The Quick Read: It depends on which limit binds first: the equity limit or the rent limit. The maximum line is the lower of those two, and on a second lien the equity limit is usually the tighter one.
- Second lien: combined loan-to-value up to 70% at a 720 score or better, lines up to $500,000, subject to underwriting.
- First lien on a rental with no mortgage: up to 75% LTV at 740 or better, lines to $1,000,000, with 65% on lines above $500,000.
- Rent must cover a stress payment on the entire line at 1.10x or better.
- The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.
The rest of this piece shows how each cap works and when the line beats the refinance. Figures are ceilings through select programs, not offers.
How Is the Maximum Line Calculated?
The formula is simple: combined loan-to-value cap times property value, minus every lien already recorded. The result is the equity limit.
Run it with round, modeled numbers. Say a rental is worth $400,000 and the first mortgage balance sits at 50% of value. A 70% combined cap leaves 20% of value for the line. Now say the first sits at 65% of value. The same cap leaves 5% of value, which is $20,000 and below the $50,000 floor. No line.
The first mortgage balance decides the answer before rent is ever tested. A first mortgage at 70% of value or higher leaves nothing.
The CFPB describes the same logic for HELOCs in general: you typically borrow a set percentage of your equity, and equity is value minus what you owe.
Key Terms Defined
DSCR HELOC: a revolving line on a rental, qualified on the property’s rent instead of the owner’s personal income.
Combined loan-to-value (CLTV): the first mortgage balance plus the new line, divided by property value.
DSCR: gross monthly rent divided by the qualifying payment.
Draw period: the first 5 years, when interest-only payments apply on the drawn balance.
Seasoning: how long the owner has held title and how long since the last purchase or refinance.
What Does Rent Do to the Limit?
Rent sets a second ceiling. The program tests a fully amortizing payment on the entire credit limit, at the start rate plus 2 percentage points, against gross monthly rent. The minimum is 1.10x. That is a stress payment on the whole line, drawn or not.
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 can have at most one vacant unit.
Taxes and insurance are not part of the qualifying payment. How the lender treats the first-mortgage payment on a second lien is something to confirm on the file, because the lender’s coverage calculation governs.
So the rent limit is the largest line at which rent still clears 1.10x. Take the smaller of the equity limit and the rent limit. Strong rent does not raise the equity ceiling. Weak rent can pull the line below it.
How Do Leverage Tiers Change the Amount?
Lien position and credit score set the cap. Credit above the floor does not buy more leverage on a second lien.
| Structure | Credit score | Leverage cap | Line size |
|---|---|---|---|
| Second lien (CLTV) | 720+ | 70% | $50,000–$500,000 |
| First lien (LTV), no mortgage | 740+ | 75% | to $500,000 |
| First lien (LTV), no mortgage | 700–739 | 70% | to $500,000 |
| First lien (LTV), no mortgage | 720+ | 65% | $500,000–$1,000,000 |
Below 720 there is no second-lien option. A borrower who keeps a first mortgage can only take a second lien. A first lien exists only on a rental with no mortgage.
A declining-market flag lowers the ceiling by 5 points. Philadelphia lines carry a ceiling 10 points lower. All of this is subject to underwriting.
Which Cap Binds First?
On most second-lien files, the 70% combined cap binds before the $500,000 dollar cap. The dollar cap only matters on high-value, low-balance properties. On a rental worth well over $700,000 with a small first mortgage, the $500,000 limit stops the line before the percentage does.
Rent binds when the property is thinly rented for its value. A large line at a full stress payment can push coverage under 1.10x even with plenty of equity.
The floor binds on the other end. Lines start at $50,000, and the closing draw is never under $50,000. On the smallest lines, that means the whole line is drawn at closing. Later draws are at least $5,000 each.
DSCR HELOC vs. Cash-Out Refinance
The two products answer different questions. A line adds a second obligation and leaves the first mortgage alone. A cash-out refinance replaces the first mortgage with a new, larger one.
| Factor | DSCR HELOC | Cash-out refinance |
|---|---|---|
| Lien | Second lien, or first on no-mortgage rental | Replaces the first mortgage |
| Cash delivery | Revolving; 80%+ drawn at closing | Lump sum |
| Leverage basis | 70% CLTV second; up to 75% LTV first | Typically higher; up to 75% on standard rentals |
| DSCR test | Stress payment on the entire line | Payment on the new loan |
| Seasoning | 6 months since last note date and 6 months on title | Varies by program |
| Title | Individual, trust or LLC | Varies by program |
| Existing first mortgage | Stays in place | Paid off |
A cash-out refinance on a standard rental generally reaches higher leverage and larger dollars than a second-lien line, and a DSCR cash-out can run well past $500,000 on standard programs. The line tops out at $500,000 on a second lien. See the complete DSCR loans guide for how the broader product family fits together.
