HELOC Borrowing Limits on a Second Home by Lender Type

The Quick Read: HELOC borrowing limits on a second home come from each lender’s own policy, not a federal rule, and on Lendmire’s wholesale network a second-home line runs from 75% combined loan-to-value (CLTV, your total debt against the home’s value) at a 640 credit score up to 90% at 720 or better, capped at $500,000. Investment-property lines top out at 70% CLTV. Subject to lender guidelines and full file review.

• Second-home lines scale with credit: 75% CLTV at 640, 80% at 660, 85% at 680 and 700, and 90% only at 720 or better.
• The line tops out at $500,000 on a second home, so the dollar cap often binds before the percentage does.
• An investment property is a different product, with a lower 70% CLTV ceiling and a $500,000 total line.
• Lender type matters. Big banks, credit unions, online lenders and wholesale networks each set limits differently.
• Rent-heavy properties are often better served by a DSCR cash-out refinance than by an equity line.

Key Terms Defined

HELOC: a home equity line of credit, a revolving line secured by the property that you draw on as needed.

CLTV: the first mortgage plus the new line, divided by the home’s appraised value.

Lien position: your place in line if the property is foreclosed. A first lien is paid first, and a second lien is paid after it.

Draw period: the stretch when you can borrow and pay interest only, before the balance starts amortizing.

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

How the Limit Is Actually Calculated

Your maximum line is the lender’s CLTV cap times the appraised value, minus what you owe on the first mortgage. Then any dollar cap applies on top. The lower of the two results is your limit.

Run it in percentages of value. Say a second home has a first mortgage equal to 60% of its value, and your credit supports an 85% CLTV cap. The room left for the line is about 25% of value.

Now flip the case. A high-value second home has a first mortgage equal to 40% of value, under the same 85% cap. The percentage math leaves 45% of value, which can be far more than $500,000. The dollar cap wins, and the equity beyond it stays untouched.

Two details matter here. The cap applies to the appraised value, not what you paid. And on this network, lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal. A higher CLTV may require a secondary valuation, and you can request a full appraisal in any case.

Lender Types and How They Set Limits

Market surveys report typical second-home CLTV caps in the 70–80% range, per the Opendoor explainer on using a HELOC to buy another house. On Lendmire’s network, a second-home line runs 75% CLTV at a 640 score and reaches 90% only at 720 or better.

That gap is the point. Each lender type sets its own policy, so the same house can get very different limits.

Big banks treat a second home as extra risk, so they cut CLTV, raise credit minimums and sometimes cap the dollar amount no matter how much equity you hold. Credit unions often bend more, but only for members. Online lenders sometimes stretch leverage, then offset it with stricter credit and income rules.

A broker sees many of these policies side by side, which makes comparing them the real job. Lendmire arranges these lines through select wholesale partners in 16 full-service states. That is narrower than its 41-market DSCR footprint, so confirm your state first.

The Network’s Limits by Occupancy

Occupancy decides the ceiling, and the ceilings differ sharply.

The second-home tiers step down with credit: 720+ gets 90%, 700+ and 680+ get 85%, 660+ gets 80%, and 640+ gets 75%. All sit under the $500,000 cap.

Lines above $500,000 exist only on a primary residence. They require a score of 700 or better (720 on the longer-runway program, the 5-year draw option below). They also cap at 75% CLTV and require a full appraisal. There is no investment tier above $500,000.

What Else Can Shrink Your Line

Credit and equity are only two of the tests. Several others cut limits just as often:

