The Quick Read: The right program depends on which property secures the line, because the equity limit changes with occupancy and credit score. A HELOC does not buy the house. It produces the down payment and closing cash, and a separate purchase loan finances the rest. The strongest files clear two tests: enough equity for the line, and enough rental coverage for the new loan.
- On a primary residence, the network’s ceiling is 90% combined loan-to-value (CLTV), and only at a 720 credit profile. Lower scores step down.
- On an investment property, the ceiling is 70% CLTV, with a 700 minimum score and a $500,000 maximum line.
- A line often has to have at least 75% drawn at closing. Plan for interest on cash you may not need yet.
- The new rental carries its own loan, and the line payment comes from your pocket, not from the rent.
- Lines through Lendmire are available only in 16 states, which is narrower than its DSCR footprint.
What Does “Best” Mean for a HELOC Used to Buy a House?
The best program for your situation is the one that fits your collateral, your credit score, your timing, and the purchase lender you plan to use. No single HELOC wins for everyone. A borrower with a paid-down primary home and a 740 score needs something very different from a landlord whose only equity sits in a rental.
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.
Lendmire is a mortgage broker, not a lender. It places lines through select wholesale lenders, each with its own guidelines. That matters because their rules differ. A broker can match the file to the program that fits, instead of forcing the file into one lender’s box.
Here is the checklist a broker runs before recommending any line:
- Collateral: Is the line secured by a primary home, a second home, or a rental? Each has different ceilings.
- Title: Is the property held by you or a revocable trust? An LLC cannot hold title on these lines.
- Credit tier: Your score sets the maximum CLTV and the maximum line size.
- Draw structure: How long is the interest-only period, and what happens afterward?
- Valuation: Will the line use an automated valuation or a full appraisal?
- Purchase-loan fit: Will the acquisition lender accept the line as a source of funds?
That last item is the one most borrowers skip. Sort it out before you draw a dollar.
Key Terms Defined
HELOC: A home equity line of credit, a revolving credit line secured by property you already own.
CLTV (combined loan-to-value): All loans against a property, including the new line, divided by its value.
Draw period: The stretch when you can borrow from the line, usually with interest-only payments.
Repayment period: The stretch after the draw ends, when you pay down principal and interest.
DSCR (debt service coverage ratio): Monthly rent divided by the property’s full monthly housing payment, including principal, interest, taxes, insurance, and any HOA dues.
Seasoning: The waiting period a lender wants before it treats certain funds or events as settled.
Business-purpose loan: A loan made to buy or hold a property as an investment, not as your home.
How the Strategy Works, Step by Step
The sequence matters more than any single feature. Here is how the pieces fit together.
1. Measure your equity. Equity is value minus every loan against the property. The line must fit under your tier’s CLTV cap after you add it to the existing mortgage.
2. Pick the collateral. The line can sit on a primary home, a second home, or a rental you own personally. Primary homes have the most room.
3. Open the line before you need it. Draws should be on your statements well before you write an offer, so the paper trail is clean.
4. Draw and park the cash. The funds go into your own account. The purchase lender will trace the down payment back to that draw.
5. Qualify for the purchase loan. A conventional lender adds the line payment to your debt-to-income ratio. A DSCR lender tests the new property’s rent against its own payment.
6. Plan the exit. Many investors use the line as a short-term bridge. They pay it down with savings, a sale, or a cash-out refinance once the new property is stable.
The CFPB describes a HELOC as an open-end line you can borrow against repeatedly, up to a limit. It uses a 10-year draw period as an example. Payments after the draw ends are often significantly higher.
How Much Can You Borrow? Ceilings by Property Type
The ceiling depends on what secures the line, and these ceilings only apply to the right occupancy. Do not carry a primary-residence number over to a rental.
| Collateral | Min. Score | Top CLTV (with score) | Max line |
|---|---|---|---|
| Primary residence | 600 | 90% at 720+ | $500,000 at 90% CLTV; $750,000 at 75% CLTV, 700+ (720 on the longer-runway program) |
| Second home | 640 | 90% at 720+ | $500,000 |
| Investment property | 700 | 70% (700+) | $500,000 |
On a primary residence, the ceiling steps down with credit. A 700 profile reaches 85% CLTV up to $500,000. A 640 profile reaches 80%. A 620 profile reaches 70% up to $400,000. At the 600 floor, the cap is 60% up to $400,000. Treat these as ranges, subject to lender guidelines and full file review.
