The Quick Read: A home equity line of credit (HELOC) is a separate loan that sits behind your first mortgage. Your current loan keeps its balance, term, and payment while a different lender extends the line, as long as your equity, credit, and debt load fit that lender’s limits and the property and its ownership are eligible. Which lenders write these loans depends on the property type, your credit profile, how much leverage you need, and how the property is titled. Lendmire is a mortgage broker, so it shops select wholesale lenders instead of pointing you to one bank.
- The HELOC is a second lien, so it does not pay off, modify, or reprice your first mortgage.
- Fewer lenders write lines on rentals than on owner-occupied homes, and the limits are tighter.
- On Lendmire’s wholesale network, an investment-property line tops out at 70% combined loan-to-value (CLTV), and investment lines require a 700 minimum credit score.
- Title matters: the line must be held by you personally or by a revocable living trust, never an LLC.
- If the line does not fit, a DSCR cash-out refinance is the usual alternative for rentals.
Which Banks Offer a HELOC That Leaves Your First Mortgage Alone?
Many lenders can write a line behind your first mortgage, but no single bank list holds up. Every lender sets its own rules on property type, occupancy, and combined leverage, and those rules change. The practical answer is to match your file to the lenders whose guidelines fit it.
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 notes that a HELOC on an investment property is not offered by every lender and comes with strict qualification requirements. It also notes that this limits your ability to compare offers. That matches how the market works: a lender that happily writes a line on a primary home may decline the same borrower on a rental.
The kinds of institutions that write these lines include large retail lenders, regional banks, credit unions, and online lenders. Each type has its own appetite. Some will not touch a rental at all. Some lend only on properties you own personally. A broker that works with several wholesale lenders can sort that out up front, so you do not take a hard credit pull at every door.
Lendmire does not name or rank lenders, and it is not the lender on any of these files. It places the file with a lender whose program fits. The best program for your situation depends on occupancy, credit, equity, and how you hold title.
Key Terms Defined
HELOC: An open-end line of credit secured by your property. You borrow against it, repay, and borrow again within the limits of the line.
Second lien: A loan recorded behind your first mortgage. If the property is ever sold or foreclosed, the first lender is paid first.
First lien HELOC: A line that takes the first position. It is built to replace your mortgage, which is the opposite of what you want here.
CLTV (combined loan-to-value): Your first mortgage balance plus the new line, divided by the property’s value.
DTI (debt-to-income ratio): Your total monthly debt payments divided by your monthly income.
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 you can no longer borrow and the balance amortizes.
What a HELOC Does to Your First Mortgage
A HELOC does not touch the first mortgage. It is a second loan with its own balance, its own payment, and its own terms. Your first loan keeps the balance and payment it already had.
That is the main reason investors choose a HELOC over a refinance. A cash-out refinance replaces the whole first mortgage with a new, larger loan. A line leaves the original debt in place and puts new terms only on the money you actually use. If your first mortgage has terms you would not match today, that difference matters.
The first mortgage does not disappear from the math, though. It counts toward your combined leverage. Its payment also counts in your debt-to-income ratio. Its interest rate does not change how much you can borrow, but its balance and payment do.
How Underwriting Treats a Line Behind a First Mortgage
The lender runs four tests in order. You need to clear all of them.
Step 1: Equity. The lender takes the property value and applies a CLTV cap. Your existing first balance plus the new line must fit under that cap. On Lendmire’s network the cap depends on occupancy and credit tier, as the table shows.
| Occupancy | Credit tier | Max CLTV |
|---|---|---|
| Investment property | 700+ | 70% (line up to $500,000) |
| Second home | 720+ | 90% (line up to $500,000) |
| Primary residence | 720+ | 90% (line up to $500,000) |
| Primary residence | 700+ | 75% (line up to $750,000) |
A primary residence at 720 or better can reach 90%, but only on a line up to $500,000. A line above $500,000 is primary-residence only and caps at 75% CLTV, which is why the last row shows a higher line size at a lower cap. Those are select-lender wholesale ranges, subject to lender guidelines and full file review. Other tiers sit lower. A primary residence at 640 and above, for example, tops out at 80%. The network figure for investment lines remains the 70% shown in the table.
