The Quick Read: It depends on how much room the first mortgage leaves: through select programs, a DSCR HELOC on a rental that keeps its first mortgage is a standalone second lien, and the first mortgage plus the new line must fit under 70% combined loan-to-value, at a 720 credit score or better, on lines of $50,000 to $500,000, subject to underwriting. The rent then has to cover a stress payment on the whole line. Your personal income is never calculated. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
- The formula: line size = (property value × 70%) − first-mortgage balance, held to the program’s line limits.
- The coverage test: gross monthly rent divided by a stress payment on the entire line must reach 1.10x, subject to lender guidelines.
- The credit floor: 720 on a second lien. Below that, there is no second-lien option.
- The draw: at least 80% of the line is drawn at closing, so the line is not a stand-by reserve.
- The result: your low-rate first mortgage stays in place, but the line is smaller than a cash-out refinance would give you.
How Is the Maximum Line Calculated?
The maximum line is the room left under a 70% combined loan-to-value ceiling after your first mortgage, then limited to $500,000 and held above the $50,000 minimum. Combined loan-to-value (CLTV) adds every lien on the property and divides by the property’s value. Equity alone does not set the line. The ceiling does.
Yahoo Finance’s CLTV explainer makes the same point: a lender applying CLTV to a second loan counts the first-mortgage balance plus the new amount you request. On this program, the line counts at its full limit, not only the portion you draw. A $200,000 limit with $100,000 drawn is measured as a $200,000 line.
Here is what the formula looks like when you express your first mortgage as a share of the property’s value. These are illustrative, and the lender’s own calculation and valuation govern.
| First mortgage, % of value | Room under 70% CLTV |
|---|---|
| 40% | 30% of value |
| 50% | 20% of value |
| 60% | 10% of value |
| 65% | 5% of value |
| 70% or more | None |
Read the table in two steps. A rental with a first mortgage at half its value leaves 20 points of value for the line. On a more expensive property, that room can reach the $500,000 limit. On a cheaper property, it may sit below the $50,000 minimum, and then there is no line to write.
A rental already at or near 70% combined has no second-lien room at all, no matter how strong the rent is. Value means the lender’s valuation, not your purchase price and not a number you estimated.
One more point on the line: the program also lowers the ceiling by 5 points when the property sits in a market flagged as declining. That flag comes from the lender’s review, not from you.
Does the Rent Still Cover It?
Rent is the second gate. The program requires a 1.10x DSCR, which means gross monthly rent divided by a qualifying payment must reach 1.10, subject to lender guidelines. The qualifying payment is a stress payment: a fully amortizing principal-and-interest payment on the entire credit limit, calculated at the start rate plus 2 percentage points.
Taxes and insurance are not part of that payment. The line is tested at its full limit, not at the amount you plan to draw. A smaller limit can pass coverage when a larger one fails.
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. On a two-to-four-unit property, at most one unit may be vacant.
Here is the part that depends on the file. Whether your first-mortgage payment joins the qualifying payment on a second lien is not published, so confirm on the file how the lender treats it. Run both versions before you pay for a valuation. Programs in the wholesale network that Lendmire works with differ on this point, and the lender’s coverage calculation governs.
Which Gate Binds First?
Leverage binds first when you bought with a thin down payment, and coverage binds first when you own a high-equity rental with modest rent. Checking both before you apply shows you which limit controls your line.
Consider a rental with a first mortgage well below half its value, so the leverage room could support the maximum $500,000 line. The rent, though, covers the stress payment on that full line at only about 1.0x. That file fails the 1.10x test. Asking for a smaller limit lowers the stress payment, which lifts the ratio toward 1.10x. The line you can actually get is the smaller of what leverage allows and what rent supports.
Now flip it. A rental with strong rent but a first mortgage at 68% of value passes coverage easily and fails leverage, because the room is too thin. Rent cannot buy more room.
If neither gate works, other structures may fit better. A DSCR cash-out refinance replaces the first mortgage, and a closed-end second lien from a different program is another path. Both trade away something, which the comparison table below covers.
Key Terms Defined
CLTV (combined loan-to-value): all liens on the property added together, divided by its value.
Second lien: a loan secured by the same property that sits behind the first mortgage in repayment priority.
DSCR (debt service coverage ratio): gross monthly rent divided by the qualifying payment.
