The Quick Read: Usually yes, when your first mortgage is cheap, you need a modest amount of cash, and a lender will write a line on the property, because a home equity line of credit (HELOC) leaves that mortgage untouched while a cash-out refinance replaces all of it. It flips when no lender offers a line on the rental, when you need a large lump sum, or when the property sits in an LLC. The real question is often who gets approved, not which product is cheaper.
- A HELOC adds a second loan behind your first mortgage. A cash-out refinance swaps the first mortgage for a new, larger one.
- On an investment property, the lines Lendmire arranges top out at 70% combined leverage with a 700 minimum credit profile, subject to lender guidelines.
- A DSCR cash-out, which qualifies the property’s rent against its payment, tops out around 75% LTV on standard rentals across most of the network.
- HELOCs are tested on you personally, so debt-to-income and individual title decide the outcome.
- The cheap first mortgage is worth protecting, but only if the second loan’s variable payment still fits your plan.
Key Terms Defined
You will see a few terms of art below. Here is each one in plain words.
CLTV (combined loan-to-value): Your first mortgage balance plus the new line, divided by the property’s value.
Second lien: A loan that sits behind your first mortgage. If the property is sold or foreclosed, the first loan is paid first.
Draw period: The stretch when you can borrow from the line, usually with interest-only minimum payments.
DTI (debt-to-income): Your monthly debts divided by your monthly income. HELOCs use it. DSCR loans do not.
PITIA: Principal, interest, taxes, insurance, and association dues. It is the full monthly payment a DSCR loan tests the rent against.
Seasoning: The waiting period a lender wants after you buy a property before it will do a cash-out loan. About 6 months is the common expectation.
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.
Why Does a Low First Mortgage Change the Answer?
A low first mortgage is an asset, and a HELOC protects it. A cash-out refinance reprices your entire balance at today’s cost of money. A HELOC reprices only the new money you borrow.
Picture a rental with a cheap first mortgage and a modest balance. A cash-out refinance throws away that cheap debt to get cash. Every dollar of the old balance now costs more. A HELOC leaves the old balance alone and charges the higher price only on the slice you draw.
The logic is simple arithmetic. A bigger loan at a higher cost means a bigger payment. On a rental, that bigger payment squeezes the margin between rent and debt.
The trade runs the other way on risk. The cash-out gives you one payment that does not move. The HELOC gives you a second payment that floats. You keep a stable low payment on the big balance and take variable risk only on the small one.
HELOC vs. Cash-Out Refinance at a Glance
| Factor | HELOC (second lien) | Cash-out refinance |
|---|---|---|
| What it does | Adds a second loan | Replaces the first mortgage |
| Your current mortgage | Stays as is | Paid off by the new loan |
| How you get funds | Draw as needed | One lump sum |
| Payment type | Floats, never converts to fixed | Usually fixed |
| Qualified on | You: credit, DTI, equity | Rent (DSCR) or you |
| Title | Individual or revocable trust | LLC often possible |
Pricing on the HELOC lines in the network floats through both the draw and the repayment period. It never converts to fixed. That one fact should shape how much you borrow.
The Catch: Rental Lines Are Harder to Get
On a rental, the first hurdle is simply finding a lender. Experian says you can get a HELOC on an investment property, but it is generally harder to qualify and not every lender offers one. NerdWallet says the same: not all lenders offer them, and the requirements are strict.
Across the wholesale network Lendmire places files with, an investment-property line looks like this. These ranges are typical, and each file is reviewed individually.
- Leverage: 70% CLTV, with no tier above it on an investment property.
- Credit: a 700 minimum.
- Line size: up to $500,000 total.
- Structure: a 5-year draw followed by a 25-year repayment, fully amortizing.
- Draw at closing: at least 75% of the line.
- DTI: 50% maximum, tested on the interest-only payment at the maximum draw.
- Title: an individual or a revocable living trust. LLCs cannot hold title on these lines.
- Portfolio limits: an investor with more than 15 financed properties is not eligible.
Market surveys report that investment-property HELOCs commonly cap near 80% of value, per Experian. On the lines Lendmire arranges, an investment-property line tops out at 70% CLTV. Treat the market figure as a broader statistic, not as what this network offers.
