What Builds Your Home Equity?
Home equity can change through two main factors: mortgage paydown (principal payments reduce your loan balance) and changes in home value (which can increase or decrease). Early in many amortizing mortgages, a larger share of each payment goes toward interest. The actual mix depends on the loan terms and payment amount.
Why Equity Matters for a HELOC
Your equity position directly determines how much you can borrow via a HELOC. Some lenders use combined loan-to-value limits around 80–85%, but limits and underwriting requirements vary. The higher your equity, the larger the credit line available to you. Use the Borrowing Power Calculator to explore an illustrative credit-line estimate.
This tool projects equity using a consistent appreciation rate. In reality, home values fluctuate and can decline. The default 3% is an example, not a forecast. Try 0% or a negative rate to explore other scenarios.
Next Steps
Once you know your current and projected equity, estimate how much you might be able to borrow today with the Borrowing Power Calculator, or check your current LTV ratio with the LTV Calculator.