The Quick Read: You borrow against equity in one property and use the cash as the down payment and closing costs on the next one, and that takes two separate approvals: the line is approved on you and the property securing it, and the purchase loan is approved on the new property’s rental coverage. The strategy works when both approvals clear and you have a repayment plan. It fails when the line’s payment quietly eats the rent.
- Two approvals, two tests. The line looks at your credit, debts, and equity. A DSCR purchase loan looks at the new property’s rent against its own payment.
- Collateral matters most. On our network, a line on an investment property tops out at 70% CLTV and $500,000. A line on a primary residence can reach 90% CLTV, but only with a 720-or-better credit profile.
- A DSCR above 1.00 is not positive cash flow. The coverage ratio leaves out your line’s payment, plus repairs, vacancy, and management.
- Ask before you draw. Purchase programs differ on whether borrowed down-payment money is accepted and whether it has to sit in your account first.
- Plan the exit first. The common paths are paying the line down from cash flow or savings, or refinancing the new property once it has equity.
How Does a HELOC Fund a Rental Down Payment?
A home equity line of credit (HELOC) is a revolving credit line secured by property you already own. You draw cash, wire it toward the down payment, and a separate purchase loan pays the seller. The line never buys the property. It only supplies the cash you would otherwise have to save.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
The equity formula is simple. Take the property’s value, multiply by the maximum combined loan-to-value (CLTV, meaning all loans on the property as a share of its value), and subtract what you still owe. What is left is the most the line can be. Lenders also weigh income, debts, and credit before they offer any of it.
Two features make this different from a normal loan. First, the line is typically a second mortgage, so the home or rental behind it is at risk if payments stop. Second, the line is approved on you as a borrower, not on the rent of the property you plan to buy. Some investors assume rental income helps them qualify for the line. It generally does not.
Picture an investor with a paid-down home and a target rental. The line covers the down payment and closing costs, and the purchase loan covers the rest. That investor is now carrying two payments on one new asset. Every other section below follows from that fact.
Which Property Should Secure the Line?
Your primary residence is the more common collateral, and more lenders offer it. A line on a rental you already own is possible, but NerdWallet notes that fewer lenders offer it and that borrowing power is smaller than against a primary home.
Market-wide, NerdWallet reports that investment-property lines often want a 720 score and cap at 80% LTV, with many lenders sitting below 70%. Our network is tighter and simpler. An investment-property line caps at 70% CLTV with a 700 minimum credit score, and nothing sits above that.
| Factor | Line on your primary home | Line on a rental you own |
|---|---|---|
| Max CLTV | 90% (720+ credit only) | 70% |
| Credit floor | 600 program floor | 700 |
| Line size | $25,000 to $750,000 | $25,000 to $500,000 |
| Draw structure | Two options | 5-year draw, 25-year repayment |
| Title held by | Individual or revocable trust | Individual or revocable trust |
A few notes on that table. Credit above 700 on an investment line buys eligibility, not extra leverage, because 720 and 700 both reach the same 70% ceiling. Lines above $500,000 exist on primary residences only and require a full appraisal. Primary-home lines come in two draw structures, a 3-year draw with 17-year repayment and a 5-year draw with 25-year repayment.
Availability is narrower than the DSCR footprint. Lendmire arranges HELOCs through select wholesale partners in its 16 full-service states, while its DSCR investor loans reach 41 markets, including Washington, D.C. Every figure is subject to lender guidelines and full file review.
How Underwriting Treats the Line, Step by Step
Underwriting a HELOC follows a predictable order. Knowing it helps you size the line before you apply.
1. Value. On lines up to $500,000, valuation is ordinarily automated, with no traditional appraisal. An investment line can never exceed $500,000, so it nearly always runs this way. A higher CLTV may call for a second valuation, and you can request a full appraisal at any time.
2. Equity math. The lender applies the CLTV ceiling to the value and subtracts existing liens. The CFPB’s HELOC booklet walks through this same formula and notes that the lender also reviews your income, debts, and credit history.
3. Debt-to-income. The maximum is 50%, and it drops to 45% for credit profiles from 600 to 679. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you plan to borrow.
4. Credit and history. The 600 program floor applies to primary homes. Investment lines floor at 700. A bankruptcy needs 4 years of seasoning from discharge or dismissal. On investment files, a foreclosure needs 7 years, and a deed-in-lieu, pre-foreclosure, or short sale needs 4.
