How Much Can You Borrow on a Bank Statement HELOC for a Portfolio Down Payment?

The Quick Read: It depends on three limits at once: how much equity the lender lets you borrow against, the cap on line size, and your own credit and debt load. On an investment property, the wholesale programs Lendmire works with top out at 70% combined loan-to-value (CLTV), with a line of up to $500,000.

• Bank statement documentation changes how income is proven. It does not change the equity formula.
• The line only supplies cash. Your purchase loan still has its own leverage, reserve, and sourcing rules, all subject to lender guidelines.

Key Terms Defined

Combined loan-to-value (CLTV): every loan secured by the property, added together, divided by the property’s value. Lenders cap this figure.

HELOC: a home equity line of credit. It is a revolving line secured by a property you already own.

Draw period: the stretch when you can borrow from the line and pay interest only.

Repayment period: the stretch after the draw period, when principal and interest are both due.

DSCR: debt service coverage ratio. It compares a rental’s monthly rent to the property’s monthly payment.

PITIA: principal, interest, taxes, insurance, and association dues. It is the payment that DSCR measures rent against.

Expense factor: the share of business deposits a lender treats as operating costs when it estimates your income from bank statements.

What Actually Sets Your Borrowing Limit?

Your limit is the smallest of three numbers: your equity room, the program’s maximum line, and the amount your personal income and credit can support. Strong equity does not help if your debt load fails the test. A strong income file does not help if the equity room is thin.

The equity math is simple. Multiply the property’s value by the CLTV cap. Subtract what you already owe against it. The result is the most the line can be, before any dollar cap applies.

The bank statement label touches only the income gate. Instead of tax returns, the lender studies 12 to 24 months of deposits, screens out transfers and other non-income credits, and applies an expense factor to business deposits. Each program sets its own factor, so there is no universal percentage to plan around.

Which property secures the line matters most. Lenders treat rentals as riskier than a borrower’s own home. NerdWallet notes that not every lender offers a line on an investment property and that requirements run stricter, sometimes with multiple appraisals. Our wholesale network follows the same pattern, and the ceilings differ by occupancy:

Lower credit tiers step the ceiling down. On a primary residence, a 640 profile tops out at 80% CLTV and a 700 profile at 85%.

Sizing the Line: Two Quick Examples in Percentages

Take a rental you already own with a first mortgage at 50% of its value. On an investment-property line capped at 70% CLTV, you have 20% of that property’s value in room. Now say you are buying a rental priced about the same as that collateral, with 20% down. The room matches the down payment almost exactly, with nothing left for closing costs or reserves. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.

Compare a primary home with a first mortgage at 60% of its value and a 720-plus credit profile. At the 90% CLTV ceiling, the room is 30% of value. The $500,000 line cap and the debt-load test would still apply.

A rental bought with 20% to 25% down typically carries a first mortgage at 75% to 80% LTV, which already sits above the 70% investment-line ceiling.

How Much Line Do You Need for the Down Payment?

Work backward from the purchase, not forward from your equity. Select programs reach 85% LTV, or 15% down, at roughly a 700-plus score. Every percentage point of leverage you give up on the purchase is a point you must fund in cash. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

Reserves and closing costs sit on top of those figures. Reserves are the months of PITIA you must hold in liquid funds after closing. They commonly run around six months. Conservative rate-and-term files at modest leverage under $1,500,000 can see them waived. Loans above that size typically step up to about nine months. The calculator on this page can turn the percentages into an illustrative dollar estimate for your own price.

One structural rule shapes the sizing. At least 75% of the line is drawn at closing, and the line’s pricing floats during both the draw and repayment periods. It never converts to fixed. If you open a $500,000 line but need a fraction of it, you still start paying interest on most of it. Open the line near the cash you need. Programs also set a $25,000 minimum line, and later draws after closing carry a $1,000 minimum on one of the two programs.

Where Bank Statement Income Meets the Debt Test

Even with deposit-based income, the lender still runs a debt-to-income test (DTI). The ceiling is 50%, drops to 45% for credit profiles from 600 to 679, and anything above 45% needs at least a 680 score. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on the amount you actually take.

That last detail is easy to miss. A smaller draw does not lower the payment used for qualifying if the line itself is large. A lender reviewing your file sees the full line’s carrying cost. Right-sizing the line, not just the draw, is how you keep DTI inside the limit.

Credit is scored on a single bureau model keyed to the primary wage earner. A bankruptcy needs four years of seasoning from discharge or dismissal. Foreclosure-family history splits by program and occupancy, so a borrower with that history should ask a broker to match the file before applying. The file is reviewed on documented income under the applicable program, subject to lender guidelines.

Two Programs, Two Sets of Terms

Lendmire is a mortgage broker that works with select wholesale HELOC lenders. Its network holds two main structures, and each figure applies only within its own program.

