The Quick Read: A 2–4 unit rental can qualify for a DSCR HELOC with one vacant unit, as long as the other units are leased, the rent still clears a 1.10x coverage test on the whole credit line, and you don’t live in the building; two or more vacant units takes the file out of the program, subject to underwriting. A DSCR HELOC is a revolving line of credit on a rental, qualified on the property’s rent instead of your personal income. The real risk with one empty unit is the math, not the eligibility rule.
- At most one unit in a 2–4 unit building can be vacant, and a lease must be in place on the occupied units.
- The coverage test uses a stress payment on the entire credit limit, not just the balance you draw.
- Rent counts at the lesser of market rent and the lease, unit by unit, unless three months of rent receipts support a lease above market.
- A duplex takes the biggest hit from one vacancy. A fourplex takes the smallest.
- Terms below come through select programs in Lendmire’s wholesale network and are subject to underwriting.
What a DSCR HELOC Is (and What It Isn’t)
A DSCR HELOC is a standalone second lien behind the first mortgage you keep, or a standalone first lien on a rental with no mortgage. The rent qualifies the line. The lender does not calculate your personal income, and the property can stay in your LLC, subject to program terms.
It is never closed together with a purchase. It is never a third lien. It is never offered on a home you live in, including one unit of a house-hack.
Here is what it looks like on most files through select programs:
- Draw and repayment: a 5-year interest-only draw period, then a 25-year repayment period, with a 30-year maturity. The rate is variable.
- Draws: at least 80% of the line is drawn at closing, and later draws are at least $5,000 each.
- Line size: lines start at $50,000. A second lien runs to $500,000. A first lien runs to $1,000,000.
- Borrower: you need a Social Security number. Foreign nationals and ITIN borrowers are outside this program.
Notice the draw rule. This is not standby cash you leave untouched. Most of the line goes out the door at closing, so lenders treat it much like a flexible term loan.
For the full picture of how rent-qualified loans work across property types, see Lendmire’s complete DSCR loans guide.
Key Terms Defined
DSCR (debt service coverage ratio): monthly rent divided by the qualifying monthly payment. At 1.00x the rent exactly covers the payment. This program wants at least 1.10x.
Stress payment: a fully amortizing payment on the entire credit limit, figured at a higher test rate than the start rate. It is a coverage figure, not what you pay.
CLTV (combined loan-to-value): your first mortgage balance plus the new line, divided by the property’s value. On a first-lien line with no other mortgage, the same idea is plain LTV.
Lien: the lender’s legal claim on the property. A second lien sits behind the first mortgage in payback order.
Seasoning: a waiting period between events, such as buying or refinancing and then opening a new loan.
Draw period: the stretch when you can borrow from the line and pay interest only on what you have drawn.
Vesting: how title is held, such as in your own name or in an LLC.
How Underwriting Treats the Vacant Unit, Step by Step
Underwriting runs in a set order. Knowing it tells you where a vacant unit can hurt you.
Step 1: The eligibility screen. The property must be a non-owner-occupied 2–4 unit with no more than one vacant unit. It also has to be an eligible type. Rural-designated property, row homes, condotels, mixed-use or commercial property, leaseholds, land trusts and age-restricted communities are outside this lane. So is a property listed for sale in the prior 2 months.
Step 2: The valuation. The value sets your leverage. On lines up to $400,000, the program accepts an automated valuation (with a property inspection report) or a full interior appraisal. Above $400,000, it takes a full interior appraisal. Appraisal waivers are not accepted.
On a 2–4 unit, the traditional appraisal form is Form 1025. Fannie Mae’s Selling Guide names it as the report for two- to four-unit properties and names Form 1007 as the rent schedule for one-unit investment properties. DSCR loans are not agency products. The program simply uses the same family of forms to get a market rent opinion.
Step 3: Rent, unit by unit. Each occupied unit needs a lease. Expect a rent roll and proof of payment. Rent is the lesser of the appraisal’s market rent and the lease, unless three months of receipts support a lease above market.
Step 4: The vacant unit. It has no lease, so its rent can only come from the appraiser’s market opinion. Here is the honest part. The program does not spell out how much, if any, of that rent counts toward the test. The lender’s own coverage calculation governs. Before you order anything, ask your broker how the file treats the empty unit. Ask too whether a signed lease would change the answer.
Step 5: The coverage ratio. Total rent used for lender review is divided by the stress payment on the full line. The qualifying payment is principal and interest. Taxes and insurance are not part of it. On a second lien, confirm on the file how the lender treats the first-mortgage payment, because that choice can move the ratio.