HELOC availability through Lendmire is also narrower than its DSCR reach. The HELOC lines are limited to the 16 states where Lendmire runs full-service mortgage operations, while its DSCR investor programs cover 41 markets, including Washington, D.C.
Valuation is usually light. Lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal. A higher CLTV may call for a secondary valuation, and you can always request a full appraisal.
What About a Line on Your Own Home or Second Home?
Many investors fund the next rental with equity from the home they live in. The ceilings are higher there, but they are tiered by credit and occupancy.
On a primary residence, a 720 credit profile or better can reach 90% CLTV on lines up to $500,000. At 700 the ceiling is 85% on lines up to $500,000. At 640 it is 80%, and at 620 it falls to 70%. The program floor is 600.
On a second home, 90% CLTV also requires 720 or better. The floor is 640, and the maximum line is $500,000.
A primary-residence line can go as high as $750,000, but only at up to 75% CLTV, with a stronger credit profile and a full appraisal. Primary and second-home lines come in two draw structures. One is a 3-year interest-only draw with a 17-year repayment. The other is a 5-year draw with a 25-year repayment.
Using your own home’s equity does put your residence behind a variable-cost second loan. That is a real tradeoff, and it belongs in the decision.
How a DSCR Cash-Out Refinance Works Instead
A DSCR cash-out refinance is the usual answer when the HELOC route closes. DSCR stands for debt service coverage ratio. You divide the property’s monthly rent by its full monthly obligation, the PITIA. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
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. Your personal DTI is not the test.
Here is what the network typically looks like on a standard rental cash-out. For a deeper walk-through, see Lendmire’s complete DSCR loans guide.
- Leverage: cash-out tops out around 75% LTV on standard rentals. On short-term-rental collateral, the cash-out ceiling is 70%.
- Seasoning: about 6 months is the common expectation.
- Coverage: 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Stronger ratios open better pricing and leverage.
- Credit: a 620 floor exists in parts of the network. Most programs want around 660, and 700+ unlocks the strongest tiers.
- Loan size: up to $3,000,000 on standard programs (smaller balances available through select lenders).
- Reserves: commonly around 6 months of PITIA. They vary by lender, leverage, and loan size, and some conservative files can see them waived.
- Title: LLC borrowers are commonly accepted, subject to lender program eligibility.
Clearing 1.00 does not mean the property cash flows. DSCR compares rent to PITIA only. Repairs, vacancy, management, utilities, and capital expenses sit outside the calculation.
The structural contrast with a HELOC is the point. A HELOC asks whether you qualify. A DSCR cash-out asks whether the property carries the new payment. The catch is that the rent gets retested against a bigger payment, so a cheap old loan replaced by a costlier one can shrink coverage.
Three Scenarios Where the Answer Flips
These examples use modeled assumptions, not market data. They show percentages and coverage ratios only.
Scenario one: a modest, uncertain need. Say you own a rental with a first mortgage near 40% of its value. You want a cushion for repairs and maybe a down payment later. You have a 720 credit profile and individual title. A HELOC fits. You borrow only what you use, the cheap first mortgage stays, and the cost floats only on the slice you draw.
Scenario two: LLC title and a big portfolio. Run the numbers on a rental held in an LLC. Assume the current rent covers the existing payment at about 1.5x. An investment HELOC is off the table, because LLCs cannot hold title on these lines. A DSCR cash-out replaces the old balance with a larger, costlier one. Assume coverage drops toward 1.1x. That is still above 1.00 on this model, but lender guidelines, credit, and reserves decide the outcome. This is where DSCR cash-out earns its place.
Scenario three: a large one-time need. Picture an investment property with a first mortgage at 55% of value. A HELOC on this network stops at 70% CLTV, which leaves room for about 15% of value. A DSCR cash-out at 75% LTV on a standard rental leaves room for about 20% of value. If your need is bigger than the line allows, the refinance wins by default. A hybrid also works for some investors: refinance up to the level where the payment still feels comfortable, then add a line on the remaining equity. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
When the HELOC Is Smarter
- Your first mortgage is cheap and the balance is meaningful.
- Your need is small, phased, or uncertain.
- You can pay the line down within a defined horizon.
- You hold title personally or in a revocable trust.
- You have DTI room and a credit profile that fits the tier.
