Use this HELOC calculator to estimate your maximum borrowing power, monthly interest-only payments during the draw period, and full principal-and-interest payments once repayment begins. See how combined LTV (CLTV) shapes your home equity line of credit in Texas, and stack it against a cash-out refi before you decide. Total interest cost over the life of the line is shown so you know exactly what you are signing up for.
Texas caps all loans on a homestead at 80% of market value combined.
Example rate. Change it to match your quote; your APR will differ.
HOME
$550,000
Draw Payment
$354/mo
Interest Only
Repay Payment
$434/mo
P + I
Total Interest
$96,639
30 yr life
HELOC Draw
$50,000
Your cash
Texas homestead HELOC rules: each advance must be at least $4,000, lender fees are capped at 2% of the line, and you can close only one home equity loan every 12 months. Read more about HELOC loans in Texas.
Results are estimates for illustration. Prefilled rates are examples based on national averages as of September 28, 2026, not offers. Your rate and APR depend on your credit, loan and property, and come from a Loan Estimate. Get started for a quote.
Interest only during the draw period, then principal and interest. First 5 repayment years shown. Assumes the full draw is outstanding for the whole draw period.
| Feature | HELOC | Cash-Out Refi |
|---|---|---|
| Keeps Primary Mortgage? | Yes | No |
| Flexible Draw Schedule? | Yes | No |
| Fixed Interest Rate? | No | Yes |
| Interest-Only Option? | Yes | No |
| Single Monthly Payment? | No | Yes |
| Closing Costs? | Low | Higher |
Borrow what you need, when you need it, like a credit card backed by your home. During this period, you typically only pay interest on the amount you've drawn, keeping monthly payments low.
Once the draw period ends, you can no longer borrow. Payments shift to fully amortized principal and interest, which means higher monthly payments as you repay the outstanding balance. To pay it down faster, try our mortgage payoff calculator.
Compare a home equity loan vs HELOC, size the dollar amount with our home equity calculator, or look at a Texas cash-out refinance for a fixed rate.
Renovate, consolidate debt, or pay for a big expense while keeping your existing mortgage rate. If you're weighing it against a cash-out refinance or thinking about using a 401(k) to pay off your house, talk to STX Lending about HELOC options today.
Draw only what you need.
Your primary mortgage stays intact.
Lower closing costs than refi.
Fund improvements that can add value.
Compliance Note: This HELOC calculator is for illustrative purposes only. HELOC rates are typically variable and tied to the Prime Rate. Actual terms, rates, and available credit lines depend on creditworthiness, property value appraisal, and lender guidelines. This is not a commitment to lend. NMLS #222982.