful for borrowers with seasonal income or businesses that have grown recently. The qualifying-income formula is the same either way: total deposits multiplied by ownership percentage and the 50% expense factor, divided by the number of months.
No. The 8% rate is a conservative buffer. Your actual rate is determined at full underwriting and is often lower than 8% in the current Non-QM market. A lower actual rate produces a lower monthly payment, which expands DTI headroom. A Principal Banker can also explore adjusting down payment, loan amount, or income calculation method (Method 1 with 50% factor vs Method 2 with a CPA letter) to clear DTI. The calculator's "Edge of our ceiling" badge is a signal to have a conversation, not a rejection.

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