Where to Get a HELOC to Cover the Down Payment on a Short-Term Rental

The Quick Read: A home equity line of credit (HELOC) for a short-term rental down payment comes from one of two places, either a lender writing a line against your primary home or a smaller group of lenders writing one against a rental you already own, and the line is a separate approval from the loan that buys the new property.

• A line on your primary home draws on a broad pool of banks, credit unions and online lenders.
• A line on an existing rental has fewer lenders and tighter terms, and on Lendmire’s wholesale network an investment line caps at 70% combined loan-to-value (CLTV).
• The line should be open before you go under contract, and many purchase lenders want its funds seasoned too, so ask how long the money must sit.
• Ask the purchase lender whether borrowed funds count as a down payment before you draw anything.
• Passing the debt service coverage ratio (DSCR) test on the new property does not account for the line’s payment, which comes out of your own cash flow.

A HELOC is a second loan that sits beside your purchase loan. Two lenders look at two different assets, and neither approval promises the other.

What a HELOC Actually Does in This Deal

A HELOC lets you borrow against the equity in a property you own, then use the cash as your down payment on the next one. Equity is what the property is worth minus what you owe on it. Yahoo Finance gives a simple example: a $500,000 home with a $300,000 mortgage has $200,000 of equity, or 40%. It also confirms that owners can use that equity for the down payment and closing costs on a vacation home or investment property.

The loan on the property you want to buy is a DSCR loan. DSCR stands for debt service coverage ratio. It compares the property’s rent to its monthly payment (principal, interest, taxes, insurance and any association dues). The property’s rental income does most of the qualifying, subject to lender guidelines. That is why investors reach for a HELOC. Their personal paperwork stays out of the way, and the equity in another property supplies the cash. Lendmire’s complete DSCR loans guide covers the purchase side in full.

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.

Where Do You Actually Get the Line?

Where you get the line depends on which property secures it. A line on your primary home is the easier route and draws on the widest group of lenders. A line on a rental you already own is harder to find. NerdWallet reports that fewer lenders offer investment-property lines, that you can borrow less against them than against a primary home, and that fees tend to run higher.

Two practical notes on that table. First, your own bank or credit union is the natural first call, because it can see your deposits and history. Second, a broker sees many lenders’ guidelines at once, which helps when a lender you call does not lend on a rental.

Lendmire is a broker, not the lender. It places home equity lines through select wholesale partners in 16 full-service states, which is narrower than its 41-market DSCR footprint. Lendmire’s piece on investment property equity lines for a short-term rental goes deeper on the rental-secured version.

How Underwriting Treats the Line, Step by Step

Underwriting here is really two separate reviews that you sequence yourself. Run them in the order below, and the strategy holds together.

1. Pick the collateral. Choose between your primary home and a rental you own. A primary-home line puts your residence behind a business purchase. As the CFPB notes, you could lose the home if you fall behind. A rental-secured line keeps your residence out of it.

2. Work out the available line. The line lender takes a percentage of appraised value, subtracts existing liens, and reviews credit, income and debts. The result is your usable equity.

3. Get the line approved and open before you are under contract. A HELOC is a standalone loan. It does not close alongside the purchase, so it has to exist first.

4. Ask the purchase lender about borrowed funds. Down payment, reserves and closing costs are three separate buckets. A program may accept borrowed money for one bucket and not another.

5. Draw the funds and document the trail. Expect to show the line agreement, its statements, and bank statements where the draw lands. Every purchase lender wants a documented source for the down payment.

6. Close the purchase on the property’s own numbers. The DSCR test compares the new property’s rent to the new loan’s payment. The line’s payment is not in that ratio.

7. Carry both loans afterward. You owe the line, which floats and runs interest-only during its draw period, plus the new DSCR loan.

The CFPB gives a 10-year draw period as an example of how long that interest-only window can last. On an investment line, Lendmire’s network uses a shorter 5-year draw, as the next section shows.

What the Network Allows on an Investment Line

On investment property, Lendmire’s wholesale network caps combined leverage at 70% CLTV. That is the ceiling, with no tier above it. CLTV adds your existing first mortgage and the new line together, then divides by the property’s value. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

Market surveys report that some lenders go as high as 80% on investment-property lines, according to NerdWallet. That is a market-wide figure. On this network, the investment ceiling is 70% CLTV.

Other investment-line parameters, subject to lender guidelines and full file review:

• Credit: 700 is the minimum, with no tier beneath it. Scores of 700 and 720 both reach the same 70% ceiling, so a higher score buys eligibility rather than more leverage.
• Line size: an investment line tops out at $500,000.
• Structure: a standalone line in first or second lien position, with a 5-year interest-only draw and a 25-year repayment period. At least 75% of the line is drawn at closing.
• Cost behavior: the line’s pricing floats during both the draw and repayment periods and does not convert to a fixed rate.
• Valuation: a line at or below $500,000 normally uses an automated valuation, so a traditional appraisal is commonly not part of the file.
• Debt-to-income: 50% maximum, qualified on the interest-only payment at the maximum draw.
• Limits: a borrower can hold up to three lines, and an investor with more than 15 financed properties is not eligible.

