The Quick Read: It depends on which property secures the old line and whether a first mortgage stays in place: a DSCR HELOC on the rental can replace an old HELOC on that same rental, up to 70% combined loan-to-value on a second lien, while a DSCR cash-out refinance follows its own, separate leverage rules. Every figure below is a ceiling or floor, subject to underwriting, and never an offer.
- Second lien (you keep your first mortgage): up to 70% combined loan-to-value at a 720 credit score or better, on lines of $50,000 to $500,000.
- First lien (the rental has no mortgage): up to 75% loan-to-value at 740 or better and 70% from 700 to 739 on lines to $500,000. Above $500,000, the ceiling is 65%.
- The coverage test sizes the line too. The rental’s rent must cover a stress payment on the entire credit limit at 1.10x or better.
- At least 80% of the line is drawn at closing. You cannot treat it as an unused standby cushion.
- A DSCR HELOC cannot refinance a HELOC on your own home. The old line has to sit on the rental. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
Two Products Hiding in One Question
The title mixes two different products, so answer both halves separately. A DSCR HELOC is a revolving line of credit on a rental, qualified on the property’s rent instead of your personal income. A DSCR loan, in the sense most investors mean it, is a fixed-balance first mortgage that also is reviewed on rent.
You can pay off an old HELOC in two ways. The first is to replace it with a new DSCR HELOC on the same rental. The new line sits as a standalone second lien behind the first mortgage you keep, or as a standalone first lien if the rental has no mortgage. Your first mortgage stays untouched.
The second way is a DSCR cash-out refinance. A new first mortgage pays off the old first mortgage and the old HELOC together. The borrowing limit then follows that program’s leverage rules, not the HELOC’s.
Paying off a HELOC inside a new first mortgage is generally treated as cash-out, even if no money reaches your hands. Across the wholesale network Lendmire places files with, a second lien that was not used to buy the property makes the refinance cash-out. That includes a line drawn for renovations or personal use.
The rent qualifies the file either way: no traditional personal-income documentation, W-2s or personal income calculation, subject to lender guidelines. DSCR products are built for non-owner-occupied investment property. Lendmire is a mortgage broker and arranges these through select lenders. The lender reviews and decides.
For the broader picture, Lendmire’s complete DSCR loans guide covers how rent-qualified lending works across every structure.
Key Terms Defined
DSCR (debt service coverage ratio): monthly rent divided by the monthly debt payment. A result of 1.10x means rent covers the payment with 10% to spare.
Lien: a lender’s legal claim on the property. A first lien gets repaid first, a second lien second.
CLTV (combined loan-to-value): the first mortgage balance plus the new line, divided by the property’s value. Second-lien limits are written this way. First-lien limits are plain LTV.
Subordination: an agreement where an older lien holder agrees to stay behind a new loan. It can only be requested. The older lender decides.
Full limit versus drawn balance: the full limit is the most a line lets you borrow. The drawn balance is what you currently owe. An open line can count at its full limit until it is paid off and closed.
Seasoning: the waiting period a lender wants after you buy or refinance a property.
How Much Can You Borrow?
The ceiling on a DSCR HELOC comes from three limits, and the lowest one wins: the leverage cap, the coverage test, and the program’s line-size range. Start with leverage, because it usually binds first.
The formula for a second lien is simple. Take the CLTV cap times the property’s value, then subtract your first mortgage balance. That is the most the new line can be before the other tests apply.
| Lien position | Credit score | Max leverage | Line size |
|---|---|---|---|
| Second lien | 720+ | 70% CLTV | $50,000 to $500,000 |
| First lien | 740+ | 75% LTV | Up to $500,000 |
| First lien | 700 to 739 | 70% LTV | Up to $500,000 |
| First lien | 720+ | 65% LTV | $500,000 to $1,000,000 |
Three details matter here. First, there is no second-lien tier below 720. If you keep a first mortgage and score 700 to 719, this program has no second-lien cell for you. A first lien exists only on a rental with no mortgage, and its floor is 700. Second, a declining-market flag on the property lowers the ceiling by 5 points. Third, the program pairs the line with a closing draw of at least 80%, and that draw is never under $50,000.
The coverage test is where many investors get surprised. Rent must cover the payment at 1.10x or better. That payment is a fully amortizing one on the entire credit limit at the start rate plus 2 percentage points. It is principal and interest only, and taxes and insurance are not part of it.
Notice the phrase “entire credit limit.” A bigger line means a bigger stress payment against the same rent. Coverage shrinks as the line grows, whether or not you plan to draw it all. For a rental with thin rent, the coverage test, not the 70% cap, often sets the real maximum.