Three Modeled Scenarios
These use round, assumed values to show which route fits. Coverage is stated as a ratio only.
Low balance. A $300,000 rental has a first mortgage at 35% of value. A 70% combined cap leaves 35% of value for the line, which is $105,000, well above the floor. Rent clears the stress test on the full line at roughly 1.2x. The line works, and the owner keeps a low-cost first mortgage in place.
Mid balance. A $500,000 rental has a first mortgage at 60% of value. The cap leaves 10% of value, or $50,000, right at the floor. It works only if the whole line is drawn at closing. Past that, a cash-out refinance is the more realistic route.
High balance. A $900,000 rental with a small first mortgage. Equity would allow more than $500,000, but a second-lien line stops at $500,000. If the owner needs more, a cash-out refinance is the route, with rent tested on the larger new loan.
In each case, the decision runs on the same inputs: value, existing balance, rent coverage and how much cash the owner needs.
When Does the Line Beat the Refinance?
A line fits when the existing first mortgage is worth keeping, the amount needed is under the cap, and the money may not be deployed all at once. Interest-only payments run on the drawn balance during the 5-year draw period, then a 25-year repayment period follows, with a 30-year maturity. The rate is variable.
A refinance fits when the first mortgage is expensive, the amount needed is large, or the owner wants a single obligation. Investor discussions on BiggerPockets point the same way: the longer the wait before putting the money to work, the more a line appeals. That is opinion, not underwriting.
Across the wholesale network, the line is built as a bolt-on to an existing first. It also works as a standalone first lien on a paid-off rental. The refinance is the better tool when the first mortgage itself needs to change.
One sequencing point: a line first, then a refinance later, is workable, but the seasoning clock matters. 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).
What About the File Itself?
Valuation depends on line size. Lines 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 need a full interior appraisal on Form 1004, 1073 or 1025. Appraisal waivers are not accepted.
Other file points:
- No reserves and no cash to close are required, subject to underwriting.
- Credit: 720 on a second lien, 700 on a first lien, no 30-day mortgage late in the last 12 months, and 48 months since a bankruptcy, foreclosure, short sale or deed-in-lieu.
- Exposure: at most 5 loans or $2,500,000 per borrower with the program.
- Title: a full title policy on a first lien and on second liens above $400,000.
The LLC can stay on title for an investment property, subject to lender program eligibility. Members sign as guarantors.
Not eligible: rural-designated property, condotels, row homes, leaseholds, land trusts, age-restricted communities, mixed-use, and a property listed for sale in the prior 2 months, among others. Foreign nationals and ITIN borrowers are not eligible. The program is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
When Neither Fits
Walk away from the line if rent cannot clear 1.10x on the whole line, or if the property is a freshly bought rental. A new purchase often leaves no room for a second lien until the balance falls or value rises.
A line on your own home to fund rentals is a different product. Some HELOC terms restrict renting out the home, as the CFPB’s HELOC brochure notes. This program is never written on an owner-occupied home.
Also remember the home-at-risk point. The CFPB warns that a HELOC puts the home at risk if the borrower cannot repay. Here, the rental is the collateral.
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 through the quote request page.
Frequently Asked Questions
What is the most I can borrow on a DSCR HELOC?
Up to $500,000 on a second lien at 70% CLTV with a 720 score or better, through select programs. A first lien on a rental with no mortgage can reach $1,000,000, but lines above $500,000 carry a 65% LTV ceiling. Rent must also cover the stress payment at 1.10x. Subject to underwriting. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
Does higher credit raise the amount on a second lien?
No. A second lien has one tier, 720 or better at 70% CLTV. Below 720 there is no second-lien option. On a first lien, the score does matter: 740 or better reaches 75% LTV, while 700 to 739 reaches 70%. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
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).
Can my LLC hold title?
Yes, on an investment property, subject to program terms. The members sign as guarantors, and a title holder who is not a borrower signs a non-borrowing owner acknowledgment and the security instrument.
Is a cash-out refinance always the bigger option?
Usually on leverage and dollar size, yes. A DSCR cash-out reaches higher leverage on standard rentals and larger sums than a second-lien line. The trade-off is that it reprices the entire first mortgage, while the line leaves it in place.
For how equity extraction works on an investment property, see Lendmire’s guide to cash-out refinance on an investment property.
For current guidelines and terms, see Lendmire’s DSCR HELOC programs page.
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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References
2. BiggerPockets – HELOC vs cash-out refi
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 vs DSCR Cash-Out Refinance Sold to a New Servicer After Closing · DSCR HELOC vs DSCR Cash-Out Refinance With a 0x30 Mortgage History in the Last 12 Months · How Much Can You Borrow on a DSCR HELOC on a Vacant Rental Without a Lease?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.