The Quick Read: The cash a line of credit raises on a second home equals the lender’s combined-loan cap on the home’s value, minus what you already owe, and on our network that cap runs from 75% to 90% of value depending on credit, with 90% available only at a 720 score or better. That cash can then fund the down payment on your next rental. The rental’s own lender still sets how much down it wants.
- A second-home line tops out at $500,000 and needs a 640 credit score at minimum.
- Combined loan-to-value (CLTV) of 90% on a second home requires a 720 score. A 640 profile tops out at 75%.
- A line against an investment property is capped at 70% CLTV.
- A DSCR purchase typically asks for 20%-25% down, and select high-leverage programs reach 15% down.
- A line that is approved does not waive the purchase loan’s down payment, reserve, or credit rules.
What Does a HELOC Actually Raise?
A home equity line of credit (HELOC) raises the difference between what the lender lets you owe in total and what you owe today. The lender takes the home’s value, multiplies it by its maximum CLTV, and subtracts every existing lien. Experian’s HELOC sizing guide lays out the same formula.
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.
Here is the plain version. Say a second home is worth 100 units and carries a mortgage of 50 units. A lender with a 75% cap lets total debt reach 75 units. The line can therefore raise at most 25 units, or 25% of the home’s value.
Credit, income, and debt ratios can pull the final number below that ceiling. The line can also be limited by a program dollar cap. The amount you actually get is the smallest of those three.
Two things make this different from a plain equity calculator. First, the line sits on a property you own, so the property you are buying is a separate approval. Second, on our network at least 75% of the line is drawn at closing. You cannot open a large line and leave it mostly untouched as a safety cushion.
Which Home Do You Borrow Against?
You can borrow against your primary home, a second home, or a rental you already own. The ceiling changes with the occupancy, and so does the tier you are in. Across our wholesale network, occupancy sets the maximum more than almost anything else on the file.
| Collateral | Max CLTV | Credit needed |
|---|---|---|
| Second home, top tier | 90% | 720+ |
| Second home, middle tiers | 85% | 680+ |
| Second home, 660 tier | 80% | 660+ |
| Second home, entry tier | 75% | 640+ |
| Investment property | 70% | 700 minimum |
Every second-home tier carries a $500,000 maximum line. A primary-residence line can run larger, but that is a different conversation.
Some market-wide surveys report CLTV limits near 85% for home equity lines in general, with a few lenders going higher. Those are broad market figures. On our network, a second-home line reaches 90% only at 720 or better, and an investment-property line stops at 70%.
Lien position also matters. The line can be a first or second lien. If the home has a mortgage, the line sits behind it, and the CFPB describes a HELOC on a mortgaged home as a second mortgage paid on top of the first. If the second home has no mortgage at all, the whole CLTV allowance is available to the line.
Properties must also be eligible. Single-family homes, 2-4 units, townhomes, PUDs, and condominiums (including non-warrantable ones) qualify. Manufactured homes, co-ops, condotels, log homes, and commercial, mixed-use, or agricultural-zoned properties do not.
From Line Size to Down Payment: Three Worked Scenarios
These are modeled assumptions, not market data. In each case, the collateral is worth about the same as the property being bought, so the percentages line up directly. They also ignore the credit, income, and dollar-cap limits described above.
| Scenario | Max CLTV | Owed on collateral | Line raises | Purchase LTV | Down needed |
|---|---|---|---|---|---|
| A: second home, 640+ | 75% | 50% of value | 25% | 75% | 25% |
| B: second home, 720+ | 90% | 60% of value | 30% | 80% | 20% |
| C: rental, 700+ | 70% | 55% of value | 15% | 85% | 15% |
Scenario A: The line covers the whole 25% down payment and leaves nothing for closing costs or reserves. Those come out of your savings. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
Scenario B: The line covers the 20% down payment and leaves 10% of value of unused room. Because at least 75% of the line is drawn at closing, taking the full line is the normal structure. That extra cash can cover reserves and closing costs. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
Scenario C: This one barely works. An 85% LTV purchase is a select high-leverage tier that generally wants about a 700 score or better, and the rental collateral line also needs 700 at minimum. The line covers the 15% down payment and nothing more. The new property would also need strong rental coverage.
Run the translation yourself with this formula: line as a share of the collateral’s value, divided by the new price as a share of that value. The calculator on this page can convert any of these percentages into dollars as an illustrative estimate.