Step 6: Leverage and the rest of the file. Credit tier, CLTV, line size and the 80%-drawn rule all get checked. Hazard insurance must cover both liens, and flood coverage is required where it applies.
The Requirements Checklist
This table shows what each requirement is, what gets reviewed and where a partly vacant building commonly trips.
| Requirement | What is reviewed | Where it breaks |
|---|---|---|
| Occupancy | Non-owner-occupied only | Owner lives in a unit |
| Vacancy | One vacant unit at most | Two or more empty |
| Lease | Lease in place on occupied units | Fully vacant building |
| Coverage | 1.10x on full-line stress payment | Large line, thin rent |
| Credit | 720 second lien; 700 first lien | Tier below the floor |
| Seasoning | 6 months since last note date and 6 months on title | Recent purchase or refinance |
| Reserves | None required | Not a barrier |
| Exposure | 5 loans or $2,500,000 per borrower | Larger portfolios |
Credit history also counts. The program looks for no 30-day mortgage late in the last 12 months. It wants 48 months since a bankruptcy, foreclosure, short sale or deed-in-lieu.
Leverage by lien position
Leverage is where the math tightens. All figures are ceilings through select programs, never offers:
- Second lien on an investment property: up to 70% CLTV at a 720 score or better, on lines of $50,000 to $500,000. There is no second-lien tier below 720.
- First lien on a rental with no mortgage: up to 75% LTV at 740 or better, and 70% LTV from 700 to 739, on lines to $500,000.
- First-lien lines above $500,000: the ceiling drops to 65% LTV at 720 or better, with lines running to $1,000,000. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
A declining-market flag can lower the ceiling by 5 points. If you keep a first mortgage, a second lien is your only path. A first lien exists only when the rental has no mortgage on it.
The seasoning rule, in one sentence: 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 you must have held title for 6 months (settlement date to note date).
What One Empty Unit Does to the Coverage Number
One vacancy does not change eligibility. It changes the math, and building size decides how much.
Say each unit rents for about the same. The table below is a modeled illustration, not sourced market data. It assumes the building clears 1.35x when fully leased. It then shows the worst case, where the lender counts nothing for the empty unit.
| Building | Rent share lost | Fully leased | One vacant, counted at zero |
|---|---|---|---|
| Duplex | One half | 1.35x | about 0.68x |
| Triplex | One third | 1.35x | about 0.90x |
| Fourplex | One quarter | 1.35x | about 1.01x |
Against a 1.10x test, only the fully leased building clears. Even the fourplex slips under. A duplex with a vacancy is a hard sell on rent alone.
Real files rarely land at the worst case. The appraiser’s market rent for the empty unit may stand in, in part or in full, depending on the lender’s calculation. Only the file can tell you which. Treat the zero case as your stress test and the market-rent case as your upside.
Why line size matters
The test runs on the whole credit limit, not the drawn balance. Since at least 80% of the line comes out at closing anyway, this is fair. But it means a bigger line raises the stress payment even if you plan to draw little afterward.
All else equal, the payment on the line scales with its size. Cut the line roughly in half and the coverage ratio on that payment roughly doubles. Shrinking the line is often the quickest lever you control when a vacancy pulls the ratio down. Remember the floor, though. Pricing and available terms vary by lender, borrower profile, property type, and full underwriting review.
Lendmire’s piece How a DSCR HELOC Works on a 2–4 Unit With One Vacant Unit walks through that interaction in more detail.
Where the General Rule Breaks
The one-vacancy rule is simple. The edge cases are where files get stuck.
Two or more vacant units. This is an eligibility decline. It isn’t a pricing problem and no amount of equity fixes it.
A fully vacant building. The program requires a lease in place, so a building with no tenants fails the test. Lease it up first. Or look at a different structure, such as a DSCR cash-out refinance or a first-lien DSCR loan, where market rent can often stand in for a lease. Programs differ, so that is a conversation, not a promise.
A unit under renovation. The one-vacancy limit still applies, and the rent is tested at market. A gutted or unrentable unit is a poor fit. The appraiser will not credit rent from space no tenant could occupy.
You live in one unit. The product is not offered. A building you occupy is owner-occupied, and that is a different product with a different test. The common path is to move out, lease your unit and apply as an investor once the six-month clocks have run.
A unit leased to a relative. Expect closer review, with the rent tested at market.
An unpermitted unit. Rent from a unit that isn’t a legal unit generally isn’t credited, and a mismatch between the stated and permitted unit count complicates the file.
A lease below market. The lease governs. Coverage stays low until the lease resets.
A lease above market. It earns nothing extra unless three months of receipts support it. Then it counts in full.
