The Quick Read: A DSCR HELOC is a revolving line of credit written as a standalone second lien behind a first mortgage you keep. It qualifies primarily on the rental’s income covering the payment, subject to lender guidelines. Your cheap first loan stays untouched, while the rent, your credit score, and the equity left over decide how large a line you can open.
- Lien position: a second lien behind your first mortgage, or a first lien only on a rental with no mortgage.
- Credit and leverage: 720 or better, with combined loan-to-value up to 70% on a second lien, through select programs and subject to underwriting.
- Coverage: a minimum 1.10x test on a stress payment across the entire line.
- Eligibility: two six-month clocks, and a property that fits the program’s list.
What Is a DSCR HELOC Behind Your First Mortgage?
It is a home equity line on a rental you own, not on your own home. The line records behind your existing mortgage, so that loan keeps its balance, its payment and its terms. The rent qualifies the file. The program calculates no personal income, and no traditional personal-income documentation, W-2s or pay stubs are needed.
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.
The line is only for non-owner-occupied one-to-four-unit rentals. It is never closed together with a purchase, and it is never a third lien. Vesting in your LLC is allowed on investment property, subject to program terms. The LLC members sign as guarantors. The program is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
Lendmire is the broker here. It places the line with a wholesale lender, and that lender underwrites every file individually.
Requirements at a Glance
Most buyers of this product want the whole checklist in one place. This table is the checklist. Every figure is a ceiling or floor on select programs, subject to underwriting, and none is an offer.
| Item | Typical requirement | Why it matters |
|---|---|---|
| Credit score | 720 second lien; 700 first lien | Sets which lien you can take |
| Second-lien leverage | Up to 70% CLTV | Limits room behind your first |
| Line size | $50,000 to $500,000 on a second | Small lines need real equity |
| Coverage | 1.10x minimum | Rent must carry the stress payment |
| Seasoning | 6 months since the last note date and 6 months on title | Fresh purchases wait |
| Reserves | None required | No cash to hold back |
| Borrowers | Citizens, permanent and non-permanent residents with an SSN | ITIN and foreign nationals are out |
| Mortgage history | No 30-day late in 12 months | Recent lates stop the file |
Credit history has a second layer. The program wants 48 months since any bankruptcy, foreclosure, short sale or deed-in-lieu. A borrower may hold at most 5 loans or $2,500,000 with the program.
How Much Room Does Your First Mortgage Leave?
Room equals the combined ceiling minus the share of value your first mortgage already uses. Combined loan-to-value (CLTV) adds your first-mortgage balance and the new line, then divides by the property’s value. On a second lien behind a kept first mortgage on a non-owner-occupied rental, the ceiling is 70% CLTV at a 720 score or better.
Run it with round percentages. These are modeled assumptions, not market data.
- A first at 40% of value: this leaves 30% of value for the line.
- A first at 60% of value: this leaves 10% of value. Whether that clears the $50,000 minimum line depends on the property’s value.
- A first at 70% of value or more: this leaves nothing, and the line is off the table.
A rental you bought long ago with a normal down payment often lands in the first or second group. A recent purchase with a small down payment often lands in the third. Multiply your value by the room percentage, then compare the result to the minimum line.
A paid-off rental is a different path. It takes a first-lien line, up to 75% loan-to-value at 740 or better and 70% from 700 to 739 on lines to $500,000. Lines above $500,000, to $1,000,000, carry a 65% ceiling at 720 or better. A declining-market flag can lower any ceiling by 5 points.
How Does Coverage Work When Your First Mortgage Stays?
Coverage is gross monthly rent divided by a qualifying payment. That payment is a fully amortizing principal-and-interest payment on the entire credit limit, at the start rate plus 2 percentage points. It is a stress payment. Taxes and insurance are not part of it.
Rent is the lesser of the appraisal’s Form 1007 market rent and the lease, unless three months of receipts support a lease above market. A lease must be in place. A two-to-four-unit property may have at most 1 vacant unit.
Confirm on the file how the lender treats the first-mortgage payment, because the lender’s own coverage calculation governs. The arithmetic here is illustrative only.
One practical point matters more than the formula. The stress payment runs on the whole limit, not the drawn balance. A line you size generously costs you coverage even if you never plan to use it all. In practice, borrowers are asked to draw at least 80% of the line at closing, so the whole limit is usually in play anyway.
Is a Sub-4% First Mortgage Worth Keeping?
It is worth keeping when the equity room covers what you need and the rent can carry a variable-rate line. Refinancing everything replaces your cheap first loan with a new one at today’s higher cost. A second lien leaves it in place.
Many owners face this choice. WRE News, reporting on a Realtor.com analysis of federal mortgage data, found that 65.6% of outstanding first-lien mortgages sit below 5%. It put 19.2% below 3%. Those figures describe existing loans, not what new borrowers can get, and they cover all mortgages rather than investor loans.
Here is a neutral test using shares of balance, with no rates. Say your first is 50% of value and you add a line worth 20% of value. About 70% of your total borrowing, five-sevenths of it, stays in the cheap loan. A full refinance would reprice all of it. The cheap loan’s share is your advantage, and it shrinks as the line grows.
The keep-the-first plan loses its edge in four cases:
1. The first mortgage is nearly paid off, so little cheap debt is left to protect.
2. Your cash need is larger than the room.
3. The rent only barely clears coverage.
4. You cannot tolerate a payment that floats.
The honest counter-case is a cash-out refinance, covered below.