• DTI: the maximum is 50%. It drops to 45% for credit profiles from 600 to 679, and anything above 45% needs a 680 minimum. Lenders review your file on the interest-only payment calculated on the maximum draw, not the amount you plan to use.
• Structure: a line sits in first or second lien position. The 3-year draw program pairs a 3-year interest-only draw with a 17-year repayment. The longer-runway program pairs a 5-year draw with a 25-year repayment, and investment lines use that structure only. Pricing floats during both phases and never converts to fixed.
• Draw at closing: at least 75% of the line is drawn at closing on both programs. That is a real cost if you wanted an unused cushion.
• Title: the borrower must hold title personally or through a revocable living trust. LLCs, corporations, partnerships and irrevocable, blind or land trusts cannot hold title.
• Exposure: a borrower is limited to three lines, and combined exposure caps between $750,000 and $2,000,000 depending on program. Owning more than 15 financed properties makes you ineligible.
• Property type: single-family, 2–4 units, PUD, townhome and condo (including non-warrantable) work. Manufactured homes, co-ops, condotels, log homes, and commercial, mixed-use or agricultural zoning are not eligible. Several states also exclude a property listed for sale in the past 60 days.

Credit review also looks at tradelines and housing history, and a bankruptcy needs 4 years of seasoning. For how credit minimums play out by lender type, see Lendmire’s piece on bank statement HELOC minimum credit scores.

One more risk: a lender can freeze or reduce an open line if the home’s value falls significantly. If a purchase plan depends on that line, you are carrying liquidity risk.

Where the General Rule Breaks

A rental is not a second home. Lenders typically want a second home suitable for year-round living and a meaningful distance from your primary residence. LegalClarity gives 50 miles as a typical threshold. Occupancy clauses may also require personal use for part of the year. A house that is mainly rented is an investment property, and calling it a second home to win a higher cap is a misrepresentation risk.

Investment-property lines are scarce in the wider market. Many banks that once offered them have withdrawn the product. On this network they exist, at 70% CLTV, $500,000 total and the 5-year draw structure only.

LLC-titled rentals are out. A property already deeded to an LLC needs a vesting change before a home equity line is possible. A DSCR cash-out refinance is the other route, subject to program terms.

Two questions get blurred. A line on the second home itself follows the limits above. A line on your primary home used to fund a second-home purchase follows primary-residence limits, which are higher.

Lenders must hand you a government HELOC brochure at application, per the CFPB and a Federal Register notice. That is disclosure, not a limit. Caps remain lender policy.

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

When a Rental Belongs in DSCR Instead

If the property earns rent, a DSCR loan is usually the cleaner tool. It is a first-lien loan that qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. 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.

Here is how the numbers typically compare across our network:

• Purchases: most files land at 75%–80% LTV, with select high-leverage programs reaching 85% at roughly a 700+ score.
• Cash-out on a standard rental: about 75% LTV, with around 6 months of seasoning as the common expectation. Short-term-rental collateral generally sits lower, near 70%.
• Coverage: 1.00 is where many select programs start. A separate select-lender path goes below 1.00, with leverage and terms adjusted.
• Credit: a 620 floor exists in parts of the network, most programs want around 660, and 700+ unlocks the strongest tiers.
• Loan size: up to $3,000,000 on standard programs (smaller balances available through select lenders), with 30-year fixed as the spine and 40-year and interest-only options through select lenders.
• Reserves: commonly around 6 months of PITIA (principal, interest, taxes, insurance, and HOA dues), varying by lender, leverage and loan size.

Clearing 1.00 does not mean positive cash flow. Repairs, vacancy, management and capex sit outside the calculation.

For very large balances, Lendmire’s breakdown of super-jumbo cash-out seasoning and reserve rules covers how those files tighten. The complete DSCR loans guide covers the full program picture.

Which Path Fits Your Situation?

• Vacation home you use yourself, personally titled: a second-home line, with limits set by your credit tier and the $500,000 cap.
• Home that is mainly rented: a 70% CLTV investment line if title and credit fit, or a DSCR cash-out if they do not.
• Rental held in an LLC: DSCR cash-out, or a vesting change first.
• Down payment on a new property: a line on your primary home, which can go higher and is generally the easier product.
• Balance well above $500,000: primary-residence line with a full appraisal, or a DSCR file.

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 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. Opendoor, Can You Use a HELOC to Buy Another House

2. LegalClarity, Using a HELOC to Buy a Second Home

3. CFPB Learn More (compliance resources)

4. Federal Register, notice of revised HELOC booklet