A purchase contrast helps here. On a DSCR purchase, many programs accept a vacant, rent-ready property on the appraiser’s market rent. This line is stricter, because it needs a lease in place on the units that are occupied.
Why Borrowers Get This Wrong
Myth: one vacancy disqualifies you. Not on this program. One is allowed. Two is the wall. Coverage is the actual risk.
Myth: market rent replaces a lease, as on a purchase. For a fully vacant building, it doesn’t. Market rent only stands in for the single empty unit, and only to the extent the lender’s calculation allows.
Myth: only the drawn balance matters. The payment test sizes itself on the full line.
Myth: consumer HELOC rules describe your rental line. The CFPB’s HELOC explainer is helpful for the general idea. A HELOC is an open-end line you can borrow against repeatedly, and a lender may restrict further credit if the property’s value falls significantly. But that material is written around owner-occupied homes and personal income. A DSCR HELOC is a business-purpose investor product that qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.
What If the Numbers Fall Short?
You have three levers: raise the rent counted, shrink the line, or change the structure.
Lease the vacant unit before applying. A signed lease puts real rent into the test. It also removes the gray area about how the lender counts an empty unit. If you have an applicant in hand, finish the lease first.
Reduce the line. Because the payment is sized on the full limit, a smaller line lifts coverage directly.
Change the structure. If the file still doesn’t clear, compare the alternatives. The table attributes each rule to its own program.
| Option | How it qualifies | Fit with a vacancy |
|---|---|---|
| DSCR HELOC (this program) | Rent, 1.10x on full line | One vacant unit, lease needed |
| DSCR cash-out refinance | Rent on a new first mortgage | Replaces your first mortgage |
| Bank-style investment HELOC | Usually personal income | Rent matters less than DTI |
A cash-out refinance replaces the mortgage you already have. If that first mortgage has terms you want to keep, the second-lien line exists for exactly that reason.
Think about the tradeoff honestly. A broker can’t promise which route wins. The stronger play is often the one that keeps your existing first mortgage and fixes the lease problem first. But if the building is mostly empty, a cash-out or purchase structure may be the more realistic fit.
Documents to Gather
Pull these together before you talk to a broker:
- Current leases for every occupied unit
- A rent roll listing each unit and its rent
- Three months of rent receipts, especially if any lease sits above market
- Your first mortgage statement, if you keep one
- Vesting documents if the property sits in an LLC
- Hazard insurance, plus flood coverage where required
- Proof of when you bought or last refinanced
Your tax returns, W-2s and pay stubs are not part of the qualifying package. The rent, the lease, the credit report and the valuation are all documented, though.
Frequently Asked Questions
Can I get a DSCR HELOC if one unit in my duplex, triplex or fourplex is vacant?
Yes, one vacant unit is allowed through select programs, provided the occupied units are leased and the rent still clears the 1.10x test. In a duplex, that vacancy removes half the rent, so coverage is much harder to reach. A fourplex absorbs it better. Eligibility and coverage are separate questions, subject to underwriting.
What happens with two vacant units?
The file is ineligible. Two or more vacant units in a 2–4 unit building is a decline on eligibility, not a pricing issue. The usual fix is to lease at least one unit before applying, or to look at a different structure.
Does the vacant unit’s market rent count toward coverage?
It may, but how much depends on the lender’s calculation, and the program doesn’t set a fixed treatment. The appraiser’s market rent opinion can stand in for the empty unit. Confirm with your broker how the file handles it before you order a valuation. Leasing the unit removes the question.
Can I get the line if I live in one of the units?
No. The product is only for non-owner-occupied investment property. If you live in one unit, the building is owner-occupied and a different product applies. Many owners move out, lease the unit, and then apply as investors.
How soon after buying or refinancing can I apply?
Two six-month clocks apply. 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).
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. The DSCR HELOC is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee. You can reach the team at 828-256-2183 or request a quote at Lendmire’s quote page.
One last point worth carrying into any lender conversation. In a partly vacant small building, the unit you haven’t leased is the one that sets your ceiling.
About Lendmire
As a mortgage broker (NMLS# 2371349), Lendmire helps landlords and real estate investors open DSCR home equity lines of credit on their rentals — lines qualified on the property’s rent, never on the owner’s own home — through wholesale lenders in 15 of Lendmire’s 16 licensed states (every licensed state except Tennessee). Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
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 Lenders Without Full Tax Returns · DSCR HELOC Requirements for a Property in a Flood Zone · How to Qualify for a DSCR HELOC as a Co-Owner Who Is on the Deed
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.