The Quick Read: A home equity line behind a first mortgage you want to keep is sized by that loan’s balance, not its cost. On the wholesale network Lendmire works with, an investment line tops out at 70% combined loan-to-value (CLTV, meaning all liens added together divided by the property’s value), up to $500,000, with a 700 minimum credit score. The first mortgage stays in place, and its payment does not change. The line floats, runs interest-only for five years, then fully amortizes over 25.
- Only the first mortgage’s balance counts against the ceiling. Its cost never enters the math.
- Investment lines are underwritten on you: credit, equity, and debt-to-income. A DSCR loan is underwritten on the property’s rent.
- Title must sit with you or your revocable living trust. An LLC generally cannot hold it.
- The line floats and never converts to fixed, so stress-test the payment before you sign.
- When the first mortgage leaves little room, a DSCR cash-out refinance is often the cleaner tool.
What an Investment Property HELOC Actually Is
It is a revolving line of credit secured by a rental you own. Think of a credit card with a much larger limit, backed by the property. You draw what you need, and you pay on what you have drawn.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
On the network, the line can sit in first or second lien position. Lien position is the order in which lenders get repaid if the property is sold or foreclosed. Keeping a low first mortgage means the line sits second. The new lien is recorded against the property, so your first lender can see it, but the first loan’s own terms and payment stay as they are.
Why keep the first mortgage? Because it holds an old balance on terms you may not be able to repeat. Only the new borrowing carries the line’s floating cost. A cash-out refinance would reset the entire balance to today’s terms.
Here is the catch. Few lenders write lines on rentals at all. Many large retail lenders decline non-owner-occupied collateral outright. Reapplying at the same bank rarely fixes it. The fix is changing channels: credit unions, community banks, or a broker with access to lenders that do this work.
The Terms at a Glance
This table shows the network’s investment-property line next to the same product on an owner-occupied home. The comparison shows why the occupancy label matters. Each figure is subject to lender guidelines and full file review.
| Term | Investment property | Primary residence |
|---|---|---|
| Max CLTV | 70% | Up to 90% at 720+ |
| Line size | $25,000 to $500,000 | Up to $750,000 |
| Minimum credit | 700 | Lower floors exist |
| Draw / repayment | 5-year draw, 25-year repayment | Two structures offered |
| Valuation | Automated, usually no appraisal | Full appraisal above $500,000 |
| Title | Individual or revocable trust | Same |
A few details sit behind that table. Investment is a two-tier grid: 720 and 700 both reach 70% CLTV. Credit above 700 buys you nothing extra in leverage. And 700 is a hard floor with no tier beneath it.
Because the line caps at $500,000, it falls in the automated-valuation lane. Most investment lines close without a traditional appraisal, though you can request one.
Market surveys describe a broader range for these lines: RentalRealEstate reports typical credit expectations of 720+ and maximum CLTV between 75% and 85%. That is a market-wide picture. On Lendmire’s network, an investment line stops at 70% CLTV with a 700 minimum.
How Underwriting Treats the Low First Mortgage, Step by Step
Here is the sequence a lender follows. It explains why a favorable first loan helps you less than most investors expect.
1. The lender checks collateral policy. Does it write lines on non-owner-occupied property at all? Many do not. This is the first filter.
2. The property is valued. On investment lines this is usually an automated valuation. That value is the denominator for every ratio that follows.
3. The first-mortgage balance is pulled. Only the balance matters. A smaller balance leaves more room under the ceiling. The first loan’s cost does not lower the line’s cost, and the property is not treated like a primary home.
4. The line is sized. The generic formula, as Switchwize lays it out: property value times the CLTV limit, minus the first-mortgage balance, equals the maximum line. The lender tests the full line limit, not what you plan to draw.
5. You are qualified. Credit, equity, and debt-to-income decide this. Maximum DTI is 50%, and qualification is reviewed against the interest-only payment calculated on the maximum draw. That stricter calculation catches investors by surprise.
6. Title and documents are checked. Expect a note, a recorded lien in the right position, and an occupancy and business-purpose declaration.
7. You draw. At least 75% of the line is drawn at closing. After closing, each additional draw must be at least $1,000.
Notice what is missing. Nothing in that sequence asks what the rent is. A HELOC is a bet on you and your equity.
Draw and Repayment: The 30-Year Shape
Investment lines run one structure only: a 5-year interest-only draw, then a 25-year fully amortizing repayment. Pricing floats through both phases and never converts to fixed. Primary-residence lines offer a second, shorter structure. Investment does not.