A line above $500,000 is primary-residence only. It needs a 700 score or better (720 on the longer-runway structure, the one with a 5-year draw and 25-year repayment). It also caps at 75% CLTV and requires a full appraisal.
Here is a simple picture in percentages. Say your primary home carries a first mortgage at 55% of its value, and your score supports an 85% CLTV tier. That leaves roughly 30 points of value available. The dollar line cap may bind before the percentage does, so check both.
Some market surveys report that banks commonly cap investment-property equity lines near 80% CLTV, per Landlord Studio’s market summary. That is a broad-market statistic. On Lendmire’s network, an investment-property line tops out at 70% CLTV.
How the Line Itself Is Structured
Most lines here are standalone and sit in first or second lien position. Two draw structures exist on primary homes and second homes. One has a 3-year interest-only draw and a 17-year repayment. The other has a 5-year draw and a 25-year repayment. Investment lines use the 5-year draw and 25-year repayment only.
Market-wide, Experian reports that draw periods typically run five to 10 years, with repayment commonly 20 years. The network structures above are the ones that apply to your file.
Three structural points catch buyers off guard:
- Most of the line is drawn at closing. At least 75% of the line must be drawn when you close. If you only need part of it for a down payment, a smaller line may fit better.
- Pricing floats. The cost changes during both the draw and the repayment period, and never converts to fixed.
- Payments jump. Interest-only payments end when the draw does. The CFPB’s HELOC brochure notes that some plans allow interest-only payments during the draw, and that payments can change even if you do not borrow more.
Lenders review your file on the interest-only payment calculated on the maximum draw. Maximum DTI is 50%, and 45% for scores from 600 to 679. A DTI above 45% requires a 680 minimum.
For lines up to $500,000, lenders ordinarily run an automated valuation instead of a traditional appraisal. A higher CLTV may require a second valuation, and you can always request a full appraisal. Every line above $500,000 gets one.
How the Purchase Lender Treats the Cash
Your line only works if the purchase lender accepts it. Lenders handle this in different ways, so ask first.
On a conventional purchase, the line’s minimum payment goes into your debt-to-income ratio. Some banks go further and refuse borrowed money as a down payment, which is a problem investors have run into when they relied on a HELOC without asking first.
On a DSCR loan, the picture is different. DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Your wages are not the main test.
Here is what that looks like across the wholesale network:
- Leverage: Most purchases land at 75% to 80% LTV, which means 20% to 25% down. Select programs reach 85% LTV with a score around 700 or higher.
- Coverage: A 1.00 ratio is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Stronger ratios open better terms.
- Credit: A 620 floor exists in parts of the network. Most programs want around 660, and 700 and up unlocks the strongest tiers.
- Reserves: These vary by lender, leverage, and loan size. Around six months of the full housing payment is common. Many acquisition lenders accept documented borrowed funds for the down payment and closing costs, but generally exclude them from reserves.
Keep this in mind. A DSCR test looks at rent against the new property’s payment only. Your line payment does not appear in it. That means a rental that clears the coverage test can still strain your own budget once the HELOC bill arrives. The complete DSCR loans guide walks through how that ratio is built.
Where the General Rule Breaks
Most of the guidance above holds. These edge cases are where it does not.
LLC-held rentals. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title on these lines. A rental already deeded to an LLC needs a vesting change, or a DSCR cash-out refinance instead. Lendmire’s piece Best Investment Property HELOC Program to Cover the Purchase of Another Property goes deeper on that path.
Someone else’s line. You generally cannot use another person’s HELOC as your own down payment. The borrower on the line has to be the buyer.
Property types. Single-family, 2-4 unit, PUD, townhome, and condominium properties, including non-warrantable condos, are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not. Barndominiums are likewise outside these programs.
Credit history. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure history splits by program on primary homes and second homes. One program accepts a foreclosure after 7 years and a short sale after 4, while the other declines the history entirely. Investment files follow the 7-and-4-year path.
Portfolio size. A borrower can hold only three lines, and anyone with more than 15 financed properties is not eligible.
State overlays. A few states add their own rules. Tennessee shortens both draw structures. A Texas primary residence is a homestead and caps at 80% CLTV, with extra waiting rules. Texas second homes and investment properties follow the standard tables.
