The Quick Read: It depends on two limits, and the lower one wins. One is the most the line allows against the rental that secures it. The other is how much borrowed money the short-term rental purchase lender will accept as your down payment.
- On a second lien (a line sitting behind your existing mortgage), the ceiling is 70% combined loan-to-value, with lines from $50,000 to $500,000 at a 720 credit score or better, subject to underwriting.
- On a rental with no mortgage, a first-lien line reaches 75% loan-to-value at 740 or better, and 70% from 700 to 739, on lines to $500,000.
- The line is secured by a rental you already own. It is never closed with the purchase and never sits on the property you are buying.
- Some purchase lenders accept a fully borrowed down payment, some cap the borrowed share, and some want part of it unborrowed. Ask before you draw. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Two Approvals, Two Properties
The line and the purchase loan are separate files on separate properties. Each is judged on its own terms, and approval of one says nothing about the other.
| Item | DSCR HELOC | Short-term rental purchase loan |
|---|---|---|
| Collateral | A rental you already own | The rental you are buying |
| Judged on | That rental’s rent and your credit | The new property’s income |
| Closes | First, with the draw made | Second, using the drawn cash |
| Who decides | The line’s lender | The purchase lender |
DSCR stands for debt service coverage ratio: the rent compared with the monthly debt payment. Both loans are business-purpose, investor products. The line qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. That means no traditional personal-income documentation, W-2s or personal income calculation. The line’s lender still pulls your credit, orders a valuation and reads your lease.
That is the whole logic of the strategy. You use the equity in one rental to supply cash for the next. The leftover question is how big the draw can be.
Key Terms Defined
HELOC: a home equity line of credit, a revolving line you borrow against and repay over time, secured by property you own.
Lien: a lender’s legal claim on a property. A second lien ranks behind your first mortgage. A first lien has no mortgage ahead of it.
CLTV: combined loan-to-value, which is your first mortgage balance plus the new line, divided by the property’s value.
Draw period: the stretch when you can borrow from the line and pay interest only on what you have drawn.
Seasoning: the waiting period a lender wants after you buy or refinance a property.
How Big Can the Line Be on a Rental With a Mortgage?
On a rental with a first mortgage, the ceiling is 70% CLTV at a 720 score or better, on lines from $50,000 to $500,000. The formula is the property’s value times the allowed CLTV, minus what you already owe. For most owners, the CLTV math binds long before the $500,000 cap does.
Run it in percentages. Say your rental has a first mortgage equal to 50% of its value. At 70% CLTV, the line can reach about 20% of the property’s value. If that rental is worth roughly what you plan to pay for the short-term rental, the line equals about 20% of the purchase price. That is a limit you can plan around, not a surprise at closing. Lenders set these limits by property type and score, so treat the numbers as ceilings, never offers.
For context, home-equity guides commonly describe 80% to 85% combined loan-to-value on a primary residence. A rental is a different risk, and the DSCR HELOC is never offered on an owner-occupied home. On a rental, the network ceiling on a second lien is 70% CLTV.
What If the Rental Has No Mortgage?
A paid-off rental can carry a standalone first-lien line, and the ceilings are higher. A borrower who keeps a first mortgage can only take a second lien, so a first lien exists only on a rental with no mortgage.
| Lien | Credit score | Ceiling | Line size |
|---|---|---|---|
| Second lien | 720 or better | 70% CLTV | $50,000 to $500,000 |
| First lien | 740 or better | 75% LTV | To $500,000 |
| First lien | 700 to 739 | 70% LTV | To $500,000 |
| First lien | 720 or better | 65% LTV | Above $500,000, to $1,000,000 |
All figures are subject to underwriting. A declining-market flag on the property lowers the ceiling by 5 points. The score is the lender’s own credit report, and the file also checks mortgage history: no 30-day late in the last 12 months, and 48 months since a bankruptcy, foreclosure, short sale or deed-in-lieu.
Does the Line Work for Your Rental?
The line is sized on the collateral, so the collateral has to qualify. These points decide it:
- Coverage: the rent must reach a 1.10x DSCR against a stress payment. That payment is a fully amortizing principal-and-interest payment on the entire credit limit at a stress rate above the start rate. Taxes and insurance are not part of it.
- Rent used: rent is the lesser of the appraisal’s market rent and the lease, unless three months of receipts support a lease above market.
- Lease: a lease must be in place. A two-to-four-unit property may have at most one vacant unit. If the collateral is itself run as a nightly rental, confirm with the lender how it treats the lease.
- Ownership: a rental bought or refinanced inside the last 6 months is not eligible (that clock runs from the last note date to the new note date), and the owner must have held title for 6 months (settlement date to note date).
- Valuation: lines to $400,000 use an automated valuation with a property inspection report, or a full interior appraisal. Larger lines take a full interior appraisal. Appraisal waivers are not accepted.
- Title: the LLC can stay on title, and members sign as guarantors, per program requirements.
- Property: single-family, PUD, townhome, two-to-four units and condominiums are eligible. Rural property, condotels, row homes and leaseholds are outside the program.
- Borrowers: U.S. citizens, permanent residents, and non-permanent residents with a Social Security number. Foreign nationals and ITIN borrowers are not eligible.
- Exposure: the program allows at most 5 loans or $2,500,000 per borrower. No reserves are required on the line.
The program is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee. The complete DSCR loans guide covers how the core product works if you are earlier in the process.
How the Draw Rules Shape the Size
The draw rules affect how much to ask for. At least 80% of the line is drawn at closing, and the closing draw is never less than $50,000. On the smallest lines, that means the whole line is drawn at closing. Later draws are at least $5,000 each.
