How Much Can You Borrow on an Investment Property HELOC When Big Banks Decline?

The Quick Read: It depends on your equity, but the ceiling is 70% combined loan-to-value on an investment property, minus every lien already on the house, with the line itself capped at $500,000 and a $25,000 minimum, so a large first mortgage can leave no line at all. The numbers below come from the wholesale network Lendmire brokers through, subject to lender guidelines and full file review.

• The limit is property value times 70%, minus your first mortgage and any other liens.
• Credit must be at least 700, and a 720 score reaches the same 70% as a 700.
• The line is judged on your credit, income and debts, not on the property’s rent.
• An LLC cannot hold title on this line, which is the sharpest break from a DSCR loan.

Why Do Big Banks Decline These Lines?

Many large retail lenders screen out non-owner-occupied property before underwriting even starts. A decline often reflects product policy, not weak credit or thin equity. NerdWallet notes that lenders see higher default risk on a rental than on a primary home, and that not every lender offers a line on one.

That matters because the fix depends on the type of decline. The table sorts the common ones.

A broker with access to several wholesale lenders can tell which of these you are facing before any application is spent. Policy declines are the easiest to route around, because the product exists elsewhere.

How Is the Maximum Line Calculated?

The maximum is value times the allowed CLTV, minus all existing liens, then trimmed by the dollar cap and your personal qualification. On a rental with a mortgage, the 70% test usually binds first. On a high-value property with little debt, 70% of value can exceed $500,000, so the dollar cap binds.

The underwriting steps run in this order:

1. Credit. The profile must be at least 700. The lender uses a single-bureau score keyed to the primary wage earner, and the report can be no more than 90 days old at closing.

2. Value. An investment line caps at $500,000, and full appraisals begin only above that amount. A borrower can still request one.

3. CLTV. The lender adds the first-mortgage balance and the full requested line, then divides by value. The result must be 70% or less. The full credit limit counts toward leverage and debt-to-income even if you never draw it.

4. Debt-to-income. The maximum is 50%. The lender tests the interest-only payment on the full line, not the drawn amount.

5. Title. You hold title personally or in a revocable living trust.

6. Structure. The draw period is five years, interest-only, followed by a 25-year fully amortizing repayment.

What Does the Math Look Like at Different Mortgage Balances?

Express the first mortgage as a share of the property’s value, and the room left is 70% minus that share. The scenarios below use percentages of value, not dollars, so you can map them to your own property.

Two trims matter. A high-value, low-debt property can calculate above $500,000, and the cap cuts it back. A thin-equity property can calculate below $25,000, and the line is not offered at all. Run both ends before you assume the percentage tells the whole story.

Here is a stress test. Say your first mortgage is 55% of today’s value and you take a line for the full 15% of room. If values then fall 10%, your combined balance is roughly 78% of the new value, above the program ceiling. Nothing forces you to refinance that day, but it limits your options for any new line or refinance until values recover or you pay down.

Lines also come with payments that do not pause. Switchwize suggests modeling a two-to-three-month vacancy before you draw, and ReInvestorGuide warns that sustained rent loss can put the line itself at risk. The payment is tested on the maximum draw, so size the line for the worst month, not the average one.

Does a Higher Credit Score Raise the Limit?

No. On an investment property, a 720 score and a 700 score both reach 70% CLTV up to $500,000. Credit above 700 buys eligibility and a cleaner file, not extra leverage, and 700 is a hard floor with no tier beneath it.

This is a common point of confusion because primary-residence lines work differently. On a primary home or second home in the same network, the ceiling reaches 90% CLTV, and only at a 720-or-better profile. Market surveys report ceilings as high as 80% at some lenders for investment property, according to NerdWallet. On an investment property in Lendmire’s network, the ceiling is 70% CLTV. Do not carry a primary-home figure over to a rental.

Key Terms Defined

HELOC: A revolving line of credit secured by a property, drawn as needed up to a set limit.

CLTV (combined loan-to-value): All liens on the property, plus the new line’s full limit, divided by the property’s value.

Draw period: The stretch when you can borrow and pay interest only, five years on an investment line.

Seasoning: The minimum time you must own a property before a cash-out refinance is available, commonly about 6 months.

DSCR: Debt service coverage ratio, which compares a property’s rent to its monthly principal, interest, taxes, insurance and any HOA dues.

When Does Your File Fall Outside the HELOC?

Several conditions send a file to a different product. Most of them are structural, so no amount of equity fixes them.

LLC title. An LLC, corporation, partnership, or irrevocable, blind or land trust cannot hold title on this line. A property already deeded to an LLC needs a vesting change, which calls for legal advice first, or a DSCR cash-out refinance instead.

Credit from 600 to 699. The investment line is not available. A rent-based cash-out refinance reviews the property’s income against its payment, subject to lender guidelines.

Debt-to-income above 50%. Tax returns that show low income or losses can also push a file past this limit. A rent-based loan looks at the property instead of your personal ratios.

Needs above $500,000. Lines above that size are primary-residence only. Larger rental needs point to cash-out refinancing.

Portfolio size. A borrower can hold up to three lines, and owning more than 15 financed properties makes you ineligible.

Property types. Eligible types are single-family, 2-4 units, PUDs, townhomes and condos, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use and agriculturally zoned property are not eligible. Short-term rentals add a wrinkle, since some lenders restrict by location or by year-round renting, and 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.

Availability. Lendmire’s HELOC programs are offered only in its full-service states, which is a narrower footprint than its DSCR lending across 41 markets, including Washington, D.C.

HELOC or Rent-Based Cash-Out: Which One Fits?

The two products size the loan on different things. An investment HELOC is sized by your equity and personal profile. A DSCR cash-out refinance is sized by the property’s rent against its payment. The complete DSCR loans guide covers the rent-based side in full.

Cash-out on a standard rental tops out around 75% LTV across most of the network, and 70% LTV when the collateral is a short-term rental. About 6 months of seasoning is the common expectation. Coverage of 1.00 is where select programs start, and a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Clearing 1.00 is not the same as positive cash flow, because repairs, vacancy, management and capex sit outside the calculation. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.

The trade-off is plain. A HELOC leaves a low-balance first mortgage untouched and adds a second layer of debt. Cash-out replaces the first mortgage with a new one, which resets the loan but can raise the amount available.

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 Do You Find a Program That Writes This?

The lenders that write investment lines depend on your property type, credit profile and leverage need. Lendmire is a mortgage broker, not a lender. It arranges these lines through select wholesale partners and matches the scenario to the program, so one application does not have to guess which lender fits.

Gather these items before you start:

• A recent mortgage statement showing the first-lien balance
• Proof of how the property is titled, personal or revocable trust
• Income documents for the borrowers on the file
• A list of your financed properties and any existing lines
• A credit profile at 700 or higher, with the report under 90 days old at closing
• A target draw plan, with a vacancy cushion built in

Size the line for the draw, not for the headroom.

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. Call 828-256-2183 or request a quote.

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. NerdWallet – HELOC on an investment property

2. Switchwize – HELOC on an investment property

3. ReInvestorGuide – Can you really get a HELOC on a rental property