The Quick Read: A home equity line of credit (HELOC) supplies the down payment and closing cash for a rental purchase, but it does not buy the property; a separate acquisition loan, usually a DSCR loan, finances the rest, and the two are reviewed separately, so the rent has to carry both in practice. Lines on rentals through Lendmire’s wholesale network are limited to 70% combined loan-to-value (CLTV) and $500,000. A line on your primary home can reach higher leverage, but only for stronger credit profiles.
- A HELOC is a cash source. It is not a purchase loan.
- You cannot open a line against a property you have not bought yet. The collateral is a home or rental you already own.
- The line is judged on you: credit, debt-to-income, and equity. The DSCR loan is judged on the property’s rent.
- Clearing 1.00 on the DSCR loan does not mean positive cash flow, because the line payment comes out of the same rent.
- Ask the purchase lender whether borrowed money can fund the down payment before you draw a dollar.
What a HELOC Actually Does in a Purchase
A HELOC turns equity in one property into cash for the next one. You draw from the line, send the money to the title company, and the acquisition loan covers the rest of the price. Your existing first mortgage stays where it is.
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.
Most DSCR purchase files land at 75%-80% loan-to-value (LTV), meaning 20%-25% down. Select programs reach 85% LTV with roughly a 700+ score. That down payment is the cash problem a HELOC solves. A DSCR loan, for those new to it, qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Lendmire’s complete DSCR loans guide covers that side in full.
The line can serve three jobs. It can fund the down payment, cover closing costs and reserves, or pay for a rehab after you buy. Some investors even buy outright with the line, renovate, place a tenant, and refinance to repay it. That route works only if the refinance appraisal and rent cooperate.
How Underwriting Treats It, Step by Step
Two separate reviews happen on one purchase. Passing one does nothing for the other. Here is the sequence in order.
1. Equity test. Equity is value minus what is owed. Lenders add every lien on the property and divide by value to get CLTV. The line you can get is roughly value times the allowed CLTV, minus the existing balance.
2. Pick the collateral. You borrow against either your primary home or a rental you already own. Each path has its own leverage cap, as the next section shows.
3. Borrower review. The HELOC lender looks at your credit, debt-to-income (DTI), equity, and income. In this network DTI tops out at 50%, with a lower 45% limit for credit profiles from 600 to 679. The test uses the interest-only payment calculated on the maximum draw.
4. Valuation. Lines at or below $500,000 usually use an automated valuation instead of a full appraisal. A rental line can never exceed $500,000, so it nearly always sits in that lane.
5. Close the line, then draw. The draw goes to the title company for the down payment and closing costs. Keep the paper trail clean from the draw to the closing wire.
6. Close the purchase loan. A DSCR loan compares the property’s rent to its own payment (PITIA: principal, interest, taxes, insurance, and any association dues). It generally leaves the HELOC payment out of that ratio. A DTI-based loan would add the HELOC payment to your liabilities instead.
7. Exit. You pay the line down from cash flow, or you refinance the rental to repay it. That second path is the BRRRR sequence: buy, rehab, rent, refinance, repeat. If the refinance appraisal comes in short, the line stays outstanding.
Sequence matters. Open the line before you make offers. A new line adds a tradeline and a balance to your credit file, and the credit report used at closing can be no more than 90 days old.
Primary Home or Existing Rental?
The collateral decides the limits. Equity in your own home usually buys more leverage than equity in a rental. Here is how the network compares them.
| Factor | Line on primary home | Line on existing rental |
|---|---|---|
| Max CLTV | Up to 90%, only at 720+ credit | 70% |
| Max line size | $750,000 | $500,000 |
| Minimum credit | Varies by tier | 700 |
| Draw structure | 3-year or 5-year draw | 5-year draw only |
Two cautions apply. The 90% figure exists only for 720-or-better profiles, so do not plan around it at lower scores. A primary-residence line above $500,000 needs a full appraisal, a 700 credit profile or better (720 on the longer-runway structure, described below), and drops to a 75% CLTV cap.
Credit above 700 on a rental line buys eligibility, not more leverage. Both 700 and 720 reach 70% CLTV. And 700 is a hard floor with nothing beneath it.
The tradeoff is risk. A line on your home puts your home behind the rental. A line on a rental keeps the exposure on investment property, but it caps your cash at 70% of that rental’s value minus its mortgage.
The Network Numbers for an Investment Line
These are typical guidelines from select wholesale lenders. Every file is reviewed individually, and nothing here is a commitment to lend.
