HELOC Requirements to Buy a Second Home

The Quick Read: A home equity line can fund the down payment on a second home, but it rarely covers the whole purchase, and the line lender and the purchase lender judge two separate files. On a second-home line through Lendmire’s wholesale network, credit starts at 640, and the ceiling reaches 90% CLTV only at a 720 score.

• Second-home lines run $25,000 to $500,000; larger lines, up to $750,000, are available on primary residences only.
• The 90% CLTV ceiling applies only at a 720-or-better profile, while a 640 score reaches 75% CLTV.
• DTI maxes at 50% and is figured on the interest-only payment at the maximum draw.
• Lines at or below $500,000 ordinarily use an automated valuation rather than a full appraisal.
• The line is variable-rate and puts the home that secures it at risk.

What Does “HELOC to Buy a Second Home” Actually Mean?

Two different questions hide inside this topic. The first is using a line on your current home to fund a second purchase. The second is opening a line on a second home you already own. Most buyers mean the first, and this article covers it.

A home equity line is a revolving credit line secured by your home, not a purchase mortgage. The federal consumer-finance regulator describes it as an open-end line you can borrow against repeatedly, with a draw period that can run 10 years and a variable rate. Bankrate notes that equity can fund a down payment, closing costs, or even the full price of a second home.

In practice the line is usually the down payment source. You still need a loan for the rest. If the second property is a rental, that loan is often a DSCR loan. For the full picture of how those work, see Lendmire’s complete DSCR loans guide.

How Does Underwriting Treat the Line, Step by Step?

Underwriting follows a clear order. Each step has its own test.

Step 1: Measure usable equity. Multiply the maximum CLTV by the home’s value, then subtract every lien already on it. Lenders typically want some equity left untouched. Bankrate reports that lenders usually require you to keep 15% to 20% in the home. That is a market-wide statistic. On Lendmire’s network the ceiling depends on credit tier and occupancy, covered below.

Step 2: Qualify the line. Expect a credit pull, an income and debt review, and a valuation. Lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal. A higher CLTV may require a secondary valuation, and a borrower can always request a full appraisal. Every line above $500,000 requires one.

Step 3: Draw and move funds. At least 75% of the line is drawn at closing. After that, the minimum subsequent draw is typically $1,000, with a higher minimum in Texas.

Step 4: Fund the purchase loan. The line pays the down payment, and a separate lender finances the rest. A conventional second-home loan counts the line payment in your debt-to-income ratio. A DSCR purchase is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. Personal DTI is not the test.

Step 5: Source and season the funds. Underwriters still want a clean paper trail for the down payment. They review credit, reserves, and property eligibility separately from how you raised the cash.

What Are the Network Requirements for a Second-Home Line?

Borrower and property requirements both matter. Lendmire brokers these lines through select wholesale partners, and every figure below is subject to lender guidelines and full file review.

The 90% ceiling exists only at a 720-or-better profile. It is not the general case. Investment-property lines, by contrast, top out at 70% CLTV on this network, with no tier above it.

Other requirements to plan around:

• Credit file. The overall program floor is 600, but second homes floor at 640. The score is a single-bureau model keyed to the primary wage earner. The report can be no more than 90 days old at closing.
• DTI. The maximum is 50%, and 45% for profiles from 600 to 679. Because second-home lines start at 640, the 45% limit applies to second-home scores from 640 to 679. Anything above 45% needs a 680 minimum.
• Property types. Single-family, 2-4 units, PUDs, townhomes, and condos, including non-warrantable condos, are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural zoning are not.
• Title. The borrower must hold title individually or in a revocable living trust. An LLC cannot hold title on the property securing the line.
• Exposure. A borrower is limited to three lines, and owning more than 15 financed properties makes the borrower ineligible.
• Availability. This product is offered only in Lendmire’s 16 full-service states, which is narrower than the 41-market DSCR footprint.

Which Draw Structure Fits?

Two draw structures exist on primary residences and second homes. One has a 3-year interest-only draw followed by a 17-year amortizing repayment. The other has a 5-year draw followed by a 25-year repayment. Tennessee shortens both. Investment lines use the 5-year structure only.

