How Much Can You Borrow on a Bank Statement HELOC for Borrowers Keeping a Mortgage?

The Quick Read: It depends on the property type, because your line is the lower of two numbers: the home’s value times the program’s combined loan-to-value ceiling minus every lien already on it, or the program’s maximum line, and your existing mortgage uses up part of that room. Bank statements change how your income is proven. They do not raise the ceiling.

• On an investment property, the network ceiling is 70% combined loan-to-value, with a 700 minimum credit score and a $500,000 maximum line.
• On a primary residence or second home, the ceiling reaches 90% only at a 720-or-better credit profile, with lines up to $500,000.
• Lines above $500,000 are primary-residence only, cap at 75% combined loan-to-value, and require a full appraisal.
• Your first mortgage stays in place. The new line sits behind it or beside it as a separate loan.
• Title must be held by you or a revocable living trust. An LLC cannot hold title on these lines, subject to lender guidelines and full file review.

Key Terms Defined

Combined loan-to-value (CLTV): your first mortgage plus the new line, divided by the property’s value.

Second lien: a loan that sits behind your first mortgage. If the property were sold, the first mortgage gets paid first.

Draw period: the stretch when you can borrow from the line and pay interest only. Repayment follows, and the balance amortizes.

Deposit-based income: income the lender calculates from your bank statements instead of traditional personal-income documentation.

Interest-only payment: a payment covering interest but no principal. Lenders on this network use it, calculated on the maximum draw, to test your debt-to-income ratio.

How the Maximum Line Is Calculated

Take the property’s value and multiply it by the CLTV ceiling for your occupancy type. Subtract every lien already on the property. Then compare the result with the program’s dollar cap. Whichever is smaller is your maximum.

The first mortgage matters because CLTV counts it. A home worth 100 units with a first mortgage at 50% of value and a 70% ceiling leaves room for a new line of about 20% of value. The ceiling is a total, not an add-on.

Here is the same math with three different first-mortgage balances. These are percentages of value only, before any dollar cap.

On a higher-value property, the dollar cap becomes the limit before the percentage does. Wherever the room percentage times the value exceeds the cap, the cap wins. Lenders on this network generally test CLTV against the full credit limit, not just the amount you draw. At least 75% of the line is also drawn at closing, so the practical commitment is larger than many borrowers expect.

What Are the Ceilings by Property Type?

The ceiling depends on how you use the property. Investment properties get the thinnest tier. Across the wholesale network behind Lendmire, these are the ranges, subject to lender guidelines:

Two wholesale programs sit behind these figures. One is a higher-leverage program. The other, the longer-runway program, uses a 5-year draw and a 25-year repayment. Lower credit tiers step the ceiling down. A primary residence at 660, for instance, tops out at 85%, and 620 drops it to 70%.

A market survey from NerdWallet puts the maximum loan-to-value on an investment-property HELOC at 80% across the broader market, with many lenders sitting below 70%. It also notes that these lines are harder to get because lenders see higher default risk, and that not every lender offers them. On this network, the investment-property ceiling is 70% CLTV. Nothing sits above it.

How Do Bank Statements Change the Math?

They change the documentation, not the ceiling. Scotsman Guide describes the general method: a self-employed borrower supplies 12 to 24 months of personal or business statements, and the lender calculates income after applying an expense factor. The expense factor varies by program, and a profit-and-loss statement or a tax professional’s expense letter can sometimes replace it.

Business accounts usually get prorated for your ownership share. Transfers and unexplained deposits get screened out. The result is a qualifying income figure that goes into your debt-to-income test.

That test is personal. Rent from the property does not enter it. Here is how it works across the network:

• Maximum debt-to-income is 50%.
• It drops to 45% for credit profiles from 600 to 679.
• A ratio above 45% requires a score of at least 680.
• The payment tested is interest-only, calculated on the maximum draw, not on what you plan to draw.

So your first mortgage payment, your other debts, and a payment sized to the full line all compete for the same ratio. A large first mortgage can shrink the line twice: once through CLTV and again through debt-to-income.

What Else Shrinks Your Number?

Several things can pull the approved line below the formula result.

• Credit tier. Each tier carries its own ceiling and dollar cap. The 90% ceiling exists only at 720 or better.
• Valuation. Lines at or below $500,000 ordinarily use an automated valuation. A higher CLTV may require a second valuation. Every line above $500,000 needs a full appraisal, and you can request one on any line.
• Number of lines. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program.
• Portfolio size. A borrower who owns more than 15 financed properties is not eligible.
• Property type. Single-family, 2-4 unit, PUD, townhome, and condominium properties are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural properties are not offered.
• Title. Individuals and revocable living trusts only.

That last point is where many investors get stuck. A property already deeded to an LLC needs a vesting change, or a different product such as a DSCR cash-out.

Availability matters too. These HELOC programs run in 16 full-service states, a narrower set than Lendmire’s DSCR footprint of 41 markets, including Washington, D.C.

Keep the Mortgage or Refinance Into a Rental Loan?

A HELOC leaves your first mortgage alone. Its balance, term, and payment do not change. If you hold a first mortgage you like, that is the whole appeal. The cost is a floating-price second lien that you qualify for on personal income and debt.

A cash-out refinance does the opposite. It replaces the first mortgage with a new one. On a rental property, that can run through a DSCR loan. DSCR stands for debt service coverage ratio. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. NerdWallet also points to a DSCR second mortgage as an option for a mainly rented property.

Short-term rental collateral on a DSCR cash-out tops out lower, at 70%. Seasoning, the waiting period after you buy before you can refinance, is commonly about 6 months. Coverage of 1.00 is where select programs start. A separate path through select lenders in the network takes coverage below 1.00, with leverage and terms adjusted. Stronger ratios open better pricing and leverage.

One caution. Clearing 1.00 does not mean the property cash flows. DSCR compares rent to the monthly payment, including taxes and insurance. Repairs, vacancy, management, and utilities sit outside it. For the full mechanics, see the complete DSCR loans guide.

Borrow Less Than the Maximum

A line on your home is secured by your home. The CFPB warns that if you fall behind on a HELOC, you could lose the property that secures it. On a rental line, that means the rental. On a line against your own residence, it means your home.

The ceiling tells you what a lender will allow. It does not tell you what the property can carry. A conservative approach keeps the draw well under the line and the CLTV well under the ceiling. The CFPB’s HELOC booklet describes the same sizing method used here: a percentage of appraised value, minus what you owe on the mortgage. Its percentage is an illustration, not a program rule.

Because these programs differ by lender, a broker that shops several wholesale lenders can match your occupancy type, credit profile, and equity to the program that fits. Lendmire’s piece Top Bank Statement HELOC Providers for Borrowers Keeping a Mortgage in Place explains what separates one program from another.

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. Every figure above is subject to lender guidelines and full file review, and none of it is a commitment to lend.

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

2. Scotsman Guide – Rev Up the Engine for Non-QM Lending

3. CFPB

4. CFPB – What you should know about HELOCs (booklet)