Stress payment: a payment calculated on the full credit limit at a higher start rate, used only to test coverage.
Draw period: the window when you can borrow from the line. On this program it lasts 5 years, interest-only on the drawn balance, followed by a 25-year repayment period and a 30-year maturity.
What Does the Line Look Like After Closing?
The rate is variable, and the program requires at least 80% of the line to be drawn at closing. The closing draw is never less than $50,000, so on the smallest lines the whole line is drawn at closing. Later draws must be at least $5,000 each.
That changes how you think about the product. On a bank line, you can leave most of the limit untouched. Here, most of the limit is borrowed on day one, and interest starts on that balance. Size the line to what you need, not to the maximum the room allows.
During the 5-year draw period you pay interest only on the drawn balance. When the 25-year repayment period starts, the payment steps up because principal begins to amortize. Plan for that before you plan the use of the funds. The rate and the pricing terms come with the lender’s disclosures.
What the Lender Needs on File
Before you apply, gather the items that decide whether a mortgaged rental works. This list is the pre-flight check.
- First-mortgage payoff or balance statement. The balance sets your leverage room.
- The first mortgage’s own terms. If your first loan is itself a DSCR loan, read its lien language on junior liens. Confirm that a second lien is allowed.
- No other junior liens. The line is never written as a third lien, so an existing second mortgage ends the conversation.
- 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 need a full interior appraisal on Form 1004, 1073 or 1025. Appraisal waivers are not accepted. Qualifying market rent comes from the appraiser’s Form 1007.
- Title. Second liens above $400,000 take a full title policy. Smaller second liens take an owner-and-encumbrance report.
- Vesting. An LLC can hold title on investment property, with its members signing as guarantors, subject to program terms. A title holder who is not a borrower signs a non-borrowing owner acknowledgment and the security instrument. The borrowers on the line need not match the borrowers on the first mortgage.
- Insurance. Hazard coverage must cover both liens, with flood coverage where required.
On credit, the lender’s own report sets the tier. Mortgage history must show no 30-day late payment in the last 12 months. The program also wants 48 months since a bankruptcy, foreclosure, short sale or deed in lieu. No reserves and no cash to close are required, subject to underwriting. Each borrower is limited to 5 loans or $2,500,000 with the program.
The file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. There is no traditional personal-income documentation: no W-2s, pay stubs or debt-to-income ratios. Credit, valuation, title and property eligibility all still apply. 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.
For the full requirement set, see Lendmire’s guide to investment property HELOC requirements on a rental that still has a first mortgage.
When the Property Is Free and Clear
A rental with no mortgage can take a first-lien line instead, and the leverage is higher. This is the one place the formula changes. First-lien limits are expressed as LTV, not CLTV, because there is nothing else to combine.
On lines up to $500,000, a first lien reaches 75% LTV at a 740 score or better and 70% LTV from 700 to 739. Lines above $500,000, up to $1,000,000, are held to 65% LTV at 720 or better. The first-lien floor is 700. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
A rental with a first mortgage cannot use this lane at all. It is always a second lien, with the 720 floor. A borrower at 700 to 719 with a first mortgage is therefore blocked from the second-lien tier, because that tier starts at 720. All of these figures come through select programs and are ceilings, never offers.
How It Compares
The right choice depends on what you want to keep. If the first mortgage is cheap and equity is modest, the line fits. If the first mortgage is weak and equity is large, a refinance often fits better.
| Factor | DSCR HELOC (second lien) | DSCR cash-out refinance | Bank HELOC on a rental |
|---|---|---|---|
| First mortgage | Stays in place | Replaced | Stays in place |
| Qualified on | Property rent | Property rent | Usually personal income |
| Funds | Revolving, 80% drawn at close | One lump sum | Varies by bank |
| Size limit | Room under 70% CLTV | Larger equity access | Set by the bank |
| Rate type | Variable | Program-dependent | Typically variable |
Bank HELOC rules belong to those banks. Market surveys report that home equity products on owner-occupied homes often allow combined leverage of 80% or 85%, per the same Yahoo Finance explainer. That is a primary-residence figure. The network figure for a second lien on an investment rental is 70% CLTV, subject to underwriting.