Pricing floats across both the draw and repayment periods. It does not convert to fixed. The CFPB notes that some bank plans offer a fixed-rate conversion. That feature is not part of this network’s structure.

The longer runway gives a flatter payment during the draw. But the repayment phase still arrives, and the payment steps up when it does. Plan for that date before you borrow.

How Does the Line Interact With the Second-Home Purchase Loan?

The answer depends on the purchase loan type, and the two main paths treat the line very differently.

Conventional second-home loan. The line payment lands in your DTI. Qualification here runs on the payment calculated on the maximum draw, so a large undrawn balance can still weigh on your ratio.

DSCR purchase loan. The line is a separate file, and its payment does not enter the property’s rent-to-payment math. That is the DSCR advantage for a rental. DSCR compares rent to principal, interest, taxes, insurance, and any HOA dues. Clearing the coverage floor is not the same as positive cash flow. Repairs, vacancy, management, utilities, and capex sit outside the ratio. The line payment is also outside it, but it still leaves your pocket every month.

Purchase leverage on DSCR files typically runs 75% to 80% LTV, and select high-leverage programs reach 85% with roughly a 700+ score. A larger down payment lowers the payment and can lift the coverage ratio. It never erases credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.

Coverage of 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Reserves vary by lender, leverage, and loan size, commonly around 6 months of PITIA.

Where Does the General Rule Break?

Several edge cases change the answer.

• Borrowed funds. Down payment, reserves, and closing costs are separate pots. Some programs accept borrowed funds for the down payment and others want unborrowed cash.
• Permitted use. Not every lender lets you use a line to buy another property. Some reserve lines for home expenses.
• LLC-owned rentals. A rental already deeded to an LLC cannot secure the line. It needs a vesting change, or a DSCR cash-out instead, subject to program terms.
• Second home versus rental. Occupancy changes the ceiling. A second-home line reaches 90% CLTV at 720. An investment line stops at 70%. Lines above $500,000 are primary-residence only, require 700 or better (720 on the longer-runway structure), and cap at 75% CLTV.
• Texas primary residences. These are homesteads and cap at 80% combined, with extra waiting rules. Second homes and investment properties are non-homestead transactions.
• Listed properties. A property listed for sale, or within the past 60 days, is ineligible in NC, PA, TN, TX, and WA.
• Derogatory history. A bankruptcy needs 4 years of seasoning. Foreclosure-family history splits by program. One path seasons a foreclosure in 7 years, and the other declines it regardless of age.
• Freezes. The FTC notes a lender may stop advances during any period when rates exceed the maximum stated in your agreement.

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

How Does the Decision Look in Practice?

Compare three paths before you draw.

Picture a homeowner with a 720 score and a primary home with solid equity. The second-home tier allows up to 90% CLTV at that score, so the line may cover most of a 20% down payment. Then ask the stress question: can the household carry the first mortgage, the line payment, and the new loan if the line’s variable payment rises and the new property sits vacant for a stretch? If not, draw less than the full line. Keep a buffer for the end of the draw period, when repayment begins. Final terms depend on the property type and the borrower’s complete credit picture.

Now picture the same buyer at a 660 score. The ceiling drops to 80% CLTV. A smaller line means a larger share of the down payment must come from cash, and some programs will not accept borrowed funds for reserves.

The decision comes down to equity, the purchase lender’s rules on borrowed funds, and the cash cushion you hold after closing.

Key Terms Defined

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

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

Repayment period: The phase after the draw ends, when the balance amortizes.

DTI (debt-to-income): Your monthly debt payments divided by your monthly income.

DSCR: A ratio comparing a property’s rent to its full monthly payment, including taxes and insurance.

Seasoning: The time funds or events must sit in your file before a lender counts them.

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. Program details change. This is not a commitment to lend.

Interest on a line that funds a second home is a tax question, and the answer depends on the property secured and what the money buys.

For current guidelines and terms, see Lendmire’s home equity page.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage brokerage serving homeowners and real estate investors in its 16 full-service states. Home equity lines of credit are arranged through wholesale lending channels; Lendmire brokers the line and the lender underwrites each application under its occupancy-based guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB

2. Bankrate – Home equity to buy another house

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