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Calculators/Real Estate & Mortgages
HELOC Calculator
Calculate your maximum Home Equity Line of Credit and estimated interest-only payments.
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HELOC Summary
Available Home Equity$150,000.00
Max HELOC Line$70,000.00
Monthly Interest (on draw)$354.17
Max HELOC Line
$70,000.00
Available Equity
$150,000.00
Monthly Interest (on draw)
$354.17
How to Use This Calculator
1
Enter your home's current value
Use a recent appraisal, Zillow estimate, or your county's assessed value. The more accurate, the better your HELOC estimate.
2
Enter your remaining mortgage balance
Find this on your latest mortgage statement or servicer's online portal. This is your total combined debt, not the original loan.
3
Set the max LTV allowed
Lenders typically allow 80–90% combined LTV. In Texas, 80% is the legal maximum. Most lenders stay at 80% nationwide for best rates.
4
Enter the HELOC interest rate
HELOCs have variable rates, usually tied to the Prime Rate. As of 2025, most HELOCs range 8–10%. Use the rate your lender quoted.
5
Enter your planned draw amount
During the draw period, you only pay interest on what you borrow, not the full line. Enter the amount you plan to use to estimate your monthly payment.
Real-World Examples
Texas Remodel HELOC
Home Value
$450,000
Mortgage Balance
$280,000
Max LTV (TX)
80%
HELOC Rate
8.75%
ResultMax Line: $80,000
Monthly interest on full $80K draw: $583/mo. Texas law caps at 80% LTV — protecting borrowers from over-leveraging.
Houston Home Improvement
Home Value
$320,000
Mortgage Balance
$190,000
Draw Amount
$40,000
HELOC Rate
9.0%
ResultInterest-Only: $300/mo
Max line is $66,000 but only drawing $40K. Smart — keep unused credit available for emergencies.
Frequently Asked Questions
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