The Quick Read: A home equity line of credit (HELOC) can sit behind your existing first mortgage as a second lien. The first loan keeps its balance, its payment, and its terms. The line is reviewed on your credit, your income, your debt load, and your combined leverage, not on rent alone. Many lenders do not write it on a rental at all, so what you get depends on the property and the lender type.
- A second-lien line leaves the first mortgage exactly as it is. A cash-out refinance replaces it.
- Borrowing room comes from combined loan-to-value (CLTV): the first balance plus the new line, divided by the property’s value.
- Across Lendmire’s wholesale network, the ceiling on an investment property is 70% CLTV, with a 700 minimum credit score and a maximum line of $500,000.
- Primary-residence and second-home lines reach higher, up to 90% CLTV only at a 720-or-better credit profile.
- LLCs cannot hold title on these lines, which is the sharpest difference from a DSCR loan.
Every figure here is subject to lender guidelines and full file review. Nothing here is a commitment to lend.
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.
How Does a HELOC Leave Your First Mortgage Alone?
A HELOC is a second lien: a claim on the property that ranks behind the first mortgage. The first lender keeps its place in line, and your existing loan keeps its balance, payment, and terms. The new lender lends only against the equity left after the first loan.
That is why people with a low first-mortgage payment ask about this route. A cash-out refinance pays off the old loan and starts a new one on the whole balance. A HELOC leaves the old loan in place and adds a separate line, though at least 75% of that line is drawn at closing.
The line can also stand alone. If a property has no mortgage, the same line can sit in first position. The structure is the same either way: a limit, a draw period, then repayment.
Which Kinds of Banks Write It?
Rental-secured equity lines are the exception, not the norm. NerdWallet reports that not all lenders offer a HELOC on an investment property and that qualification is strict. It also notes that many lenders do not accept investment properties at all.
So this is not a “pick a bank from the list” product. A list of names would go stale, and the right lender depends on your property, credit, and leverage. Think in lender types instead.
| Lender type | Typical fit | Watch for |
|---|---|---|
| Large retail bank | Primary-home lines | Often skips rentals |
| Regional or portfolio bank | Local relationships | Own overlays, thin menu |
| Credit union | Members with deposits | Membership and branch limits |
| Online lender | Standard profiles | Narrow property rules |
| Broker with wholesale network | Shopping several programs | Program fit varies by file |
Lendmire is a mortgage broker, not a lender. It places equity-line files with select wholesale partners and matches the scenario to the program. This HELOC platform is available in Lendmire’s 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. That is narrower than the DSCR footprint. The best program for your situation depends on occupancy, credit profile, how much you need, and the property type.
Two Products Hide Inside One Search
The search term blends two different loans. One is a HELOC secured by your primary home, with the money used to buy or fix a rental. The other is a HELOC secured by the rental itself.
The first is the common one. The second is the scarce one. The collateral changes the occupancy, which changes the ceiling, the credit minimum, and the paperwork.
Here is how the network treats each occupancy.
| Occupancy | Max CLTV (credit tier) | Credit floor | Max line |
|---|---|---|---|
| Primary residence | Up to 90% at 720+ | 600 | $500,000 at 90% CLTV; $750,000 at 75% CLTV, 700+ (720 on the longer-runway program) |
| Second home | Up to 90% at 720+ | 640 | $500,000 |
| Investment property | 70% at 700+ | 700 | $500,000 |
The primary-residence and second-home tiers step down as credit drops. A 700 profile on a primary residence reaches 85% CLTV up to $500,000. A 640 profile reaches 80% on a primary residence and 75% on a second home. The 90% figure never applies to an investment property.
How Underwriting Treats the Line, Step by Step
Underwriting a second-lien line follows a fixed order. Each step can shrink the line or stop the file.
Step 1: Occupancy and property type. The lender confirms what the property is. Single-family homes, 2-4 units, PUDs, townhomes, and condos (including non-warrantable condos) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agriculturally zoned properties are not.
Step 2: Title and vesting. The borrower must hold title personally or through an inter vivos revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A rental already deeded to an LLC needs a vesting change first, or a DSCR cash-out instead, subject to program terms.
