The Quick Read: You open a DSCR HELOC on a rental you already own, leave its first mortgage untouched, draw the cash for the down payment on the next rental, and then close a separate purchase loan on that property, with the line qualifying primarily on property-level rental income covering the payment, subject to lender guidelines. The line is a second lien, so your existing first loan keeps its terms. Lendmire is a broker and arranges these lines through select lenders in its wholesale network.
- The line sits behind your first mortgage and is qualified on the rental’s rent. It needs no traditional personal-income documentation, W-2s or personal income calculation, subject to lender guidelines.
- On a second lien, combined loan-to-value (CLTV) typically tops out at 70% with a 720 credit score or better, on lines from $50,000 to $500,000, subject to underwriting.
- The line is not the purchase loan. You need a second, separate approval on the property you are buying.
- The line payment stays out of the new property’s coverage ratio, but it still comes out of your real cash flow.
- Because the closing draw is large, plan the line size around real cash needs.
What Is a DSCR HELOC, and Which Version Keeps Your First Loan?
A DSCR HELOC is a revolving line of credit secured by a rental you keep. It is written as a standalone second lien behind your first mortgage, or as a standalone first lien on a rental with no mortgage. The rent qualifies it, not your paycheck. Only the second-lien version leaves a low-rate first mortgage alone.
Pay attention to lien position, because the label “DSCR HELOC” gets stretched. Some products pay off your existing first mortgage and become the new first lien. That defeats the purpose if your goal is to protect a very cheap first loan. Confirm before you apply that the line sits behind the loan you are keeping.
A few boundaries define the product:
- Collateral: a non-owner-occupied one-to-four-unit rental. It is never a line on your own home or a second home. A primary-residence HELOC is a different, owner-occupied product.
- Timing: the line is never closed together with a purchase. You open it on the rental you already own first.
- Lien position: never a third lien.
- Title: an LLC can stay on title, depending on program guidelines. The members sign as guarantors.
- Footprint: the line is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
Lines like this are less common than HELOCs on a primary home. Experian notes that a HELOC can supply the down payment on another rental without draining savings or refinancing the current loan. It also says rental-secured lines are harder to find, which is why the program details below matter.
For the broader picture of how these loans fit together, see Lendmire’s complete DSCR loans guide.
Key Terms Defined
DSCR (debt service coverage ratio): gross monthly rent divided by the qualifying monthly payment. A result above 1.00x means the rent covers that payment.
CLTV (combined loan-to-value): every loan on the property added together, divided by the property’s value. On a second lien it includes your first mortgage plus the new line.
Second lien: a loan that sits behind the first mortgage. If the property were sold or foreclosed, the first lender is paid first.
Draw period: the stretch when you can borrow from the line and pay interest only on what you have drawn.
Seasoning: the waiting period a lender wants after you buy or refinance a property before it will lend against it.
Source of funds: the paper trail a purchase lender uses to see where your down payment came from.
Why Is a Very Low First Mortgage Worth Protecting?
A very low first mortgage is cheap money, and a cash-out refinance throws it away. Refinancing replaces the whole balance with a new loan at today’s pricing. A second-lien line borrows only the slice of equity you need and leaves the cheap balance alone.
Think in slices of the property’s value. Say your first mortgage covers 45% of what the rental is worth, and you want a line that takes combined leverage to 70%. The new, higher-priced variable-rate money applies to a 25-point slice. The cheap loan keeps the other 45 points.
A cash-out refinance reprices all 70 points. That is the blended-cost argument, and it needs no pricing quote to see. The more of your total debt that stays at the old pricing, the better the blend.
There is a counterweight. The line carries a variable rate, so its cost can move. A refinance can offer a fixed-rate option. If you want certainty more than a low blended cost, that matters. The rate and pricing terms come with the lender’s disclosures.
How Much Line Does Your Equity Support?
Start with a simple formula: property value times the allowed combined leverage, minus your first mortgage balance. On a second lien, the allowed figure is typically 70% CLTV at a 720 credit score or better, subject to underwriting. Below a 720 score, this program has no second-lien option.
Here is how the room changes with the size of the existing first mortgage:
| First mortgage, as % of value | Room under 70% CLTV | Result |
|---|---|---|
| 45% | 25 points of value | Room for a meaningful line |
| 60% | 10 points of value | Thin; may fall under the line minimum |
| 70% or more | None | No second-lien room |
Lines start at $50,000, so ten points of room only works on a higher-value rental. Second-lien lines run up to $500,000 on this program.
