The Quick Read: Yes, a new first-lien refinance can be sized to pay off both your existing first mortgage and your HELOC, and any equity left under the leverage cap after payoffs and closing costs comes back to you as cash, but on a rental property that loan is usually a DSCR cash-out refinance rather than an agency conventional loan.
- The new loan replaces both old liens. It does not merge them.
- Cash back is whatever room is left under the leverage cap after both payoffs and closing costs.
- Rent coverage on the larger payment can limit the cash even when equity is plentiful.
- A HELOC secured by your home, not the rental, is not paid off by a DSCR loan on the rental.
- A low-cost legacy first mortgage is the main reason to leave the first alone.
How Combining Actually Works
The new loan pays off the first mortgage and the HELOC at closing, and you are left with one lien and one payment. Nothing is blended. Two old debts are retired by one new debt.
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 describes a HELOC as a second mortgage repaid on top of your home loan. It describes a cash-out refinance as replacing the original mortgage with a new loan larger than what you owe. Put those two ideas together and you have the combine.
The sequence on a rental file runs like this:
1. Request a current payoff statement for the first mortgage and one for the HELOC. The new loan has to cover both.
2. Order an appraisal. Value sets the ceiling, and on an investor loan the appraisal also reviews market rent.
3. Size the loan: first payoff, plus HELOC payoff, plus closing costs, all under the leverage cap.
4. Test rent against the new, larger payment.
5. Close, pay off both liens, and have the HELOC closed so it cannot be redrawn.
6. Receive any remaining cash as a lump sum, net of costs.
Because the HELOC is paid off at closing, no subordination agreement is needed. That is the cleanest feature of this path.
What Does “Conventional” Mean for a Rental?
Most investors who ask this question mean one of two things. Some mean an agency conforming loan, the kind sold to the government-sponsored mortgage market. Others simply mean a standard, non-FHA refinance.
For a rental, the investor-oriented version is a DSCR cash-out refinance. Across the wholesale network Lendmire works with, this loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Personal debt-to-income is not the main test. DSCR loans are designed for non-owner-occupied investment properties, and they are reviewed differently from a standard owner-occupied mortgage.
If your file only works as an agency loan, the rules are different and stricter about HELOCs. The agency contrast is covered below.
Can You Really Get Cash Back?
Yes, but only if there is room under two separate ceilings. Equity sets the first ceiling. Rent coverage sets the second. The lower of the two decides your cash.
The equity ceiling. Cash-out refinances on rentals top out around 75% loan-to-value across most of the network. Most files also expect about 6 months of seasoning, meaning you have owned the property or held the current loan for roughly that long. Seasoning rules vary by lender, so treat that as a typical expectation and not a promise.
The rent ceiling. The DSCR compares monthly rent to the full monthly obligation: principal, interest, taxes, insurance, and any HOA dues. Folding a HELOC into the new loan enlarges the balance, and the larger payment pushes coverage down. Many select programs start at a 1.00 coverage ratio, and stronger ratios open better pricing and leverage. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted.
Here is how that plays out. Say a rental has a first mortgage equal to 45% of its appraised value and a HELOC secured by the rental equal to another 15%. Together that is 60%. At a 75% cash-out ceiling, the remaining room is 15% of value, and closing costs come out of that before anything reaches you. Now suppose the larger balance drops rent coverage under the program’s floor. The lender may cap the loan below 75%, and your cash shrinks accordingly. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
This is why a property with lots of equity and thin rent can disappoint. The reverse also happens. Strong rent with a modest equity cushion can produce a clean file with little cash back.
One more caution. Clearing 1.00 is not the same as positive cash flow. The DSCR measures rent against the housing payment only. Repairs, vacancy, management, utilities, and capital expenses sit outside the calculation.
Key Terms Defined
HELOC: A revolving line of credit secured by property, usually in second position behind the first mortgage.
Cash-out refinance: A new loan larger than the balance it pays off, with the difference paid to the borrower.
CLTV: Combined loan-to-value, which adds every lien on the property and divides by its appraised value.
Subordination: An agreement in which a junior lienholder allows a new loan to sit ahead of it.
DSCR: Debt service coverage ratio, meaning monthly rent divided by the full monthly obligation on the property.
Seasoning: The length of time you have held the property or loan before a lender treats it as eligible for cash-out.