The CFPB’s HELOC booklet explains the mechanics that apply to any line. Pricing is generally variable, built from an index plus a margin. Payments can change even if you never draw again. Draw-period payments may be interest-only. When the draw ends, repayment begins.
Think about the jump. For five years you pay only interest on the balance. Then principal joins the payment, and the same balance costs meaningfully more each month. Payment shock at that transition is real. Plan for it on day one, not in year four.
Because 75% or more is drawn at closing, you carry real interest cost from the start. This is not a pay-nothing-until-needed line of credit. Treat it as a floating-cost loan with a revolving feature attached.
How Much Room Does a Low First Leave?
The ceiling is 70% CLTV, so the line equals 70% of value minus the first balance. Run it in percentages.
- First mortgage at 40% of value. There is up to 30 points of value available. On a more expensive property the $500,000 cap binds first.
- First mortgage at 60% of value. Roughly 10 points remain. The line is small, and the fixed costs of setting it up weigh more.
- First mortgage at 70% or more of value. No room. The line is not available.
Two things follow. Equity alone does not size the line. The 70% ceiling does. And a recently bought rental rarely works, because there is little equity above the purchase loan right after closing. A seasoned rental with a paid-down balance is the better collateral.
(An old, small first mortgage is the best setup for this product. A fresh, large one is the worst.)
Variations Worth Knowing
Paid-off rental. With no first mortgage, the line can sit in first position. The reason to protect the first lien disappears, and the comparison shifts to a different set of tradeoffs.
Same lender holds both liens. If the lender servicing your first mortgage also offers rental-secured lines, lien-position friction mostly vanishes. Ask them first. Lendmire’s piece Investment Property HELOC Lenders for Investors Keeping a Low First Lien covers the channels.
Trust title. An inter vivos revocable living trust can hold title. Irrevocable, blind, and land trusts cannot.
A line on your primary home, used to fund a rental. Here the collateral is the owner-occupied home. Primary-residence lines can reach 90% CLTV, and that ceiling exists only at a 720-or-better credit profile. The tradeoff is that you put your house behind a rental. Check the plan’s terms before renting out any home, because the CFPB booklet warns that renting the home may be prohibited under some plans.
Multiple lines. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on one wholesale program and $750,000 on another, and owning more than 15 financed properties makes you ineligible.
Where the General Rule Breaks
Here are the named edge cases. Each one changes what you should do.
LLC-held rentals. This is the sharpest structural difference from a DSCR loan. LLCs, corporations, and partnerships cannot hold title on these lines. A property already deeded to an LLC needs a vesting change or a different product, such as a DSCR cash-out. Retitling can affect insurance and other contracts, so treat it as a real decision, not a formality.
Property type. Eligible: single-family, 2-4 units, PUD, townhome, and condominium, including non-warrantable condos. Not eligible: manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, or agricultural zoning. A barndominium also falls outside the network’s programs.
Credit history. A bankruptcy needs four years of seasoning from discharge or dismissal. Investment files follow a 7-year seasoning path after foreclosure and 4 years after a deed-in-lieu, pre-foreclosure, or short sale.
Geography. The line is available in Lendmire’s 16 full-service states, narrower than the 41-market DSCR footprint. Listed-for-sale properties are ineligible in several states.
Business purpose. Lines on rentals are treated as business-purpose credit, and the rules differ from a standard owner-occupied loan. Under the CFPB’s Regulation Z commentary, credit to acquire, improve or maintain a non-owner-occupied rental property is deemed business-purpose regardless of the number of units. Credit for an owner-occupied rental property is different: it is deemed business-purpose only above a unit-count threshold, and smaller properties turn on a factor test, including your involvement in managing the property and your stated purpose. In practice, the lender will ask you to declare the purpose.
Why the Line Is Not a Cash-Flow Tool
A line adds a floating payment on top of your first mortgage. If the property is thin on cash, that second payment can push it negative. Benzinga’s investor-contributor piece warns that missed payments can lead to foreclosure on the rental and loss of its cash flow. It also flags negative cash flow as a primary risk.
Another cost is exit risk. A second lien must be paid off or subordinated before you refinance the first. So the line competes with the property’s own future refinance. If you may sell or refinance within the draw period, price that friction in.
Stress-test three numbers before you sign: the payment at full draw, the payment after the interest-only period ends, and the payment if the floating index moves against you. If the rental only works when everything goes right, skip it.
HELOC or DSCR Cash-Out: Which Tool Fits?
