HELOC Calculator

Calculate monthly payments for a Home Equity Line of Credit (HELOC). Estimate draw period and repayment period costs based on balance and interest rate.

A HELOC (Home Equity Line of Credit) works like a credit card secured by your home. You can draw, repay, and redraw during the draw period (typically 10 years), then repay the balance over the repayment period.

HELOC structure

  • Draw period: typically 5–10 years; you can borrow up to your limit; minimum payments are often interest-only
  • Repayment period: typically 10–20 years; no new draws; repay principal + interest
  • Variable rate: most HELOCs use prime rate + margin (rate changes monthly)

HELOC vs home equity loan

  • HELOC: flexible draws, variable rate — best for ongoing expenses or uncertain amounts
  • Home equity loan: lump sum, fixed rate — best for known, one-time expenses

Risks to understand

  • Your home is collateral — missing payments risks foreclosure
  • Variable rate means payment can increase if rates rise
  • "Payment shock" when draw period ends and full amortization begins

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