HELOC Calculator – Home Equity Line of Credit Repayment Estimator

A Home Equity Line of Credit (HELOC) offers flexible revolving credit backed by your home’s equity. Use our free HELOC Calculator to compare interest-only draw payments against fully amortizing repayment payments.

HELOC Calculator – Home Equity Line of Credit Repayment Estimator
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Interest-Only Draw Period Payment
Fully Amortizing Repayment Payment
Total Interest Paid During Draw Period
Total Interest Paid During Repayment
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History — HELOC Calculator – Home Equity Line of Credit Repayment Estimator

# Time Credit Line Rate % Draw Payment Repayment Payment Action

How a HELOC Repayment Structure Works

  1. Draw Period (Years 1–10): You can draw funds as needed up to your credit limit. Monthly payments during this phase are interest-only.
  2. Repayment Period (Years 11–30): The line of credit closes. You can no longer draw funds, and payments adjust to amortize both principal and interest over the remaining term.

HELOC Payment Phase Comparison Table ($50,000 Borrowed @ 8.5%)

Phase Duration Monthly Payment Payment Type Phase Interest Paid
Draw Period Years 1–10 (10 Yrs) $354.17 Interest-Only $42,500
Repayment Period Years 11–30 (20 Yrs) $433.91 Principal + Interest $54,138
Payment Shock Jump Year 11 Shift +$79.74 / month (+22.5%) Full Amortization Total Int: $96,638

Frequently Asked Questions

How does a HELOC work?

A Home Equity Line of Credit (HELOC) is a revolving line of credit secured by home equity. During the initial draw period (typically 10 years), you can draw funds and pay interest-only. After the draw period ends, the loan enters repayment (typically 10-20 years) where principal and interest must be fully repaid.

What is HELOC payment shock?

Payment shock occurs when a HELOC transitions from the interest-only draw period to the repayment period, causing monthly payments to significantly increase as principal payments begin.