HELOC Strategy for STR Financing: Pulling Equity From Primary Residence

Home equity lines of credit (HELOCs) on primary residences are a common capital source for STR investors building portfolios. The structure: a revolving credit line secured by primary-residence equity, drawable as needed, with interest-only payment options during the draw period. Used disciplined, HELOCs let investors deploy capital quickly into STR opportunities without waiting for cash accumulation. Used poorly, they layer mortgage risk on the primary residence — not a good place to default.

How HELOCs work

Most HELOCs offer 80-90% combined LTV on primary residence (your existing mortgage + HELOC together). Draw periods typically 10 years; repayment periods 10-20 years after. During draw period, payments are typically interest-only or 1% of outstanding balance. Rates are variable, tied to prime rate (8.5% as of late 2025). Closing costs $500-$2,000 typical. Lenders include traditional banks, credit unions (Pen Fed, Navy Federal often have competitive rates), and online players (Figure, Discover).

STR investor use cases

• Down payment funding: Pull HELOC capital for STR down payment, then refinance into long-term DSCR loan. Pay off HELOC from refi proceeds.
• Quick-close opportunities: HELOC funds ready to deploy when a deal materializes; faster than cash-out refi on existing properties.
• Bridge financing: Cover gap between sale of one property and acquisition of next.
• Major renovation: Fund value-add renovation that drives appraisal increase, then refinance to recapture HELOC capital.
• NOT for: Long-term operating capital, daily-operations expenses, or holding the entire mortgage on the STR.

Risk management

Two structural risks. First, rate risk: HELOC rates are variable. If prime moves up materially, your interest cost compounds. Second, primary-residence risk: defaulting on a HELOC can put your primary residence in foreclosure. The discipline: use HELOCs as transitional capital, not permanent capital. Pay them down via refinancing or cash flow within 12-24 months. Don't carry HELOC balances at full draw indefinitely.

Cost-segregation interaction

HELOC interest is generally not deductible against rental income unless the HELOC proceeds were used to acquire or improve rental property (tracing rules apply). Document HELOC fund usage carefully — money used for STR down payment can deduct interest against rental income; money used for personal expenses cannot. Keep meticulous records to support deductibility. Cost-segregation deductions on the resulting STR are unaffected by the financing source. See cost segregation for Airbnb properties.

Frequently asked questions