Best HELOC Program to Fund a House Flip

The Quick Read: The best program for a flip depends on which property secures the line, because a HELOC is a source of cash and not a loan on the flip itself. The right fit comes from matching the equity you hold, your credit profile, and the length of the draw period to your rehab and sale timeline.

• The line is secured by a property you already own, not by the flip.
• Lines on a primary residence reach much higher leverage than lines on a rental.
• An investment-property line on Lendmire’s wholesale network caps at 70% CLTV and $500,000.
• Draw structure matters more than any headline feature, because the flip has to sell inside the interest-only window.
• A HELOC is bridge capital. The permanent exit is usually a sale, or a DSCR loan if the property becomes a rental.

Investors searching for the best HELOC program to fund a house flip are usually asking two questions at once. Which line should I open, and how do I keep from putting my own home at risk? This explainer walks through the mechanics, how lenders look at the file, the structures that exist, and where the usual rules break down. Lendmire is a mortgage broker, not a lender. It shops select wholesale partners and matches the scenario to the program. HELOC lending runs through the brokerage’s 16 full-service states, which is narrower than its DSCR investor footprint of 41 markets, including Washington, D.C.

What Does a HELOC Actually Do in a Flip?

A HELOC is a revolving line of credit secured by equity in a property you already own. You draw what you need, pay interest on the drawn balance, and can reuse the line as you repay. As Finder explains, a line on an investment property works the same way as one on a primary home.

The flip property is not the collateral. That is why a distressed house that no bank would lend on can still be funded this way. The lender looks at the property that secures the line and at you, the borrower.

Here is the typical loop:

1. Open the line against a primary residence, second home, or seasoned rental.

2. Draw funds for the down payment, the purchase, or the rehab.

3. Renovate and list the flip.

4. Sell, repay the drawn balance from the proceeds, and keep the line available for the next project.

Many investors pair the line with hard money. The HELOC covers the down payment, and a short-term lender covers the rest of the purchase and the renovation. That hybrid works, but it stacks two debt payments on one project.

Is There a “Best” HELOC Program for Flippers?

No single program wins for everyone. The best program for your situation is the one whose collateral rules, draw structure, and leverage limits fit your deal and your balance sheet. Across the wholesale network, the differences that matter fall into a handful of categories.

Most consumer-facing pages treat the HELOC as one product. In practice, the same borrower can see very different outcomes depending on which property is pledged. That one choice drives the leverage, the credit floor, the line size, and your personal risk.

The evaluation criteria that matter

How Do These Lines Get Underwritten, Step by Step?

Underwriting a HELOC is about you and the collateral, not about the flip. Lenders review credit, combined loan-to-value, debt-to-income, and the property itself, subject to lender guidelines and full file review.

Step 1: Choose the collateral. Yahoo Finance reports that investment-property HELOCs are less common and harder to get than primary-residence lines. Many lenders offer them only on a primary home. Through a broker that shops several wholesale partners, an investment-property option can still be found, but it is tighter.

Step 2: Credit review. The program floor across the network is a 600 credit score. The floor rises with the occupancy of the collateral: second homes start at 640, and investment properties start at 700. The score is pulled from a single bureau keyed to the primary wage earner, and the report can be no more than 90 days old at closing.

Step 3: Combined leverage. The ceiling depends on the occupancy tier. On an investment property, the ceiling is 70% CLTV at a 700 or higher credit profile, with a maximum line of $500,000. On a second home, the ceiling reaches 90% CLTV, but only with a 720 or better profile. On a primary residence, 90% CLTV is available only at 720 or better and up to $500,000. Lower scores step the ceiling down.

Step 4: Debt-to-income. The maximum is 50%, or 45% for credit profiles from 600 to 679. A ratio above 45% requires a 680 minimum. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you actually borrow. That detail catches many flippers off guard.

Step 5: Valuation. Lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal. A higher CLTV may call for a secondary valuation, and you can always request a full appraisal. Every line above $500,000 requires one.

Step 6: Funding the line. At least 75% of the line is drawn at closing. Interest starts on that amount immediately, so it is not a free-standing reserve you tap only when needed.

Which Structures Exist?

Two draw structures run through the wholesale partners. A longer-runway program offers a 5-year interest-only draw followed by a 25-year fully amortizing repayment. A higher-leverage program offers a 3-year interest-only draw followed by a 17-year repayment, though that structure is for primary residences and second homes only.

Investment-property lines use the 5-year draw and 25-year repayment structure only. Tennessee shortens both programs, to 3 years and 12 years or 5 years and 10 years. Pricing floats during both the draw and repayment periods and never converts to fixed.

A line can sit in first or second lien position, as a standalone product. The minimum draw after closing is $1,000 in most states, and Texas sets it at $4,000. Line sizes run from $25,000 to $750,000, with Michigan’s floor at $10,000. Any line above $500,000 is for a primary residence only. It requires a credit profile of 700 or better (720 on the longer-runway program), caps at 75% CLTV, and needs a full appraisal.

Primary Residence or Rental: Which Collateral Should Fund the Flip?

