The Quick Read: The line equals the rental’s value times the combined loan-to-value ceiling, minus the first mortgage balance, and it is capped at $500,000 on a second lien. Through select programs in Lendmire’s wholesale network, a second lien behind a kept first mortgage typically reaches up to 70% combined loan-to-value at a 720 credit score or better, subject to underwriting.
- The first mortgage stays in place, and the new line sits behind it as a second lien.
- Rent qualifies the line at a minimum 1.10x coverage on a stress payment over the whole line, not the owner’s income.
- The combined ratio counts the full credit limit, not only what you draw.
- A score below 720 leaves no second-lien option, and a rental bought or refinanced in the last 6 months is not eligible.
Lendmire is a mortgage broker. It arranges these lines through a wholesale lender, and the lender makes every approval decision. Figures here are ceilings and floors, not offers, and every file is underwritten individually.
What Is a DSCR HELOC, and What Happens to the First Mortgage?
A DSCR HELOC is a revolving line of credit on a non-owner-occupied one-to-four-unit rental. It is reviewed on the property’s rent rather than the owner’s personal income. If you keep a first mortgage, the line is written as a standalone second lien behind it. Your first loan is not touched, refinanced, or repriced.
Because you still owe on the original loan, the second lien is your lane.
The federal consumer finance regulator describes a home equity line behind an existing mortgage as a second mortgage you pay in addition to the first. That is the same basic structure here, with the rental’s rent doing the qualifying instead of a pay stub.
The Sizing Formula
Maximum line = property value × combined loan-to-value ceiling − every lien already on the property.
On a second lien, the ceiling is typically 70% combined loan-to-value at a 720 score or better. Below 720 there is no second-lien tier. Three limits can bind, and whichever is lowest sets your number:
| Limit | What it does | Typical second-lien figure |
|---|---|---|
| Equity ceiling | Value × 70% minus first balance | Depends on your value and balance |
| Dollar cap | Maximum line size | $500,000 |
| Rent coverage | Rent must cover the stress payment | 1.10x minimum |
Run it with percentages, not dollars. Say a rental is valued at $600,000 and the first mortgage sits at about 40% of value. A 70% ceiling leaves roughly 30% of value in reach. That is the equity room, and the $500,000 cap does not bind at that value. At a higher value with a very low balance, the cap would bind first instead.
The minimum line is $50,000. If the leftover room after the first mortgage is under that, a second lien generally does not fit. This is the common surprise for an owner who bought recently with a high-leverage first loan.
Does the Credit Limit or the Draw Count Toward the Ratio?
The credit limit counts. Lenders test the combined ratio on the full line, not on the amount drawn. Picture an investor who wants $100,000 today but is approved for a $200,000 line. The ratio is tested as though all $200,000 is borrowed, so a smaller request leaves more room.
Draw rules matter too. At least 80% of the line is drawn at closing, and the closing draw is never under $50,000. On the smallest lines, that means the whole line is drawn at closing. Later draws are at least $5,000 each. This is not a line you open and leave mostly idle, so size it for the money you intend to use. A $100,000 draw at closing would not fit alongside a $200,000 line, since the closing draw on that line must be at least 80% of it.
How Does Rent Coverage Limit the Line?
Rent coverage can cap the line even when equity is plentiful. The program calculates coverage as gross monthly rent divided by a qualifying payment. That payment is a fully amortizing payment on the entire credit limit at a stressed rate, which is the start rate plus 2 percentage points. Taxes and insurance are not part of it.
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 in place is required. A two-to-four-unit property may have at most one vacant unit.
Here is the catch for second liens. Confirm on the file how the lender treats the first-mortgage payment in its coverage calculation, because that treatment can change whether a larger line clears 1.10x. A thin-rent property may clear on a $150,000 line and fall short on $400,000. Sizing down is often the fix, and that is a legitimate answer rather than a failure.
For a broader view of how debt-coverage lending works, see Lendmire’s complete DSCR loans guide.
Which Credit Score and Mortgage History Does the Second Lien Need?
A 720 score is the second-lien floor. A first lien starts at 700, but that route only exists on a rental with no mortgage. So an owner at 700 to 719 who wants to keep the original loan has no second-lien tier, and the realistic alternative is a cash-out refinance of the whole balance.
Mortgage history also counts. Typically there should be no 30-day late in the last 12 months, and 48 months should have passed since a bankruptcy, foreclosure, short sale, or deed-in-lieu. No reserves and no cash to close are required, subject to underwriting.
How Does the Rental Get Valued?
Lines up to $400,000 can use an automated valuation with a property inspection report, or a full interior appraisal. Lines above $400,000 need a full interior appraisal. Appraisal waivers are not accepted, so plan on a real valuation.
The value is half the formula. A low valuation shrinks the line directly, because it lowers the value you multiply by the ceiling. Title work follows the line size: a full title policy on a first lien and on second liens above $400,000, and an owner-and-encumbrance report on smaller second liens.
Where Can the Line Be Blocked?
Most blocks come from a short list of eligibility points:
- 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).
- Property type. Single-family, PUD, townhome, two-to-four units, and condominiums are eligible property types. Rural-designated property, row homes, condotels, leaseholds, land trusts, mixed-use, and a property listed for sale in the prior two months are outside this lane.
