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HELOC Calculator

Calculate HELOC payments, available credit, draw period interest-only payments, and full repayment period P&I payments. Compare HELOC vs. home equity loan and see total interest cost.

Live Mortgage Rates· Freddie Mac PMMS
Week of Apr 2, 2026
30-yr fixed6.46%
15-yr fixed5.77%

National average rates from the Freddie Mac Primary Mortgage Market Survey. Your actual rate may vary based on credit score, lender, and location.

Current outstanding balance on your mortgage

Variable rate — typically prime + margin

Combined Loan-to-Value limit (lender policy)

Home Equity
$170,000
Available Credit
$102,500
CLTV Ratio
80.0%

Payment Breakdown

Draw Period Payment

Interest-only for 10 years

$600.00/mo
Repayment Period Payment

Principal + interest for 15 years

$811.41/mo
Interest During Draw Period$72,000
Interest During Repayment$66,054
Total Interest Paid$138,054
Total Cost (Principal + Interest)$218,054

Payment Shock Warning

Your payment increases from $600.00/mo to $811.41/mo (35% increase) when the draw period ends. Budget for this increase before opening the HELOC.

HELOC Tips

  • Tax deductibility: HELOC interest may be deductible if funds are used to buy, build, or substantially improve your home (consult a tax advisor)
  • Rate caps: Ask lenders about periodic and lifetime rate caps to limit your exposure to rising rates
  • Annual fees: Some HELOCs charge annual fees of $50–$100; factor these into your total cost
  • Freeze risk: Lenders can freeze or reduce your HELOC if home values drop significantly

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Live Market Data

Live

Fed Rate

3.64%

10yr Treasury

4.31%

Updated 08:00 PM

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