How the HELOC Calculator Works

It estimates your available home equity line of credit and the interest-only or principal-and-interest payment during the draw and repayment periods.

How It Works, Step by Step

The calculator finds your maximum line by multiplying home value by the allowed combined loan-to-value and subtracting your first mortgage. It then estimates the payment on the amount you draw, often interest-only during the draw period and amortizing afterward.

A HELOC lets Florida homeowners tap equity without refinancing a low first-mortgage rate, which is valuable for anyone who locked in during the low-rate years. As with any Florida mortgage, documentary stamp and intangible taxes apply to the line, and lenders weigh the area's insurance costs when sizing the credit limit.

Want the underlying math? See the heloc formula page, or open the calculator to try it with your own figures.