The Quick Read: On a one-to-four-unit rental, a rent-qualified home equity line can often reach your equity without a commercial refinance. It sits as a standalone second lien behind the first mortgage you keep, or as a first lien on a rental with no mortgage. It qualifies primarily on the rental’s income covering the payment, subject to lender guidelines.
- The line is open-end and revolving. A commercial mortgage is a closed-end term loan that often ends in a balloon.
- Through select programs, a second lien reaches up to 70% combined loan-to-value (CLTV) at a 720 credit score or better, on lines up to $500,000.
- The rental needs a minimum 1.10x coverage ratio, tested on a stress payment over the entire credit limit.
- Five or more units, mixed-use property and several other property types fall outside the program, so a commercial loan is the better fit there.
What Is a DSCR HELOC, and What Is the Commercial Mortgage It Replaces?
A DSCR HELOC is a revolving line of credit secured by a rental you already own. The rent qualifies it, not your personal income. Subject to underwriting, the LLC that owns the rental can stay on title, and the LLC’s members sign as guarantors.
A commercial mortgage is a different tool. It is a term loan, often with a balloon payment due at the end. Lenders treat one-to-four units as residential and five or more as commercial. Even so, owners of small LLC-titled rentals are sometimes steered toward a commercial or portfolio loan because a standard bank line will not lend to the entity.
The practical choice is between a one-time commercial refinance and a line secured behind the first mortgage you already have. If your first mortgage is worth keeping, the line leaves it untouched. A cash-out refinance or commercial refinance replaces it.
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.
Key Terms Defined
DSCR (debt service coverage ratio): the rental’s gross monthly rent divided by the qualifying payment. Above 1.00x means the rent covers the payment.
CLTV (combined loan-to-value): your first mortgage balance plus the new line, divided by the property’s value. It applies to second liens.
LTV (loan-to-value): the loan divided by the property’s value. It applies to a first lien when no other mortgage exists.
Second lien: a loan that sits behind the first mortgage. If the property is sold or foreclosed, the first lien is paid first.
Stress payment: the payment lenders use for the coverage test. It is a fully amortizing payment on the entire limit at the start rate plus 2 percentage points. It is not what you will actually pay.
Draw period: the stretch when you can borrow from the line. Here it is 5 years, interest-only on what you have drawn.
Balloon: a large lump sum due at the end of a loan’s term. It is usually paid by refinancing.
Recourse: the lender can pursue you personally, not just the property, if the loan goes unpaid.
How Underwriting Treats the Line, Step by Step
Across Lendmire’s wholesale network, this line is built around the property. Here is how the deal works.
Step 1: The collateral. The line is secured by a one-to-four-unit rental you already own. It is never closed together with a purchase and never sits as a third lien. It is never placed on your own home or a second home. If the rental has a mortgage, the line is a second lien. If it has none, the line is a first lien.
Step 2: The borrower and the vesting. U.S. citizens, permanent residents and non-permanent residents with a Social Security number are eligible. Foreign nationals and ITIN borrowers are not. An LLC can hold title on an investment property. The members sign as guarantors. 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 be the borrowers on the first mortgage.
Step 3: The rent. A lease must be in place. Rent is the lesser of the appraiser’s Form 1007 market rent and the lease, unless three months of receipts support a lease above market. A two-to-four-unit property may have at most 1 vacant unit.
Step 4: The coverage test. Gross monthly rent divided by the qualifying payment must reach at least 1.10x. The qualifying payment is principal and interest on the full line at the stress rate. Taxes and insurance are not part of it. The test also covers the whole limit, not only the drawn amount. Confirm on the file how the lender treats the first-mortgage payment, because the lender’s own coverage calculation governs.
Step 5: Credit. The minimum score is 720 on a second lien and 700 on a first lien. The tier comes from the lender’s own report. The lender wants no 30-day mortgage late in the last 12 months. It also wants 48 months since any bankruptcy, foreclosure, short sale or deed-in-lieu. Reserves and cash to close are not required.
Step 6: 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 take a full interior appraisal on Form 1004, 1073 or 1025. Appraisal waivers are not accepted.
