Equity sitting idle in a property you already own is essentially uninvested capital. A Home Equity Line of Credit (HELOC) converts that equity into a revolving credit facility you can draw on, repay, and redraw — making it one of the more flexible tools for funding down payments, rehab budgets, or closing cost gaps across multiple deals.
The strategy works, but it carries real risks and real constraints. Understanding both is what separates investors who use HELOCs effectively from those who overextend.
What a HELOC Is and How It Works
A HELOC is a revolving line of credit secured by equity in a property. Lenders typically allow you to borrow up to 80-85% of a property's appraised value, minus any existing mortgage balance. That ceiling is expressed as a combined loan-to-value (CLTV) ratio — the total of all liens divided by appraised value.
A HELOC has two phases:
- Draw period (typically 5-10 years): You can borrow, repay, and reborrow up to your credit limit. Most HELOCs require interest-only payments during this phase.
- Repayment period (typically 10-20 years): The line closes, and you repay the outstanding balance in fully amortized installments. Monthly payments increase substantially at this transition.
Unlike a home equity loan, which disburses a lump sum at a fixed rate, a HELOC carries a variable rate — usually indexed to the prime rate plus a margin. As of mid-2025, prime sits around 7.5%, and HELOC margins for well-qualified borrowers on primary residences typically run 0.5-2.0 percentage points above that. Rates on rental property HELOCs run higher, often 1-3 points above primary residence pricing.
Why Investors Use HELOCs Specifically
The revolving structure is the key distinction. A cash-out refinance gives you one lump sum tied to a new first mortgage. A HELOC gives you a credit facility you can activate deal by deal — which suits investors running multiple acquisitions in a single year.
