How an Investment Property HELOC Works to Buy Before You Sell Your Home

The Quick Read: A home equity line lets an investor borrow against equity in a property they already own, draw cash for the down payment on the next purchase, and repay it from the old property’s sale or a later refinance, provided the line is approved, drawn, and documented before the new contract closes.

• Two different structures get lumped together: a line on the home you plan to sell, and a line on a rental you plan to keep.
• On Lendmire’s wholesale network, a line secured by an investment property tops out at 70% CLTV, requires a 700 credit profile, and is capped at $500,000.
• A line on a primary residence can reach 90% CLTV, but only at a 720 or better credit profile.
• The line has to be repaid when the secured property sells, so it works as bridge money, not permanent financing.
• Once the new rental is owned, a DSCR cash-out refinance can often take the place of the line, subject to lender guidelines.

Which Property Secures the Line?

The property that secures the line sets the rules, and that choice splits this strategy into two different plans.

Version A: a line on the home you are selling. The collateral is your current primary residence. You draw against its equity, put that cash toward the next purchase, and pay the line off at the sale closing. Leverage here is more generous because the home is owner-occupied. On the network, primary-residence and second-home lines reach 90% CLTV, and that figure exists only at a 720 or better credit profile. In Texas, a primary residence is a homestead and caps at 80% combined loan-to-value.

Version B: a line on a rental you are keeping. The collateral is an investment property. You draw against its equity, buy the next property, and the line stays in place after the purchase. Nothing is sold, so nothing triggers payoff. That is a very different exit, and it matters later here.

Most search results for this topic treat the two as one. They are not. Version A has a built-in payoff event. Version B does not, which means you need a plan to replace or pay down the line.

Key Terms Defined

CLTV (combined loan-to-value): The first mortgage balance plus the new line, divided by the property’s value.

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

Repayment period: The stretch after the draw ends, when the balance amortizes and the payment includes principal.

Lien position: Where the line sits in line to be repaid. A line can sit in first or second position.

DSCR (debt service coverage ratio): Monthly rent divided by the property’s monthly principal, interest, taxes, insurance, and any HOA dues.

Seasoning: The ownership period a lender requires before it will lend against a property’s equity.

Automated valuation: A computer-generated value estimate used in place of a full appraisal.

What the Network Allows on an Investment Line

An investment-property line on this network is a narrow product. The ceiling is 70% CLTV, and nothing sits above it. The minimum credit profile is 700, and a 720 score buys no extra leverage because 720 and 700 both reach the same 70%. The maximum line is $500,000, and the minimum is $25,000 (Michigan is $10,000).

The structure is fixed too. Investment lines run a 5-year interest-only draw followed by a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing, so you are paying interest on most of the money from day one. The line’s pricing floats across both periods and never converts to fixed. Lendmire brokers these lines through select wholesale partners and never acts as the lender, and every figure here is subject to lender guidelines and full file review.

Four more mechanics tend to surprise investors:

• Valuation. Because an investment line can never exceed $500,000, and full appraisals begin only above that size, these lines are structurally in the automated-valuation lane and commonly close without a traditional appraisal. A borrower can still request a full appraisal.
• Title. The property must be held by the individual borrower or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. This is the sharpest difference from a DSCR loan. A rental already deeded to an LLC needs a vesting change before it can secure a line, or the better route is a DSCR cash-out refinance.
• Debt-to-income. Unlike a DSCR purchase loan, a line is a personal-income product. The maximum DTI is 50%, and the line is qualified on the interest-only payment calculated at the maximum draw.
• Property types. Single-family, 2-4 unit, PUD, townhome, and condominium (including non-warrantable) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not.

Other limits apply as well. A borrower is limited to three lines, and anyone owning more than 15 financed properties is not eligible. Availability is limited to Lendmire’s 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. That is narrower than the 41-market DSCR footprint, which covers 40 states plus Washington, D.C.

How the Sequence Works, Step by Step

The order of operations matters more than any single feature. A line that opens at the wrong moment can fail the whole plan.

1. Choose the collateral. Decide whether the line will sit on the home you are selling or on a rental you are keeping. Everything downstream depends on this.

2. Size the line. The method is the same everywhere: take the allowed CLTV percentage of the property’s value and subtract what is owed on the first mortgage. The CFPB’s HELOC booklet describes this same method. On an investment property, the network’s percentage is 70%. Picture a rental whose first mortgage sits at 50% of value. The line could reach up to roughly 20% of value, still subject to the $500,000 cap. A rental with a first mortgage already near 65% leaves very little room.

3. Open the line before the new deal gets complicated. Benzinga advises applying for the line before you shop for the second property, so the approval question is settled first. For Version A, there is a second reason to move early. In NC, PA, TN, TX, and WA, a property listed for sale, or listed within the past 60 days, is ineligible. A line on a home you have already listed may not be available at all. Open it before the sign goes up.

4. Draw the funds and document them. Remember that at least 75% of the line is drawn at closing. That cash is borrowed money, and the new purchase lender will want to see where the down payment came from. A line draw is a documented liability, not savings. Keep the draw, the transfer, and the deposit trail clean.

5. Qualify the new purchase with the line payment counted. The purchase lender sees a new lien payment and a larger debt picture. A DSCR purchase loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, so the line does not enter the coverage ratio. It does affect your liquidity and reserves. How a given lender treats a borrowed down payment is a program-level question, so confirm it before you write the offer.

