The Quick Read: The program that fits a two-to-four unit building where every other unit has a tenant is the one whose lien position, combined leverage and rent coverage match that building. A DSCR HELOC qualifies primarily on the property’s rental income covering a stress payment, subject to lender guidelines. Tenants in the other units make the cleanest file, but they do not decide approval. The counted rent still has to clear the coverage test on the whole credit line.
- The line is a standalone second lien behind your existing mortgage, or a standalone first lien on a paid-off rental.
- Qualifying coverage is at least 1.10x on a stress payment across the entire line, subject to underwriting.
- Rent counts at the lesser of the lease or the appraiser’s market rent, unit by unit, unless three months of rent receipts support a lease above market.
- A two-to-four unit building may have at most one vacant unit.
- The right program depends on your building, your credit tier and how much leverage you need.
What Is a DSCR HELOC, and Where Do Leased Units Fit?
A DSCR HELOC is a line of credit secured by a rental you own. It is qualified on the rent, not on your paycheck. Lendmire is a mortgage broker, so it does not lend. It places these lines with wholesale lenders in its network, and each lender underwrites its own files.
The structure is simple. The line sits behind the first mortgage you keep, as a second lien. Or it stands alone as a first lien on a rental with no mortgage. Your personal income is never calculated: no traditional personal-income documentation, W-2s or debt-to-income ratio, subject to lender guidelines. The LLC can stay on title, subject to program terms, and the members sign as guarantors.
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. That also means this line never goes on your own home.
The phrase “all other units leased” describes a two-to-four unit building with a tenant in every unit except at most one. The open unit might be between tenants or being turned. Every other unit has a lease on file. For a fuller picture of how these loans work, see the complete DSCR loans guide.
Key Terms Defined
DSCR (debt service coverage ratio): the gross monthly rent divided by the qualifying payment. A result of 1.10x means the rent covers that payment with 10% to spare.
DSCR HELOC: a revolving line on a rental, qualified on that rental’s rent instead of the owner’s income.
CLTV (combined loan-to-value): your first mortgage balance plus the new line, divided by the property’s value.
Lien position: your place in line if the loan goes bad. A second lien is paid after the first mortgage.
Draw period: on this program, 5 years of interest-only payments on the drawn balance, followed by a 25-year repayment period.
Form 1007: the appraiser’s rent schedule that states what the unit would rent for on the open market.
What Does a Fully Leased Building Prove?
A fully leased building proves the income is real. Every unit has a tenant, a lease and a rent figure. The lender is not leaning on an appraiser’s opinion for most of the income stack. In practice, this is the easiest multi-unit file to read.
It does not prove the loan works. Approval turns on four other things:
- the rent that actually counts after trimming
- the stress payment on the full line
- the combined leverage and valuation
- your credit tier and entity documents
A fully leased building on cheap leases can fail while a building with one open unit passes. Many investors miss that point (and some lenders do not volunteer it). Leases count only up to market, and below-market leases pull the ratio down.
How Does the Lender Count Rent, Unit by Unit?
The lender reads a multi-unit building one unit at a time. Each unit gets a counted rent, and the counted rents add up to the numerator.
| Unit situation | Rent counted |
|---|---|
| Lease at or below market | The lease amount |
| Lease above market | Market rent, unless three months of receipts support the lease |
| One vacant unit | Market rent per the lender’s calculation |
| Pet, parking, late fees | Usually not counted |
The appraiser’s Form 1007 sets market rent. The program counts the lesser of that figure or the lease, unless three months of rent receipts support a lease above market. A lease above market counts only with three months of receipts. A lease in place is required.
Underwriting then runs in order.
1. Property check. The rental must be non-owner-occupied, one to four units, and an eligible type.
2. Rent count. The lender totals the lesser-of rents across all units.
3. Stress payment. The test payment is fully amortizing and runs on the entire credit limit at the start rate plus 2 percentage points. Whether the first-mortgage payment joins that figure on a second lien is up to the lender’s coverage calculation.
4. Coverage test. Counted rent divided by the stress payment must reach 1.10x or better.
5. Leverage check. Combined leverage and credit tier set the maximum line.
The key point is the line is tested on its full size, not on the first draw alone. A big line against modest rent can fail even when the drawn balance would look fine. For a step-by-step view of the same test, read Lendmire’s piece How to Qualify for a DSCR HELOC With All Other Units Leased.
What Does One Vacancy or One Cheap Lease Do to the Number?