- Leverage: 70% CLTV on an investment property, up to $500,000. No tier sits above it.
- Line size: $25,000 to $750,000 overall, but investment lines stop at $500,000.
- Draw structure: Primary homes and second homes can use a 3-year interest-only draw followed by a 17-year repayment, or a 5-year draw followed by a 25-year repayment. Investment lines use the 5-year draw and 25-year repayment only. I call that the longer-runway structure.
- Drawn at closing: At least 75% of the line is drawn at closing. You are not opening a small, unused cushion.
- Pricing: It floats during both the draw and the repayment period and never converts to fixed.
- Title: The line sits in first or second lien position, held by you personally or by a revocable living trust.
- Exposure: A borrower can hold at most three lines. A borrower with more than 15 financed properties is not eligible.
- Property types: Single-family, 2-4 units, PUDs, townhomes, and condominiums, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural zoning are not offered.
- Derogatory credit: A bankruptcy needs 4 years of seasoning. Investment files follow a 7-year path for foreclosure and a 4-year path for a deed-in-lieu, pre-foreclosure, or short sale.
- Availability: HELOCs run through Lendmire’s 16 full-service states. That is narrower than its DSCR footprint of 41 markets, including Washington, D.C.
Read the draw structure carefully. The CFPB explains that a HELOC usually has a variable rate, a draw period (the time you can borrow, often around 10 years), and then a repayment period when borrowing stops. It adds that some lines let you convert part of the balance to a fixed rate. Lines in this network do not.
A Worked Walk-Through
Run the numbers on a modeled file. These inputs are assumptions, not market data.
Say you want a duplex and plan to put 25% down, which is a 75% LTV purchase. Your home’s first mortgage sits at 60% of its value. You have a 720+ credit profile, so the network’s primary-residence ceiling of 90% CLTV applies. That leaves up to 30% of the home’s value in line capacity, before the line-size cap and the lender’s review. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
The line covers your 25% down payment and closing costs. The DSCR loan covers the other 75%. Say the duplex’s rent clears the DSCR test at about 1.2x, which sits above the 1.00 level where select programs start. Many investors would call that a healthy file. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Now look at the cash picture. That 1.2x cushion above the property’s PITIA now has to pay the HELOC interest too. It must also cover repairs, vacancy, management, and utilities. The ratio ignores all of those. The line is mostly drawn at closing, so the interest-only payment is real from the first month.
Compare that with the same duplex bought with savings. Coverage is identical at 1.2x, but nothing else draws on the rent. The HELOC changes the cash flow, not the DSCR.
Then plan for the step-up. When the interest-only draw period ends, the payment changes to include principal. The CFPB’s HELOC booklet describes this shift from a borrowing period to a repayment period. Expect a meaningful increase, and test whether the rent can still carry it.
Where the Rule Breaks
The general rule is simple: line first, purchase loan second, rent covers both. These edge cases are where files bend.
LLC-held rentals. Investment HELOCs cannot be vested in an LLC, corporation, partnership, or irrevocable, blind, or land trust. A rental already deeded to an LLC needs a vesting change or a DSCR cash-out refinance instead. DSCR loans can usually be held in an LLC, subject to program eligibility.
Borrowed down payments. Whether HELOC money can fund the down payment, closing costs, or reserves depends on the acquisition program. Some programs allow it and others do not. Because the DSCR network includes many lenders, this is one of the most common questions to settle before you draw.
Near-100% financing. A line at 70% CLTV on a rental, or higher on your home, paired with a purchase at 75%-80% LTV, can leave you financing almost the whole deal. Reserves still apply. They commonly run around 6 months of PITIA and rise to roughly 9 months on larger loans. Borrowed funds may not count toward them.
Prepayment penalties. A prepayment penalty is a fee for paying a loan off early. A DSCR loan that carries one makes an early refinance more costly. That matters if your plan is to refinance quickly to repay the line. Plan the exit before you pick the structure.
Balloon structures. Experian notes that some HELOCs end the draw period with the whole balance and interest due at once. Lines in this network repay on a fully amortizing schedule instead. Read the terms of any line you are offered, because not all lenders work this way.
Frozen lines. A line you have not drawn can be reduced or frozen. The network’s 75%-drawn-at-closing rule limits this on its own lines, but a bank line you keep open for later is not committed money.