What the DSCR Lender Does With Borrowed Down Payment Funds
Most DSCR purchase programs we place files with accept a documented HELOC draw as a source of down payment funds. They want a paper trail: the line statement, the draw, and the deposit into your account. One practitioner guide says lenders generally verify where the money came from rather than ban the source outright.
Treatment still varies by program. Some programs limit how much of the down payment can be borrowed. Some want a minimum amount of your own money in the deal. Others treat down payment, closing costs, and reserves as separate pots. Ask the lender before you draw, because a draw you cannot reverse is a bad way to learn the rule.
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 purchase side works on most files:
- Purchase leverage: most land at 75%-80% LTV, meaning 20%-25% down. Select high-leverage programs reach 85% LTV (15% down) with roughly a 700+ score.
- Coverage: 1.00 is where many select programs start, and a stronger ratio can open better pricing and leverage. A separate select-lender path takes coverage 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 leverage tiers.
- Reserves: commonly around six months of PITIA, but they vary by lender, leverage, loan size, and transaction type.
PITIA is principal, interest, taxes, insurance, and association dues. A larger down payment lowers the monthly payment and can lift the coverage ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility. For the full program picture, see the complete DSCR loans guide. For how to document where the cash came from, see Lendmire’s piece How to Source a Down Payment on a Second-Home Bank Statement Loan.
The Two Tests: Equity and Rental Coverage
The strongest files clear two separate tests. The first is the HELOC test: enough equity, enough credit, and a debt ratio the line lender accepts. The second is the DSCR test: enough rent against the new property’s PITIA.
Those tests do not borrow from each other. A great rental ratio does not enlarge the line. A big line does not fix thin rent coverage.
Clearing 1.00 on coverage also is not the same as positive cash flow. The DSCR compares rent to PITIA only. Repairs, vacancy, management, utilities, and capital expenses all sit outside the calculation. An investor can pass the DSCR test and still feel real strain in a bad month.
The Debt Stack Behind the Line
You will carry three obligations at once: the first mortgage, the line, and the new loan. The line lender’s debt-to-income (DTI) test is the one that hurts here. Our network’s HELOC programs generally cap DTI at 50%, and at 45% for credit profiles from 600 to 679. Anything above 45% needs a 680 minimum.
The line lender reviews your file on the interest-only payment calculated on the maximum draw. That means the test assumes you take the whole line, even if you plan not to. The DSCR loan generally does not run the line’s payment through the coverage ratio. Some DSCR lenders still look at it when they review your overall debts.
The line is also variable in cost. The CFPB’s HELOC booklet notes that these lines typically carry changing costs, and pricing on our network lines floats through both the draw and repayment periods and never converts to fixed. Two draw structures exist on primary residences and second homes. One has a 3-year interest-only draw with a 17-year fully amortizing repayment. The other has a 5-year draw with a 25-year repayment. Investment lines use only the 5-year draw and 25-year repayment. The interest-only draw can hide the real cost until amortization starts.
Where the General Rule Breaks
The formula above is a clean answer. These edge cases are where files go sideways.
An LLC cannot hold title. The line must be held by an individual borrower or an inter vivos 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, or a DSCR cash-out refinance instead.
Listed properties are out in some states. A property listed for sale, or listed within the past 60 days, is ineligible in Indiana, North Carolina, Pennsylvania, Tennessee, Texas, and Washington.
A line can freeze. The CFPB notes that a lender may block further draws if the home’s value drops significantly or your finances change. A line is available credit, not cash in the bank.
Exposure limits apply. A borrower is limited to three lines on our network. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. A borrower with more than 15 financed properties is not eligible.
Valuation can add a step. Lines at or below $500,000 ordinarily use an automated valuation, though a higher CLTV may require a secondary valuation. A borrower can also request a full appraisal.
A fully borrowed down payment can fail on its own. Some DSCR programs want a meaningful amount of your own funds in the deal. Check this before you draw.
Credit history can block you. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure history splits by program, with one seasoning a foreclosure at 7 years and a deed-in-lieu, pre-foreclosure, or short sale at 4, and the other declining it regardless of age.
Not every property is eligible on the DSCR side. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered in the DSCR network.
