How does a HELOC payment work?

During the draw period you can borrow and typically pay interest only. When the repayment period begins, you pay principal and interest on the balance, which usually makes the payment jump significantly.

Why did my HELOC payment increase?

Two common reasons: the variable interest rate rose, or the loan moved from the interest-only draw period into the principal-and-interest repayment period. This calculator estimates both effects.

It can be — because your home is collateral, falling behind can put the property at risk, and variable rates make payments unpredictable. Borrow conservatively and plan for the repayment-period payment, not just the draw payment.

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HELOC Payment Calculator

Estimate draw-period interest-only payments and repayment-period principal-and-interest payments for a home equity line of credit.

Planned HELOC draw

Variable APR %

Draw period years

Repayment period years

A HELOC is secured by your home. Payments can rise when rates change or when the loan moves from draw period to repayment period.

How this tool works

Enter your planned draw amount, the variable APR, and the length of the draw and repayment periods. The tool estimates your interest-only payment during the draw period, your principal-and-interest payment during repayment, and the payment jump between the two.

Why it matters for your credit

A HELOC is secured by your home, and its payments can rise sharply — both when rates move and when the loan shifts from interest-only draws to full repayment. Seeing the payment jump in advance helps you avoid a surprise you cannot afford.

Frequently asked questions

How does a HELOC payment work?: During the draw period you can borrow and typically pay interest only. When the repayment period begins, you pay principal and interest on the balance, which usually makes the payment jump significantly.
Why did my HELOC payment increase?: Two common reasons: the variable interest rate rose, or the loan moved from the interest-only draw period into the principal-and-interest repayment period. This calculator estimates both effects.
Is a HELOC risky?: It can be — because your home is collateral, falling behind can put the property at risk, and variable rates make payments unpredictable. Borrow conservatively and plan for the repayment-period payment, not just the draw payment.

This tool gives an educational estimate only — not a promise of a specific score change, approval, or lender decision. Explore all free tools, dispute letter templates, or the credit guides.