Check Your First Note Before You Apply
Read the first mortgage note and deed of trust for any clause about junior liens. Ask the servicer if the language is unclear. A second lien does not pay off the first, so a prepayment penalty on the first generally is not triggered, but the note decides that, not a general rule. If the note forbids a junior lien, the structure changes before the application starts.
What Blocks a File
Several gates stop files before the coverage test matters. Check them in order.
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).
The property type is the next gate. Eligible types include single-family, PUD, townhome, two-to-four units, warrantable and non-warrantable condominiums, and lots to 10 acres. These are outside the program:
- Rural-designated property, row homes, condotels, and leaseholds
- Land trusts, age-restricted communities, hobby farms, and modular and log homes
- Commercial, agricultural, and mixed-use property
- A property listed for sale in the prior 2 months, or one with a solar lien
Valuation is a third gate. 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. Hazard insurance must cover both liens, with flood coverage where required.
Where the General Rule Breaks
Your first mortgage is too large. If it leaves no room under the ceiling, a second lien cannot fit. The alternative is a DSCR cash-out refinance of the whole loan, which gives up the low first mortgage.
Your score is 700 to 719 and you keep a first mortgage. The second lien needs 720. A first lien exists only on a rental with no mortgage, so it does not solve this. Your choices are to raise the score, use a different program, or refinance the first.
Another line already sits on the rental. A third lien is not available. Paying one off first may change the picture.
You document income instead of using rent. That is a different product.
You want to use your primary home’s equity. That is an owner-occupied product with its own rules, and this line is never offered on an owner-occupied home.
You expect a tax deduction to settle the question. 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.
How the Line Itself Behaves
The line has a 5-year interest-only draw period on the drawn balance. A 25-year fully amortizing repayment period follows, and the maturity is 30 years. At least 80% of the line is drawn at closing, with a closing draw never below $50,000. Later draws must be at least $5,000 each.
The rate is variable, so payments can move. The CFPB’s HELOC booklet explains that payments on a variable-rate line can change even if you draw nothing more. It also notes that payments are often much higher once the draw period ends. Stress-test your rent against both events, the floating rate and the shift to amortization.
Clearing 1.10x is a qualifying test, not a profit measure. A rental that barely clears the minimum, behind a first mortgage, with a floating second lien on top, is a thin setup.
Line, Cash-Out or Bank HELOC?
The three structures differ most in what happens to your first mortgage and who gets underwritten.
| Factor | DSCR HELOC | DSCR cash-out refi | Bank-style HELOC |
|---|---|---|---|
| Your first mortgage | Stays in place | Replaced | Stays in place |
| Qualified on | Rental income | Rental income | Personal income |
| Structure | Variable-rate line | New single loan | Varies by bank |
| Best when | Low first, enough room | First is large | You fit a bank’s file |
A bank-style investment HELOC is personally underwritten. NerdWallet notes that many lenders do not offer them on rentals, so the pool is smaller.
Key Terms Defined
DSCR: the debt service coverage ratio, meaning gross monthly rent divided by the qualifying payment.
CLTV: combined loan-to-value, meaning the first-mortgage balance plus the new line, divided by the property’s value.
Second lien: a loan that records behind a first mortgage and is repaid after it in a sale or default.
Stress payment: a fully amortizing payment on the entire line, at the start rate plus 2 percentage points, used only to qualify.
Draw period: the first 5 years, when you pay interest only on the drawn balance.
Seasoning: the waiting time after a purchase or refinance before the line becomes available.
Your Pre-Application Checklist
1. Estimate value and subtract your first-mortgage share to find the room. 2. Read the first note for any junior-lien clause. 3. Pull your credit and confirm you clear 720 on a second lien. 4. Gather the lease, rent receipts if the lease is above market, and the first-mortgage statement. 5. Confirm hazard insurance, and flood coverage where required. 6. Confirm title and vesting, including LLC members as guarantors. 7. Confirm the property type is on the eligible list.
Frequently Asked Questions
Will a DSCR HELOC change my first mortgage?
No. The line records behind it, so the first loan keeps its balance, payment and terms. Only a first-lien line on a rental with no mortgage stands alone in first position. Never try to place a first-lien line on a mortgaged rental, since it would pay off the loan you want to keep.
Do I need tax returns or W-2s?
No. The program reviews the file on the rental’s income, subject to lender guidelines, with no personal income calculation. The rent, the lease, your credit report and the valuation are all documented. Your credit and mortgage history are still reviewed.
Can I take the line in my LLC?
Yes, on investment property, subject to program terms. The LLC 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 match those on the first mortgage.
How long must I own the rental first?
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).
What if my score is 700 to 719?
A second lien behind a kept first mortgage needs 720, so you would need a higher score or a different structure. A first lien starts at 700, but it applies only to a rental with no mortgage. A cash-out refinance of your first mortgage is another route, though it gives up the low loan.
If You Are Weighing This Structure
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. For the wider picture, start with the complete DSCR loans guide, then reach the team at 828-256-2183.
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.
Investors who want the broader program framework can review how DSCR loans work.
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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. WRE News
2. CFPB, What you should know about HELOCs
3. NerdWallet, HELOC on an Investment Property
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 for a Landlord With a Low First Mortgage · DSCR HELOC Requirements for Landlords Choosing a Lender · DSCR HELOC Lenders Without Refinancing Your Current Mortgage
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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- 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
Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.