HELOCLedger

Full HELOC Calculator

Adjust the sliders to model your draw and repayment periods. Click "Show payment schedule" to see yearly snapshots, then email yourself the full month-by-month plan.

$50,000
$5k – $500k
8.50%
Most HELOCs in 2026 sit between 7% and 10% APR
10 yr
Interest-only payments while you can re-draw
20 yr
Principal + interest amortization after the draw period
Your numbers
Draw-period payment (interest only)$354.17 / mo
Repayment-period payment$433.91 / mo
Total interest paid$96,639
Total of all payments$146,639
Estimated payoff dateApr 2056
Email me the printable plan

One-page PDF with the full month-by-month schedule, total interest, and a plain-English explainer you can share with your spouse or take to your lender.

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How to read these numbers

A HELOC has two distinct life stages. The draw period is when you can pull money from the line, usually paying interest only on what you've borrowed. The repayment period begins when the draw window closes and turns the remaining balance into a fully amortizing loan — principal plus interest, on a fixed schedule.

Why the second number is bigger

The repayment payment is almost always larger than the draw-period payment, and sometimes by a lot. That jump is often called payment shock. It's the single biggest reason HELOCs go sideways. Run the numbers before you start drawing, not after.

What the calculator assumes

  • You're paying interest only during the draw period (most common HELOC structure).
  • Your APR is constant. Real HELOCs are variable — assume some upside risk.
  • You've drawn the full line. Borrowing less means lower payments across the board.