Can You Buy a Rental in Full With a HELOC on Your Primary Home?

The Quick Read: Yes, it can be done mechanically, because a HELOC is borrowed cash and a seller accepts it like any other funds, but it is a debt-funded purchase that puts your primary home behind 100% of the price. The rental does not secure or pay the line, so the rent has to carry the HELOC payment from your own cash flow.

• The line must be open before you go under contract, and the lender can freeze or reduce it.
• Your home is the collateral for the whole purchase, not just a down payment.
• The line is a bridge. The usual exit is a refinance on the rental that pays the line off.
• A DSCR loan tests the property’s rent against its payment. A HELOC tests you and the equity in your home.
• DSCR coverage compares rent to PITIA only. Clearing it is not the same as positive cash flow.

Most investors who ask this question have a home with plenty of equity and a rental they want to buy without a purchase mortgage. The answer is workable, but only if the exit is planned before the draw. Lendmire’s complete DSCR loans guide covers the loan that usually replaces the line.

How Does a Full HELOC Purchase Work?

It runs in four steps: open the line, draw the funds, close the purchase, then refinance the rental and repay the line. Each step has a failure point, and most failed files break at the first or the last.

1. Open the line before the rental is under contract. A HELOC is secured by a property you already own, so it has to exist first. Underwriting looks at your credit, debt ratios, and the equity in the home.

2. Know what the line is. A HELOC is an open-end line you can borrow against repeatedly, based on the home’s value minus what you owe, as the federal consumer-finance regulator’s HELOC explainer describes it. After the draw period, a repayment period begins. You can’t borrow more, and you repay the balance or make amortizing payments, per the FTC’s home equity loan and HELOC page.

3. Draw and close the purchase. A seller or title company wants proof of funds and a clean paper trail. Keep the draw statement and the settlement statement together. Lenders downstream will ask where the money came from.

4. Exit by refinancing. The sequence that works is acquire, season, then refinance the rental into long-term financing and use the proceeds to repay the line. The refinance has to clear on the rental’s own numbers.

What Does the Line on a Primary Home Look Like in the Network?

Across the wholesale network of lenders Lendmire works with, a standalone HELOC on a primary residence is a first or second lien line from $25,000 to $750,000. Primary-residence and second-home lines can reach 90% combined loan-to-value, but only at a 720-or-better credit profile. All of this is subject to lender guidelines. For the documented-income route on the same collateral, see Lendmire’s piece How to Use a Bank Statement HELOC on Your Primary Home to Buy a Rental.

Several other terms matter for a full-price purchase:

• A line above $500,000 is primary-residence only. It needs a credit profile of 700 or better (720 on the longer-runway structure), caps at 75% combined loan-to-value, and requires a full appraisal.
• Most primary-residence lines carry a 3-year interest-only draw with a 17-year repayment, or a 5-year interest-only draw with a 25-year repayment. At least 75% of the line is drawn at closing.
• The pricing floats and never converts to fixed. That matters when you plan to carry the line for a while.
• Debt-to-income tops out at 50%, and the lender reviews your file on the interest-only payment at the maximum draw.
• Title must sit with an individual or a revocable living trust. An LLC can’t hold title on the home.
• A borrower is limited to three lines and, past 15 financed properties, is not eligible.

Availability matters too. These HELOC programs are offered only in Lendmire’s 16 full-service states (AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, WA), which is narrower than the 41-market DSCR footprint.

Market-wide surveys report equity-line caps in the 80% to 85% range on primary homes. The network figure is the one above: 90% only at 720+, and 75% on any line above $500,000.

The Sizing Problem: Will the Line Cover the Price?

Often not. The line has to cover the price, closing costs, and any reserves the next lender wants, and the ceiling is a percentage of home value minus the first mortgage. A home with a low first lien can get there. A home with a large first mortgage usually can’t, even at 90% at 720+.

Run it as a formula: home value times the allowed combined LTV, minus your current balance, equals available line. Compare that number to the purchase price plus costs. If it falls short, you are looking at a partial HELOC purchase with a smaller DSCR loan on top, or a cheaper rental.

What Happens When You Layer the Debt?

You end up with the primary mortgage, the HELOC payment, and the rental’s own taxes and insurance, all paid from your cash flow. The DSCR ratio will not show the HELOC payment, which helps you qualify and misleads the budget.

