The Quick Read: It depends on how much of the 70% combined loan-to-value ceiling your first mortgage already uses, because on a second-lien line the maximum is value times 70%, minus the first mortgage balance, then capped at $500,000, and the rent test only decides whether the file qualifies at all.
- The ceiling on a second lien is 70% combined loan-to-value (CLTV) at a 720 credit score or better, subject to underwriting.
- Lines run from $50,000 up to $500,000 on a second lien, and up to $1,000,000 on a first lien through select programs.
- The rent must cover a stress payment on the entire line at 1.10x, so a bigger line can fail the rent test.
- ROI depends on whether the cash you deploy earns more than the line costs once the payment steps up. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
What Is a DSCR HELOC, Exactly?
A DSCR HELOC is a revolving line of credit secured by a rental you own. The rent, not your paycheck, qualifies it.
It is written as a standalone second lien behind the first mortgage you keep. It can also be a standalone first lien on a rental with no mortgage. It is never written together with a purchase, and it is never a third lien. It is not offered on your own home or a second home.
The line qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. There is no traditional personal-income documentation: no W-2s or personal income calculation. The credit report, the lease and the valuation are all documented. Title can sit in your LLC, and the members sign as guarantors, per lender program requirements.
The product is a niche one. Many large retail lenders decline investment-property lines altogether, and BiggerPockets investors describe them as scarce. Across Lendmire’s wholesale network, rent-qualified lines exist, but each program sets its own caps. The complete DSCR loans guide covers the wider loan family.
This line is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee. Lendmire is the broker. The lender approves the file.
The Formula: How Is the Maximum Line Calculated?
The maximum line is value times the maximum CLTV, minus every lien already recorded, then capped by the program’s dollar ceiling. CLTV is the total of all loans on the property divided by its value, as Wall Street Prep explains.
Here is the sequence a lender follows:
1. Set the value. Lines to $400,000 use an automated valuation (confidence score of 85 or better) with a property inspection report, or a full interior appraisal. Larger lines take a full interior appraisal. Appraisal waivers are not accepted.
2. Add existing liens. On a second lien, that means the first mortgage balance.
3. Apply the ceiling. On a second lien, multiply value by 70%, then subtract the liens. That gap is your equity room.
4. Apply the dollar caps. The line is the lesser of the equity room and $500,000. It also has to clear the $50,000 minimum.
5. Run the rent test. More on that below.
6. Check the gates. Credit score, seasoning and property type can shrink or block the line before the math matters.
One caution about the market. NerdWallet reports that most HELOC lenders cap CLTV at 85% on a primary residence. That figure does not apply to rentals. On a second-lien rental line in Lendmire’s network, the ceiling is 70% CLTV at a 720 score or better, and nothing above it.
The most common mistake is reading 70% as what you can borrow. It is the total allowed on the property. Your first mortgage uses part of it first.
Three Scenarios: Which Limit Binds First?
Run the math in percentages of value. The calculation below is illustrative, and the lender’s own figures govern.
| Scenario | First mortgage | Room under the ceiling | What binds |
|---|---|---|---|
| Low leverage, second lien | 40% of value | 30% of value | Rent test on the full line |
| High leverage, second lien | 65% of value | 5% of value | Often below the $50,000 minimum |
| No mortgage, high value, first lien | — | Up to 75% LTV at 740+ on lines to $500,000 | $500,000 line ceiling |
Low leverage. An investor owns a rental with a first mortgage at 40% of value. The room is 30% of value. On a typical rental that is a workable line, and the rent test becomes the next gate.
High leverage. Say you bought at a high loan-to-value, so the first mortgage sits at 65% of value. Only 5% of value remains. On many rentals that is smaller than the $50,000 minimum line, so there is nothing to write. A first mortgage at or above 70% of value leaves no room at all.
Where the dollar ceiling binds. Consider a high-value rental with no mortgage. A first lien reaches 75% loan-to-value (LTV) at a 740 score or better, and 70% from 700 to 739, on lines up to $500,000. Above $500,000, the ceiling drops to 65% LTV at 720 or better, and lines run to $1,000,000. On a valuable property, the dollar ceiling stops the line before the percentage does. Every figure here varies by lender and program, since guidelines, property type, leverage, and credit profile all apply.
There is also a score cliff. A second lien needs a 720 score. Below 720, there is no second-lien tier for a borrower who keeps a first mortgage.
Does a Higher DSCR Raise the Line?
No. A strong coverage ratio helps you qualify, but it does not lift the CLTV or the dollar cap. It can still limit you from the other direction.
DSCR is gross monthly rent divided by the qualifying payment. The program requires 1.10x. That payment is principal and interest on the entire credit limit, fully amortizing, at a stressed rate set above the starting rate. It is not the payment on what you actually draw. Taxes and insurance are not part of it.
That design has a consequence. A larger line means a larger stress payment, which lowers coverage. A rental with thin rent can have plenty of equity and still fail at the full line size. In that case rent, not equity, decides how much you can borrow. Asking for a smaller line can bring the ratio back above 1.10x.
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. On a two-to-four-unit property, at most one unit can be vacant.
On a second lien, confirm on the file how the lender treats the first-mortgage payment in its coverage calculation. The lender’s own calculation governs.
What Eligibility Gates Can Shrink or Block the Line?
Several gates apply before any math. All are subject to underwriting.