Step 3: Credit. The network uses a single-bureau score keyed to the primary wage earner. The report must be no more than 90 days old at closing, and there are no rescores. The program floor is 600, but an investment property starts at 700.
Step 4: Debt-to-income (DTI). The maximum is 50%. The lender reviews your file on the interest-only payment calculated on the maximum draw, plus your first mortgage and other debts. A ratio above 45% requires a 680 minimum.
Step 5: Combined leverage. The lender adds your first balance to the proposed line and tests the total against the property value. The line is what fits under the CLTV cap.
Step 6: Valuation. Lines at or below $500,000 ordinarily use an automated valuation with no traditional appraisal, though a higher CLTV may call for a second valuation. Every line above $500,000 needs a full appraisal. You can also request one in any case. NerdWallet adds that investment properties may require multiple appraisals at some lenders.
Step 7: Credit history seasoning. A bankruptcy needs 4 years from discharge or dismissal. Investment files that carry a foreclosure follow a 7-year path, and a deed-in-lieu, pre-foreclosure, or short sale follows a 4-year path. On primary residences and second homes, one program declines foreclosure history entirely regardless of age.
The leverage test in Step 5 is the one that sets the final size of the line, so it is worth running the numbers early.
A Worked CLTV Example (Illustrative, in Percentages)
Say a rental is worth 100 units of value, and your first mortgage balance equals 50% of it. The investment ceiling is 70% CLTV. That leaves room for a line worth 20% of the property’s value, at most.
| Item | Share of value |
|---|---|
| First mortgage balance | 50% |
| Investment CLTV ceiling | 70% |
| Maximum new line | 20% |
These are modeled assumptions, not market data. The line must also clear the $25,000 minimum and the $500,000 investment maximum. If the first mortgage already sits near 65%, the room left is thin.
Now run the same property as a primary residence at a 720 profile. The CLTV cap is higher, so the same 50% first balance leaves much more room, up to the line limits. The occupancy changes the answer more than the property does.
What the Structure Looks Like
Across the network, the line comes in two draw structures on primary residences and second homes. One has a 3-year interest-only draw followed by a 17-year fully amortizing repayment. The other, the longer-runway program, has a 5-year interest-only draw followed by a 25-year repayment. Investment lines run only on the longer-runway structure.
Three structural points matter before you apply.
- Initial draw. At least 75% of the line is drawn at closing. This is not an “open it and leave it empty” product.
- Floating pricing. Pricing floats through both the draw and the repayment period and never converts to fixed. The CFPB notes that some HELOCs elsewhere let you convert part of the balance to a fixed rate. That option is not part of these programs.
- Later draws. After closing, the minimum subsequent draw is $1,000, as stated by the longer-runway program.
The CFPB’s HELOC booklet also explains that lenders must disclose payment terms and variable-rate features. It describes the draw period followed by a repayment period. Read your own terms for how and when the line can be reduced or frozen.
Expect the payment to change over time. A floating payment sits on top of your first mortgage payment, which matters for rental cash flow.
Where the General Rule Breaks
The rule so far: keep the first mortgage, add a line behind it. Several situations bend it.
The property sits in an LLC. Personal underwriting means personal title. A DSCR cash-out generally lets an LLC stay on title, subject to program terms. That loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. On most DSCR files, the cash-out ceiling is about 75% LTV on standard rentals, and 70% on short-term-rental collateral. About 6 months of seasoning is the common expectation.
The first mortgage is small. The HELOC cap applies to total leverage. If the first loan is a small share of value, a DSCR cash-out may release more than a capped investment line.
You own many properties. A borrower is limited to three lines. Combined exposure across those lines caps at $2,000,000 on the higher-leverage program and at $750,000 on the longer-runway program, so the longer-runway program leaves room for only one line at the maximum size. A borrower owning more than 15 financed properties is not eligible. If your portfolio runs up against these limits, a DSCR cash-out may fit better.
You want a line above $500,000. That is primary-residence only. It requires a credit profile of 700 or better (720 on the longer-runway program), caps at 75% CLTV, and needs a full appraisal.
The property is listed for sale. In NC, PA, TN, TX, and WA, a property listed for sale, or listed within the past 60 days, is ineligible.