The Exception Investors Miss: Where the HELOC Is Secured
A DSCR loan on a rental pays off a HELOC only if that rental secures the HELOC. Many investors drew on their personal residence to buy or fix rentals. That line is a lien on the home, and a refinance of a different property cannot retire it.
So the first question to answer is plain: which property does the HELOC sit on? If it is the rental, combining works as described above. If it is your primary home, you have three realistic choices. You can keep the line, pay it down from the cash-out on the rental, or refinance the home separately.
The same logic applies in the other direction. Suppose your HELOC is on a rental, but that rental is deeded to an LLC. Home equity lines on investment property generally cannot be held in an LLC, while a DSCR cash-out generally lets the entity stay on title, subject to lender program eligibility. Retitling just to qualify for a line can disturb the existing first mortgage, so check before you move a deed.
Paying Off the HELOC vs. Keeping It
You do not have to pay off the HELOC when refinancing the first. You only have to deal with it. Dealing with it has two forms: payoff or subordination.
According to the CFPB, you may need approval from your HELOC lender to refinance your first mortgage, and if that lender refuses, you may need to pay off the HELOC. Subordination hands the HELOC lender a veto. It is also harder to obtain when the refinance is a cash-out, because the first-lien balance grows ahead of the line.
Paying the HELOC off inside the new loan sidesteps the consent problem. The old line is closed, its lien is released, and the new first lien stands alone. For most investors who want cash out anyway, this is the practical route. Lendmire’s piece How to Combine a First Mortgage and a HELOC Into One Conventional Loan covers the payoff-versus-subordination decision in more depth.
Your Options Side by Side
| Option | What happens to the HELOC | Best fit |
|---|---|---|
| DSCR cash-out paying both | Paid off and closed at closing | Rent covers the larger payment |
| Refinance first, keep HELOC | Needs lender consent | Rare; lender can refuse |
| Refinance only the HELOC | First stays untouched | Low-cost first mortgage worth keeping |
| Leave everything alone | Variable payment continues | Small balance, short horizon |
The second row is the least reliable. Few lenders will place a new mortgage in a junior position, and the line holder decides. The third row is the one investors overlook, and it comes up again below.
The Agency Contrast, Briefly
Agency conforming rules treat HELOCs more strictly than DSCR programs do. Under the Fannie Mae Selling Guide, only subordinate liens used to purchase the property may be paid off in a limited cash-out refinance. A HELOC drawn for any other purpose makes the loan a full cash-out refinance.
Those rules govern agency loans and do not govern DSCR loans. They matter here because many investors assume a payoff-only refinance escapes the cash-out label. On an agency file it often does not.
Even in the non-agency world, labeling is lender policy. A straight payoff is generally treated as a rate-and-term refinance. Any cash beyond the payoff turns it into a cash-out. A stale payoff statement can push you over that line, because a few hundred dollars returned at closing can change the label. That brings stricter leverage and seasoning. Ask for an updated payoff figure close to closing.
Should You Combine, or Keep Your First?
Combine when the first mortgage is not cheap, the HELOC payment floats upward, and you want one clean lien. Keep the first when it is a low-cost legacy loan, because a cash-out refinance reprices the whole balance and not just the new money.
NerdWallet notes that borrowing a small share of equity may favor a second mortgage, since you avoid heavy refinance closing costs. A large draw can favor the refinance. The size of the HELOC balance relative to the first is the deciding variable.
Think of it in three profiles:
- An investor with a small HELOC balance and a low-cost first. Replacing only the HELOC usually wins. Resetting the first to remove a small line is expensive for what it fixes.
- An investor with a large HELOC balance, a first at roughly market cost, and a draw period about to end. Combining usually makes sense. The floating payment is about to become a fully amortizing one, and one fixed-structure loan can be easier to plan around.
- An LLC-held portfolio with several rentals. DSCR is often the only practical lane. The loan fits the entity title, the documentation basis is rent, and the loan size usually sits well above what a line can provide.
For the investment-line alternative itself, the network’s home equity lines on investment property cap at $500,000 total, run to 70% CLTV, and generally want a 700 credit profile. Those lines are not offered in every state where DSCR financing is, because they are brokered only in Lendmire’s full-service states. Terms vary by borrower and property.
Also weigh these costs before replacing a first mortgage:
- Closing costs on the new loan.
