Investors who already own a primary residence with significant equity have a financing tool worth examining closely: the Home Equity Line of Credit, or HELOC. Rather than liquidating savings or taking on a second personal loan, some investors tap their home equity to fund a mountain vacation rental purchase, a renovation, or a down payment on a second mortgage. The strategy has real merit, but it carries meaningful risks that the numbers need to justify before you commit.
How a HELOC Works as an Investment Tool
A HELOC is a revolving line of credit secured by your primary residence. Lenders advance funds up to an approved limit, you repay principal or interest during a draw period (typically five to ten years), and the line resets as you pay down the balance. After the draw period closes, a repayment period kicks in, usually ten to twenty years, during which you pay both principal and interest.
Key mechanics relevant to investors:
- Credit limit: Most lenders cap the combined loan-to-value (CLTV) ratio at 80 to 85 percent of your home's appraised value, minus your outstanding mortgage balance. On a home appraised at $600,000 with a $300,000 mortgage balance, an 80 percent CLTV allows up to $180,000 in HELOC credit.
- Draw flexibility: You can pull funds in stages, which suits phased renovations or opportunistic purchases without drawing the full line on day one.
- Interest-only draw period: Many HELOCs require only interest payments during the draw period, which reduces near-term cash outflow while the investment property ramps up rental income.
- Variable rates: HELOC rates are tied to the prime rate, meaning monthly payments can increase when the Federal Reserve raises its benchmark rate. As of mid-2025, prime rate-based HELOCs were pricing in the 8 to 10 percent range depending on credit profile and lender; verify current rates with at least two to three lenders before committing.