- Credit. A 720 minimum on a second lien, 700 on a first lien. The lender’s own credit report sets the tier. There must be no 30-day mortgage late in the last 12 months. A bankruptcy, foreclosure, short sale or deed-in-lieu needs 48 months behind it.
- 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).
- Property. Single-family, PUD, townhome, two-to-four units and condominiums are eligible, plus lots to 10 acres. Rural-designated property, row homes, condotels, commercial or agricultural property, leaseholds, land trusts and a property listed for sale in the prior 2 months are not.
- Market adjustments. A declining-market flag lowers the ceiling by 5 points. Philadelphia lines carry a ceiling 10 points lower.
- Exposure. At most 5 loans or $2,500,000 per borrower with the program.
- Borrowers. US citizens, permanent residents and non-permanent residents with a Social Security number. Foreign nationals and ITIN borrowers are not eligible.
No reserves and no cash to close are required. Investors holding title in an entity can read Lendmire’s guide to investment property HELOC rules for LLC-titled borrowers.
How Does the Draw Work?
You draw most of the line on day one. 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 structure has two phases. The draw period is 5 years, interest-only on the drawn balance. Then comes a 25-year fully amortizing repayment period, with a 30-year maturity. The rate is variable.
The Consumer Financial Protection Bureau notes that HELOC payments are often significantly higher once repayment begins. The same pattern applies here. The payment you carry during the draw period is not the payment you will carry for the next 25 years.
ROI on Borrowed Equity: When Does the Line Pay?
The line pays when the cash you deploy earns more than the line costs, after the payment steps up. No reliable public figure exists for the return on this product, so the framework below is qualitative.
Think in three steps:
1. Equity pulled out. The size of your draw.
2. Cost of the line. Interest on the drawn balance, which is variable, and the higher payment after year five.
3. What the cash earns. The return on the property, renovation or down payment you fund with it.
The break-even is simple. The deployed cash must earn at least what the line costs, with room left for vacancy and repairs. If the money buys a rental with healthy cash flow, the spread can be positive. If it funds a project that stalls, you still carry the payment.
Because at least 80% of the line is drawn at closing, you cannot treat the line as a standby cushion. Interest runs on most of the line from the start. A smaller line therefore carries less interest cost from day one. Size the line to the use, not to the maximum the formula allows.
Three stress points deserve a look before you commit:
- Rent falls or vacancy rises. Coverage on the stress payment tightens, and your own cash flow tightens with it.
- The variable rate climbs. The cost of the drawn balance rises while the return on your project stays fixed.
- Repayment begins. The amortizing payment is a different number from the interest-only payment, so model the later one.
A second lien also sits on the source property. It thins your equity cushion there. It can also lower the coverage ratio on that property if you refinance it later, so the line helps one deal and costs another a little flexibility.
DSCR HELOC or Cash-Out Refinance?
A line leaves your first mortgage alone. A cash-out refinance replaces it. That single difference drives most of the decision.
| Factor | DSCR HELOC | DSCR cash-out refinance | Personal-income investment HELOC |
|---|---|---|---|
| First mortgage | Stays in place | Replaced | Stays in place |
| Reviewed on | Property rent | Property rent | Your personal income |
| Structure | Revolving, variable rate | Lump sum | Varies by bank |
| Best fit | Keep a low existing first mortgage | Reset the whole loan | Borrowers who document income |
If your first mortgage is at a favorable cost, leaving it untouched can be worth more than the extra leverage a refinance would unlock. If you need a larger amount than a second lien allows, the refinance may be the better tool.
Key Terms Defined
DSCR: Debt service coverage ratio, meaning gross monthly rent divided by the qualifying payment.
CLTV: Combined loan-to-value, meaning all loans on the property divided by its value.
Lien position: Whether the line sits behind a first mortgage (second lien) or is the only loan (first lien).
Draw period: In this program, the first 5 years, interest-only on the drawn balance.
Seasoning: The waiting period a rental must meet after a purchase or refinance, and after you take title.
ROI on borrowed equity: What the deployed cash earns, measured against what the line costs.
Frequently Asked Questions
What is the most I can borrow on a rental I still have a mortgage on?
The most is $500,000, and only when value times 70% minus your first mortgage leaves that much room. That is on a second lien at a 720 score or better, subject to underwriting. For most rentals, the equity room is the smaller number. Rent coverage on the full line must also reach 1.10x.
Can I borrow on a rental with no mortgage?
Yes, as a first lien, through select programs. At a 740 score or better, the ceiling is 75% LTV on lines to $500,000. From 700 to 739 it is 70% LTV. Lines above $500,000 run to $1,000,000 at 65% LTV and a 720 score or better. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Does my LLC need to be on the line?
No, but it can be. Vesting in your LLC is allowed on an investment property, and members sign as guarantors, per lender program requirements. A title holder who is not a borrower signs a non-borrowing owner acknowledgment and the security instrument.
How long must I own the property 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). Both clocks must be clear at the same time.
Do tax returns or pay stubs matter?
No. The lender still reviews your credit report, the lease and the valuation.
Want to See How the Numbers Work on Your Rental?
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.
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. BiggerPockets – HELOC on an investment property
2. Wall Street Prep – Combined Loan-to-Value (CLTV)
3. NerdWallet – What is a HELOC
4. Consumer Financial Protection Bureau
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 Requirements and Timeline for Landlords · How to Qualify for a DSCR HELOC to Finance an Investment Property for Investors · Can One Spouse Take a DSCR HELOC on a Rental Held as Community Property?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.