HELOC Lenders to Fund a Second Home Purchase

The Quick Read: A home equity line on a property you already own can supply the down payment for a second home, but the lender on the new purchase, not the line lender, decides whether borrowed money counts, so which HELOC lender fits depends on occupancy, credit profile, available equity, and whether the new property is a second home or a rental. The line lender cares about the collateral. The purchase lender cares about where the cash came from.

• The line must be opened on a property you already own. You cannot draw against the home you are about to buy.
• Across Lendmire’s wholesale network, the ceiling is 90% combined loan-to-value (CLTV) on primary-residence and second-home lines, and only at a 720-or-better credit profile. Below that, second-home ceilings step down with credit, and an investment-property line tops out at 70% CLTV.
• The line payment sits outside a DSCR ratio, but it is still cash leaving the borrower’s pocket every month.
• A pure rental purchase usually belongs on a DSCR loan, not a second-home mortgage.

What Does a HELOC Actually Do in a Second Home Purchase?

A HELOC turns equity in one property into cash for another. The line is secured by the home you own today. You draw, move the cash into your account, and use it for the down payment and sometimes closing costs on the new purchase. That purchase gets its own separate loan.

Two lenders are involved, and they ask different questions. The line lender asks whether the collateral, the credit, and the debt-to-income ratio support the line. It does not care what you spend the money on. The purchase lender asks whether the borrowed cash is an acceptable source for the down payment. Nothing forces that lender to say yes.

The Federal Trade Commission describes a HELOC as a revolving line secured by the home, usually with a variable APR, where you pay interest only on what you borrow. That revolving feature matters for investors. Pay the balance down and the room comes back for the next deal.

Key Terms Defined

CLTV (combined loan-to-value): The total of all loans against a property divided by its value, including the first mortgage and the new line.

Draw period: The stretch when you can borrow from the line and payments are interest-only on the network’s programs.

Repayment period: The stretch after the draw ends, when the balance fully amortizes and you can no longer borrow.

Seasoning (of funds): How long drawn money has sat in your account before the purchase lender will treat it as ordinary funds.

DSCR: The property’s rent divided by its monthly principal, interest, taxes, insurance, and any association dues.

Reserves: Liquid funds held after closing, tested separately from the down payment.

How Underwriting Treats the Money, Step by Step

The order matters more than any single number. This is how the sequence runs on a typical file.

1. Equity check on the home you own. Available equity sets the size of the line. The line lender looks at credit, DTI, and CLTV on the collateral property, and the occupancy of that property decides the ceiling.

2. Open the line before you shop seriously. A line in place and documented before you go under contract keeps the paper trail clean. The draw record and the line agreement become part of the purchase file.

3. Draw and let the cash sit. Drawn money that moves straight into escrow draws questions. Cash that has sat in your account long enough looks like ordinary funds. The right waiting period depends on the purchase lender.

4. Purchase-loan underwriting traces the source. Expect to hand over the line agreement, the draw confirmation, and statements showing the money landing in your account.

5. The payment gets treated according to loan type. A conventional second-home mortgage counts the new line payment in your debt-to-income ratio. A DSCR purchase loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, so the personal line payment stays outside the ratio.

6. Down payment, closing costs, and reserves are three separate pots. A purchase lender may accept borrowed money for the down payment and refuse it as reserves. Ask about each pot by name.

7. Plan the payoff before closing. The draw period is interest-only on the network’s programs, which helps cash flow early. The CFPB notes that once the draw period ends, you can no longer borrow and the line moves into repayment. A payoff plan means a paydown schedule, a refinance, or a sale of something.

What the Network’s Line Programs Look Like

Lendmire is a mortgage broker, not a lender. It places HELOC files with select wholesale partners, and what follows are program ranges across that network, subject to lender guidelines and full file review.

Ceilings are tied to occupancy of the property that secures the line:

On second-home collateral, the ceiling steps down with credit: 85% CLTV at 700 and 680, 80% at 660, and 75% at 640, which is the minimum credit score. A line above $500,000 is primary-residence only. It requires a 700 credit profile or better (720 on the longer-runway structure, described next), caps at 75% CLTV, and needs a full appraisal.

Two draw structures exist on primary and second-home lines. One runs a 3-year interest-only draw followed by a 17-year repayment. The other, the longer-runway structure, runs a 5-year draw followed by a 25-year repayment. Investment-property lines use the 5-year draw and 25-year repayment only. At least 75% of the line is drawn at closing. Pricing floats through both periods and never converts to fixed.

Other mechanics worth knowing:

• Line size: $25,000 to $750,000, with one state’s floor lower.
• DTI: 50% maximum, 45% for credit profiles from 600 to 679, and a ratio above 45% requires a 680 minimum. The line is qualified on the interest-only payment at the maximum draw.
• Valuation: Lines at or below $500,000 ordinarily run automated valuation. A higher CLTV may call for a secondary valuation, and a borrower may ask for a full appraisal anyway.
• Credit: Program floor of 600, with a single-bureau score keyed to the primary wage earner. The report can be no more than 90 days old at closing.
• Availability: Lendmire’s 16 full-service states only. That is narrower than its DSCR footprint of 41 markets, including Washington, D.C.