6. Close the new purchase, then repay the line. In Version A, the line is repaid from the old home’s sale proceeds. In Version B, the line stays open and you need a replacement plan, covered below.

What Happens When the Home Sells

For Version A, the line has to be paid in full at the sale closing. The federal HELOC consumer booklet states that if you sell your home, you are generally required to pay off the line in full immediately. That makes the line bridge capital. It covers the overlap period, then it goes away.

The overlap is where the cost lives. You carry the old mortgage, the line, and the new mortgage at once. The CFPB describes a HELOC as an open-end line you borrow against repeatedly, with a draw period followed by a repayment period. It also warns that failing to repay could cost you the home that secures the line. Both the old home and the new rental carry risk while the sale is pending.

If the old home does not sell on schedule, the investor has three levers: price reductions, extending the draw period (not available on investment lines), or refinancing the first mortgage. Build the plan before the offer, not after.

Version B: When the Line Stays on the Rental

When the line sits on a rental, nothing forces payoff. That sounds convenient, and it is, until the draw period ends. Investment lines are interest-only for five years, then amortize over 25. The payment steps up when repayment begins, and the line’s pricing floats the whole way.

The cleanest exit is usually a DSCR cash-out refinance. Cash-out refinances top out around 75% LTV across most of the network, with about 6 months of seasoning as the common expectation. Because a standard cash-out ceiling is 75% against the line’s 70% CLTV, a refinance can sometimes take out the line and the first mortgage together. Lendmire’s complete DSCR loans guide walks through how those files are structured. That path depends on the rent covering the new payment and on the property meeting program rules. A property held by an individual or a revocable trust, which is what the line’s title rules require, does not need a vesting change for the refinance, but an entity-held rental needs extra steps.

Two cautions apply to Version B. First, the line draws against a property that earns income, but DSCR compares rent to PITIA only. Clearing 1.00 is not the same as positive cash flow, because repairs, vacancy, management, utilities, and capex sit outside the calculation. Second, a line payment is a personal debt that competes with your DTI. A borrower can have a rental that covers its mortgage comfortably and still run into the 50% DTI limit.

How the New Purchase Loan Treats the Plan

The new rental is usually financed with a DSCR purchase loan, and the line only matters to it indirectly.

Most purchase files land at 75% to 80% LTV, meaning 20% to 25% down. Select programs reach 85% LTV with roughly a 700+ score. Coverage of 1.00 is where select programs start, and stronger ratios open better pricing and leverage. A separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.

A larger down payment lowers the monthly payment and can lift the coverage ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.

Reserves are the quiet pressure point in this strategy. They vary by lender, leverage, loan size, and transaction type, and commonly sit around 6 months of PITIA. A line draw that covers the down payment does not automatically count as reserves, and an investor who drains every account to carry three obligations can run short. The numbers need to work with the line payment included, because the purchase lender will see it on the credit report.

The Strategy Compared With the Alternatives

NerdWallet notes that a home equity loan on an investment property is another alternative, and that investment-property lines generally come with fewer lenders and smaller amounts than lines on a primary home. That matches what shows up in practice. The investment line is a narrow tool, and a DSCR cash-out refinance is the broader one.

Where the General Rule Breaks

A few edge cases decide whether the plan works at all.

The lender restricts use. Bankrate reports that not all lenders allow line funds to be used for a down payment when you are also taking a mortgage on the new property. Read the line agreement before relying on it.

You rent out the old home instead of selling it. Many lines are written for an owner-occupied home, and some restrict renting it out. A line opened on a primary residence may not survive a change to rental use. Confirm this before the move.

The line gets frozen or reduced. The line is not a guaranteed pot of cash. A lender can freeze or reduce a line if the home’s value falls or your finances change, and the CFPB page above describes this risk. A line you counted on at contract may be smaller at closing.

The rental sits in an LLC. A very common sticking point. Entities cannot hold title on these lines, so an LLC-owned rental either needs a vesting change or a different structure, subject to program terms.

The credit profile is thin. An investment line has a 700 hard floor, with no tier beneath it. A borrower at 680 cannot use the investment version at all, though a primary-residence line may still be available at lower credit tiers.

Bankruptcy or foreclosure history. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Investment files follow a 7-year seasoning path for foreclosure and 4 years for a deed-in-lieu, pre-foreclosure, or short sale.

What the Decision Looks Like in Practice

Run the plan as three tests before committing.

Equity test. After the line, does the combined balance stay under the CLTV ceiling for that property’s occupancy? For a rental, that is 70%. If the first mortgage already eats most of it, the line will be small.

Carry test. Can you pay the old mortgage, the line, and the new mortgage together until the sale closes, with reserves intact? Picture an investor who sells in a slow stretch. The overlap runs longer than planned, and the line payment keeps running. Stress the plan against a longer overlap, not the best case.

Exit test. For Version A, is the sale realistic at the listing price? For Version B, will the property season long enough for a cash-out refinance, and will the rent cover the new payment? A plan with no exit is a loan you are hoping to repay.

The strategy fits an investor with real equity, solid credit, and a short, predictable overlap. It fits poorly when the equity is thin, the sale depends on a soft market, or the borrower already carries heavy personal debt.

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.

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.

References

1. CFPB – HELOC booklet

2. Benzinga – HELOC for a down payment

3. CFPB – HELOC consumer brochure

4. NerdWallet – HELOC on an investment property

5. Bankrate – Using home equity to buy another house