HELOC Payment Calculator — Embed | Budget Build Invest !

HELOC details

Amount drawn on the line

Interest rate (%) — HELOCs are variable

Draw period (years, interest-only)

Repayment period (years)

Draw period payment (interest-only)

$354.17/mo

For the first 10 years

Repayment period payment

$433.91/mo

Years 11–30 (principal + interest)

⚠ Payment shock: when the draw period ends, your payment jumps by $79.74/month ($354.17 → $433.91). Budget for this before it arrives — it is the most common HELOC surprise.

Interest during draw phase

$42,500.40

Interest during repayment

$54,138.40

Total cost of borrowing

$146,638.80

Assumes the balance stays fully drawn through the draw period and the rate stays constant — real HELOC rates are variable (typically prime + margin) and will move your payment. Paying principal during the draw period reduces both phases' interest.