The Quick Read: You qualify by getting a home equity line approved on the house you live in, based on your credit, your income, your debts, and the equity you hold. The line sits behind your existing first mortgage, so that loan stays as it is. The line only supplies cash; a separate loan, often a DSCR loan that qualifies primarily on property-level rental income covering the payment, subject to lender guidelines, buys the rental.
- The line is underwritten on you and your home. The rental’s income does not qualify you for it.
- Through Lendmire’s wholesale network, a primary-residence line reaches 90% CLTV only at a 720-or-better credit profile.
- At least 75% of the line is drawn at closing, so size it to your actual cash need.
- The rental loan is a second approval, and its lender decides how borrowed down-payment money is documented.
- Your home secures the line, so a weak rental puts your own house at risk.
What You Are Actually Applying For
The phrase “investment property HELOC on your primary home” bundles two loans, and most confusion comes from treating them as one.
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.
The first is a home equity line of credit (HELOC) on the home you live in. A lender approves you for a credit limit based on your equity, and you borrow against it as needed. The second is the loan that buys the rental. The line does not replace that loan. It supplies the down payment, closing costs, or rehab budget.
Because the line is a separate loan recorded behind your first mortgage, you do not refinance anything. Your first mortgage keeps its balance, term, and payment. If your home has no mortgage, the line can sit in first-lien position instead.
Lendmire is a broker, not a lender. It places these lines with select wholesale partners, and every figure below is subject to lender guidelines and full file review. A line on your own home is also not the same as a line secured by the rental itself, and the two work very differently. That difference gets its own section below.
Key Terms Defined
HELOC: A home equity line of credit, a revolving credit limit secured by your home that you borrow against as needed.
CLTV: Combined loan-to-value, meaning every loan secured by the home, including your first mortgage, divided by the home’s value.
Second lien: A loan recorded behind your first mortgage, which is why the first mortgage stays untouched.
Draw period: The stretch when you can borrow from the line, usually with interest-only payments. NerdWallet notes that a repayment period follows it.
Repayment period: The later stretch when you can no longer draw and the balance pays down on a fixed schedule.
Source of funds: The paper trail showing where your down payment came from, which the purchase lender will want to see.
Prepayment penalty: A fee some investor loans charge if you pay them off early, often on a step-down schedule.
The Two Approvals You Need
You are passing two separate tests, with two separate lenders reading two different files. Clearing one says nothing about the other.
| Factor | Line on your home | Purchase loan on the rental |
|---|---|---|
| What is judged | You and your equity | The rental property’s income |
| Key test | Credit, DTI, CLTV | Rent vs. monthly payment |
| Collateral | Your primary home | The rental |
| Income docs | Personal income and debts | Lease or market rent, per program |
The line is a consumer-style approval. It looks at your credit, your income documentation, your existing debts, and how much equity remains after the new line. Rent from a property you have not bought yet generally does not offset those debts. So you need to carry your own file on its own merits.
The rental loan flips that. A DSCR loan compares the property’s rent to its monthly payment, which covers principal, interest, taxes, insurance, and any association dues. That payment is known as PITIA. Many select programs start at a 1.00 coverage ratio, and stronger ratios open better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
One caution. Clearing 1.00 does not mean the property produces positive cash flow. Repairs, vacancy, management, utilities, and capital expenses all sit outside the ratio. The line’s interest sits outside it too, and your bank account still pays it.
What Lenders Check on Your Home
Expect the lender to review the same handful of items every time. Here is how they play out across the wholesale network.
Credit. The program floor is a 600 score. The lender pulls a single-bureau score keyed to the primary wage earner, and the report can be no more than 90 days old at closing. No rescores are allowed. Housing history standards vary by program and apply across all the properties you finance.
Equity and CLTV. Ceilings depend on how the property is used and on your credit profile. On a primary-residence line, the ceiling reaches 90% CLTV, and only at a 720-or-better profile. Lower credit tiers step the ceiling down. A primary residence that is a Texas homestead caps at 80% combined loan-to-value, so the top tiers never apply there. Market-wide, NerdWallet reports that lenders cap combined loan-to-value, and many cap it below the figure above. Lendmire’s network ceiling for a primary residence stays 90% at 720 or better.
Debt-to-income. The maximum is 50%. It drops to 45% for credit profiles from 600 to 679, and anything above 45% requires a 680 minimum. The lender reviews your file on the interest-only payment calculated on the maximum draw, so an oversized line can hurt you here even if you never use all of it.