- Market adjustments. A declining-market flag lowers the ceiling 5 points, and Philadelphia lines carry a ceiling 10 points lower.
- Borrower type. U.S. citizens, permanent residents, and non-permanent residents with a Social Security number are eligible. Foreign nationals and ITIN borrowers are not.
- Exposure. A borrower is limited to 5 loans or $2,500,000 with the program, so count every line before drawing on rental one.
You cannot borrow against a property you are buying, either. The line is never closed with a purchase, since a new purchase has no lien, lease, or rent history.
Will a Second Lien Upset the Original Mortgage?
Usually not, but check the documents. Federal law generally protects a borrower who adds a junior lien that doesn’t transfer occupancy rights from a due-on-sale demand, according to a legal summary of the Garn-St Germain Act. The same summary says deeding a rental into an LLC is a different question and can trigger the clause. Read the first mortgage’s own terms before assuming either way, and treat this as general information rather than legal advice.
Title can stay in an LLC if it already is. Vesting in the owner’s LLC is allowed on investment property, subject to program terms. The members sign as guarantors, and a title holder who is not a borrower signs an acknowledgment and the security instrument. Moving a rental into a new LLC just to take the line is the step that deserves a lawyer first.
Here is a practical consent checklist:
- Read the first mortgage note and security instrument for junior-lien language.
- Get the current payoff balance in writing.
- List every other recorded lien, since old seconds shrink the room.
- Confirm title vesting matches who will sign.
What Can Happen to the Line After Closing?
The rate is variable, so the payment can change. The draw period is 5 years interest-only on the drawn balance, followed by a 25-year fully amortizing repayment period and a 30-year maturity. Expect the payment to step up when repayment begins, and budget rent against that step.
Lines can also be frozen or reduced if value falls. For consumer-purpose plans, federal Regulation Z commentary says a contract cannot allow a freeze for an insignificant decline. The Consumer Compliance Outlook notes the rule does not define a significant decline, and its safe harbor treats a 50% drop in the cushion between the credit limit and available equity as significant. Whether that framework governs a business-purpose investor line is unclear, so read it as an illustration of how freezes work, not a promise of protection.
DSCR HELOC or Cash-Out Refinance?
Both reach equity. They solve different problems.
| Factor | DSCR HELOC (second lien) | DSCR cash-out refinance |
|---|---|---|
| First mortgage | Stays untouched | Replaced |
| What gets repriced | Only the new line | The whole balance |
| Structure | Revolving, variable | Fixed-balance loan |
| Fit | First loan has terms worth keeping | You want one loan in place of two |
If the existing balance is low, a cash-out can release more total equity than a second lien held at 70% combined. If your first loan has terms worth keeping, the line preserves them. The decision turns on how much you need, how long you will hold the debt, and whether the first mortgage is worth protecting.
When Not to Take the Line
Skip it when the leftover room is under $50,000, when your score sits at 700 to 719 and you want to keep the first loan, or when the rental is under 6 months old. Skip it, too, if you cannot absorb a fluctuating payment on a variable-rate line, or if the borrowed money will not earn more than it costs.
Sometimes borrowing nothing is correct. A line sized to a specific acquisition, such as a down payment on the next rental, usually makes more sense than one opened for “just in case” flexibility, especially with the 80% closing draw.
Frequently Asked Questions
What is the maximum DSCR HELOC amount behind a first mortgage?
On a second lien, the line is capped at $500,000, and combined leverage is typically up to 70% at a 720 score or better. The equity ceiling usually binds first. Take value times 70%, subtract the first mortgage balance, and compare the result to the $500,000 cap and the $50,000 minimum, subject to underwriting.
Do I need to refinance my original mortgage to get the line?
No. The line is a standalone second lien behind the first mortgage you keep. The first loan keeps its own terms. Review its documents for junior-lien language, and the lender’s coverage calculation governs how the first payment is treated.
How long must I own the rental before applying?
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). Both measure from different dates, so check each one against your closing documents.
Can an LLC hold title on the rental?
Yes, subject to program eligibility. The LLC members sign as guarantors, and a title holder who is not a borrower signs an acknowledgment and the security instrument. Investment property only.
Where is this offered?
It is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee. Eligibility, terms, and availability are set by the lender and can change.
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 or request a quote. Lendmire’s related piece Can You Get an Investment Property HELOC While Still on the Original Home Loan? goes further on the lien mechanics.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage with consumer lending licenses in 16 states. It arranges DSCR home equity lines of credit on rental property through wholesale lending partners in 15 of its 16 licensed states (every licensed state except Tennessee); each line is written on a non-owner-occupied one-to-four-unit rental and reviewed individually by the lender under the program’s credit and leverage 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. Consumer Financial Protection Bureau – Home equity loan vs. HELOC
2. FedLaws – Garn-St Germain Act due-on-sale triggers and exceptions
3. Consumer Financial Protection Bureau – Regulation Z commentary on HELOC plans
4. Consumer Compliance Outlook – HELOC plans and changing property values
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much Can You Borrow on a DSCR HELOC for Refinancing a Balance Into a New HELOC? · How Much Can You Borrow on a DSCR HELOC on a Rental That Still Has a First Mortgage? · How Much Can You Borrow on a DSCR HELOC on a Vacant Rental Without a Lease?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
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.