The tools answer different questions. The line asks, “Can this borrower carry the debt, with enough equity behind it?” A DSCR cash-out asks, “Does this property’s rent cover its own payment?”
| Factor | Investment HELOC | DSCR cash-out refinance |
|---|---|---|
| Underwritten on | You: credit, equity, DTI | Property rent vs. payment |
| First mortgage | Stays untouched | Replaced |
| Max leverage | 70% CLTV (investment) | About 75% LTV on standard rentals; 70% on short-term rentals |
| LLC title | Generally not allowed | Often allowed, subject to lender program eligibility |
| Size | Up to $500,000 | Up to $3,000,000 on standard programs |
| Pricing | Floats | Fixed structures available |
DSCR coverage compares rent to the full monthly obligation: principal, interest, taxes, insurance, and any association dues. Many select programs start at 1.00 coverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Clearing 1.00 does not mean positive cash flow, because repairs, vacancy, management, and utilities sit outside the calculation.
A cash-out typically wants about six months of seasoning, and your first mortgage gets replaced. That is the price of the higher leverage and the rent-based test.
Here is how to think about it. Keep the first mortgage and use the line when the balance is small, title is in your name or a trust, you need a moderate amount, and your credit is 700 or better. Move to a cash-out when the property is in an LLC, you need more than the line allows, you want a fixed structure, or the rent supports the property better than your personal profile does. Lendmire’s comparison of an investment property HELOC against a cash-out that replaces the first loan walks through that decision in more depth.
For the full picture of how rent-based financing works, see the complete DSCR loans guide.
One tax note: 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.
A Practitioner’s Read
Across the wholesale network, the pattern is consistent. Investors who succeed with this product have a small first balance, clean 700-plus credit, and a clear use for the money. Investors who struggle usually have one of three problems: LLC title, a first mortgage that eats most of the 70% ceiling, or a property that barely carries its existing debt.
A subtler trap is treating the product as a rate-comparison exercise. The first mortgage’s cost is a reason to keep it. It is not a credit toward the line’s terms. Underwriters never see it as an asset.
Common Mistakes
- Assuming any bank writes a line on a rental.
- Sizing the line off what you will draw rather than the full limit.
- Forgetting that at least 75% is drawn at closing.
- Ignoring the interest-only to amortizing jump.
- Starting the application with the property in an LLC.
- Treating the first mortgage’s favorable terms as a bargaining chip.
Key Terms Defined
CLTV (combined loan-to-value): Every loan secured by the property, added together, divided by its value.
Lien position: The order lenders get repaid. A first lien is paid before a second.
Draw period: The stretch when you can borrow and pay interest only. On investment lines here, five years.
Repayment period: The stretch after the draw ends, when principal and interest are both due. Here, 25 years.
DSCR: Debt service coverage ratio. Monthly rent divided by the full monthly obligation on the property.
Cash-out refinance: A new loan that replaces the old one and pays you the difference in cash.
Vesting: How title to the property is held, whether by you, a trust, or an entity.
Frequently Asked Questions
Does my first mortgage’s low cost improve my line’s terms?
No. Only its balance counts. A smaller balance leaves more room under the 70% CLTV ceiling, but the first loan’s cost does not lower the line’s cost.
Can I put the line in my LLC?
Generally not. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. You or your revocable living trust must be on the deed. If the property is already in an LLC, a DSCR cash-out is the usual alternative, subject to lender program eligibility.
Will I need an appraisal?
Usually not. Because investment lines cap at $500,000, they ordinarily use an automated valuation. A higher CLTV may require a secondary valuation, and you may ask for a full appraisal anyway.
What happens when the draw period ends?
Interest-only payments stop and a 25-year fully amortizing repayment starts. Pricing keeps floating throughout. The payment typically jumps at that point, so model it before you sign.
Is a line better than a cash-out refinance?
It depends on the balance, the title, and the property’s rent. A line fits a small first balance and strong personal credit. A cash-out fits LLC-held rentals, larger needs, or deals where rent carries the file.
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 is a broker that arranges financing through select lenders in its wholesale network, and all figures are subject to lender guidelines and full file review, not a commitment to lend.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
2. Switchwize: HELOC investment property
4. CFPB Regulation Z § 1026.3 and commentary
5. Benzinga: HELOCs on investment properties
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Rental HELOC Credit and Combined LTV Tiers for a First-Time Landlord · How to Cash Out on an Airbnb When the Appraiser Discounts Income · How to Decide If Refinancing an Old Rental Into a DSCR Loan Pays Off
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.