The median home price in California is $773,735. Homeowners who bought more than five years ago at pre-appreciation prices likely have substantial equity available. HELOC rates are variable and currently estimated at 8.76% in California, based on the average 30-year fixed mortgage rate of 6.76% plus a typical 2% HELOC spread.
Property taxes in California average 0.7%, which is near the national average of 1.1%.
California imposes a state income tax of 1%–13.3%. HELOC interest used for home improvement may be deductible on your federal return. Consult a tax professional regarding California state-level deductibility.