HELOC Requirements Instead of Borrowing Against a Brokerage Portfolio

The Quick Read: A HELOC on a rental is judged on the property’s equity, your credit, your debt load, and whether the lender will take a non-owner-occupied home as collateral. A portfolio-backed line is judged on what your investments are worth. Each puts a different asset at risk, and each has limits that surprise people.

• On an investment property, the network Lendmire brokers through tops out at 70% combined loan-to-value (CLTV), with a 700 minimum credit score and a maximum line of $500,000, subject to lender guidelines.
• Market surveys report that lenders want at least 20% equity left in a rental. That is a market-wide figure, not the network’s.
• A HELOC is secured by real estate. A securities-backed line is secured by your brokerage account and can be reduced or called when prices fall.
• These lines are available in Lendmire’s 16 full-service states only, narrower than the 41-market DSCR footprint.
• If the goal is simply to buy the next rental, a DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. It may remove the need for a line at all.

What Does a HELOC on a Rental Actually Require?

Four things decide it: equity, credit, debt-to-income, and the property itself. Rentals face tighter tests than a home you live in. NerdWallet notes that investment-property HELOCs aren’t offered by every lender and carry strict qualification rules, and it puts the equity expectation at 20% or more. Bankrate shows the same 20% minimum for a rental against 15% for a primary residence, and calls rental lines less common.

Across the wholesale network Lendmire places files with, the investment-property ceiling is 70% CLTV, which means at least 30% of the value stays untouched. That is stricter than the market surveys suggest.

The rest of the file follows a simple order:

1. Equity. The lender takes the property’s value, subtracts what you owe, and checks the result against the CLTV cap.

2. Credit. An investment line needs at least a 700 score on this network. Primary residences start at 600 and second homes at 640.

3. Debt-to-income (DTI). The maximum is 50%, and 45% for scores from 600 to 679. The lender tests DTI using the interest-only payment on the maximum draw, so a line you barely touch still counts as fully used.

4. Property and title. Single-family, 2-4 unit, townhome, PUD, and condo (including non-warrantable) properties are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not.

How Does the Lender Measure Equity?

CLTV is every loan against the property, existing mortgage plus the new line, divided by the property’s value. Stay under the cap and you pass this step.

Run it as percentages. Say a rental’s mortgage balance equals 50% of its value. A 70% CLTV cap leaves 20 points of value for the line. A property with a 65% mortgage balance leaves only 5 points. Same cap, very different outcome.

Valuation is usually light. Lines at or below $500,000 ordinarily run an automated valuation with no traditional appraisal, though a higher CLTV can trigger a second valuation. Every line above $500,000 needs a full appraisal, and you can request one on any line.

What Is the Structure of the Line?

The investment line runs a 5-year interest-only draw period followed by a 25-year fully amortizing repayment period. At least 75% of the line is drawn at closing. Pricing floats through both periods and never converts to fixed. Draws after closing are generally $1,000 at minimum.

That draw-at-closing rule matters. A HELOC marketed as a flexible reserve behaves more like a loan here, because most of it is funded and accruing from day one. Primary residences and second homes also have a 3-year draw with a 17-year repayment option.

Key Terms Defined

• HELOC: A revolving line of credit secured by real estate. You draw, repay, and draw again within the terms.
• CLTV (combined loan-to-value): All loans on the property divided by its value.
• SBLOC (securities-backed line of credit): A revolving line secured by stocks, bonds, or funds in your brokerage account.
• Advance rate: The share of a security’s market value that a lender counts toward your borrowing limit.
• DTI (debt-to-income): Your monthly debt payments divided by your monthly income.
• DSCR (debt service coverage ratio): Monthly rent divided by the full monthly payment on a property, including principal, interest, taxes, insurance, and any HOA dues.

How Does Borrowing Against a Brokerage Portfolio Work?