5. Structure. You get a standalone line in first or second lien position. At least 75% of the line is drawn at closing. Pricing floats through both the draw and repayment periods and does not convert to fixed.
Item five deserves attention because it changes the strategy. You cannot open a large line “just in case” and leave it untouched. Most of it is drawn at the start, so you should size the line close to what you need. The minimum line is $25,000. Pricing and available terms vary by lender, borrower profile, property type, and full underwriting review.
On variable payments, the CFPB explains that HELOC payments can change month to month and that a lender may freeze further draws if your finances change. The same page mentions that some HELOCs let you convert part of the balance to a fixed payment. That option is a general market feature. On our network, pricing stays floating, so build the plan around that.
What Does the Purchase Lender See?
The purchase lender sees a deposit, and it will ask where it came from. Programs differ on whether borrowed down-payment money is accepted at all, and some want it to sit in your account before closing. Ask your purchase lender both questions before you draw a dollar.
Our wholesale network shows a pattern here. Select DSCR lenders will accept an HELOC-funded down payment, but the documentation standard varies from file to file. Others want the funds to season, or want the down payment to come from your own balances. An investor who draws first and asks later can end up holding a line they cannot use.
Next comes the DSCR test itself. DSCR, or debt service coverage ratio, divides a property’s monthly rent by its monthly PITIA, meaning principal, interest, taxes, insurance, and association dues. Personal income is generally not the test, and the file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. For the full mechanics, see Lendmire’s complete DSCR loans guide.
Typical purchase parameters across the network look like this:
- Most purchase files land at 75% to 80% LTV, which means 20% to 25% down.
- Select programs reach 85% LTV with a score of roughly 700 or better.
- Credit floors vary by scenario in parts of the network; most programs want about 660, and 700-plus unlocks the strongest leverage.
- A coverage ratio of 1.00 is where many select programs start. A separate select-lender path goes below 1.00, with leverage and terms adjusted.
- Reserves commonly run around 6 months of PITIA, though they vary by lender, leverage, and loan size.
A bigger down payment lowers the new loan’s payment and can lift the ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity behind the line and enough rental coverage on the purchase.
The Worked Example (Where the Strategy Gets Tested)
Say a purchase clears a DSCR of 1.20x. Assume you put 20% down, so the purchase loan sits at 80% LTV, and the HELOC covers that 20% plus closing costs. Between the two loans, you are financing nearly the whole deal. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
The coverage ratio does not see the line’s payment. To test the real picture, add that payment back in. The inputs below are modeled assumptions, not market data.
| Scenario | Modeled assumption | Coverage after both payments |
|---|---|---|
| DSCR as underwritten | Purchase loan only | About 1.20x |
| Add the HELOC payment | Line adds 10% to the monthly obligation | About 1.09x |
| Line payment rises | Line adds 20% to the monthly obligation | About 1.00x |
The last row is the stress test. If floating pricing pushes the line’s payment up and rent stays flat, a comfortable 1.20x deal shrinks to break-even on paper. That is before repairs, vacancy, management, utilities, and capital expenses, none of which appear in the DSCR calculation.
So 1.00 is not positive cash flow. It means rent covers PITIA on that property and nothing else. Pass the DSCR test on the purchase, then run a second, harsher test with the line’s payment included.
Bankrate notes that HELOC payments rise when rates rise, and that the home is collateral. That makes the primary-residence version a real risk decision. The honest question is whether you can carry both loans through a vacancy and a rate move without touching the house.
How Do You Pay the Line Back?
The line’s draw period is interest-only. On our network’s investment structure, that is 5 years, followed by 25 years of fully amortizing repayment. A payment that looks light during the draw jumps when repayment starts, so map that date on your calendar at the start.
Three exits are common:
- Pay it down from cash flow or savings. This is the cleanest path, and it works best when the property carries both loans with room to spare.
- Refinance the new property. A DSCR cash-out refinance on a standard rental tops out around 75% LTV across most of the network, with about 6 months of seasoning as the common expectation. The proceeds repay the line.
- Let it ride. Some investors keep the line in place for the long haul. This only suits someone whose coverage stays strong with the line’s payment included. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
Watch the refinance exit closely. Many DSCR loans carry a prepayment penalty, a fee for paying the loan off early, and these often step down over the first several years. A refinance soon after purchase can trigger that cost, so ask about it before you rely on a quick exit. The exact structure varies by program.
Lendmire’s piece Rental HELOC vs DSCR Cash-Out for Raising the Next Down Payment covers that exit decision in more detail.