If the rental has no mortgage, the first-lien version applies. Leverage runs up to 75% loan-to-value (LTV) at a 740 score or better, and up to 70% LTV from 700 to 739, on lines up to $500,000. Lines above $500,000, up to $1,000,000, carry a 65% LTV ceiling at 720 or better. A borrower who keeps a first mortgage can only take the second lien. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
One more sizing fact shapes your plan. 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. Interest runs on the drawn balance, so do not open a bigger line than the deal needs. Later draws must be at least $5,000 each.
How Is Each Loan Underwritten?
The line and the purchase loan are two separate approvals, and each reads a different property. The line reads the rental you already own. The purchase loan reads the rental you are buying.
| Factor | The DSCR HELOC | The purchase loan |
|---|---|---|
| Collateral | Your existing rental | The new property |
| Main test | Rent against a stress payment | New property’s rent against its own payment |
| Personal income | Not calculated | Property income is the focus, per program |
| Other loans’ payments | Confirm treatment on the file | Line payment is outside the coverage ratio |
| Valuation | Automated valuation or full appraisal | Set by the purchase program |
For the line, the minimum coverage is 1.10x. The qualifying payment is a fully amortizing principal-and-interest payment on the entire credit limit at the start rate plus 2 percentage points. That is a stress payment, built to be higher than what you will actually pay in the draw period. Taxes and insurance are not part of it.
Rent is the lesser of the appraisal’s market rent (Form 1007) 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 can have at most one vacant unit.
How the first-mortgage payment enters the calculation on a second lien is not something to assume. Confirm on the file how the lender treats it. The lender’s own coverage calculation governs, and any arithmetic you do beforehand is only illustrative.
The credit and history requirements are straightforward. Credit is 720 or better on a second lien and 700 or better on a first lien. Mortgage history shows no 30-day late in the last 12 months. At least 48 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. Borrowers are U.S. citizens, permanent residents, or non-permanent residents with a Social Security number.
On valuation, lines up to $400,000 use an automated valuation with a property inspection report, or a full interior appraisal. Larger lines take a full interior appraisal. Appraisal waivers are not accepted.
The purchase loan then compares the new property’s rent to that property’s principal, interest, taxes, insurance and any association dues. The line’s payment is not in that denominator. That is why the ratio on the new loan can look fine while your real cash flow is tighter than it looks. More on that below.
What Are the Steps, in Order?
The order matters because the line is opened on a rental you already own, and it is never closed together with the purchase. Here is the sequence:
1. Check the rental. Confirm it is an eligible type, it is a rental you own, and the seasoning clocks (next section) have run.
2. Check the first mortgage. Make sure its documents allow a second lien.
3. Size the line. Use the formula above, and keep the 80% closing draw in mind.
4. Apply and open the line. Valuation, title work and the rent test happen here.
5. Talk to the purchase lender before you draw. Ask how borrowed down-payment funds are treated.
6. Draw and park the cash. Move it to a dedicated account for a clean paper trail. Taxstra describes this sequence and suggests funding the title company directly from that account.
7. Go under contract and close the purchase. This is a separate loan, approved on its own.
8. Run the exit. Pay the line down, refinance the new property to repay it, or sell.
Seasoning: Two Six-Month Clocks
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).
That rule trips up investors who just completed a BRRRR refinance and want to tap the same property at once. Plan the calendar before you plan the purchase.
Can the Down Payment Be Borrowed?
Sometimes, but the purchase lender decides, and acceptance varies by program. Ask before you draw. A line funding most or all of a down payment means you are financing close to 100% of the new property. The rent then has to carry the new loan and the line payment together.
Get three answers from the purchase lender in writing before you draw:
- Do they accept borrowed funds for the down payment?
- Do borrowed funds count toward any reserve requirement?
- What documents trace the money from the line to the title company? Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Do not assume one lender’s answer applies to another. Across the wholesale network Lendmire works with, programs differ on this point, so the answer belongs to the specific purchase program you pick.
Where Does the Cash Flow Get Stressed?