Shaky or thin coverage. A purchase loan at 1.00 coverage works for select programs. Select lenders in the network also go below 1.00, with leverage and terms adjusted. Neither gives you room to also pay a line. Thin coverage plus a HELOC is where investors get hurt.
Tax. 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.
How a HELOC Compares With Other Funding Routes
A HELOC is one of several ways to raise cash for a purchase. Match the tool to the job.
| Route | Best use | Repayment shape | Main risk |
|---|---|---|---|
| HELOC | Down payment cash | Interest-only draw, then amortizing | Variable payment |
| Cash-out refinance | Large equity pull | Fixed schedule, one loan | Resets your first mortgage |
| DSCR purchase loan | Financing the property | Fixed term, rent-based | Needs down payment cash |
| Hard money | Short bridge deals | Short term, balloon | High cost, tight exit |
A cash-out refinance replaces your first mortgage with a larger one, so it makes sense when your first mortgage is not a good one to keep. A HELOC leaves the first mortgage untouched. For the cash-out side, see Lendmire’s guide to a DSCR cash-out refinance on a rental you already own.
Is It a Good Fit for You?
A line tends to fit when:
- Your equity is solid and your credit profile clears the 700 floor for a rental line, or you hold a strong primary-home profile.
- The purchase lender has confirmed it accepts borrowed down-payment funds.
- The property’s rent clears the coverage test with room to spare after the line’s interest.
- You have a cash buffer beyond the stated reserves.
A line tends to be a poor fit when:
- Coverage sits right at 1.00 and nothing is left for vacancy or repairs.
- Your plan depends on a refinance that needs a specific appraisal to work.
- The home behind the line is your only real asset.
- Your rental sits in an LLC and you have not planned the title change.
A HELOC is debt, not an asset, and a lender will not treat it as a reserve. Investors sometimes forget that the collateral is their own property, so a bad rental outcome can reach it.
Key Terms Defined
HELOC: A revolving line of credit secured by a property you own, with a draw period followed by a repayment period.
CLTV (combined loan-to-value): All the loans against a property added together and divided by its value.
DTI (debt-to-income): Your monthly debt payments divided by your monthly income.
DSCR (debt service coverage ratio): The property’s monthly rent divided by its monthly payment, which shows how well the rent covers the debt.
PITIA: The monthly principal, interest, taxes, insurance, and any association dues on the property.
Draw period: The stretch when you can borrow from the line, usually with interest-only payments.
Seasoning: The waiting period a lender requires after an event, such as a bankruptcy or a purchase, before it will lend.
Frequently Asked Questions
Can a HELOC cover the whole purchase price?
Rarely. In this network an investment line caps at $500,000 and 70% CLTV, and a primary-home line has its own leverage limits. Some investors buy outright with a line and refinance later. That plan depends on the property’s value and rent holding up when you refinance.
Does a HELOC hurt my chances on the purchase loan?
It can help or hurt, depending on the purchase program. A DSCR loan judges the property’s rent against its own payment and generally leaves the HELOC payment out of that ratio. A DTI-based loan adds it to your debts. Open the line before you make offers, since it adds a tradeline and balance.
Can I use a HELOC on a rental I already own?
Yes, if you hold the rental personally or in a revocable living trust and you meet the 700 credit floor. The line is limited to 70% CLTV and $500,000. A rental held in an LLC cannot carry this line, so it needs a title change or a DSCR cash-out refinance.
What happens when the draw period ends?
Borrowing stops and the repayment period begins. On a rental line that means a 25-year schedule that includes principal, so the payment rises meaningfully. Pricing floats throughout and never converts to fixed. Test your cash flow at the higher payment before you borrow.
Should I use a HELOC or a cash-out refinance?
It depends on your first mortgage. A HELOC leaves it untouched, which helps if the mortgage is a good one to keep. A cash-out refinance on a rental tops out around 75% LTV across most of the network, and about 6 months of seasoning is the common expectation. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
Comparing Your Options
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. Reach the team at 828-256-2183. The best deals clear two tests: enough equity to fund the cash, and enough rent to carry every payment you stack on top.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. CFPB – What is a home equity line of credit (HELOC)?
2. CFPB – What You Should Know About Home Equity Lines of Credit
3. Experian – What Is a Draw Period on a HELOC?
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 to Buy Investment Property With a HELOC as the Down Payment · Investment Property HELOCs for Investors Whose Bank Said No · Investment Property HELOCs for Landlords Who Just Bought the 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
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.