The Quick Read: A DSCR HELOC for a borrower who keeps a mortgage is a standalone second lien behind the existing first loan. The rental’s income qualifies the line, not the owner’s personal income, and the first mortgage is left alone. Through select programs, the file is sized on combined leverage and a rent coverage test of at least 1.10x on a stress payment across the whole line, subject to underwriting.
- The line sits behind the first mortgage. It is not a refinance and never a third lien.
- Combined loan-to-value (the first balance plus the new line, divided by value) tops out at 70% at a 720 credit score or better.
- Lines run from $50,000 to $500,000 as a second lien.
- No traditional personal-income documentation, W-2s, pay stubs or debt-to-income calculation. The rent, lease, credit report and valuation are all documented.
- The LLC can stay on title, subject to program terms.
- Offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
What Is a DSCR HELOC When a First Mortgage Stays in Place?
A DSCR HELOC is a revolving line of credit secured by a rental you already own, qualified on what the property earns. When you keep a first mortgage, the line is written as a standalone second lien in the junior position. Your first loan keeps its balance, its terms and its servicer.
Think of it as two separate loans on one property. The first mortgage keeps running as it always has. The line is new money behind it. That is the main difference from a cash-out refinance, which replaces the old mortgage with a larger one. NerdWallet’s investment-property coverage draws the same line, noting that an owner who wants equity from a mostly-rental property may find a DSCR second mortgage a better fit than a refinance.
The structure borrows from the consumer HELOC. The CFPB describes a draw period followed by a repayment period. Where a first mortgage exists, the line is a second mortgage paid in addition to the first. A DSCR line is a business-purpose, investor version of that structure. It is never offered on an owner-occupied home.
Lendmire is a broker. It places these files through a wholesale lender in its network, and the lender reviews and approves them.
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 recorded behind the first mortgage, paid after it if the property is ever sold or foreclosed.
Draw period: The stretch when you can borrow from the line. Here it is 5 years, interest-only on the drawn balance.
Repayment period: The stretch after the draw period when the balance amortizes. Here it is 25 years, within a 30-year maturity.
Stress payment: A fully amortizing payment on the entire credit limit, calculated at a higher test rate than the start rate.
How Underwriting Treats a Line Behind Your Mortgage
The file passes through a short series of gates. Each one can stop it, so the order matters.
| Gate | What the lender checks | What you supply |
|---|---|---|
| Property | Eligible type, not on the excluded list | Address, property details |
| Rent coverage | At least 1.10x on the stress payment | Lease, valuation rent figure |
| Equity | CLTV up to 70% | First mortgage statement |
| Credit | 720 minimum on a second lien | Credit authorization |
| Seasoning | Two six-month clocks | Closing documents, deed |
| Title | Vesting, guarantors | Entity papers if an LLC |
| Valuation | Automated valuation or full appraisal | Access for an inspection |
Gate 1: The rent coverage test
Coverage is gross monthly rent divided by the qualifying payment. On this program the qualifying payment is a fully amortizing payment on the entire credit limit, run at the start rate plus 2 percentage points. It covers principal and interest only. Taxes and insurance are not part of it.
Two details matter here. First, the test runs on the whole line, not on what you plan to draw. A $300,000 line that you draw only partly still gets tested as if it were fully used. Second, at least 80% of the line is drawn at closing, so the practical gap between the limit and the balance is small.
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. A two-to-four-unit property may have at most 1 vacant unit.
How the first-mortgage payment figures into a second-lien coverage calculation is not published. Confirm on the file how the lender treats it, because that one answer can move a borderline rental above or below 1.10x. The lender’s own calculation governs.
Gate 2: Equity and combined leverage
For a borrower keeping a first mortgage, the ceiling is 70% CLTV at a 720 score or better. Below 720 there is no second-lien tier. The existing balance counts against that ceiling, so the room you have equals the 70% ceiling on value, minus what you still owe on the first.