Step 2: The borrower. This is where a HELOC differs most from a DSCR loan. A line is underwritten on you personally. The lender reviews your credit, your income, and your debts. The rental income can support the file, but your debt-to-income ratio and the new payment drive the decision.
On Lendmire’s network, the maximum DTI is 50%. It drops to 45% for credit profiles from 600 to 679, a tier that applies to primary residences, since second homes start at 640 and investment lines at 700. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you plan to use. A big unused line still counts against you.
Step 3: The property. Eligible types are single-family homes, 2-4 unit properties, PUDs, townhomes, and condominiums, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not eligible. For lines at or below $500,000, the lender ordinarily runs an automated valuation instead of a traditional appraisal. A full appraisal is required above $500,000 and can be requested at any size.
Step 4: The file history. A bankruptcy needs four years of seasoning from discharge or dismissal. On investment files, a foreclosure needs seven years. A deed-in-lieu, pre-foreclosure, or short sale needs four. In some states, a property listed for sale, or listed within the past 60 days, is ineligible.
A Worked CLTV Example
Say you own a rental worth 100% of its appraised value, and your first mortgage balance is 45% of that value.
On an investment line capped at 70% CLTV, the room is 70% minus 45%, which is 25% of the property’s value. That is the most the line can be, and it is still subject to the $500,000 line limit.
Now picture the same equity on a second home at 720 or better, where the cap reaches 90%. The room becomes 90% minus 45%, or 45% of value. The occupancy tier changes the answer more than the first mortgage’s rate does.
A few more rules shape how that room gets used:
- The smallest line is $25,000, though some states set a different floor.
- After closing, the minimum subsequent draw is $1,000 (Texas is $4,000) on programs that state a minimum.
- At least 75% of the line is drawn at closing. You do not get a large dormant line. You start paying interest on most of it right away.
The Draw Structures
Investment-property lines on this network run one structure only: a 5-year interest-only draw followed by a 25-year fully amortizing repayment. I’ll call that the 5/25 structure. Primary residences and second homes can also use a 3-year draw with a 17-year repayment, the 3/17 structure. Tennessee shortens both, to 3/12 and 5/10.
The cost floats through both phases and never converts to a fixed amount. The CFPB’s guide to home equity borrowing says HELOC rates can rise or fall after any initial fixed period. Meanwhile, your first mortgage stays at its original terms.
The end of the draw period is the risk to plan for. The CFPB’s HELOC explainer says you can generally spend up to your limit during the draw period, which could last 10 years, for example. After that, you enter repayment and can no longer borrow. Lenders may amortize the balance over ten or 20 years. Payments are often significantly higher, and in some cases the whole balance is due when repayment begins. Rent has to be able to absorb that step-up in the second payment.
Where the General Rule Breaks
LLC-held rentals. This is the sharpest edge. On this network, fee simple or leasehold title must sit with you or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A property already deeded to an LLC needs a vesting change before a line is possible. The other route is a DSCR cash-out, which can keep the entity on title, subject to lender program eligibility.
Big portfolios. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the other. An investor who owns more than 15 financed properties is not eligible.
Large cash needs. An investment line tops out at $500,000, and the 70% CLTV cap usually binds first. A cash-out refinance can reach further on a standard rental.
Primary-residence lines funding a purchase. Some investors draw on the equity in their own home instead. The lender then looks at the home’s tier, not the rental’s, and the collateral is your residence. A missed payment puts the home at risk, not just the rental.
A later refinance of the first mortgage. Refinancing your first loan while a second lien is in place means the line has to be paid off or subordinated. Plan for that before you borrow.
Where the line is offered. Lendmire arranges these HELOCs only in its 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 41-market DSCR footprint.
Before You Apply: What to Gather and Ask
Start with documents on the first mortgage. Lenders want a recent statement showing the balance and payment, and the note for any restriction on additional liens. You also need proof of the property’s current ownership and your own credit and income records.
The credit report must be no more than 90 days old at closing, and rescores are not allowed. The score comes from a single bureau, keyed to the primary wage earner. On the network’s longer-runway structure, which is the 5/25 draw above, housing history is also reviewed across all financed properties.