The 75% drawn-at-closing rule changes how you size the line. You will pay on most of it from day one, so match the line to the down payment you need rather than opening a much larger one for flexibility.

Primary Home, Rental, or Cash-Out: Choosing the Route

The route you choose follows from what you own and what you want to keep intact. On a primary residence, the network’s ceiling reaches 90% CLTV, but only at a 720 credit profile or better. Primary-home lines also come in a 3-year draw structure (17-year repayment) and the 5-year draw structure (25-year repayment).

A line above $500,000 is for primary residences only. It requires 700 or better (720 on the 5-year-draw structure), caps at 75% CLTV, and needs a full appraisal.

A second-lien line leaves your current first mortgage alone. A cash-out refinance replaces it. Lendmire’s guide to refinancing a rental to pull equity covers that second path. The deciding question is whether you want to keep the existing first loan as it is.

Where the General Rule Breaks

The general rule is that equity in one property funds the down payment on another. These cases bend it.

A fully borrowed down payment. Borrowing the entire down payment means roughly 100% financing across two loans. The new property’s rent has to carry the DSCR loan. Your own cash flow has to carry the line. Some purchase programs want some seasoned cash of your own in the deal, so ask before you assume the whole amount can be borrowed.

Reserves. Reserves are the cash a lender wants left in the bank after closing. Many purchase lenders treat borrowed money differently for reserves than for the down payment. Ask which bucket the line’s cash is allowed to fill.

Title held in an LLC. An LLC, a corporation, a partnership, or an irrevocable, blind or land trust cannot hold title on a home equity line in this network, subject to lender program requirements. Fee simple or leasehold title held by you individually, or by a revocable living trust, works. A rental already deeded to an LLC needs a vesting change or a DSCR cash-out instead.

Property type. Single-family homes, 2-4 units, PUDs, townhomes and condominiums (including non-warrantable ones) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial and mixed-use properties, and agricultural zoning are not. Check that the rental you are borrowing against and the short-term rental you plan to buy both fall inside those lines.

Frozen or reduced lines. The CFPB’s HELOC booklet says lenders can freeze or reduce a line if the property’s value drops. Draw the money before you start shopping, not in the middle of a contract.

Short-term rental underwriting. Short-term rental purchase loans reach up to 75% LTV. Expect a 640 or better score and about 12 months of hosting history, with a 1.00 coverage floor on purchases. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

Stress-Test Both Payments Before You Draw

Passing the DSCR test is not the same as making money. The ratio compares rent to the property’s payment only. Repairs, vacancy, management, utilities and capital costs sit outside it, and so does the line.

Run the numbers on this modeled scenario, treating every input as an assumption. You buy a short-term rental at 75% LTV and borrow the 25% down payment on your primary-home line. Say the rent covers the new loan at about 1.15x, which clears the 1.00 coverage floor that applies to short-term rental purchases. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Now add the line. The interest-only payment on the borrowed down payment is a second bill, and it floats. Rent that covers the purchase loan at 1.15x has to stretch across both payments, and depending on the size of the line and its pricing, combined coverage could fall toward or below 1.0x. In that case the property would have passed its own test while you lose money each month, before any vacancy or repairs. The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.

Short-term rental income swings with season, occupancy and local rules, so a thin buffer carries more risk than it would on a long-term lease. Even a file that clears the coverage floor still carries the line’s payment in your budget. A larger down payment, borrowed or not, shrinks the purchase loan and can lift the DSCR. It does not remove leverage caps, credit floors, reserve rules or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.

Questions to Ask Before You Apply

Take this list to the purchase lender or broker on the first call.

• Do you accept borrowed funds for the down payment, and does any cap apply to the borrowed share?
• Can borrowed funds count toward reserves or closing costs?
• What documents do you want to see for the draw, and how long must the money sit?
• Does the property type and hosting history fit your short-term rental program?
• Does the line’s payment enter any of your qualification math?

Then ask the line lender these.

• Do you write on my collateral, primary home or rental?
• What is the combined loan-to-value ceiling for my occupancy and credit?
• What share of the line is drawn at closing?
• Can you freeze or reduce the line, and under what conditions?

Key Terms Defined

HELOC: An open-end line of credit secured by property, which you can borrow against repeatedly up to a limit.

CLTV: Combined loan-to-value, which adds every loan on a property together and divides by its value.

Second lien: A loan that sits behind your first mortgage and gets paid after it if the property is sold.

DSCR: Debt service coverage ratio, which compares a property’s rent to its monthly payment.

Reserves: Cash left in your accounts after closing, which a lender may require as a cushion.

Seasoning: The time money has sat in your account, or a loan has been in place, before a lender counts it.

Next Step

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 through the site.

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. Yahoo Finance – HELOC for down payment

2. NerdWallet – HELOC on investment property

3. CFPB

4. CFPB – HELOC booklet