The Quick Read: The return on a home equity line against a rental depends on one spread: what the borrowed money earns after all expenses, minus what the floating line costs, measured on the dollars you actually draw. A line can raise cash-on-cash return when the spread is positive, but the same line can cut returns when the cost of the debt rises above the yield.
- On this network, an investment-property line tops out at 70% CLTV with a 700 minimum credit score and a $500,000 maximum line.
- Investment lines run a five-year interest-only draw, then a 25-year fully amortizing repayment, and the pricing floats the whole way.
- At least 75% of the line is drawn at closing, so interest cost starts on most of the line right away.
- A fully drawn line with zero cash of your own in the deal does not produce a usable ROI figure, so measure after-debt cash flow instead.
- A DSCR cash-out refinance is the usual fixed-structure alternative when the rental has the equity and the income.
How Does a HELOC on a Rental Actually Work?
An investment-property HELOC is a revolving line secured by a lien on the rental, usually in first or second position. You draw during an interest-only period, then the balance amortizes. Investment lines are narrower and stricter than the primary-home version.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
NerdWallet reports that not all lenders offer a HELOC on an investment property and that qualification requirements are strict. It also notes that multiple appraisals may be required to confirm value. Those are market-wide observations. Across the select wholesale lenders Lendmire works with, the structure is tighter and more specific than the general market description.
Here is what the investment line looks like through the network, subject to lender guidelines and full file review:
- Leverage: 70% CLTV on an investment property, for 720-plus and 700-plus credit alike. Credit above 700 buys eligibility, not extra leverage.
- Credit: 700 is a hard floor on investment lines, with no tier beneath it.
- Line size: $25,000 to $500,000 total on an investment property. A line above $500,000 is available on primary residences only.
- Structure: A five-year interest-only draw and a 25-year fully amortizing repayment. Pricing floats across both periods and never converts to a fixed structure.
- Draw at closing: At least 75% of the line is drawn at closing. Later draws have a $1,000 minimum.
- Qualifying: DTI up to 50%, calculated on the interest-only payment at the maximum draw.
- Valuation: Because the line cannot exceed $500,000, the value is ordinarily set by an automated valuation, with no traditional appraisal unless the borrower requests one or the lender asks for a secondary valuation.
The network’s figure on an investment property is 70% CLTV at a 700 minimum.
One structural point catches a lot of files. The borrower must hold title as an individual or in a revocable living trust. An LLC, corporation, partnership, or irrevocable or land trust cannot hold title on a line. A rental already deeded to an LLC needs a vesting change first, or the investor may be better served by a DSCR cash-out refinance, subject to program terms.
What Does ROI Mean When the Money Is Borrowed?
ROI on borrowed equity has three useful measures. Each answers a different question.
Cash-on-cash return is pre-tax cash flow divided by the cash you invested. Janover notes that it leaves out appreciation, principal paydown, and depreciation, so it is a partial view.
Return on the draw isolates the borrowed dollars. Take the net income the funds add, subtract the interest on the line, and divide by the amount drawn. This is the measure that tells you whether the line earned its keep.
Return on equity compares annual net income to the equity you still hold in the property. Pulling equity out lowers the denominator’s value, so this figure usually looks worse after a draw even when cash-on-cash looks better.
PropertyMetrics frames the core idea as positive and negative leverage. Debt is positive when it raises an investor’s return and negative when it lowers it. Janover adds that when the cost of debt exceeds the cap rate, leverage works against the investor. A floating-cost line makes that crossover a live risk instead of a one-time check.
The Breakeven Test, Step by Step
The test is short. Run it before you open the line, not after.
1. Name the use of funds. Renovation, a down payment on another rental, debt payoff, or reserves each produce a different income effect.
2. Estimate the added net income. Use rent after vacancy, repairs, management, utilities, and taxes. Do not use gross rent.
3. Subtract the line’s interest cost on the drawn amount. Remember that 75% or more of the line is drawn at closing, so the interest starts on that portion immediately.
4. Divide by the amount drawn. That is your return on the draw.
5. Compare it to the cost of the line. If the return on the draw does not clear the cost, the line is subtracting from your returns.