Run the numbers on a fourplex with four equal units, using round assumptions only. Say the file clears at 1.15x with every lease at market. Now one tenant pays 20% under market. That unit is a quarter of the building, so counted rent falls about 5%. Coverage drops to roughly 1.09x, just under the 1.10x floor. Nothing about occupancy changed, yet the file fails.
Flip it. The same building has one unit open, rent-ready, at market rent. If the lender credits that unit at market, coverage barely moves. The lender’s own calculation governs, and this example is illustrative only.
The takeaway is practical. Before you apply, compare each in-place lease with market rent. A lease that is well under market is the most common surprise on an otherwise clean file.
How Does Unit Count Change the Math?
Unit count changes how much one empty unit hurts, assuming equal units.
| Building | Share of rent in one unit | One vacancy allowed? |
|---|---|---|
| Duplex | About 50% | Yes, at most 1 |
| Triplex | About 33% | Yes, at most 1 |
| Fourplex | About 25% | Yes, at most 1 |
A duplex with one open unit leaves half the income resting on one lease. A fourplex spreads that risk. This is a post-closing cash-flow point as much as an underwriting one. Even if the open unit counts at market rent at closing, an empty unit pays nothing in real life.
Buildings of five or more units are commercial-style and fall outside this program. They are read on net operating income, so the vacancy and expense treatment differs.
When the Other Unit Is Not a Normal Vacancy
Some situations sit outside the clean pattern. How they play out depends on the lender’s guidelines.
| Situation | What usually happens |
|---|---|
| Two or more vacant units | Over the one-vacancy limit on this program |
| Unit leased to a relative | Closer review, with market rent applied |
| Owner lives in one unit | Not eligible; this line is non-owner-occupied only |
| Unit under renovation | Treated as the one vacant unit, if it qualifies |
| Month-to-month tenant | Lender decides how the lease requirement applies |
The owner-occupancy line matters for house-hackers. If you live in one unit, this product does not apply. A consumer home equity line on your own residence is a different, owner-occupied product.
Second Lien or First Lien: What Leverage Is Available?
Leverage depends on lien position, and the two cases have different ceilings. All figures below are ceilings through select programs, subject to underwriting.
Second lien (you keep your first mortgage). Combined loan-to-value runs up to 70% CLTV at a 720 credit score or better, on lines from $50,000 up to $500,000. Below 720 there is no second-lien option. Remember that CLTV counts your existing balance plus the new line. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
First lien (a rental with no mortgage). The first-lien table below applies only to a rental with no mortgage, so the limits are expressed as LTV.
| First-lien line size | Credit score | Maximum LTV |
|---|---|---|
| Up to $500,000 | 740 or better | 75% |
| Up to $500,000 | 700 to 739 | 70% |
| Above $500,000, to $1,000,000 | 720 or better | 65% |
A first lien needs a 700 score. A borrower who keeps a first mortgage can only take a second lien, which carries the 720 floor. A declining-market flag can lower the ceiling by 5 points, and Philadelphia lines carry a ceiling 10 points lower. Mortgage history matters too: no 30-day late in the last 12 months, and 48 months since a bankruptcy, foreclosure, short sale or deed-in-lieu. Final terms depend on lender guidelines, property type and the borrower’s complete credit picture.
What Else Is in the File?
Draws. At least 80% of the line, and never less than $50,000, is drawn at closing. Later draws are at least $5,000 each. This is not a pure revolver you leave untouched. The rate is variable, and the rate and pricing terms come with the lender’s disclosures.
Payments. You pay interest only on the drawn balance for 5 years. Then a 25-year fully amortizing repayment period follows, on a 30-year maturity. Plan for that step-up. A CFPB explainer on home equity lines notes that payments often rise when repayment begins. It also warns that some lines require the full balance at the end of the draw period, a balloon structure that Experian also flags. This program amortizes through repayment, but read the lender’s HELOC disclosures for how a freeze or reduction of the line could work.
Valuation. Lines up to $400,000 use an automated valuation with a confidence score of 85 or better plus a property inspection report, or a full interior appraisal. Larger lines take 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).
Borrowers and exposure. U.S. citizens, permanent residents and non-permanent residents with a Social Security number are eligible. Foreign nationals and ITIN borrowers are not. No reserves or cash to close are required, and the limit is 5 loans or $2,500,000 per borrower with the program.
Property. Single-family, PUD, townhome, two-to-four unit and condominium properties are eligible, along with lots to 10 acres. Rural-designated property, condotels, row homes, leaseholds, land trusts, mixed-use properties and any property with a solar lien are outside the lane. So is a property listed for sale in the prior 2 months.
The line is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
Line, Refinance or Income-Based HELOC?