A second lien also has to be paid off before you refinance the same property with a cash-out loan. If a refinance is likely in your plan, count the line as a short-term tool. For the larger picture, see Lendmire’s complete DSCR loans guide.
What Falls Outside the Program
The line is written only on non-owner-occupied one-to-four-unit rentals. Owner-occupied homes and second homes are never eligible. The property types it cannot take are:
- rural-designated property
- row homes
- condotels
- commercial or agricultural property
- leaseholds and land trusts
- age-restricted communities and hobby farms
- modular and log homes
- land contracts and mixed-use property
- a property with a solar lien
- a property listed for sale in the prior 2 months
Single-family homes, PUDs, townhomes, two-to-four-unit properties, warrantable and non-warrantable condominiums, and lots up to 10 acres are eligible property types. The leverage tiers above apply to all of them.
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).
Borrowers must be US citizens, permanent residents, or non-permanent residents with a Social Security number. Foreign nationals and ITIN borrowers are not eligible. If you own several rentals, each line is secured by one property, so a portfolio gets several lines, not one pooled line.
The program is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
Can the Line Fund the Next Purchase?
Yes, indirectly. The property you are buying cannot secure the line, and the line is never closed together with a purchase. The line closes on a rental you already own, you draw funds, and a separate DSCR loan then buys the next property.
Be honest about the trade-off. Using borrowed equity for a down payment leaves you with thin equity across two properties. In a downturn, both can feel it. If a lender’s valuation comes in lower than expected, the room shrinks before the line closes.
What Are the Risks?
The line is a variable-rate loan secured by your rental, and several things can move against you after closing. The main ones are the payment structure, the collateral value and the draw terms.
The CFPB defines HELOC equity as a home’s value minus what you owe. It also notes that a lender may stop further draws if the property’s value declines significantly. Treat the 80% closing draw as the main use of the line, since later access is not guaranteed.
Mycreditunion.gov describes a HELOC taken on a mortgaged property as a second mortgage. You then owe two payments on one building. If the rent drops or a unit sits vacant, both payments still come due.
Common Misreads
You can borrow up to value minus the mortgage. No. The ceiling is a percentage of value, so total debt must fit under 70% CLTV, not 100%.
Rent sets the line size. Rent sets coverage. Equity room sets the maximum. A high-rent rental with a high first-mortgage balance may have no room.
CLTV counts only what you draw. On this program it counts the full line limit.
DSCR means no underwriting. It does not. Credit tiers, valuation, title and property eligibility all apply, and the lender’s calculation governs.
A HELOC is only for your own home. A primary-residence HELOC is a different, owner-occupied product. DSCR HELOC is a market label for a line on investment property, not a standardized product, so terms differ by program.
Frequently Asked Questions
Does my first mortgage stay in place?
Yes. A second-lien line sits behind your first mortgage, which keeps its balance and terms. The cost is a smaller line, because the first mortgage and the new line together must fit under the CLTV ceiling.
What credit score do I need with a first mortgage?
You need a 720 or better on a second lien, subject to underwriting. A first lien starts at 700, but only on a rental with no mortgage.
How long must I own the rental first?
Both six-month clocks must be satisfied, and each file is underwritten individually.
Can an LLC own the rental?
Yes, subject to program terms. The LLC can stay on title on investment property, and its members sign as guarantors.
Do I have to draw the whole line?
Almost all of it. Choose a limit close to what you need.
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. Lendmire is a mortgage broker that arranges financing through select lenders in its wholesale network. This is not a commitment to lend. Reach the team at 828-256-2183 or request a quote.
For current guidelines and terms, see Lendmire’s DSCR HELOC programs page.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage serving landlords and real estate investors in 16 licensed states. DSCR home equity lines of credit on non-owner-occupied one-to-four-unit rentals are arranged through wholesale lending channels in 15 of those states (every licensed state except Tennessee); Lendmire brokers the line and the lender underwrites each application on the property’s rent, credit and leverage. 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. Yahoo Finance – CLTV explainer
2. The CFPB
3. mycreditunion.gov – Home equity loans and lines of credit
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Can You Get a DSCR HELOC When the Home Has a PACE Assessment? · DSCR HELOC Requirements for Owners With No First Mortgage to Preserve · DSCR HELOC Requirements While Keeping Your Current First Mortgage
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
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.