Early refinance penalties. If the new rental carries a DSCR loan with a prepayment penalty, refinancing it soon to pay off your line can cost you. Check the penalty schedule before you make the exit plan.
The Three-Payment Stress Test
Once you close, you carry three obligations: the first mortgage, the line, and the new rental loan. The first mortgage is steady. The new rental loan is covered by rent, at least on paper. The line is the one that moves.
Run three checks before you commit:
1. Rent coverage. Does the new rental clear its own coverage ratio with some cushion? A rental sitting at a thin 1.00 has no room for vacancy.
2. Line payment on top. Add the line payment to your budget with the rent coverage in mind. A rental near 1.20x coverage can feel much weaker once the line bill sits beside it.
3. Draw-end shock. What does your budget look like when interest-only payments end and principal begins?
Clearing 1.00 on a DSCR test is not the same as positive cash flow. Repairs, vacancy, management, utilities, and capital expenses all sit outside the calculation.
Another risk is simple. If the line funds the entire down payment, you have no cash equity in the new property. The line is secured by the home you already own, so a bad outcome on the rental still reaches that home. Experienced investors tend to size the line smaller than the maximum and pay it down early.
Which Setup Fits You?
| Your situation | Likely route | Watch for |
|---|---|---|
| Paid-down primary home, 720+ | Line on primary | Line size and draw-end |
| Only equity is in a rental | Investment line | 70% cap, 700 score |
| Rental is held in an LLC | DSCR cash-out | Vesting and seasoning |
| Score below 700 | Primary or second home | Lower CLTV tiers |
Lendmire’s piece Best DSCR HELOC Program for Using Rental Equity to Buy Another Rental covers the case where the equity sits in a rental you already own.
A line is not always the right tool. If you plan to hold the new rental long term and the existing first mortgage is the main obstacle, a cash-out refinance on the existing property may fit better. It resets the first mortgage and raises the payment the rent must cover, but it avoids a floating line. Which tradeoff wins depends on the borrower’s situation.
What to Prepare Before You Apply
A clean file moves through review more smoothly. Gather these before you ask for a quote:
- Your current mortgage statement and a recent property tax and insurance record. Confirm the specific amounts with your county tax office and your insurance agent.
- A credit report that will be no more than 90 days old at closing. The score model is single-bureau, keyed to the primary wage earner.
- Proof of title: you or a revocable trust, not an LLC.
- Your plan for the purchase loan, including the target property type and expected rent.
- A written exit plan showing how the line gets paid down.
Short-term rental rules can vary by city, county, HOA, and property type, so confirm local rules before relying on projected rental income.
Next Steps
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. The brokerage shops multiple wholesale lenders and matches your scenario to the program that fits. It also arranges DSCR financing across 41 markets, including Washington, D.C., so the purchase loan and the line can be planned together. Programs vary by lender, and every figure is subject to lender guidelines and full file review. This is not a commitment to lend.
Frequently Asked Questions
Can a HELOC pay for the whole house?
Technically a line can fund a purchase, but the maximum line is $750,000 on a primary residence and $500,000 on a second home or rental. Most investors use it for the down payment and closing costs, then finance the rest with a separate loan. Funding the entire price leaves you with no equity in the new property.
Does a HELOC count as a down payment on a DSCR loan?
It often can, with documentation. Many acquisition lenders accept documented borrowed funds for the down payment and closing costs, but generally do not count them toward reserves.
Can I take a HELOC on a rental I already own?
Yes, if you hold title personally or in a revocable trust. The line needs a 700 score, caps at 70% CLTV, and tops out at $500,000. LLC-held rentals do not qualify.
What score do I need?
The floor is 600 on a primary residence, 640 on a second home, and 700 on an investment property. The top CLTV tiers need much more. The 90% ceiling requires 720 or better, and it applies only to primary homes and second homes.
Is the HELOC payment included in the DSCR calculation?
No. The DSCR test compares the new property’s rent to its own housing payment. Your line payment is a separate obligation you pay from other income. Keep that in mind when you judge how much cushion the deal really has.
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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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
2. Landlord Studio – HELOC for investment property
4. CFPB – HELOC consumer brochure
5. BiggerPockets – Using a HELOC to buy an investment property
This article is part of Lendmire’s HELOC & home equity loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Best HELOC Program to Buy a Second Home · Best Investment Property HELOC Program to Purchase Investment Property in Cash · Best HELOC Program When Subordinating Behind an Existing First Mortgage
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.