Alternatives to Pulling a Line
A HELOC is one of several ways to fund the cash. Which one fits depends on how much equity you have, what you are willing to pledge, and how much you want in monthly obligations.
| Option | Collateral at risk | Adds a new lien? |
|---|---|---|
| HELOC on primary or second home | That home | Yes |
| HELOC on a rental | The rental | Yes |
| DSCR cash-out on a seasoned rental | The rental | Replaces the old loan |
| Savings or sale proceeds | None | No |
A DSCR cash-out refinance on a standard rental tops out around 75% LTV across most of the network, and about six months of seasoning is the common expectation. The same cash-out on short-term rental collateral tops out at 70%. A cash-out avoids a second lien on your own home, but it changes the terms of the loan you already have. Prepayment penalties on that loan can matter. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
A bridge line on the home you are leaving is a related play. Lendmire’s piece How Much Down Payment a HELOC Bridge Raises on Your Current Home covers that case.
How the Decision Plays Out in Practice
Start with the purchase, not the line. Decide the leverage you want on the new property, usually 20%-25% down, and work backward to the cash needed. Add closing costs and reserves on top.
Then size the line. Pick the collateral, find your credit tier, and run the CLTV math. If the number leaves you short, the choice is lower leverage, more savings, a different collateral property, or a smaller purchase.
Finally, stress-test the stack. Ask whether you could carry the first mortgage, the line, and the new loan during a long vacancy. The line’s interest-only draw eases the early months, and the amortizing repayment period then raises the payment. Several lenders in the network recommend having a plan to pay down the line from rents or a refinance. Yahoo Finance’s coverage of HELOC down payments says the same.
Our HELOC placements are available only in our 16 full-service states: Alabama, California, Colorado, Florida, Georgia, Indiana, Michigan, Montana, New Mexico, North Carolina, Ohio, Pennsylvania, Tennessee, Texas, Virginia, and Washington. That is narrower than our DSCR footprint of 41 markets, including Washington, D.C. A few states also carry their own rules, so a file’s details matter.
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.
Key Terms Defined
CLTV (combined loan-to-value): All loans secured by a property, added together and divided by its value.
LTV (loan-to-value): One loan divided by the property’s value, which sets how much down payment a purchase needs.
Draw period: The window when you can borrow from the line, usually interest-only on our network programs.
Lien position: Where a loan stands in line to be repaid from the property if things go wrong; a first lien is paid before a second.
PITIA: Principal, interest, taxes, insurance, and association dues, the full monthly cost used in the DSCR calculation.
DSCR (debt service coverage ratio): Monthly rent divided by PITIA, a test of whether the property’s income covers its own payment.
Source of funds: The documented origin of the cash used for a down payment.
Frequently Asked Questions
Can a HELOC cover my whole down payment on a rental?
Sometimes, but it depends on the purchase lender’s program. Many DSCR programs accept documented HELOC draws, and some limit how much of the down payment can be borrowed or want a set amount of your own funds. Ask before you draw, because the line approval does not guarantee the purchase lender will accept the money.
How much can I raise against a second home I already own?
Take the home’s value, multiply by the CLTV cap for your credit tier, and subtract what you owe. On our network the second-home cap is 75% at a 640 score and rises to 90% only at 720 or better. The line is limited to $500,000.
Does the HELOC payment count against my DSCR?
Generally it does not, because DSCR compares rent to the new property’s PITIA. Some lenders still look at the line when they review your overall debts. Separately, the line lender tests your DTI on the interest-only payment at the maximum draw.
Can I take the line against a rental held in an LLC?
Not directly. Title must be held by an individual borrower or an inter vivos revocable living trust.
What happens if the lender freezes my line before I close?
You lose access to the undrawn balance. Lenders can block further draws if the home’s value drops significantly or your finances change. Drawing and documenting the funds well before the offer date reduces that risk.
If You Are Considering a Home Equity Line
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 every figure here is subject to lender guidelines and full file review.
The investors who handle this best treat the line as a tool for funding the gap, not a substitute for a down payment the next lender still expects.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Experian – How much can you borrow with a HELOC
3. Financedevil – HELOC for a second home or investment property down payment
5. Yahoo Finance – Can you use a HELOC for a down payment?
This article is part of Lendmire’s home equity line of credit program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much Down Payment a HELOC Bridge Raises on Your Current Home · How to Use Home Equity to Fund a Rental or BRRRR Down Payment · How a HELOC Lender Sets the Credit Limit on a Second Home
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.