The real choice is often whether your current first mortgage is worth keeping.
| Factor | DSCR HELOC | DSCR cash-out refinance | Income-based HELOC |
|---|---|---|---|
| First mortgage | Stays in place | Replaced | Stays in place |
| Reviewed on | Rent | Rent | Personal income |
| Payment shape | Interest-only, then amortizing | Standard term loan | Varies by program |
| Best when | First mortgage is worth keeping | You want one new loan | Income file is strong |
The income-based column describes that program’s own rules, not this one’s.
How to Pick the Best Program for Your Situation
No single program is best for every building. The lenders that write this product differ on property types, overlays and leverage, so the right match depends on your facts. Lendmire shops its network of wholesale DSCR HELOC lenders and matches the scenario to the program. Across that network, the files that go smoothly share a few traits. The line is sized to the rent, not to the equity alone. The leases sit at or near market. And the property avoids the exclusions list.
Use this checklist before you apply:
1. Does the building have one to four units, and is it non-owner-occupied? 2. Is at most one unit vacant? 3. Does each lease sit near market rent? 4. Is your existing first mortgage worth keeping? 5. Does your credit score reach 720 for a second lien, or 700 for a first lien? 6. Have you cleared both six-month seasoning clocks? 7. Is your total CLTV or LTV inside the tier ceiling?
In DSCR files like this, sizing the line to coverage is the step borrowers skip. They ask for the biggest line their equity allows, then discover the stress payment on the full limit sinks the ratio. The stronger play is often a smaller line that clears with cushion. The other trade-off is genuine: a larger line gives more room later but raises both the test hurdle and the repayment-period payment.
What Documents Does a Fully Leased Building Need?
Qualifying on rent does not mean skipping paperwork. The rent, the lease, the credit report and the valuation are all documented. Expect to provide:
- a signed lease for every leased unit, plus a rent roll
- three months of receipts if a lease sits above market rent
- your most recent first-mortgage statement
- entity documents if an LLC holds title, and signatures from the guarantors
- hazard insurance covering both liens, plus flood coverage where required
Why Do These Files Stall?
Most stalls trace to one of a few causes. The line is too large for the rent, so the stress test fails. A lease sits under market and drags down counted rent. Combined leverage lands above the tier ceiling. The property falls on the excluded list, such as a recent listing or a solar lien. Or the seasoning clocks have not run. Each is easier to fix before applying than after.
What Does the Ratio Not Tell You?
Passing the coverage test does not mean comfortable cash flow. The ratio uses rent and the qualifying payment. It does not capture repairs, turnover or an empty unit next month. Treat 1.10x as a lender hurdle, not as your own underwriting. Then build your own cushion on top.
Frequently Asked Questions
Can I get a DSCR HELOC if I live in one of the units?
No. This line is for non-owner-occupied investment property only. If you occupy a unit, you would be looking at a different, owner-occupied product. Ask a broker which route fits your building.
Can one unit be vacant?
Yes, in a two-to-four unit building, at most one unit may be vacant. Two or more vacancies exceed the program limit. The vacant unit’s rent is typically credited at the appraiser’s market rent, subject to the lender’s calculation.
Does a below-market lease change the rent that counts?
Yes. The program counts the lesser of the lease or the appraiser’s market rent, unless three months of rent receipts support a lease above market. A lease under market holds the ratio down at the lease amount. A lease above market is trimmed to market unless three months of receipts support it.
Is the full line tested, or only the drawn balance?
The full credit limit. The qualifying payment is a fully amortizing payment on the entire limit at the start rate plus 2 percentage points. That is why line size matters as much as equity.
Should I choose a line or a cash-out refinance?
It depends on your first mortgage. A line leaves the first mortgage in place, while a cash-out refinance replaces it. If your current first mortgage is worth keeping, a standalone second lien is usually the cleaner fit.
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 or request a quote. Programs change, every file is underwritten individually, and nothing here is a commitment to lend.
A fully leased building is the strongest starting position, and the rent on each lease is what turns it into a line.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage serving homeowners and real estate investors in its 16 full-service states. Home equity lines of credit are arranged through wholesale lending channels; Lendmire brokers the line and the lender underwrites each application under its occupancy-based guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
Get Started
Ready to find the right loan for you?
See your offer in seconds. No credit pull, no obligation.
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 explainer on home equity lines
2. Experian – What Is a Draw Period on a HELOC
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Top DSCR HELOC Providers With Leased Solar Panels · How to Use a DSCR HELOC to Fund a Small Business · Top DSCR HELOC Providers With Rental Income and No W-2
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
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.