Step 7: Title and insurance. First liens, and second liens above $400,000, take a full title policy. Smaller second liens use an owner-and-encumbrance report. Hazard insurance covers both liens, with flood coverage where required.
Qualifying arithmetic is illustrative, and every figure here is subject to underwriting.
How Much Equity Can You Reach?
The leverage depends on the lien position, and each tier has its own ceiling.
On a second lien, the CLTV runs up to 70% at 720 or better, on lines up to $500,000. There is no second-lien tier below 720. A borrower who keeps a first mortgage can only take a second lien.
On a first lien on a rental with no mortgage, the LTV runs up to 75% at 740 or better and 70% from 700 to 739, on lines up to $500,000. Lines above $500,000, up to $1,000,000, carry a 65% LTV ceiling at 720 or better. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
Lines start at $50,000. A declining-market flag lowers the ceiling by 5 points, and a few locations carry lower ceilings still. These are ceilings for select programs, not offers. Each file is underwritten individually.
Here is the second-lien math in percentages. Say your first mortgage balance sits at 45% of the property’s value. A 70% CLTV ceiling leaves up to 25% of value for the new line, before the minimum line size and the coverage test have their say.
How the Line Behaves After Closing
At least 80% of the line is drawn at closing, and the closing draw is never less than $50,000. On the smallest lines, that means the whole line is drawn at closing. Later draws must be at least $5,000 each. The line is therefore mostly funded from the start, and interest begins on that balance right away.
The draw period runs 5 years, interest-only on the drawn balance. Then a 25-year fully amortizing repayment period begins, with a 30-year maturity. The rate is variable. The CFPB’s explainer on home equity lines notes that a line has a draw period followed by a repayment period, and that payments can change from month to month because the rates are usually variable. Its HELOC brochure adds that payments can change even when you borrow nothing new.
Two things follow for a small landlord. First, the payment steps up when interest-only ends and principal repayment begins. Second, the rate and pricing terms come with the lender’s disclosures, so read them before you sign.
A commercial mortgage carries a different risk. Instead of a payment reset, you face a balloon and the need to refinance on someone else’s timeline.
DSCR HELOC vs. Commercial Mortgage and Other Options
| Factor | DSCR HELOC | Commercial mortgage | DSCR cash-out refi | Bank HELOC |
|---|---|---|---|---|
| Reviewed on | Rental income | Property NOI, often borrower too | Rental income | Personal income, DTI |
| Structure | Revolving line | Closed-end term loan | Closed-end loan | Revolving line |
| First mortgage | Stays in place | Replaced or sits beside it | Replaced | Stays in place |
| Entity title | LLC allowed | Often allowed | LLC allowed | Often personal title |
| Personal liability | Guarantors sign | Often recourse | Program-dependent | Personal borrower |
The commercial and bank columns describe those products in general. Their rules vary by lender. The DSCR HELOC column reflects the select programs Lendmire places, subject to underwriting.
One more difference matters. Commercial lenders usually measure net operating income against debt service. The DSCR HELOC uses gross monthly rent against the stress payment. The second is easier to document on a small rental, though it ignores the building’s operating costs.
A Worked Example in Ratios
Picture a duplex held in an LLC. The owner likes the existing first mortgage and wants equity for the next purchase. The lease and the appraiser’s Form 1007 market rent are close. Rent is the lesser of the two, unless three months of receipts support a lease above market.
The ratio depends on line size, so consider how it moves. On a modest line, the stress payment is low enough that the rent clears the 1.10x minimum. Now the owner asks for a bigger line. The stress payment grows because it applies to the full limit, and the ratio shrinks. Same rent, same property, and the larger request can fail the coverage test.
The takeaway is that line size and coverage are linked. The lender’s own calculation governs.
Where the Rule Breaks: When the Commercial Mortgage Wins
The line is the better tool in many small-rental cases. In others, it is not available at all. Look at a commercial mortgage when any of these applies:
- The building has five or more units.
- The property is mixed-use, commercial or agricultural, or has rural-designated land.
- The rental is a condotel, row home, leasehold or land trust holding. Hobby farms, modular and log homes, and age-restricted communities are also out.
