If you've built equity in a rental, there are two common ways to tap it without selling: a cash-out refinance or a home equity line of credit (HELOC). Both turn equity into usable money, but they're built differently — one replaces your mortgage with a larger fixed loan, the other adds a flexible second line on top of it. The right choice depends less on which is "better" and more on what you're trying to do.
Here's how the two compare on a rental property, where each one shines, and the single structural difference that decides most of these calls. For the mechanics of the refinance side, see the cash-out refinance guide.
The two tools, briefly
A cash-out refinance replaces your existing mortgage with a new, larger one and pays you the difference as a lump sum. For investors, this is usually a DSCR loan — a fixed-rate, 30-year product that qualifies on the property's rent rather than your income.
A HELOC leaves your existing mortgage in place and adds a revolving line of credit secured by a second lien. You draw what you need, when you need it, and pay interest only on the balance you've used. Rates are typically variable, with a draw period followed by a repayment period.
A cash-out refi resets your whole mortgage; a HELOC leaves it alone and adds a second. That one difference decides most of these calls.
How they differ
Structure: cash-out = one lump sum; HELOC = a revolving line you draw from.
Rate: cash-out is usually fixed; HELOCs are usually variable.
Lien: cash-out replaces your first mortgage; a HELOC sits behind it as a second.
Qualifying: a DSCR cash-out qualifies on rent; HELOCs on rentals often require full income documentation.
Availability on rentals: cash-out is widely available; HELOCs on investment property are harder to find.
The structural difference that matters most
If your existing mortgage carries a low rate, a cash-out refinance trades that rate away — you're rewriting the entire loan at today's pricing. A HELOC doesn't touch the first mortgage; it borrows only against the equity on top, so your original rate stays intact. When investors hold a loan well below today's rates, that single fact often points them toward a HELOC for smaller needs and toward a cash-out only when the lump sum — or the certainty of a fixed payment — is worth resetting the loan.
When a cash-out refinance fits
- You need a lump sum — a down payment on the next property, or the capital-recovery step in a BRRRR deal.
- You want a fixed, predictable payment rather than a rate that can move.
- You're scaling and want to qualify on the property's rent instead of your income.
- Your existing rate isn't dramatically lower than today's, so resetting the loan costs you little.
When a HELOC fits
- You want flexible, revolving access — draw, repay, and draw again — rather than one fixed amount.
- You only need funds intermittently or in smaller amounts.
- You have a low rate on the first mortgage you don't want to disturb.
- Your need is short-term or bridge-like and you'll pay it back quickly.
The rental-property reality
One practical wrinkle: HELOCs are far easier to get on a primary residence than on an investment property. On rentals, fewer lenders offer them, the available LTVs tend to be lower, rates run higher, and many require full personal income qualifying. A DSCR cash-out, by contrast, is purpose-built for investors and qualifies on the property's cash flow — which is why many investors who set out looking for a rental HELOC end up comparing it against a cash-out refi instead. Availability and terms vary widely by lender, so check both before you decide.
Weigh the risk, too
A variable-rate HELOC payment can rise if rates move, and the balance often shifts from interest-only during the draw period to fully amortizing afterward — a payment jump to plan for. A fixed cash-out refi gives you a larger but stable obligation you can underwrite with confidence. Neither is riskier in the abstract; they simply carry different risks.
The bottom line
Both tools turn rental equity into usable money; the right one depends on the play. Reach for a cash-out refinance when you want a lump sum, a fixed payment, and a loan that qualifies on rent — especially when you're scaling. Lean toward a HELOC when you want flexible access, only need funds now and then, and don't want to give up a low rate on your existing mortgage — if you can find one on an investment property. Run the cash-out numbers first; it's the side that's easiest to pin down.