Pledging your home gives you the most leverage and the widest range of programs. It also puts your residence behind a project that can go wrong. The risk comparison from realestate-explained.com puts it plainly: a primary-residence line puts your home on the line, while an investment-property line puts only the rental on the line.

Think of it as a tradeoff between access and exposure.

• Primary residence. Higher CLTV ceilings and larger lines, but a stalled flip can threaten your home.
• Second home. A middle path, with a 640 credit floor and leverage that still reaches 90% CLTV at 720 or better.
• Investment property. Lower ceiling of 70% CLTV, a 700 credit floor, and a $500,000 cap, but the exposure stays inside the rental portfolio.

The flip point is simple. If you have limited rental equity and a strong flip pipeline, the home-secured line is the only practical way to reach meaningful capital. If you hold seasoned rentals with real equity and can live with 70% CLTV, keeping debt off the residence is the safer structure.

On Lendmire’s network, the investment-property ceiling is 70% CLTV, and that is the number to plan around.

A Worked Example Without the Payment Math

Consider an investor with a primary residence and a strong credit profile who wants to fund a down payment and rehab. The investor opens a line against the home, draws most of it at closing because of the 75% initial draw rule, and buys a distressed house. Rehab runs longer than planned.

Here is what the investor has to stress-test:

• Base case. The flip sells inside the interest-only window. The drawn balance is repaid from proceeds and the line is available again.
• Delay case. The sale slips. Interest keeps accruing on the full drawn balance, and the cost grows with each month.
• Floating-cost case. Because pricing floats and never converts to fixed, the carrying cost can rise while the property sits.
• Failed-flip case. The sale price falls short. The shortfall is now secured against the home.

Set a personal draw ceiling before applying. Many experienced flippers cap total draws well below what the program allows, so the first mortgage plus the line still leaves a real equity cushion. Treat the program maximum as a limit, not a target.

Where the General Rule Breaks

A few edge cases change the answer.

Title and vesting. Lines are for property held by the individual borrower or an inter vivos revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. This is the sharpest structural difference from a DSCR loan. If your rental is already deeded to an LLC, you would need a vesting change, or a DSCR cash-out refinance instead.

Property types. Single-family, 2-4 unit, PUD, townhome, and condominium (including non-warrantable) properties are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agriculturally zoned properties are not.

Exposure limits. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. A borrower with more than 15 financed properties is not eligible.

Derogatory credit. A bankruptcy needs 4 years of seasoning. Foreclosure history splits by program on primary residences and second homes, with one program seasoning a foreclosure at 7 years and the other declining the history outright.

Listed properties. A property listed for sale, or listed within the past 60 days, is ineligible in Indiana, North Carolina, Pennsylvania, Tennessee, Texas, and Washington. Texas primary residences are homestead properties and cap at 80% combined loan-to-value.

When a HELOC Is the Wrong Tool

A line is bridge capital. It suits the flip phase, then gets repaid.

If the plan shifts and you keep the flip as a rental, the exit is permanent financing based on the property’s rent. DSCR loans qualify primarily on property-level rental income covering the payment, subject to lender guidelines. The balance on the HELOC then needs to be repaid or refinanced. Lendmire’s complete DSCR loans guide covers how that second step works.

Other cases where a HELOC is the wrong fit:

• You need more than the equity supports. The line caps your project size.
• Your timeline is uncertain, and your carrying costs can’t absorb a long hold.
• Your DTI is already near 45%, since qualification runs on the maximum draw.
• The rental you would pledge sits in an LLC.

Key Terms Defined

CLTV (combined loan-to-value): The total of all loans secured by a property divided by its value.

Draw period: The window when you can borrow from the line and pay interest only.

Repayment period: The phase after the draw ends, when the balance amortizes with principal and interest.

Lien position: Whether the line sits first or second behind another mortgage.

Vesting: How title to the property is held, such as an individual or a revocable trust.

Bridge financing: Short-term capital used until a sale or permanent loan replaces it.

How to Prepare and Find the Right Fit

Because each wholesale partner sets its own overlays, the program that works is a function of your profile. Preparation looks like this:

1. Decide which property will secure the line, and confirm it is held in your name or a revocable trust. 2. Pull your credit and check where you land against the 600, 640, and 700 floors. 3. Estimate your DTI using the maximum draw, not your planned draw. 4. Set a draw ceiling and a stop-loss point for the flip. 5. Line up the HELOC before you find the deal, since a line already in place lets you move on a purchase without waiting.

A broker shops multiple wholesale partners and matches the scenario to the program, so you are not forced into one lender’s overlays. That includes the foreclosure-history split, the tradeline rules, and the appraisal requirements.

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. For related reading, see Lendmire’s piece Best Bank Statement HELOC Program to Fund a Flip or BRRRR Project. All program figures are subject to lender guidelines and full file review, and nothing here is a commitment to lend.

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.

References

1. Finder — HELOC on an investment property

2. Yahoo Finance — HELOC on an investment property

3. realestate-explained.com: HELOC for Investment Property