Which lender or program fits depends on the file: occupancy of the collateral, credit tier, equity, property type, and how much of the line the borrower needs on day one. A broker that shops several wholesale lenders can match those facts to the program whose overlays fit best.

Where the General Rule Breaks

The basic idea (draw, park, buy) holds in most cases. These are the places it does not.

The title problem. The line lenders in this network need the individual borrower or a revocable living trust on title. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A rental already deeded to an LLC needs a vesting change, or a DSCR cash-out instead.

Property types. Condominiums, including non-warrantable ones, PUDs, townhomes, single-family, and 2-4 units are eligible. Manufactured homes, co-ops, condotels, log homes, and commercial, mixed-use, or agricultural-zoned properties are not.

Credit history events. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure history splits by program on primary and second-home collateral. One of the network’s two wholesale programs seasons a foreclosure at 7 years and a deed-in-lieu, pre-foreclosure, or short sale at 4, while the other program declines that history at any age. Investment files follow the 7-and-4-year path.

Rental use of the collateral. Selling the home generally requires paying the line off in full, and renting the home may be prohibited under the line’s terms. If you plan to rent the home that secures the line, read that clause first.

Someone else’s equity. Using a relative’s line for your down payment is a different transaction with its own gift and ownership problems. Many purchase lenders refuse it.

Exposure limits. A borrower is limited to three lines, with combined exposure capped 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.

Listed properties. In several states, a property that is listed for sale, or was listed within the past 60 days, is ineligible as collateral.

Second Home or Rental? Where DSCR Takes Over

The phrase “second home” hides a fork. A true second home is a vacation or occasional-use property financed with a conventional second-home mortgage, which counts your personal income and debts. A rental you buy to earn income belongs in a different category.

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. They are not available on primary residences or second homes. If the new property is a rental, the line payment never enters the ratio, and the property is judged on its own rent.

Here are the DSCR ranges across the network, framed as typical guidance:

• Purchase leverage: Most files land at 75%-80% LTV (20%-25% down) on a purchase. Select high-leverage programs reach 85% LTV on a purchase with roughly a 700+ score.
• Coverage: 1.00 is where many select programs start. A separate select-lender path goes below 1.00 coverage, with leverage and terms adjusted. Stronger ratios open better leverage.
• Credit: A 620 floor exists in parts of the network. Most programs want about 660, and 700+ unlocks the strongest leverage tiers.
• Loan size: up to $3,000,000 on standard programs (smaller balances available through select lenders), with 30-year fixed structures generally required above $2,500,000.
• Reserves: Commonly around 6 months of PITIA, but they vary with lender, leverage, loan size, and transaction type. Loans above $1,500,000 typically step up to about 9 months. A purchase lender that takes borrowed money for the down payment may still want unborrowed reserves.

Borrowed down payment policy splits into three camps across lenders: some accept documented line proceeds, some cap the borrowed share, and some require unborrowed cash. A fully borrowed down payment means roughly 100% combined financing across two loans. The rent has to cover the purchase payment while you carry the line payment separately.

Clearing 1.00 does not mean positive cash flow. DSCR compares rent to PITIA only. Repairs, vacancy, management, utilities, and capex sit outside the calculation, and so does the line payment. For the full mechanics, see the complete DSCR loans guide.

Does This Move Fit Your File?

It tends to fit an investor with strong equity in a home, a 720-plus credit profile, a documented plan to repay the line, and a purchase lender that accepts borrowed down payment funds. It tends to fit poorly if the equity is thin, the plan for repayment depends on a future refinance that is not guaranteed, or the only collateral is a property already held in an LLC.

Two risks deserve plain language. First, the collateral is your existing home, and falling behind on the line can cost you that home, as consumer-protection guidance on home equity lines warns. The new property’s rent does not shield the old one. Second, the line floats. The payment can climb on its own schedule while the rent on the new property does not.

Cross-collateral exposure is real too. Until the line is paid down or refinanced, the two properties are tied together financially, even though only one secures the line.

Sequence is the fix for most of these problems. Settle the line first, ask the purchase lender about borrowed funds in writing, and test the budget with the payment at the full draw. For related ground, Lendmire has a companion piece Top HELOC Providers to Fund a Business Purchase or Second Home Down Payment and another on HELOC options for a business purchase and a second home down payment.

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. Lendmire’s calculator offers an illustrative estimate to frame that conversation, not a quote. Line availability follows lender guidelines and full file review, and a well-matched line plus a clear payoff plan matters more for a second-home purchase than the size of the draw.

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. FTC – Home equity loans and home equity lines of credit

2. CFPB