Using a HELOC for a Down Payment on a Second Home or Rental
You can use a HELOC for a down payment on a second home or rental. Borrowing against your primary home usually beats the new property on both rate and size.
Yes, you can use a HELOC for the down payment on a second home or rental. For most buyers the smarter source is a line against the home you already live in, not the property you’re buying against. Buying a $400,000 rental that needs $100,000 down:
- HELOC on your primary home (80–85% CLTV, ~7.47%): the full $100,000 is realistic, around $623/mo interest-only
- HELOC on the rental (70–75% CLTV, ~7.25–8.75%): a smaller line, a higher rate, and a much shorter list of lenders
- Why: the down-payment penalties attach to the investment property; your primary residence carries neither
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TL;DR: A HELOC can fund the down payment on your next property, and where you draw it from matters more than the fact that you’re borrowing. A line against your primary residence carries a higher loan-to-value ceiling (80–85% vs. 70–75%) and the lower owner-occupied rate (about 7.47% vs. roughly 7.25–8.75% on a rental), so the same equity produces a bigger and cheaper line than borrowing against the property you’re buying against. Qualify on the repayment payment, keep your reserves intact, and have a payoff plan before you leverage one home to buy another.
Real-estate buyers keep arriving at the same fork: you have equity, you need a down payment, and you can pull it from more than one place. The instinct is to borrow against whatever property is tied to the purchase. The numbers usually point the other way. This page walks the down-payment decision, the worked cost of both routes, and the guardrails that keep a leveraged purchase from becoming a forced sale. It sits in HelocPilot’s use-case guides; for the instrument itself, start with how a HELOC works, and for the full picture on borrowing against a rental, see HELOC on an investment property, the lenders who write these lines, and qualifying a rental on its cash flow.
Can you use a HELOC for a down payment?
You can. A HELOC hands you cash secured by your home, and lenders almost never dictate how a draw gets spent, so putting it toward a down payment on another property is a routine, accepted use. The question worth your attention isn’t permission. It’s which property you borrow against, and whether the payment still works once the line moves from its cheap interest-only phase into full repayment. Both answers tend to favor the house you live in.
Should you borrow against your primary home or the property you’re buying?
This is where the decision is actually won. The two penalties that make investment-property borrowing expensive both attach to the rental: a lower combined loan-to-value cap, usually 70–75% against 80–85% on an owner-occupied home, and a rate premium of roughly prime + 0.5% to prime + 2%. Your primary residence sidesteps both. Run the same $100,000 down payment through each source:
| HELOC on your primary home | HELOC on the investment property | |
|---|---|---|
| Typical max CLTV | 80–85% | 70–75% |
| Rate (June 2026) | ~7.47% | ~7.25%–8.75% (prime + 0.5–2%) |
| Room from $250k of equity | Higher — the 80% cap frees more | Lower — the 70% cap frees less |
| Lender availability | Most HELOC lenders | ~15–20% of lenders |
| Interest-only cost on $100k | ~$623/mo (@ 7.47%) | ~$688/mo (@ 8.25%) |
Same borrower, same purchase, and the primary-home line is both larger and cheaper. That is why the classic investor move to fund a down payment is a HELOC on the house you live in, funding the purchase, rather than a HELOC on the rental. Prime sits at 6.75% as of June 2026, and the 7.47% figure is Bankrate’s June 2026 national average for owner-occupied lines.
Borrowing against the rental still makes sense in specific cases: when you want your home’s equity left completely alone, when the rental holds the equity and your residence doesn’t, or when keeping the debt attached to the investment property matters for your accounting. The deciding factor is which property’s equity you’re willing to encumber and at what price, not where the cash happens to sit today.
What will the payment actually be?
The interest-only figure in the table is the draw-period payment, and it is not the number to budget around. A HELOC runs interest-only during the draw period, then converts to a fully amortizing payment over the repayment term. On $100,000 at 7.47%, interest-only runs about $623 a month; once it amortizes over 20 years, the payment climbs into the four figures. Because the rate is variable and moves with the Fed, model the repayment payment at today’s rate and again a point or two higher before you commit. Run both in the HELOC payment calculator, and if you’re weighing this against pulling cash through a refinance, the HELOC vs. cash-out comparison is the right tool.
When is a HELOC down payment the wrong move?
The strategy has three failure points, and all three are avoidable.
The first is leverage stacked on leverage with no exit. Using a variable HELOC to make a down payment on a property that also carries new mortgage debt means a rate increase hits you in two places at once. Investors who do this well treat the HELOC as a bridge with a defined plan to refinance or pay it down inside a year or two, not as permanent financing.
The second is spending your reserves. Lenders want to see 6–12 months of payments across all your properties after closing, and that buffer is what carries you through a vacancy or a repair. Borrowing the down payment and emptying the reserve account removes the cushion exactly when you’ve added risk.
The third is a payment that only works on paper today. If the deal pencils at the current rate but goes underwater one or two points higher, the market will eventually test it. Size the borrowing to a stressed rate, against income and reserves you actually hold, and the down-payment HELOC becomes a tool rather than a trap.
Rates and CLTV caps cited are national averages or representative ranges as of June 2026 and change frequently; your offered rate and line depend on your credit, equity, property, and lender, and investment-property terms are confirmed only by applying. HelocPilot is a marketing and editorial publisher, not a lender, broker, or loan originator, and earns no compensation from any lender named here. This is general information, not legal, tax, or financial advice or a recommendation of any specific transaction; consult a licensed professional, and a CPA on tax questions, about your situation.
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Frequently asked questions
Can you use a HELOC for a down payment on an investment property?
Yes. A HELOC is cash secured by your home, and lenders rarely restrict how you spend a draw, so using it to make a down payment on another property is common and accepted. The real decision is which home you borrow against. Tapping your primary residence gives you a higher loan-to-value ceiling (80–85% vs. 70–75% on a rental) and the lower owner-occupied rate, so it usually produces a bigger, cheaper line than borrowing against the property you're buying against.
Is it better to HELOC your primary home or the rental you already own?
For most buyers, the primary home. Both of the penalties on investment-property borrowing (a lower CLTV cap and a rate premium of roughly prime + 0.5–2%) attach to the rental. Your primary residence carries neither, so the same amount of equity frees up more money at a lower rate. The exception is when you want to keep your home's equity untouched, or when the rental holds the equity and your home doesn't.
Can you use a HELOC to buy a second home outright, not just the down payment?
You can, if your line is large enough, but financing the whole purchase with a variable-rate HELOC concentrates a lot of risk in one place. A more common structure is a HELOC for the down payment plus a conventional mortgage on the new property, which keeps most of the balance on a fixed rate and reserves the flexible line for the piece you plan to pay down quickly.
Do you still need reserves if the down payment comes from a HELOC?
Yes, and lenders check. On an investment purchase most want to see 6–12 months of payments across all your properties in the bank after closing, and borrowing your down payment does not remove that requirement. Draining your reserves to fund the down payment is the move that turns one vacancy or repair into a cash crunch.
Is the interest on a HELOC used for a down payment tax-deductible?
It depends on what you buy and how the funds are traced, not on the fact that it's a HELOC. Interest on funds used to acquire or improve a rental is generally treated as an investment or rental expense rather than home-mortgage interest, and the tracing rules are specific. This is general information, not tax advice; confirm your situation with a CPA and current IRS guidance.