Then put these questions to any lender or broker:
1. Does this lender write investment-property lines, or only primary residences?
2. What is the CLTV cap for my occupancy and credit tier?
3. Does the line sit in second position behind my current loan?
4. Does the lender qualify me on the full line or only on what I draw?
5. What is the draw period, and what happens when it ends?
6. Can the property be titled the way I hold it today?
Asking these first saves you from a hard credit pull at a lender that was never going to write the file.
HELOC, Home Equity Loan, Cash-Out Refinance, or DSCR Loan
| Option | Your first mortgage | Underwritten on | Best fit |
|---|---|---|---|
| HELOC | Stays in place | You, personally | Staged needs, personally titled property |
| Home equity loan | Stays in place | You, personally | One lump-sum need |
| First lien HELOC | Replaced | You, personally | Not your goal here |
| DSCR cash-out refinance | Replaced | Property rent vs. payment | Larger needs, LLC title, portfolios |
A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. It is a different tool from a line. Most programs in Lendmire’s network cap a cash-out on a standard rental at about 75% LTV, with roughly 6 months of seasoning as the common expectation. A 1.00 coverage ratio is where many select programs start, and stronger ratios open better terms. A separate select-lender path takes coverage below 1.00 with leverage and terms adjusted.
Clearing 1.00 is not the same as positive cash flow. The ratio compares rent to the full housing payment only. Repairs, vacancy, management, utilities, and capital expenses sit outside it. The complete DSCR loans guide walks through how the ratio works.
Lendmire’s article Banks That Offer a DSCR HELOC While Keeping the Existing First Mortgage in Place covers the DSCR side of this question.
Common Misreadings
Any bank will give me a HELOC on a rental. Availability is limited, as NerdWallet notes, and many lenders write only primary residences.
A HELOC is free flexibility. The cost floats, and the payment can jump when the draw period ends.
My first mortgage is unaffected forever. The loan stays intact, but the second lien affects your combined leverage and any later refinance.
A HELOC is always cheaper than a cash-out. That is false. The line often wins when the draw is small relative to the first mortgage balance, but a large draw changes that comparison.
What the Investor Decision Looks Like
A line fits best when four things line up: your first mortgage has terms you want to keep, the property is titled to you personally, you have enough equity under the 70% investment cap, and your debt load clears the 50% DTI ceiling with the line counted at its full size.
It fits poorly when title sits in an LLC, when the cash need is large, or when you plan to refinance the first loan soon. In those cases, a DSCR cash-out refinance often works better.
Frequently Asked Questions
Can I have a HELOC and a first mortgage on the same property at the same time?
Yes. The HELOC is recorded in second position behind your first mortgage, which keeps its balance, term, and payment. The lender confirms that your combined loans fit its CLTV cap for your occupancy type. On Lendmire’s network, an investment property tops out at 70% CLTV.
Do I have to use the lender that holds my first mortgage?
No. A different lender can write the line, because it only needs to sit behind the first loan. Shopping across lenders is usually worthwhile, since each sets its own property and occupancy rules. A broker that works with several wholesale lenders can compare them in one pass.
Will my first mortgage’s interest rate limit how much I can borrow?
No. Your first loan’s rate does not change your borrowing room. The balance counts toward CLTV, and the payment counts toward your DTI. Those two numbers decide how much line you can get.
Can an LLC hold a property with one of these lines?
Not on this network. Title must sit with you personally or a revocable living trust. A property already in an LLC needs a vesting change, or a DSCR cash-out refinance may be the better route, subject to lender guidelines and file review.
What happens when the draw period ends?
You can no longer borrow, and the balance moves into repayment. On the 5/25 structure, that is 25 years of full amortization after five years of interest-only payments. The payment can rise significantly, so plan for that step before you draw.
If You Are Considering a Home Equity Line
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. You can reach the team at 828-256-2183 or request a quote. Programs change, and every file is underwritten individually, so nothing here is a commitment to lend.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage serving homeowners and real estate investors in its 16 full-service states. Home equity lines of credit are arranged through wholesale lending channels; Lendmire brokers the line and the lender underwrites each application under its occupancy-based 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
2. CFPB – Using home equity guide
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 an Investment Property HELOC for a Mortgaged Rental With a Fixed First · Banks That Offer a DSCR HELOC Alongside Your Current First Mortgage
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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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.