- The property was listed for sale in the prior 2 months, or carries a solar lien.
- You need more than the program’s $1,000,000 line ceiling.
- You already hold 5 loans or $2,500,000 with the program.
- The borrower is a foreign national or ITIN borrower.
- You are buying and need money at closing. The line cannot be closed with a purchase.
A commercial loan can also suit an owner who wants a single fixed commitment and is comfortable with a balloon. The line is revolving and carries a variable rate, so it does not offer that.
How Long Must You Own the Rental First?
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).
If you are planning ahead, the line has to exist before you go under contract on the next property. The new purchase loan is then judged mostly on the new property’s rent. For more on using a rental line rather than the equity in your own home, see Lendmire’s guide How to Use an Investment Property HELOC on a Rental Instead of Your Primary Home.
The Risks Nobody Should Skip
- Variable payments. The rate moves, and the step from interest-only to amortizing raises the payment.
- A lien on one property. Swapping unsecured business debt for this line moves your downside from a lawsuit to possible foreclosure on the rental.
- A mostly funded line. With most of it drawn at closing, interest starts on day one. Do not treat it as a standby reserve.
- Guarantor exposure. Even with the LLC on title, the members sign as guarantors.
- Fewer lender choices. Many large retail lenders decline rental lines, which is why a wholesale placement matters. Availability varies by lender.
- Use of funds. 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.
Common Misconceptions
“It works like my bank HELOC.” A retail bank line is built on an owner-occupied home and personal income. This one is built on the rental’s rent.
“Commercial is required for any investor property.” A one-to-four-unit rental is generally financed as residential. Commercial classification generally starts at five units.
“It is the same as a DSCR cash-out refinance.” The line leaves your first mortgage in place. A cash-out refinance replaces it.
“No underwriting.” The lease, the credit report, the valuation and title all matter. The file is property-centric, but it is documented.
Decision Checklist
| If this describes you | Then lean toward |
|---|---|
| You like your first mortgage and have 70% CLTV room | DSCR HELOC (second lien) |
| The rental has no mortgage | DSCR HELOC (first lien) or a refinance |
| Your first mortgage is not worth keeping | DSCR cash-out refinance |
| The building has five or more units | Commercial mortgage |
| You own the rental less than 6 months | Wait, or a different loan |
| You want one fixed commitment | Closed-end loan |
Lendmire’s complete DSCR loans guide covers the wider DSCR toolkit.
From Application to First Draw
1. Confirm the property type, lien position and the first-mortgage balance. 2. Gather the lease, entity documents, insurance and credit authorization. 3. The lender orders the valuation and the Form 1007 rent schedule. 4. The lender checks coverage, credit, title and seasoning. 5. You review the lender’s HELOC disclosures and sign. 6. At closing, at least 80% of the line is drawn. Later draws start at $5,000.
Lendmire arranges this DSCR HELOC in 15 of its 16 licensed states, every licensed state except Tennessee. Lendmire is a broker and does not lend or approve.
Frequently Asked Questions
Can an LLC hold the rental when I open the line?
Yes, on an investment property, subject to program guidelines and underwriting. The members sign as guarantors.
Do I need tax returns or pay stubs?
No. The line is reviewed on the rental’s income: no traditional personal-income documentation, W-2s or personal income calculation, subject to lender guidelines. You still provide a lease, a credit report, a valuation and title documents.
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).
Can I use the line as the down payment on my next purchase?
The line cannot be closed together with a purchase. It must already exist before you go under contract. The new loan is then judged mostly on the new property’s rent. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.
Which rentals are excluded?
Rural-designated property, row homes, condotels, mixed-use, commercial or agricultural property, leaseholds, land trusts, age-restricted communities, hobby farms, modular and log homes, and properties under land contracts are outside the program. So are properties listed for sale in the prior 2 months and those with a solar lien.
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. Programs change, and every file is underwritten individually.
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. CFPB’s explainer on home equity lines
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Banks That Offer a DSCR HELOC When You Are Not on the Existing Mortgage · Banks That Offer a DSCR HELOC on a Vacant Rental Without a Lease · Top DSCR HELOC Providers While Still on the Original Mortgage on a Rental
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- 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.