Home equity

HELOC Payment Calculator

A HELOC usually has two phases: an interest-only draw period and a repayment period where principal is paid off. Enter your balance and rate to see the payment in each phase, the jump between them and what a rate rise would do.

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RateDraw period paymentRepayment paymentTotal interest

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Why model HELOC payments

Avoid payment shock

See the jump when interest-only ends.

Plan renovations

Know what a draw will cost each month.

Stress-test rates

Check affordability if rates rise.

How to use the HELOC calculator

  1. Check your limitEnter home value, mortgage balance and the lender’s CLTV limit.
  2. Enter the balance and rateThe amount you plan to draw and the current rate.
  3. Set the periodsDraw and repayment years, plus any extra principal.

How a HELOC works

A HELOC is a revolving credit line secured by your home. During the draw period you can borrow, repay and borrow again, and the minimum payment is usually interest only.

Because the line is secured by your home, falling behind can put the property at risk. Treat the repayment-period payment, not the low interest-only payment, as the number to budget for.

Draw period

Often 10 years, interest-only payments.

Repayment period

Often 10-20 years, principal and interest.

CLTV

All home loans / home value.

HELOC FAQ

How is a HELOC payment calculated during the draw period?

Usually interest only: balance x annual rate / 12. A $50,000 balance at 8.5% costs about $354 a month.

What happens when the draw period ends?

You can no longer borrow and the balance is repaid with principal and interest over the repayment period, often 10 to 20 years. Payments can rise sharply; this is called payment shock.

How much can I borrow with a HELOC?

Lenders typically allow a combined loan-to-value (CLTV) of 80-90%: home value x CLTV limit - mortgage balance.

Are HELOC rates variable?

Most are, tied to the prime rate. The rate-rise table shows how payments would change if rates go up.

Does paying extra during the draw period help?

Yes. Every extra payment reduces the balance, which lowers the interest and the repayment-period payment.

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