Line size. Lines run from $25,000 to $750,000. A line above $500,000 is for a primary residence only, requires a 700 credit profile or better (720 on the longer-runway structure, which is the 5-year draw with a 25-year repayment described below), caps at 75% CLTV, and requires a full appraisal.
Valuation. Lines at or below $500,000 ordinarily use an automated valuation with no traditional appraisal, though a higher CLTV may require a secondary valuation. You can request a full appraisal in any case.
Property and title. Eligible homes include single-family, 2-4 unit, PUD, townhome, and condominium, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not eligible. Title must be held by you individually or by your inter vivos revocable living trust. An LLC, corporation, partnership, or an irrevocable, blind, or land trust cannot hold title.
Past credit events. A bankruptcy needs 4 years of seasoning from discharge or dismissal. On a primary residence, foreclosure history splits by program. One program seasons a foreclosure at 7 years and a deed-in-lieu, pre-foreclosure, or short sale at 4. The other declines that history regardless of age.
How to Size Your Line
Start with one formula: home value times your CLTV ceiling, minus your first mortgage balance. That result is the most the line can be, before the dollar caps and the DTI test.
Run it in percentages. Say your first mortgage equals 55% of your home’s value and you qualify at the 90% ceiling. You have up to 35% of the home’s value available. If your first mortgage equals 75% of value, you have 15% at most. If the home is paid off, the ceiling is the whole story, subject to the line size caps above.
Now compare that to what the rental needs. On a DSCR purchase, most files land at 75%-80% LTV, which means 20%-25% down. A select program reaches 85% LTV with a score around 700 or better. Add closing costs. Then add reserves, commonly around 6 months of PITIA, though they vary by lender, leverage, and loan size. Rental financing sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders).
The line should cover the sum of those items, and no more. At least 75% of the line is drawn at closing, and pricing floats on the drawn balance. Opening a line far bigger than you need means paying interest on cash you do not use and a worse DTI test. Size it to the plan.
How the Purchase Lender Treats the Money
Borrowed down-payment money is accepted by many lenders, but it needs a clear trail. Plan to show the line’s draw landing in your account and then moving into closing. Practitioners across the network generally see a HELOC treated as an acceptable source for the down payment. Policy still varies by lender and program, so confirm with the rental lender before you draw.
Reserves are a separate question. Some lenders want reserves in verified cash or accounts that are not borrowed, and others are looser. Ask directly whether borrowed funds can count toward reserves on the specific program.
Say you plan to open the line first. Tell the purchase lender up front that the line is the source of funds. Surprises in the paper trail cause more delays than the line itself.
Draw the cash into a separate account and keep every transfer traceable.
Three Ways to Structure It
You have more than one path. Each puts a different asset at risk.
| Structure | Collateral at risk | Tradeoff |
|---|---|---|
| Line on home + DSCR purchase | Home and rental | Keeps first mortgage; home exposed |
| Cash purchase, later cash-out refi | Rental only | Needs cash now; refi later |
| Line secured by the rental | The rental | 70% CLTV cap; $500,000 line limit |
The third is a different product. An investment-property line runs up to 70% CLTV, requires a 700 minimum credit score, and tops out at $500,000. It follows the 5-year draw and 25-year repayment structure only. Credit above 700 buys eligibility, not extra leverage, because 720 and 700 both reach 70%. The advantage is that your home is not the collateral. The cost is a lower ceiling and a smaller line.
The second path works for investors who have the cash. Buy the rental outright, then refinance with a cash-out loan after the property is seasoned. A cash-out refinance tops out around 75% LTV across most of the network on a standard rental, and about 6 months of seasoning is the common expectation. Short-term rental collateral steps down to 70% on cash-out. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
Draw Structures and What They Mean
On a primary residence or second home, two draw structures exist. The 3-year structure is a 3-year interest-only draw followed by a 17-year amortizing repayment. Tennessee shortens both, to 3 years and 12 years, and 5 years and 10 years. Investment lines run the 5-year draw and 25-year repayment structure only.
Pricing floats through both the draw and the repayment period and never converts to a fixed figure. Some plans elsewhere let you convert part of the balance to a fixed amount, as the CFPB explains. That option is not part of these structures.
Because the line floats, model it as a variable cost. The CFPB’s HELOC booklet also warns that a balloon payment you cannot make could cost you your home. The structures above amortize, which limits that risk, but a variable payment still moves.
After closing, each additional draw has a $1,000 minimum on the longer-runway structure, except in Texas, where the minimum is $4,000.
Can You Carry All Three Payments?
You will hold a first mortgage, the line, and the rental loan at once. Stress-test the plan before you commit.
