How Much Can You Borrow on a HELOC Against an Investment Property?

The Quick Read: Usually it is 70% of the property’s value, minus every loan already recorded against it, capped at $500,000 on an investment property across the wholesale network Lendmire works with, and only if your personal credit score and debt load pass lender review. The full line counts toward that 70% whether or not you draw it. Heavily financed rentals often have no room at all.

• The formula: value × 70% CLTV, minus existing liens, then capped at $500,000 on an investment property.
• Credit: 700 is the minimum, and 720 reaches the same 70%. Higher credit buys eligibility, not extra leverage.
• Qualification: the borrower is underwritten, not the rent. Maximum debt-to-income is 50%, tested on the full line.
• Title: an individual or a revocable living trust. An LLC cannot hold title on this product.
• Alternative: a DSCR cash-out refinance qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.

The Formula: Value, Percentage, Liens

Start with the property’s value. Multiply it by the maximum combined loan-to-value (CLTV), which is the total of all loans on the property divided by its value. Subtract what you already owe. What’s left is the most the lender can give you.

On an investment property, the ceiling across most programs we place files with is 70% CLTV. That figure is for investment lines only. Primary homes and second homes get more room in the same network, but a rental does not.

The number you get is a ceiling, not a promise. Credit, personal debt, valuation, and title can each shrink it. Every figure here is typical guidance from select lenders in the network, subject to lender guidelines and full file review.

Three things trip people up:

• The first mortgage counts. The 70% includes it.
• The whole line counts. Ask for a larger line than you plan to use, and the full amount still sits in the CLTV test.
• The percentage is of value, not of equity. Equity and borrowing room are different numbers.

Here is how the room changes with the existing debt. These are percentage-of-value illustrations, not quotes.

A paid-off rental has the most room. A rental bought recently with a small down payment often has none. Run the same math on your own numbers before you apply, and treat the calculator on this page as an illustrative estimate only.

When the $500,000 Cap Binds First

The percentage and the dollar cap work together. Whichever is smaller wins.

On a modest rental with a first mortgage, the percentage usually binds first. On a high-value rental with little debt, the 70% figure can exceed $500,000, so the dollar cap becomes the limit. Line sizes on an investment property run from $25,000 up to $500,000.

Lines above $500,000 exist on this network, but only on primary residences. They cap at 75% CLTV and need a full appraisal. A rental cannot use that lane.

Why Your Approved Line May Come in Lower

Think of the formula as the top of a funnel. Several things narrow it.

Credit. The minimum score on an investment line is 700. A 720 score reaches the same 70% as a 700. Plenty of investors assume a higher score unlocks more leverage here. It doesn’t. It only keeps the file inside the eligible tiers. Lendmire’s piece How Much an Investment Property HELOC Lends at Each Credit Tier walks through that two-tier structure.

Debt-to-income. DTI is your monthly debt payments divided by your gross monthly income. The maximum on this network is 50%. The lender tests it on the interest-only payment for the full line, not the amount you’ve drawn. Your other mortgages count too. A portfolio investor can run out of DTI room long before any property-count limit.

Valuation. Because an investment line tops out at $500,000, it normally runs on an automated valuation, and a traditional appraisal is often not needed. A higher CLTV may call for a second valuation. You can also ask for a full appraisal.

Title. The property must be held by you personally or by a revocable living trust. More on that below.

Exposure limits. A borrower can hold up to three lines in this network. A borrower with more than 15 financed properties is not eligible.

Listing status. In a handful of states, a property listed for sale within the past 60 days is ineligible.

Availability. The HELOC program is offered in Lendmire’s 16 full-service states. That is narrower than the 41-market DSCR footprint, which includes Washington, D.C.

Key Terms Defined

CLTV (combined loan-to-value): all loans secured by the property added together, divided by the property’s value.

Lien: a recorded legal claim against a property, such as a mortgage or a HELOC.

Draw period: the stretch when you can borrow from the line, usually paying interest only.

DTI (debt-to-income): your monthly debt payments divided by your gross monthly income.

Vesting: how title to the property is held, such as an individual, a trust, or an LLC.

DSCR (debt service coverage ratio): monthly rent divided by the monthly payment covering principal, interest, taxes, insurance, and any HOA dues.