Rent is the lesser of the appraisal’s market rent and the lease, unless three months of receipts support a lease above market. A lease must be in place. A two-to-four-unit property can have at most one vacant unit.
On a second lien, confirm on the file how the lender treats the first-mortgage payment in its coverage calculation. Do not assume it is in or out. The lender’s own calculation governs.
Three Scenarios, in Percentages
These are modeled assumptions, not market data. Dollar figures are left out on purpose, since leverage is a percentage of value.
Scenario one: free-and-clear rental. The old HELOC was the only lien, and your score is 740 or better. You are on first-lien terms, with up to 75% LTV on lines to $500,000. The new line pays off and closes the old HELOC out of the closing draw. Whatever the new line leaves beyond that payoff is your usable equity, within the coverage test. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
Scenario two: first mortgage kept. Say your first mortgage sits at about 50% of value, the old HELOC at about 10%, and your score is 720 or better. Because the new line replaces the old one, CLTV is the first mortgage plus the new line, not plus the old HELOC as well. Under the 70% cap, the room is about 20% of value. The old HELOC’s balance comes out of that first, so about 10% of value is left beyond the payoff, before closing costs.
That is why replacing the old line, instead of stacking a new one behind it, is how the equity gets reused. A second-lien program will not write a third lien.
Scenario three: cash-out replaces both liens. Here a new first mortgage retires the first mortgage and the HELOC together. The DSCR HELOC’s 70% CLTV limit no longer applies. This product’s own cash-out rules do, and those rules are generally tighter on short-term rentals than on standard long-term rentals. Confirm the leverage for your property type on the file.
There is a tradeoff to weigh. A cash-out reprices the entire balance, not just the new money. If your first mortgage is a bargain, a second lien usually keeps that benefit. If your first mortgage is expensive, the cash-out may be worth a look.
Which Property Secures the Old HELOC?
This question decides the whole file. A DSCR HELOC is only written on a non-owner-occupied rental, never on the owner’s own home or a second home.
| Old HELOC secured by | Can a DSCR HELOC pay it off? |
|---|---|
| The rental itself | Yes, if rent and equity support it |
| Your primary home | No. Renew it, or fund a payoff from rental equity |
| A different rental | Only through that property’s own file |
Many investors pulled equity from their home to buy rentals. If that is you, the home HELOC is a separate product on a different collateral, and rental financing cannot release it. The workaround is to use rental equity, through a new line or a cash-out on a rental, to pay down that home balance. That is a funding decision, not a refinance of the home line.
Payoff, Subordinate, or Cash-Out
An older HELOC creates a sequencing problem. If you refinance the first mortgage, the old HELOC would slide into first position. New lenders will not write a first loan that starts out in second place.
You have two clean options. The HELOC is paid off inside the new loan, or its lender signs a subordination agreement. According to the CFPB’s consumer guidance on HELOCs and refinancing, your HELOC lender’s approval may be needed to refinance the first mortgage, and the lender can refuse. In that case you may need to pay off the HELOC.
| Path | What happens to the old HELOC |
|---|---|
| Replace with a DSCR HELOC | Paid off and closed; first mortgage stays |
| Subordination | Stays open; its lender must agree |
| DSCR cash-out refinance | Paid off inside the new first mortgage |
A subordination is more realistic on a modest, lower-leverage refinance than on a maximum-leverage cash-out. An old subordination agreement does not carry over to a new first loan, so it must be requested again. A good payment history does not obligate the old lender to agree, and your new lender can only ask.
What the File Looks Like
A few program mechanics shape how much of the equity you can actually reach.
Valuation. Lines up to $400,000 use an automated valuation (confidence score of 85 or better) with a property inspection report, or a full interior appraisal. Lines above $400,000 require a full interior appraisal. Appraisal waivers are not accepted.
Seasoning. A rental bought or refinanced inside the last 6 months is not eligible (that clock runs from the last note date to the new note date), and the owner must have held title for 6 months (settlement date to note date).
Credit. There can be no 30-day mortgage late in the last 12 months. A bankruptcy, foreclosure, short sale or deed-in-lieu needs 48 months behind it. The score used is the lender’s own report.
Reserves and cash to close. None are required by the program.
Exposure. A borrower can carry at most 5 loans or $2,500,000 with the program.
Vesting. An LLC can hold title, subject to lender program eligibility, with its members signing as guarantors.
Eligible property. Single-family, PUDs, townhomes, two-to-four units and condominiums qualify. Rural-designated property, row homes, condotels, leaseholds, land trusts, mixed-use, a property listed for sale in the prior 2 months, and a property with a solar lien are outside it.