Start with the DSCR coverage on the rental. Then check your own cash flow, not just the ratio. The ratio ignores the line’s interest, and your bank account does not.
Run these three failure cases.
- A vacant rental. Rent stops, but the rental loan and the line interest keep coming. Count how many months your reserves cover both.
- A floating line. If the index moves up, your line payment moves with it. Test the plan at a worse number than today’s.
- A deal that falls through. With at least 75% of the line drawn at closing, you could be holding borrowed cash and paying interest while the purchase collapses. Do not open the line and draw until the contract is solid.
Lenders can also reduce or freeze a line if your home’s value falls, according to standard HELOC agreements. Do not count on unused line capacity as your emergency reserve.
Where the General Rule Breaks
Several situations change the answer.
Your home is deeded to an LLC. The line requires an individual or revocable trust as owner. A property already deeded to an LLC needs a vesting change first, or a DSCR cash-out refinance instead.
You own a lot of financed property. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. A borrower owning more than 15 financed properties is not eligible.
Your DTI is already high. Because the line is qualified on a maximum-draw interest-only payment, a heavy debt load can stop you at the first gate. The DSCR loan does not need your personal DTI the same way, which is why some investors with high DTI use a DSCR loan for the rental.
You are in the wrong state. The line is available only in Lendmire’s 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. That is narrower than the 41-market DSCR footprint. A property listed for sale, or listed within the past 60 days, is ineligible in NC, PA, TN, TX, and WA. New Mexico and Ohio apply a CLTV cap that depends on the credit profile.
Your rental is an unusual property type. DSCR financing is not offered on manufactured homes, log homes, or barndominiums.
You plan to hold the line long term. A line is better as a short bridge than as permanent debt. It works best when you plan a way out, such as a cash-out refinance after the property is seasoned. Some DSCR loans also carry a step-down prepayment penalty, which can make an early refinance costly. Ask about it before you buy.
When a Refinance Fits Better
Keep the first mortgage if it carries terms you could not replace today. That is the strongest reason to use a line.
Consider a cash-out refinance instead if your first mortgage terms are not special, if you want one payment instead of two, or if you need a large amount that the line caps cannot supply. A line above $500,000 caps at 75% CLTV and requires a full appraisal. The tradeoff is that a refinance replaces everything, not just adds to it.
For a full view of how the rental loan side works, read Lendmire’s complete DSCR loans guide.
The Step-by-Step Path
1. Calculate your equity and CLTV using your best value estimate.
2. Check your credit, your DTI, and the title on your home.
3. Choose a line size that matches your actual cash need, not the maximum.
4. Open the line before you go under contract, not after.
5. Talk to the rental lender about source of funds before you draw.
6. Draw into a separate account and keep the transfer trail clean.
7. Close the rental loan and track the combined payments.
8. Plan the exit, whether that is a cash-out refinance, a sale, or paydown.
Your Next Step
If you are weighing a home equity line against a cash-out refinance 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. Any illustrative calculator on the site is an estimate only, not a quote.
Frequently Asked Questions
Do I have to refinance my first mortgage to get this line?
No. The line is a separate loan recorded behind your first mortgage, or in first position if the home is paid off. Your existing first mortgage keeps its balance, term, and payment. Approval still depends on your credit, DTI, and equity, subject to lender guidelines.
Can the HELOC money be my down payment on a rental?
Often yes, but it depends on the purchase lender. Many lenders accept a line as a down-payment source when the draw is traced into closing. Confirm that policy before you draw, and ask separately whether borrowed funds count toward reserves.
What credit score do I need?
The network floor is 600 for a line on a primary residence. Higher scores open higher leverage, and 90% CLTV is available only at 720 or better. A line above $500,000 requires 700 or better (720 on the longer-runway structure). A line secured by an investment property requires 700.
Does rental income help me qualify for the line?
Generally no. The line is underwritten on your personal credit, income, and debts. Rent from a property you have not bought yet typically does not offset your DTI. The rental’s income matters for the separate purchase loan.
What if the rental sits empty?
You still owe the rental loan and the line interest. Your home secures the line, so a long vacancy puts your own house at risk. Run a vacancy stress test and keep reserves before you draw.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
Investors who want the broader program framework can review how DSCR loans work.
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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. NerdWallet
2. CFPB
3. CFPB – What You Should Know About HELOCs booklet
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Banks That Offer an Investment Property HELOC on a Rental You Just Bought · Best Investment Property HELOC Program for the Down Payment on a Construction Loan · How to Qualify for an Investment Property HELOC Before Your Return Is Filed
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.