One is built for higher leverage. Its combined exposure cap is $2,000,000 across up to three lines. The other has a longer interest-only runway. Its combined exposure cap is $750,000 across up to three lines.

On primary residences and second homes, the draw periods run either three years interest-only with a 17-year amortizing repayment, or five years interest-only with a 25-year repayment. Investment lines run the five-year draw and 25-year repayment structure only. These HELOC programs are available in 16 full-service states, a narrower footprint than the broader DSCR platform’s 41 markets, including Washington, D.C.

Will the Purchase Lender Accept Borrowed Funds?

Often yes, but each lender sets its own rules, and you should confirm before you draw. The DSCR purchase loan is judged on the new property’s rent against its PITIA, plus its own LTV, reserve, and source-of-funds rules. The line is judged on you. Strong rent does not rescue a weak personal file for the line, and the line’s payment is a personal obligation outside the DSCR calculation.

Ask these questions before the first draw:

• Are borrowed funds accepted as down payment, and what paper trail is required?
• Must the funds sit in your account for a set period before the contract?
• Can borrowed funds count toward reserves, or must reserves be your own money?
• Does the line’s payment enter any debt-to-income test on the purchase?

A word on coverage. The DSCR floor is 1.00 where many select programs start, and a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Clearing 1.00 does not mean positive cash flow. Repairs, vacancy, management, utilities, and capital expenses sit outside the ratio. The line’s payment, which comes out of your pocket, sits there too. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

CBS News reports that an investor’s cash-on-cash return should exceed the borrowing cost of a home equity loan used to buy a rental. That is a good test to run on any HELOC-funded down payment.

HELOC, DSCR Cash-Out, or Cash? A Side-by-Side

On a cash-out refinance, the ceiling is about 75% LTV on a standard rental and 70% on short-term-rental collateral, with roughly six months of seasoning as the common expectation. A refinance resets your first mortgage. A line lets an existing first mortgage stay put. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Stacking Lines Across a Portfolio

A borrower can hold up to three lines, subject to the exposure caps above, and an investor who owns more than 15 financed properties is not eligible. That makes this a tool for early-to-mid portfolio growth, not a way to scale indefinitely.

Title is the sharpest structural trap. An LLC, corporation, partnership, or irrevocable, blind, or land trust cannot hold title on these lines. Only the individual borrower or a revocable living trust can. Many DSCR loans on the purchase side allow LLC title, subject to lender program eligibility. A property already deeded to an LLC would need a vesting change first, or a DSCR cash-out instead.

Property type matters too. Single-family, 2-4 units, townhomes, PUDs, and condos (including non-warrantable) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not offered.

Payments stack as you scale. Each draw adds a floating-price payment you cover personally. When the draw period ends, the payment steps up as principal begins to amortize. Run a stress test with rents lower and borrowing costs higher than today, and see whether you still cover both the mortgage and the line.

The Risks Worth Taking Seriously

Borrowing against one property to buy another stacks leverage. A down payment funded entirely by a line means you start with little or no equity in the new property. The rental must carry its own loan and your line.

The CFPB’s HELOC booklet explains that a lender typically sets the limit as a percentage of the home’s value minus the mortgage balance. That is why you cannot borrow all your equity. The same booklet notes that HELOC pricing is generally variable, so the payment can move against you.

If your home secures the line, the CFPB warns you could lose your home if you fall behind. That is the real price of the higher leverage a primary residence allows. Using an existing rental as collateral keeps your residence out of the picture, at the cost of the lower 70% ceiling.

Plan the exit before the first draw. Common exits include a paydown from rental cash flow, a sale, or refinancing the new property into a DSCR cash-out after seasoning. Pick one before you draw, since the line’s repayment period begins whether or not the plan is ready.

Finding the Right Program for Your Situation

The best program for your file depends on the collateral, your credit profile, your debt load, your leverage target, and your property type. A broker that shops multiple wholesale lenders can match those pieces to the right structure. The lenders that write bank statement lines vary in appraisal rules, credit tiers, and exposure caps, so one lender’s no is not the market’s no.

The 15 minutes you spend sizing the line against the purchase can save you from a mismatch: equity that looks big on paper and still fails the combined-leverage test.

If You Are Ready to Run Your Numbers

If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Programs change, every file is underwritten individually, and nothing here is a commitment to lend. For the full picture of how the rental loan side works, see the complete DSCR loans guide, and read the HELOC’s CLTV limit and the purchase loan’s LTV limit as two tests, not one.

About Lendmire

Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. NerdWallet – HELOC on an investment property

2. CBS News – Home equity to buy an investment property

3. CFPB – What you should know about HELOCs booklet

4. CFPB: What Is a Home Equity Line of Credit HELOC