6. Stress the test. Raise the index, add a vacancy period, and run it again at the start of repayment.
Run the numbers on a renovation that adds rent. If the added net income after vacancy and expenses covers the line’s interest with room to spare, the return on the draw is positive. If one soft leasing season erases that room, the project is thin. The line cost moves with the index, so the margin of safety matters more than the base-case answer.
Where the ROI Math Breaks
The general rule is that cheap borrowed equity lifts returns. Here are the named cases where that rule fails.
Zero cash in the deal. When the line funds the whole down payment, cash invested is zero and the return is mathematically undefined. Some investors call it an infinite return. That is an artifact of the formula, not a result. The debt still carries a cost and a repayment obligation, so measure cash flow after all debt service and look at the total return over the hold instead.
Cash flow that only covers the line. If net rent after expenses merely matches the line’s interest, the property pays for its own financing and contributes nothing to you. The first mortgage must also be covered. The rental has to carry both layers of debt.
Stacked debt with a fixed first lien. A fixed first mortgage gives a false sense of stability. The second lien floats. A rise in the index changes your cost on the line even though the first mortgage payment stays flat.
The interest-only trap. The interest-only draw period makes the monthly cost look small. Interest-only minimums do not retire principal, so the balance sits there until repayment begins. The CFPB HELOC brochure notes that with a variable rate, payments may change even if you draw no more money. It also says some plans allow interest-only payments during the draw period, so nothing goes toward principal.
The repayment step-up. On the network’s investment line, the draw lasts five years and repayment amortizes over 25. The payment steps up when principal starts. No neutral source gives a standard size for that increase, since it depends on balance, pricing, and term. Model it at the line’s full balance, not at today’s interest-only cost.
Short holds versus long holds. A line suits flips and BRRRR-style projects better than long buy-and-hold deals, because you can pay it down when the refinance or sale lands. The risk is the take-out. If the refinance appraises light or leverage limits bind, you may not be able to pay the line off in full.
Ineligible properties. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not offered. Single-family, two-to-four-unit, PUD, townhome, and condominium properties are eligible, including non-warrantable condos, subject to lender guidelines.
Primary Home Line or Rental Line?
The collateral choice changes the leverage, the risk, and the eligibility. Lendmire’s network treats the two differently.
On a primary residence, the ceiling reaches 90% CLTV, but only at a 720-or-better credit profile. On the rental itself, the ceiling is 70% CLTV. A larger primary-residence line gives more room, but it puts your home behind the debt for a rental bet. If the rental stalls, the lender’s claim is on the house you live in.
The rental-secured line keeps the risk on the rental. It also leaves you with less leverage and a $500,000 cap. Investors who want to keep a low first mortgage and add a second lien should read Lendmire’s piece Investment Property HELOC Lenders for Investors Keeping a Low First Lien.
HELOC vs DSCR Cash-Out: A Return Comparison
A DSCR cash-out refinance replaces the first lien with a larger one. It is the main alternative when the property has equity and the rent supports the payment. Investors weighing the two should read the complete DSCR loans guide alongside this article.
| Factor | Investment HELOC | DSCR cash-out refinance |
|---|---|---|
| Max leverage | 70% CLTV on an investment property | Around 75% LTV on standard rentals |
| Pricing | Floats, never fixed | Fixed spine, extended terms available |
| Reviewed on | Personal DTI up to 50% | Rental income covering the payment |
| Title | Individual or revocable trust | LLC, subject to program terms |
| Size | $25,000 to $500,000 | Up to $3,000,000 on standard programs |
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. A cash-out refinance typically expects about six months of seasoning on the property.
Two clarifications keep the comparison honest. First, a DSCR near 1.00 is not positive cash flow. The ratio compares rent to PITIA only. Repairs, vacancy, management, utilities, and capex sit outside it. Second, 1.00 is where select programs start, and coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted.
The HELOC has two clear advantages. It costs nothing on the undrawn balance after closing, and it gives revolving access for investors who recycle capital. Its weakness is the floating cost and the personal DTI test. The DSCR cash-out gives a fixed-structure first lien and is reviewed on the property, but it resets the whole mortgage. If your existing first mortgage is a low fixed one, a second lien keeps it intact.
Three Worked Scenarios (Ratios, Not Dollars)
Picture an investor adding a unit’s worth of rent through a renovation. The added net income, after vacancy and expenses, covers the line’s interest by a wide margin in the base case. The return on the draw is strong. Raise the index and add a long vacancy, and the margin narrows. The project still works only if the cushion survives the stress case.