For comparison, the CFPB’s HELOC booklet shows the same subtraction on a consumer line, using a 75% figure purely as an example. The method is the same. The ceiling is different.
A declining-market flag lowers the ceiling. Philadelphia lines carry a lower ceiling as well.
Gate 3: Credit and mortgage history
A 720 minimum applies on a second lien, and the tier comes from the lender’s own credit report. No 30-day late payment in the last 12 months is allowed. Forty-eight months must have passed since a bankruptcy, foreclosure, short sale or deed-in-lieu. No reserves and no cash to close are required, subject to underwriting.
Gate 4: 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).
Gate 5: 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. Appraisal waivers are not accepted. The appraiser’s Form 1007 supplies the market rent used in the coverage test.
Does Keeping the First Mortgage Hurt the Coverage Test?
It can, which is why borrowers sometimes see a rental that looks strong on its own come up short with a line added. The cause is the stress payment on the full limit. A bigger line means a bigger qualifying payment, and rent has to cover it at 1.10x.
Run the logic without dollars. Say a rental’s rent covers its first-mortgage payment at a comfortable multiple. A modest line may still clear 1.10x. Push the limit up toward the $500,000 ceiling and the coverage can drop below that floor, even though CLTV still has room. Leverage and coverage are two separate constraints, and the tighter one sets your line size.
That is why the right line is often smaller than the maximum. A borrower who wants a $150,000 line for a down payment does not gain anything by sizing at the limit. Size to the need and let the coverage test work in your favor.
How Much Line Can You Actually Get?
The ceiling is a simple formula: value times 70%, minus the first mortgage balance. Take a rental valued at $600,000 with a first mortgage balance of $250,000. At 70% CLTV, combined debt tops out at $420,000, which leaves $170,000 of room. That is illustrative arithmetic only. Coverage, valuation and the lender’s own calculation decide the actual line.
Two rules shape the result:
- Lines start at $50,000. If the room is smaller than that, the product does not fit.
- 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 are at least $5,000 each.
This is not a standby reserve. Interest on the drawn balance starts right away, which is also why the CFPB notes that some plans require an initial draw or a minimum per draw. Plan for the balance to be in use from day one.
The rate is variable. Payments change with the balance and with the rate. The rate and pricing terms come with the lender’s disclosures.
Where the General Rule Breaks
Several situations change the answer for a borrower keeping a mortgage.
Rural property. Rural-designated property is outside this lane. So are row homes, condotels, commercial or agricultural property, leaseholds, land trusts, age-restricted communities, hobby farms, modular and log homes, mixed-use, and land contracts.
Recently listed property. A property listed for sale in the prior 2 months is out. So is a property with a solar lien.
Vacant units. A single-family rental needs a lease in place. A two-to-four-unit building can carry at most 1 vacant unit.
Credit between 700 and 719. A first-lien floor of 700 does not help here. Because you are keeping a first mortgage, only the second-lien lane applies, and its floor is 720.
LLC title. Vesting in your LLC is allowed on 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 match the borrowers on the first mortgage. This is subject to program terms.
Borrower status. U.S. citizens, permanent residents and non-permanent residents with a Social Security number are eligible. Foreign nationals and ITIN borrowers are not.
Portfolio size. A borrower is limited to 5 loans or $2,500,000 with the program.
Selling the property. A line behind a first mortgage generally must be paid off when the property sells.
When the Rental Has No Mortgage
This article is about keeping a first mortgage, but the contrast helps. A rental with no mortgage can take a standalone first-lien line. The leverage there is up to 75% LTV at 740 or better and 70% at 700 to 739, on lines up to $500,000. Lines above $500,000 run to $1,000,000 at a 65% ceiling. A borrower with a mortgage, even a small one, cannot use these tiers. The first lien exists only on a property with no mortgage. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
Document Checklist
Most missing items are quick to fix. Group them by who supplies what.