Where the General Rule Breaks
The strategy above assumes a standard setup. These edge cases change the answer.
LLC-held rentals. Our HELOC programs require title held by an individual or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A rental already deeded to an LLC needs a vesting change first, or a DSCR cash-out refinance instead, which can often work for LLC-titled properties subject to lender program eligibility.
Owner-occupied multiunit. A duplex where you live in one unit is typically treated as owner-occupied. Rent every unit and it becomes an investment property. That switch moves the CLTV ceiling from as high as 90% down to 70%, so the occupancy label matters.
Property types. Eligible collateral includes single-family homes, 2-4 units, PUDs, townhomes, and condos, including non-warrantable ones. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural property are not offered.
Exposure caps. A borrower is limited to three lines, and a borrower with more than 15 financed properties is not eligible. Serious portfolio investors can hit that second limit before they hit any equity limit.
Draw freezes. A lender may freeze or reduce a line if values fall or your finances worsen. A freeze before your purchase closes could strand the deal, so draw before you go under contract on a tight timeline, not during.
Borrowed funds on the DSCR side. Whether a purchase program accepts borrowed down-payment money is a program-by-program rule. Confirm it in writing before relying on the line.
Should You Use This Strategy?
It fits an investor with strong personal credit, meaningful equity, a modest and short-term capital need, and a purchase that still covers its payments with the line included. It also fits someone who has already chosen the exit.
Skip it, or look at alternatives, in these situations:
- The new deal only works at the thinnest coverage.
- A freeze or a rate move would force you to sell.
- The equity sits in an LLC-titled property.
- You want a fixed payment.
- You need a larger lump sum than a line can supply.
| Option | Best for | Main tradeoff |
|---|---|---|
| HELOC on primary home | Modest, short-term down payment | Home is at risk; floating payment |
| HELOC on a rental | Tapping an existing rental’s equity | 70% CLTV, $500,000 cap |
| DSCR cash-out refinance | Larger sums, LLC titles, fixed-term options | Refinances the whole loan; seasoning applies |
| Saving longer | No added debt | Slower pace of acquisition |
Lendmire’s piece How to Get a Rental HELOC to Fund Your Next Down Payment covers the application side of this decision.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Key Terms Defined
HELOC: A revolving credit line secured by property you own, which you draw on and repay over time.
CLTV: Combined loan-to-value, meaning all loans on a property added together as a share of its value.
DSCR: Debt service coverage ratio, which compares a property’s monthly rent with its monthly PITIA.
PITIA: Principal, interest, taxes, insurance, and association dues, the full monthly housing payment on a property.
Draw period: The early years of a line when you can borrow and typically pay interest only.
Seasoning: The waiting period a lender wants before a refinance, or before borrowed funds count as yours.
Prepayment penalty: A fee for paying off a loan before a set date.
Frequently Asked Questions
Can I use a HELOC on my home to buy a rental?
Yes, if the purchase lender accepts borrowed down-payment funds. The line is approved on you, and the purchase is approved on the property’s rental coverage. Your home becomes collateral for the investment, so the real question is whether you can carry both payments without touching the house.
Does the HELOC payment count in my DSCR?
No. The ratio compares the new property’s rent with that property’s own PITIA. The line’s payment still lowers your real cash flow, so run a second test that includes it.
Can I take a HELOC on a rental held in an LLC?
Not through our programs. Title must be held by an individual or a revocable living trust. A rental already in an LLC would need a vesting change, or a DSCR cash-out refinance might fit instead.
How much can I borrow against an investment property?
On our network, an investment line caps at 70% CLTV and $500,000, with a 700 minimum credit score. Credit at 720 reaches the same 70% ceiling, so the extra score buys eligibility rather than leverage.
Should I open the line before I find a property?
Only with care. At least 75% of the line is drawn at closing, so an early line starts accruing payments right away. Size it to the need and time it close to your purchase.
Next Step
If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Lendmire is a mortgage broker that arranges financing through select lenders in its wholesale network. You can reach the team at 828-256-2183.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) arranging home equity lines of credit — primary-residence, second-home and investment-property lines — through a wholesale lending network in its 16 full-service states. 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
1. NerdWallet: Can you get a HELOC on an investment property?
3. CFPB: What is a home equity line of credit?
4. Bankrate: Pros and cons of home equity lines
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How the FAFSA Counts a HELOC on a Rental Property · Duplex Cash-Out Refinance Requirements for a Rental Down Payment · Cashout Refinance Rental Property
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.