You pledge eligible securities, the lender assigns each one an advance rate, and the total sets your limit. The SEC and FINRA investor alert on securities-backed lines of credit describes them as resembling HELOCs, except the collateral is your securities instead of your home.

The same alert flags the main risk. Collateral prices keep moving, so your borrowing base moves with them. If you cannot repay on demand, the firm can sell your securities and cut your limit. A forced sale can also create a tax bill.

Using a portfolio line for a down payment is possible, but whether a mortgage lender accepts borrowed funds is decided lender by lender. It also changes the question. You are no longer asking whether a property has equity. You are asking whether your portfolio can survive a bad quarter without a call.

Concentration raises the stakes. A portfolio holding mostly one stock or sector can see its limit shrink even when the wider market is calm. The mortgage on a rental has no market-driven call. A securities line does.

HELOC vs. Portfolio Line, Side by Side

Where the General Rule Breaks

An LLC cannot hold title. This is the sharpest difference from a DSCR loan. Lines on this network require the property to be vested in you personally or in a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A rental already deeded to an LLC needs a vesting change first, or a DSCR cash-out refinance instead, subject to lender program eligibility.

Exposure limits apply. A borrower is limited to three lines. An investor with more than 15 financed properties is not eligible. Either limit can stop a large rental portfolio before the equity runs out.

A primary-home line can fund a rental purchase. Bankrate points to this when a rental line is hard to find. On this network, primary-residence ceilings reach 90% CLTV, but only at a 720 credit profile, and larger lines carry tighter caps. Your home becomes the collateral for an investment, so a failed rental still leaves you servicing the debt.

Credit history can block you outright. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure-family history is treated differently by each program, and on primary residences and second homes one of the two wholesale programs declines it regardless of age.

Borrowed down-payment funds are a lender-by-lender question. Whether a DSCR lender accepts line proceeds as verified assets depends on that lender’s guidelines. Ask before you draw, not after.

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.

Which Path Fits? Three Scenarios

Scenario one: large portfolio, little rental equity. You hold a sizable brokerage account and own rentals with thin equity. A portfolio line suits the equity gap. The risk to size is the call. Keep the drawn amount low enough that a sharp drop doesn’t force a sale.

Scenario two: strong rental equity, 700+ credit. You own a rental with a mortgage well under 70% of value. A HELOC on the property fits if the title is in your name or a revocable trust. Check your DTI at the maximum draw, since the lender tests that payment.

Scenario three: you want to buy another rental. Here the line is a means, not the goal. On a purchase, most DSCR files land at 75%-80% LTV (20%-25% down), and select programs reach 85% LTV with roughly a 700+ score. A line can raise that cash, but the loan underwriting still tests rent against the payment. The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.

Can a DSCR Loan Replace the Line Entirely?

Sometimes. A cash-out refinance on a rental tops out around 75% LTV across most of the network, with about 6 months of seasoning as the common expectation. That 75% applies to standard rentals. Short-term-rental cash-outs run lower, around 70%. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.

Coverage is the other half. A 1.00 ratio is where many select programs start, and stronger ratios open better terms. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Credit floors vary: 620 exists in parts of the network, most programs want around 660, and 700+ unlocks the strongest leverage tiers. Reserves are commonly around 6 months of the full payment, though they vary by lender, leverage, and loan size.

One caution on coverage. Clearing 1.00 does not mean positive cash flow. Repairs, vacancy, management, and utilities sit outside the ratio. A bigger down payment can lift coverage, but it never erases leverage caps, credit floors, or property eligibility.

For the full picture, see the complete DSCR loans guide. For the equity-line side, Lendmire’s piece How to Qualify for a DSCR HELOC for Landlords Borrowing Against a Rental covers the investor angle.

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 is a broker, not the lender, and every file is subject to lender guidelines and full review.

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. NerdWallet — HELOC on investment property

2. Bankrate — HELOC on investment property

3. SEC/FINRA Investor Alert: Securities-Backed Lines of Credit