You plan to refinance the first mortgage later. A second lien can complicate that refinance, because the new first lender usually needs to deal with the line behind it. The details depend on the lender and the file, so raise it with your broker before you open the line.
The interest-only payment tests your DTI. Because the lender reviews your file on the interest-only payment at the maximum draw, a line you plan to draw lightly can still be sized as if fully drawn.
Key Terms Defined
Second lien: a loan that sits behind your first mortgage and gets paid second if the property is sold or foreclosed.
CLTV (combined loan-to-value): your first mortgage balance plus the new line, divided by the property’s value.
Draw period: the stretch when you can borrow from the line, usually with interest-only payments.
Repayment period: the stretch after the draw period when the balance amortizes and new draws stop.
DTI (debt-to-income): your monthly debts divided by your monthly income.
DSCR (debt service coverage ratio): monthly rent divided by the monthly payment of principal, interest, taxes, insurance, and any HOA dues (PITIA). It compares rent to PITIA only, so clearing 1.00 does not mean positive cash flow.
Vesting: how title to the property is held, such as personally, in a trust, or in an LLC.
The Investor Decision in Practice
Start with three questions.
Is your first mortgage worth keeping? If its terms are clearly better than what you could get today, a second-lien line lets you protect it. If not, a refinance may be cleaner. A refinance can also trigger a prepayment penalty if your first loan carries one, and a line avoids paying off that note.
How much do you need, and when? A line suits staged needs: a rehab in phases, or a down payment for the next purchase. A DSCR cash-out suits a single large need.
Who holds title? If the answer is an LLC, the equity-line route is closed until title changes. DSCR may be the practical option. Lendmire’s article How to Qualify for an Investment Property HELOC When You Want to Keep Your First Mortgage covers the qualification side in more detail.
A DSCR purchase or cash-out looks at different things. Many select programs start at 1.00 coverage, and stronger ratios can open better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Leverage on purchases mostly lands at 75%-80% LTV, and credit tiers typically run from 620 up to 700-plus for the strongest tiers. Lendmire’s complete DSCR loans guide lays out those mechanics.
What to Prepare Before You Ask
- Current first-mortgage statement showing balance and payment.
- Estimate of property value, and an idea of whether you will want a full appraisal.
- Credit report details for the primary wage earner.
- Income documentation for DTI, plus lease or rental information on the property.
- Confirmation of how the property is titled today.
- A realistic view of how much you will draw, because at least 75% of the line is drawn at closing.
Frequently Asked Questions
Can I have a HELOC and a first mortgage on the same rental?
Yes, when the lender writes the line in second position. The first mortgage stays as it is. The new lender sizes the line on combined leverage, so the first balance counts against the ceiling. On an investment property in Lendmire’s network, that ceiling is 70% CLTV, and the credit minimum is 700.
Do banks lend against rentals as readily as primary homes?
No. Market education sources note that availability on investment properties is limited, and some lenders do not accept them at all. Primary-residence lines are easier to find. A broker that shops several wholesale programs can match the occupancy and property type to a lender that writes it.
Can an LLC take out this kind of line?
No. Title must be held by the individual borrower or an inter vivos revocable living trust. A property in an LLC needs a vesting change, or a DSCR cash-out may fit instead, subject to program terms.
Will the payment stay the same?
No. Pricing floats during the draw period and the repayment period, and it never converts to fixed on these programs. During the draw period the payment is interest-only. After that, the balance amortizes over the repayment term.
Does the HELOC change my first mortgage?
No. The first loan keeps its balance, payment, and terms. The line only sits behind it. A later refinance of the first loan may involve the second lien, so plan for that before you open the line.
Next Step
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. Reach the team at 828-256-2183 or request a quote. Figures are illustrative estimates and subject to lender guidelines.
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 – HELOC on an investment property
2. CFPB
3. CFPB – What You Should Know About Home Equity Lines of Credit
This article is part of Lendmire’s HELOC & home equity loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Banks That Offer a DSCR HELOC to Cover a Down Payment · Banks That Offer an Investment Property HELOC for a Mortgaged Rental With a Fixed First
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.