- Any prepayment charge on the old first.
- A reset of the term, which can lower the payment while raising total interest.
A lower payment is not the same as lower cost. If a new loan feels cheaper only because it stretches the term, the savings are mostly cosmetic.
What Lenders Look For
On most DSCR cash-out files placed through the network, the review covers these items:
- Credit: A 620 floor exists in parts of the network. Most programs want around 660, and 700 or better unlocks the strongest leverage tiers.
- Loan size: Loans of up to $3,000,000 are standard on most programs, with smaller balances available through select lenders. Above $2,500,000 the network generally holds to 30-year fixed structures.
- Reserves: Commonly around 6 months of PITIA, but they vary by lender, leverage, loan size, and transaction type. Loans above $1,500,000 typically step up to about 9 months.
- Property type: Single-family and small multifamily rentals are the usual fit. Manufactured homes, log homes, and barndominiums are not offered.
- Appraisal: It sets value and tests market rent.
- Structure options: The spine is the 30-year fixed. Select lenders in the network also offer 40-year terms and interest-only periods.
A larger down payment or more equity lowers the payment and can lift the coverage ratio. It never erases the leverage cap, the credit floor, the reserve rules, or property eligibility. The strongest files clear both tests, enough equity and enough rental coverage. Lendmire’s complete DSCR loans guide walks through each of those tests in detail.
Common Mistakes
Assuming the HELOC lender has no say. That is true only if the line is paid off at closing. If it stays, you need consent.
Assuming the rental loan can retire a HELOC on your home. It cannot, unless the rental secures the line.
Sizing the loan to the maximum leverage. The highest cash-out amount is not always the right one. If coverage ends up barely above the floor, one vacancy can turn the property cash-negative.
Ignoring the old first mortgage. Replacing a low-cost first to remove a small HELOC is often the most expensive way to solve a small problem.
Forgetting that the line must actually close. A payoff statement alone does not end the account. The HELOC should be closed and its lien released so nothing can be redrawn.
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.
Frequently Asked Questions
Can I combine a HELOC and a first mortgage into one loan on a rental?
Yes, if the rental secures both liens. A new cash-out refinance is sized to pay off both balances at closing, and the old HELOC is closed. On rentals, that loan is commonly a DSCR cash-out refinance, subject to lender guidelines and full file review.
How much cash will I get back?
It is whatever remains under the leverage cap after both payoffs and closing costs, and only if rent covers the larger payment. Cash-out refinances across most of the network top out around 75% loan-to-value on standard rentals. Rent coverage can reduce that amount, so equity alone does not set the number.
Does the HELOC lender have to approve the refinance?
Only if the HELOC stays in place. Paying it off at closing removes the consent requirement, though a payoff and lien release are still required. If you want to keep the line, expect the lender to decide whether to subordinate, and it may refuse.
What if my HELOC is on my home and not the rental?
A DSCR loan on the rental cannot pay it off. You would need to pay it from the cash-out proceeds, keep it, or refinance the home separately. Which of those makes sense depends on the leverage on each property and your goals.
Is a limited cash-out refinance possible if the cash goes only to the HELOC?
On an agency loan, usually not unless the HELOC was purchase-money. In the non-agency world, a straight payoff is generally treated as rate-and-term, and any cash above that makes it a cash-out. The line is set by lender policy, so confirm it before you rely on the label.
If you are weighing a home equity line against a cash-out refinance and want to see how the numbers work, Lendmire, a mortgage broker arranging DSCR investor financing across 41 markets, including Washington, D.C., can help you compare options based on the property, the equity available, credit profile, combined leverage, and your goals. Programs, leverage, and terms are subject to lender guidelines and full file review, and nothing here is a commitment to lend. Investors can reach the team at 828-256-2183 or request a quote through the site’s quote page.
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.
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References
1. NerdWallet: Home equity loan vs. cash-out refinance
2. CFPB Ask CFPB: Does a HELOC affect my ability to refinance my first mortgage loan?
3. Fannie Mae Selling Guide B2-1.3-02: Limited cash-out refinance transactions
This article is part of Lendmire’s home equity line of credit program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Conventional Refinance Requirements to Combine a Mortgage and a HELOC · How Much a Conventional Refinance Finances When Combining a HELOC · Is A DSCR Loan A Conventional Loan? The Non-QM Distinction
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.