HELOC Payment Calculator

Use the HELOC Payment to work through hELOC Payment from the values you enter. Review the notes below the result so you understand what the figure represents.

Interest-only payment (draw period)
—
Repayment-phase payment —
Total interest in repayment —
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How it works

Draw period: balance × rate/12; repayment: standard amortization over the repay term

How to use the HELOC Payment

Enter the requested values and start with one realistic example. Read the result together with its unit or label, then change one input at a time if you want to compare options.

Use the result as a planning estimate. Rates, fees, rules and personal circumstances can change the final figure.

Frequently Asked Questions

How do HELOC payments work?
Most HELOCs have a 10-year draw period with interest-only minimums, then a 10–20 year repayment period where the balance amortizes. The payment jump at that switch surprises many borrowers — this calculator shows both numbers.
Why did my HELOC payment change?
HELOC rates are variable, usually prime plus a margin, so payments move with the Federal Reserve. Ending the draw period also converts payments from interest-only to principal-and-interest.
How much can I borrow on a HELOC?
Lenders typically allow combined borrowing (mortgage + HELOC) up to 80–85% of home value. Use our home equity calculator to find your available equity first.