So size the line to the cash you need, not to the biggest number the equity allows. Interest runs on the drawn balance, so a large line drawn mostly at closing starts costing you before you have a contract. The draw period is 5 years interest-only, followed by a 25-year repayment period, with a 30-year maturity. The line carries a variable rate, so the payment can rise after the draw period ends or when the rate moves.
Will the Purchase Lender Accept Borrowed Down Payment Money?
This is the gate that decides the plan. DSCR purchase programs fall into three camps on borrowed funds. A plan built on a 100% borrowed down payment can stall if you land in the wrong camp.
Ask the purchase lender four things before you draw:
1. Do you accept funds from a home equity line secured by another property?
2. Is there a cap on the borrowed share?
3. Do borrowed funds count toward closing costs or reserves?
4. How do you want the money documented?
Three buckets are tested separately: the down payment, closing costs and reserves. Many programs accept borrowed funds for the first two, with documentation, but often exclude them from reserves. The same dollars generally cannot count twice. An undrawn line is permission to borrow, not cash, so lenders do not count it as reserves.
Expect to show the line’s closing documents, the draw confirmation and the transfer into escrow. Unsecured borrowing, like a credit-card advance, is generally not an acceptable source.
How Much Down Does the Short-Term Rental Need?
The purchase lender sets that percentage, and short-term rental purchases often ask for more down than a long-term rental. Closing costs and any reserve requirement come on top. Your HELOC draw has to cover whichever of those the lender allows borrowed money to cover.
Income documentation also differs. Short-term rental programs commonly look at an appraiser’s short-term rental analysis, a 12-month management statement, 12 months of bank statements, or a projection from a data service such as AirDNA on a purchase. A standard single-family rent schedule (Form 1007) is built for long-term rent. Class Valuation, an appraisal firm, explains that it cannot support short-term rental income, so the file needs a separate narrative addendum.
Two ceilings can apply here. The appraisal sets a leverage ceiling. The lender’s counted rent sets a coverage ceiling. If the lender counts less rent than you hoped, the coverage ceiling can fall below the leverage ceiling, and the lower one binds. 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.
What the Line’s Payment Does to Your Cash Flow
The line’s payment usually sits outside the purchase loan’s DSCR ratio, but your bank account still feels it. You end up with two payments against one stream of rent. The purchase loan’s coverage ratio can look healthy while your actual monthly margin is thin.
Test it before you commit. Can the short-term rental’s cash flow service both its own mortgage and the line’s payment, including in a slow season? Then stress it. Have a plan to pay the balance down.
Risk also sits in the collateral. A HELOC is secured by property, and the CFPB explains that falling behind can cost you the property. It also notes that a lender may stop further draws if the value drops significantly. The FTC adds that a lender can foreclose if you don’t repay as agreed. With a line on a rental you keep, that risk attaches to a property already producing your income.
The Timeline, in Order
1. Confirm your collateral rental is eligible: owned long enough, leased, not on the excluded list.
2. Ask the purchase lender how it treats borrowed funds in each bucket.
3. Size the line to the cash need, remembering the draw rules.
4. Close the line and take the draw. The line closes first and never together with the purchase.
5. Move the funds with a clean paper trail into escrow.
6. Close the purchase on the short-term rental’s own income.
When to Skip the Line
Skip it when the equity is thin, the rent is below 1.10x against the stress payment, or the collateral falls outside the program. Skip it too if the purchase lender rejects borrowed funds. The same goes for a purchase whose cash flow cannot carry two payments.
Alternatives include cash, a partner, or a refinance of the rental you own. Lendmire’s guide How to Qualify for a Bank Statement HELOC for a Short-Term Rental, No Down Payment explains what that path takes. The line does not create a zero-down option. It only changes where the cash comes from.
Frequently Asked Questions
What is the most I can borrow on a DSCR HELOC?
On a second lien, the ceiling is 70% CLTV at a 720 score or better, up to $500,000. On a first lien it runs 75% LTV at 740 or better, and 70% from 700 to 739, to $500,000. Above $500,000, the first-lien ceiling is 65% LTV, to $1,000,000. All figures are subject to underwriting. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
Can the HELOC be my entire down payment?
Only if the purchase lender allows it. Ask the purchase lender first.
Can the line sit on the short-term rental I am buying?
No. The line closes and is drawn before the purchase, and it is secured by a rental you already own. It is never closed together with a purchase. A standalone first or second lien on a different property supplies the cash.
How long must I own the rental before opening the line?
Two six-month clocks apply. The property cannot have been bought or refinanced in the last 6 months, counting from the last note date to the new note date, and you must have held title for 6 months, counting from settlement to the note date.
Does the line’s payment lower my purchase loan’s DSCR?
It generally sits outside the DSCR ratio the purchase lender calculates, so the ratio itself may not change. Your monthly cash flow does. Treat both payments as real, and run a slow-season case before you draw.
If you are considering a home equity line on a rental property and want to see how the numbers work, Lendmire can help you compare DSCR HELOC options based on the property, the rent, the equity available, credit profile, combined leverage, and your goals. Lendmire is a broker that arranges the line through a wholesale lender in its network. It is not a commitment to lend, and every file is underwritten individually.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage serving landlords and real estate investors in 16 licensed states. DSCR home equity lines of credit on non-owner-occupied one-to-four-unit rentals are arranged through wholesale lending channels in 15 of those states (every licensed state except Tennessee); Lendmire brokers the line and the lender underwrites each application on the property’s rent, credit and leverage. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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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. Forbes Advisor – HELOC calculator
4. FTC – Home Equity Loans and Home Equity Lines of Credit
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much Can You Borrow on a DSCR HELOC on a Rental That Still Has a First Mortgage? · How Much Can You Borrow on a DSCR HELOC as a Trucker With Equipment Costs? · DSCR HELOC Requirements on a Rental for Turned-Down Landlords
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.