- From you: signed credit authorization, the current first mortgage statement, hazard insurance evidence (covering both liens, with flood coverage where required), and a business-purpose certification with the intended use of funds.
- From the tenant side: the lease in place and, if you want a lease above market to count, three months of rent receipts.
- From the entity, if applicable: articles, operating agreement, and guarantor signatures.
- From the lender’s side: the valuation, the title work, and the credit report. Lines above $400,000 and all first liens need a full title policy. Smaller second liens use an owner-and-encumbrance report.
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.
Keep the Mortgage or Replace It?
The decision depends on what the existing loan is worth to you. If your first mortgage has terms you would not match today, a second lien lets you leave it in place. If the first loan is expensive or near maturity, replacing it may be the cleaner path.
| Option | First mortgage | Structure | Fits when |
|---|---|---|---|
| DSCR HELOC (second lien) | Stays | Revolving, variable rate | You want to keep a good first loan |
| DSCR cash-out refinance | Replaced | One new loan | You want to reset the whole structure |
| Bank HELOC on a rental | Stays | Personal-income based | You have strong traditional employment income and bank access |
| Bank statement HELOC | Stays | Documented deposits | Income is self-employed and uneven |
Bank programs follow their own rules. NerdWallet reports that bank HELOCs on investment property often ask for a 720 score or higher, six months of reserves and a debt-to-income ratio between 40% and 50%. The DSCR line drops the income and reserve tests, and replaces them with the coverage test and valuation.
Here is the flip point. If your personal income is strong and a bank will lend on the rental, a bank line may carry a lower cost. If you hold the rental in an LLC, are self-employed, or already carry several financed properties, the rent-based path is usually the practical one. A variable rate and a full-limit stress test are real tradeoffs. Neither is a reason to avoid the product, but both deserve a sober look.
For the full picture of how these loans fit together, see the complete DSCR loans guide.
One Pattern Across the Wholesale Network
Across the wholesale network, files with a second lien fail for the same few reasons. The borrower sizes the line to the equity room and ignores the coverage test. A rental was refinanced a few months earlier and misses the seasoning clock. Or the lease runs far above market and nobody gathered three months of receipts. Checking those three before applying prevents most of the surprises.
Use of Funds and Tax Note
The line is a business-purpose loan, so expect a certification and a documented 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.
One timing rule matters for acquisitions. The line must exist before you go under contract on the next property. It is never closed together with a purchase.
Frequently Asked Questions
Can I get a DSCR HELOC if I keep my first mortgage?
Yes, through select programs, as a standalone second lien behind your first mortgage. The first loan is not refinanced. Combined leverage tops out at 70% at a 720 score or better, with lines from $50,000 to $500,000, subject to underwriting.
Does the line replace my mortgage like a cash-out refinance does?
No. A cash-out refinance swaps the old mortgage for a new, larger one. The line is a separate second loan. Your first mortgage keeps its terms, and you carry two payments.
How soon after buying or refinancing can I apply?
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).
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. The lease, the credit report and the valuation are all documented.
Can my LLC hold title?
Yes, on investment property, subject to program terms. The members sign as guarantors.
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. You can reach the team at 828-256-2183 or request a quote. Programs change, and every file is underwritten individually.
For borrowers who mostly bank on cash flow, the sharpest lesson is simple: the rent decides the line, so a rental with thin coverage should be fixed before it is financed.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) arranging DSCR home equity lines of credit — standalone first or second liens on non-owner-occupied one-to-four-unit rentals, qualified on rent — through a wholesale lending network in 15 of its 16 licensed states (every licensed state except Tennessee). Eligibility is determined by the lender on each file. 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. NerdWallet – Can you get a HELOC on an investment property (DSCR second mortgage)
2. CFPB
4. NerdWallet – HELOC on 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: DSCR HELOC Rules With Both Spouses on the First Mortgage · DSCR HELOC Requirements With No Monthly Payment · Best DSCR HELOC Program When You Are Not on the Existing Mortgage
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.