When the Cash-Out Refinance Still Wins
- You need a large lump sum for an identified use, such as the next purchase.
- No lender will write a line on the rental.
- The property sits in an LLC.
- You own many financed properties, and DTI is your constraint.
- You want one fixed payment instead of a floating second one.
- Your existing mortgage is no longer cheap, so there is little to protect.
The Risks Nobody Leads With
Variable cost is the first risk. The CFPB’s HELOC brochure notes that with a variable rate, monthly payments may change even if you do not draw more money.
Payment reset is the second. Many lines let you pay interest only during the draw, and the brochure says nothing goes toward principal in that case. Once the draw ends, repayment begins. The same brochure says the lender may set a schedule to repay the full amount, often over ten or 15 years.
NerdWallet describes a market pattern of a 10-year draw and repayment up to 20 years. On the investment lines in this network, the structure is a 5-year draw and a 25-year repayment. Either way, plan for the day the payment steps up.
Collateral is the third. A HELOC is a second mortgage with the property as security. Experian points out that the lender could foreclose if you fall behind.
Read the agreement for the lender’s right to reduce or freeze the line. Do not build a plan that only works if the full line stays open.
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.
Time Horizon and the Exit Plan
A refinance carries closing costs, and a longer hold helps you recover them. If you plan to sell or refinance again soon, a HELOC’s lower upfront cost can win. If you plan to hold for many years, one fixed payment may be worth more than a cheap-but-floating second loan.
HELOC now and refinance later is a legitimate path. You borrow against the equity today, then refinance when your needs or the market change. The cost is that you may pay closing costs once and still carry a variable payment in between.
Quick Decision Checklist
- Is your first mortgage cheap enough that replacing it would hurt coverage? Lean HELOC.
- Is title in an LLC? Lean DSCR cash-out.
- Do you need more than the line size or CLTV ceiling allows? Lean DSCR cash-out.
- Are you close to the limits on DTI or number of financed properties? Lean DSCR cash-out.
- Is your need small and uncertain? Lean HELOC.
- Is your answer mixed? Run both numbers side by side before choosing.
When two answers point different ways, pull the first mortgage balance, the property value, your credit profile, and how the property is titled. For a related walk-through, see Lendmire’s piece Second-Lien HELOC vs Cash-Out Refinance for a Low Fixed Mortgage. Lendmire also covers how a HELOC compares with a cash-out refinance when you have a low first mortgage.
Frequently Asked Questions
Can I do a cash-out refinance and keep my current mortgage?
Not on the same property. A cash-out refinance pays off the existing first mortgage and replaces it with a new one. To keep the old loan, you need a second-lien product, such as a HELOC, that sits behind it.
Which is cheaper overall?
It depends on the size of the draw and how long you hold. A small draw usually favors the HELOC because only the new money is repriced. A large draw, or a very long hold, can tilt toward one fixed payment on a refinance.
What if HELOC costs rise?
On the lines in this network, pricing floats through the draw and the repayment period and never converts to fixed. Your payment can rise even if you borrow nothing more. Stress the plan against a higher payment before you sign.
Can I get a HELOC on an LLC-owned rental?
Not on these lines. Title must be held by an individual or a revocable living trust, and LLCs, corporations, and partnerships cannot hold it. A property already in an LLC would need a vesting change or a DSCR cash-out instead.
Does a HELOC affect my first mortgage?
It does not change the first mortgage’s terms. It adds a second lien and a second payment, and your combined leverage rises. A larger line also uses up personal DTI room, which can limit later conventional borrowing.
Next Step
If you are weighing a home equity line against a cash-out refinance 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 is a mortgage broker that arranges financing through select lenders in its wholesale network. All figures are subject to lender guidelines and full file review, and nothing here is a commitment to lend.
Investors weighing their equity options can start with Lendmire’s guide to cash-out refinance on an investment property.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Experian: Can you get a HELOC on an investment property?
2. NerdWallet: Can you get a HELOC on an investment property?
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: Cash-Out Refinance vs HELOC for a Renovation on a Mortgage Worth Keeping · Conventional Cash-Out Refinance vs HELOC for an FHA Borrower · Cash-Out Refinance vs HELOC Resubordination for Credit Card Debt
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.