A rental that clears the coverage test can still run thin on real cash. You are carrying three obligations: the first mortgage, the line, and the new purchase loan. Here is how that looks under pressure:
| Case | What happens |
|---|---|
| Normal | Rent from both properties covers all three |
| Vacancy | Income drops while all three payments stay due |
| Draw period ends | Line payment steps up as repayment begins |
| Variable rate moves up | Line payment rises on the drawn balance |
The line is interest-only for the first 5 years of the draw period, then repays over a 25-year fully amortizing period on a 30-year maturity. The CFPB explains that home equity line payments can change month to month because the rates are usually variable, and that payments in the repayment period are often significantly higher. Plan for that step-up long before it arrives.
Keep one more fact in view. The existing rental is collateral for the line, even though the money buys a different property. A weak new deal puts the old one at risk.
HELOC or DSCR Cash-Out Refinance?
Pick the line when you want to keep a cheap first mortgage. Pick the refinance when you want one fixed loan, or when the first mortgage is not worth protecting.
| Factor | DSCR HELOC (second lien) | DSCR cash-out refinance |
|---|---|---|
| First mortgage | Stays in place | Replaced |
| Rate type | Variable | A fixed option is common |
| Leverage ceiling | 70% CLTV on this program | Set by that program |
| Funds | Revolving; 80%+ drawn at closing | One lump sum |
| Best fit | Protecting a low-rate first loan | Resetting everything into one loan |
Choose the line if:
- Your first mortgage is much cheaper than current pricing.
- You need a defined slice of equity, not all of it.
- You are comfortable with a variable-rate payment.
Choose the refinance if:
- You want one payment and one lien.
- Your first mortgage rate is not low enough to matter.
- You need more cash than a 70% combined ceiling allows.
Lendmire’s DSCR cash-out refinance page covers that alternative in depth.
Where Does the General Rule Break?
Several edge cases change the answer.
- Lien confusion. A product that pays off your first loan is not the structure described here. Check lien position first.
- First-mortgage documents. The existing first mortgage has to permit a second lien. Read the documents.
- Vesting. An LLC can stay on title, depending on program guidelines. A title holder who is not a borrower signs a non-borrowing owner acknowledgment and the security instrument.
- Property type. Rural-designated property, row homes, condotels, leaseholds, land trusts, age-restricted communities, mixed-use property and a property listed for sale in the prior 2 months are outside this program. So is a property with a solar lien.
- Market flags. A declining-market flag lowers the leverage ceiling by 5 points.
- Borrower type. Foreign nationals and ITIN borrowers are not eligible.
- Exposure. The program allows at most 5 loans or $2,500,000 per borrower.
For a full list of what each product asks for, see Lendmire’s investment property HELOC requirements article.
How Do You Exit and Repeat?
You have three exits: pay the line down from cash flow, refinance the new property and repay the line from the proceeds, or sell. Taxstra describes the refinance-and-repay pattern as the same logic behind buy, rehab, rent, refinance, repeat.
Check any prepayment terms on the purchase loan before you count on a refinance exit. A refinance sooner than planned can cost more if a penalty applies.
Repeating the play adds leverage. Each round stacks another lien on your combined position, and the program’s loan-count and total-exposure limits cap how far you can take it. 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.
Do not use this strategy if you need a small amount of cash, you want a fixed payment, your reserves are thin, or the rental you would borrow against sits outside the eligible property list.
Frequently Asked Questions
Does the line payment count against the new rental’s coverage ratio?
No. The purchase loan compares the new property’s rent to that property’s own principal, interest, taxes, insurance and association dues. The line payment is not in that math. It still comes out of your real cash flow, so run both numbers before you commit.
Will the purchase lender accept borrowed cash as a down payment?
It depends on the program. Some accept it and some do not. Ask before you draw, and get the answer on source-of-funds documentation and reserves in writing. A fully borrowed down payment also means you are financing close to the full property price.
How long do I need to own the rental before I open a line?
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). A recent BRRRR refinance restarts the first clock.
Can the line go on a rental held in an LLC?
Yes, subject to program terms. The LLC stays on title, and its members sign as guarantors.
Can I draw only part of the line?
Not at closing. At least 80% of the line is drawn then, and the closing draw is never less than $50,000. Later draws are at least $5,000 each.
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 request a quote.
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. Experian
2. Taxstra – HELOC on investment property
3. CFPB
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Best DSCR HELOC Program to Borrow at the Highest Loan-to-Value on a Rental · Where to Get a DSCR HELOC With a High Combined Loan-to-Value on a Rental
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.