How the Line Works After You Close

A HELOC is a revolving line with two phases. NerdWallet’s explainer describes the market-wide pattern as a draw period of about 10 years, usually interest-only, followed by a repayment period of up to 20 years. It also notes that lenders see rentals as higher default risk, so the lender pool is smaller and you can borrow less than against a primary home.

The network figure is different. Investment lines here run a 5-year interest-only draw followed by a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing. Pricing floats during both phases and never converts to fixed.

That last point matters. The payment changes as the market moves, and it steps up when repayment begins and principal joins the bill. Check the repayment-phase payment against your rent, not just the draw-phase one. Payment shock is the most common regret on these lines.

The first mortgage stays in place. The line sits behind it in second position, or in first position if the property is free and clear. That can be a real advantage when your existing first loan is one you’d rather not replace.

Underwritten on You, Not the Rent

This is the biggest difference from a DSCR loan. A rental HELOC is underwritten on the borrower: credit score, personal DTI, and the property’s equity. The rent does not set the file.

Expect these pieces in the file:

• A credit report.
• Income and tax documents to support DTI.
• A valuation, which is usually automated at this size.
• A title search showing every lien.
• The statement for your existing first mortgage.

Rental income can help where it is documented and counted, but usually only in part. A short-term rental follows the same logic. Hosting income helps only if the lender counts it in your DTI.

Edge Cases That Change the Answer

LLC-owned rentals. On this network, LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A property already deeded to an LLC needs a vesting change or a different product. Some investors move title into their own name for the loan, but that can raise legal and insurance questions, so talk to an attorney first. This is not a recommendation.

A DSCR cash-out refinance generally allows LLC vesting, subject to program eligibility.

Recent purchases. The 70% includes your first mortgage. If you bought recently with a small down payment, you may be at or above 70% already. No room means no line.

Paid-off rentals. You still don’t get the full value. The lender keeps a cushion of at least 30% of value.

Unusual property types. Single-family, 2-4 units, PUDs, townhomes, and condos (including non-warrantable condos) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural parcels are not offered.

No three-day cancellation window. On a loan secured by your principal home, federal rules give you three business days to cancel. Regulation Z’s rescission section ties that right to a principal dwelling, and its commentary says a second or vacation home does not count. A DSCR loan is a business-purpose loan secured by an investment property, so it falls outside the consumer-credit rules in Regulation Z (12 CFR 1026.3), including the TRID disclosure requirements. A line placed directly on a rental generally lacks that window. Read the documents before you sign.

Rental HELOC or DSCR Cash-Out Refinance?

A rental HELOC suits investors who want to keep a good first mortgage, hold title personally, and borrow in stages. A DSCR cash-out refinance suits investors who want a larger lump sum, hold title in an LLC, or have personal DTI that is already stretched.

On a DSCR cash-out, the 75% ceiling applies to standard rentals. Short-term-rental collateral tops out at 70%. About six months of seasoning is the common expectation. Coverage of 1.00 is where many select programs start. A separate select-lender path goes below 1.00, with leverage and terms adjusted.

Clearing 1.00 is not the same as positive cash flow. DSCR compares rent to the payment only. Repairs, vacancy, management, utilities, and capital expenses all sit outside it.

The strongest files clear both tests: enough equity and enough rental coverage. For the full picture of how those loans work, see Lendmire’s complete DSCR loans guide. If you want help sizing how much equity to pull before choosing, Lendmire’s article Investment Property HELOC for Owners Sizing How Much Equity to Borrow covers the decision.

Risks and When to Skip It

A HELOC makes sense when you have a specific use for the money, steady personal income, and room under the DTI limit. It makes less sense in these cases:

• Your DTI is already near 50%. The line is tested at full size, so you may not clear it.
• You need funds for a long hold with weak rent. A floating payment against thin cash flow is a risky mix.
• Your title sits in an LLC. Fixing that adds cost and complexity.
• Your rental is thinly equitied. If you bought at high leverage, there may be nothing to borrow against.

Remember the collateral. A line secured by a rental puts that rental on the line. Vacancy, a repair bill, and a payment step-up can arrive in the same year.

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.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. NerdWallet: Can You Get a HELOC on an Investment Property

2. CFPB Regulation Z § 1026.23, Right of Rescission