Say you own a rental and draw the line for a down payment on a second property. With 75% of the line drawn at closing, interest is running before the new rental is even leased. The new property must carry its own first mortgage and the line. If its rent only covers the first mortgage, the line is an unfunded cost you pay from other income.
Consider a scenario where the draw pays off a higher-cost debt. The return is the interest you stop paying minus the line’s interest. This is the cleanest use, because the return does not depend on leasing. It only works if the line stays cheaper than the debt it replaces.
On deals like these, the file usually fails on the second-layer carry, not on credit. Investors model the property’s yield and forget the line’s cost shifts with the index. The files that hold up are the ones where the property covers its first mortgage, the line’s interest, and a vacancy cushion at the same time.
What About Taxes?
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.
The Draw-to-Repayment Timeline
The CFPB’s HELOC overview says that after the draw period ends, you can no longer borrow and enter the repayment period. It also says most HELOCs have a variable rate, and some products let you convert part of the balance to a fixed rate. The network’s investment line does not offer that conversion. It floats through both phases.
| Phase | Length on the investment line | What changes |
|---|---|---|
| Draw | Five years, interest-only | Revolving access, principal untouched |
| Repayment | 25 years, fully amortizing | Principal starts, payment steps up |
| Pricing | Floats throughout | Index plus margin, never fixed |
The CFPB brochure also warns that some plans require the entire balance at the end of the draw. A fully amortizing structure avoids that balloon, but it still means the payment jumps when repayment begins.
When a HELOC Hurts Returns
Skip the line, or shrink the draw, when any of these is true:
- The property’s net income barely covers the first mortgage on its own.
- The planned use has no income effect, such as paying for a lifestyle expense.
- The line’s cost has already crossed the property’s yield.
- You would need the funds back before a repayment step-up or a refinance take-out.
- The property sits in an LLC and a vesting change would add friction.
Key Terms Defined
CLTV: Combined loan-to-value, which is every lien on the property divided by its value.
Draw period: The stretch when you can borrow from the line and pay interest-only.
Repayment period: The stretch after the draw ends, when principal begins to amortize.
Index and margin: The two parts of a variable price, where the index moves and the margin is set at origination.
Cash-on-cash return: Pre-tax cash flow divided by the cash you put in.
Positive and negative leverage: Debt that raises your return is positive, and debt that lowers it is negative.
Frequently Asked Questions
Can a HELOC on an investment property really raise my returns?
It can when the property’s yield on the borrowed funds exceeds the line’s cost. The gain disappears when the index rises, vacancy hits, or the funds produce no added income. Treat the first-year result as a base case and test it against a higher cost and a leasing gap.
How much can an investor borrow on a rental through this network?
Investment lines reach 70% CLTV with a 700 minimum credit score and a $500,000 maximum line, subject to lender guidelines. Credit above 700 does not raise the leverage. Larger lines are available only on primary residences.
Is the return really infinite if the line covers my whole down payment?
No. Zero cash invested makes the formula undefined, not infinite. The line still has a cost and a repayment schedule. Measure net cash flow after all debt service and look at the total return over the hold instead.
Does the line qualify on rental income like a DSCR loan?
No. The line is reviewed on personal DTI, up to 50%, calculated on the interest-only payment at the maximum draw. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
Should I use a HELOC or a DSCR cash-out refinance?
It depends on your first mortgage and your holding period. A low fixed first lien argues for a second-lien line. A short hold with a planned take-out also fits a line. A long hold on a rental with strong equity often fits a cash-out refinance with a fixed structure.
Next Steps
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. Lendmire arranges these lines through select wholesale partners in its 16 full-service states, which is narrower than its 41-market DSCR footprint, and it is never the lender. Every figure above is subject to lender guidelines and full file review. This is not a commitment to lend.
About Lendmire
As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. NerdWallet – Can you get a HELOC on an investment property?
2. Janover – Cash-on-cash return
3. PropertyMetrics – Negative leverage
5. CFPB – What is a home equity line of credit (HELOC)?
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: VA Cash-Out vs Investment Property HELOC With a Low Home Mortgage · How to Buy Investment Property With a HELOC as the Down Payment · Investment Property HELOCs for Investors Eyeing Stocks: Why to Say No
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.