USAHELOC Interest-Only vs. RepaymentFinance & SalaryUS Home Equity Line of Credit (HELOC) Payment Shock & Interest-Only Calculator
Calculate your low monthly interest-only payments during the 10-year HELOC draw period versus the dramatic 'payment shock' increase when the line resets to a 20-year fully amortizing principal-and-interest repayment period.
Calculator Inputs
Live Real-TimeDraw Period Monthly Payment (10-Yr Interest-Only)
Repayment Period Monthly Payment (20-Yr Principal + Interest)
935.92 $/mo
Payment Shock Monthly Jump ($/mo Increase)
333.84 $/mo
Detailed Calculation Breakdown
Calculation Methodology
Draw Period Monthly Payment = (HELOC Balance * (Variable APR% / 100)) / 12. Repayment Period Monthly Payment = P * [r(1+r)^240] / [(1+r)^240 - 1].
Important Legal & Educational Disclaimer
HELOCs have variable interest rates tied to the Wall Street Journal Prime Rate. Payment shock occurs when transitioning from interest-only draw to principal repayment.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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