Borrowers. U.S. citizens, permanent residents, and non-permanent residents with a Social Security number are eligible. Foreign nationals and ITIN borrowers are not.
This program is offered through Lendmire in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
Step by Step: Sizing and Paying Off the Old Line
1. List every lien. Write down the first mortgage balance, the old HELOC’s full credit limit (not only what you have drawn), and the property’s value.
2. Confirm what secures the old HELOC. If it sits on your home or another rental, stop and use the table above.
3. Compute CLTV. Add the first mortgage balance and the proposed new line, divide by value, and compare to the 70% cap.
4. Run the coverage test. Divide rent by the stress payment on the full limit. If it falls under 1.10x, shrink the line until it clears.
5. Pick the path. Replace the old line, ask for subordination, or move to a cash-out.
6. Plan the draw. At least 80% of the new line is drawn at closing. If your old balance is small, the draw may exceed the payoff, and you carry that extra balance.
7. Check title. Title work covers every lien, and the old line must actually be closed, not just emptied.
Payment Stacking and Other Investor Risks
The DSCR ratio tests the rental’s rent against the line’s stress payment. Your bank account still has to cover the real payments. The line is variable-rate, so according to the CFPB’s HELOC brochure, payments can change even if you draw nothing more. The same brochure notes that payments often rise significantly once repayment starts, which is a common reason investors want to refinance an older line.
If your old HELOC is entering repayment and the CLTV test fails, the options are bringing outside cash to close the gap, a combined DSCR cash-out, or a sale.
A cash-out has a separate cost. It gives up the old first mortgage’s terms, and a larger cash-out raises the payment and lowers coverage. Rent that clears comfortably before can land close to the floor afterward.
Tax treatment can depend on how the funds are used and how the property is held; borrowers should keep clear records and speak with a qualified tax professional before relying on any deduction.
When Not to Refinance the Old Line
Skip the refinance in a few situations. If your old HELOC sits on your home, a DSCR product is the wrong tool. If your first mortgage is a bargain, a cash-out gives it up. If the line is only a short bridge you plan to repay from a sale, a new line with a mandatory 80% draw adds balance you do not need.
Some products marketed as a DSCR HELOC are actually cash-outs, or lines tested on personal income. Confirm the lien position and what the loan is qualified on before you compare numbers.
For two related walkthroughs, see Lendmire’s piece How to Use an Investment Property HELOC to Refinance an Existing HELOC Into a DSCR Loan and its explainer on how an investment property HELOC works when it replaces an existing line.
Frequently Asked Questions
How much can I borrow on a DSCR HELOC if I keep my first mortgage?
Up to 70% combined loan-to-value at a 720 score or better, on lines from $50,000 to $500,000. Multiply 70% by the property’s value, then subtract your first mortgage balance. The rent must also cover the stress payment on the whole line at 1.10x or better, so thin rent can lower the answer. All figures are subject to underwriting.
Does the old HELOC count at its full limit or its drawn balance?
Treat it at its full limit until it is paid off and closed. An open line can count as a lien at the amount it permits, so a half-drawn line can still crowd your leverage. Once the new loan pays it off and closes it, only the new line counts toward CLTV.
Can a DSCR HELOC refinance a HELOC on my own home?
No. This line is written only on a non-owner-occupied rental, never on your primary residence or a second home. A HELOC secured by your home needs a different solution, such as renewing it or paying it down with rental equity.
How long must I own the rental first?
Two six-month clocks apply: the line is not available on a rental bought or refinanced in the last 6 months (last note date to new note date), and title must have been held for 6 months (settlement date to note date). If either clock is still running, wait before applying.
Does paying off a HELOC inside a cash-out count as cash-out?
Generally yes, even if no check reaches you. When the old line was not used to buy the property, the payoff makes the refinance cash-out, and that program’s own leverage rules apply. Confirm the treatment on your file, since programs differ.
Next Step
If you are considering a home equity line on a rental property and want to see how the numbers work, Lendmire can help you compare DSCR HELOC options based on the property, the rent, the equity available, credit profile, combined leverage, and your goals. Reach the team at 828-256-2183.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker that arranges investor financing, including DSCR HELOCs on rentals, through select lenders in its wholesale network. The lender reviews and decides each file. Nothing here is a commitment to lend. 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. CFPB’s consumer guidance on HELOCs and refinancing
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: DSCR HELOC Requirements for Sizing How Much Equity to Borrow · How Much Can You Borrow on a DSCR HELOC Without Changing the Deed? · How Much Can You Borrow on a DSCR HELOC as a Trucker With Equipment Costs?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.