DSCR compares rent to PITIA only. A rental can clear 1.00 and still lose money after a HELOC payment, repairs, vacancy, management, and utilities. Treat coverage as a qualifying test, not a profit measure.

Three risks stack up:

• The rate floats. The CFPB’s HELOC booklet notes these lines typically carry variable rates, so the carry can rise while you hold the line.
• Payment shock. When the interest-only draw ends and principal repayment begins, the payment steps up.
• Freezes. The same booklet says a lender can freeze or reduce a line if home values fall or your finances worsen. A frozen line before closing can kill the deal.

Effective leverage on a fully HELOC-funded purchase is close to 100%. That is more than most DSCR purchase files carry on the rental itself.

Does a Purchase Lender Treat HELOC Money as Cash?

Not exactly. Borrowed equity is still borrowed, and a purchase lender will want to see the source. On DSCR purchases, most programs apply their own cash-to-close, reserve, and documentation standards to HELOC-sourced funds. Counting the open line as reserves when the lender wants cash in your accounts is a common file error.

This is why the order matters. If you plan to buy in full with the line, you are skipping the purchase lender entirely. If you plan to use the line as a down payment, the purchase lender is in the file and will trace every dollar.

The Edge Cases That Catch Investors

• A lien on the fresh purchase. Putting a HELOC or other lien on the rental right after a cash purchase can affect how a later refinance is treated, so check the timing with your loan officer before you borrow against it.
• Lien order. A DSCR loan generally needs to sit in first position. A fixed-term DSCR loan behind a HELOC on the same property is a poor fit.
• Prepayment penalties. A DSCR loan with a prepayment structure can make a quick refinance impractical. Read it before you plan the exit.
• Renting out the house the line sits on. The CFPB booklet says renting your home out may be prohibited under the terms of your line.
• LLC title. DSCR loans can close in an LLC, subject to program eligibility. A HELOC cannot attach to an LLC-titled property. Buying in an LLC with a personal HELOC is workable, but the refinance has to land the loan in the entity.
• Balloon terms. Some plans demand payment in full at the end of the period, and the CFPB booklet warns a balloon you can’t pay puts the home at risk.

HELOC on the Rental Instead?

A line on the rental itself is a separate product with tighter terms. On an investment property, the network ceiling is 70% combined loan-to-value, with a 700 minimum credit score and a $500,000 maximum line. There is no tier above that for investment property. Investment lines run the 5-year draw and 25-year repayment structure only.

That line can’t fund the purchase of the same property, since you must own it first. It is a way to pull equity from a rental you already hold.

Full HELOC Purchase vs. the Alternatives

For most investors the middle row wins. DSCR purchase leverage on most files is 75% to 80% LTV, with select high-leverage programs reaching 85% LTV at roughly a 700+ score. Using a line for the down payment only means your home backs 20% to 25% of the price, not all of it. Loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders), and coverage of 1.00 is where select programs start. Sub-1.00 coverage is available through select lenders in the network, with leverage and terms adjusted. Most programs want a score around 660, and 700+ unlocks the strongest leverage tiers. All of it is subject to lender guidelines.

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

Who Should Skip This

Skip it if the first mortgage is large, the line would be frozen by a soft appraisal, or the rental can’t clear coverage at refinance. Skip it if the plan depends on rates staying put, since the line floats. Skip it if the rental needs rehab, because a delayed-financing style refinance returns only what you paid, not what you spent on repairs. And skip it on property types the DSCR network does not offer, such as manufactured homes, log homes, and barndominiums, since the exit loan won’t exist.

Key Terms Defined

• HELOC: A line of credit secured by a home you own, drawn as needed up to a limit.
• CLTV: Combined loan-to-value, which adds every lien on the home and divides by its value.
• Draw period: The stretch when you can borrow and typically pay interest only.
• DSCR: Debt service coverage ratio, the property’s rent divided by its monthly PITIA.
• PITIA: Principal, interest, taxes, insurance, and any association dues.
• Seasoning: The time you must own a property before a lender will refinance against its value.

Tax treatment can depend on how the funds are used and how the property is held. Keep clear records and speak with a qualified tax professional before relying on any deduction.

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 or request a quote.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB – What is a HELOC?

2. FTC – Home Equity Loans and Home Equity Lines of Credit