An Hayward CA Property Tax is based on Alameda County's average effective tax rate of around 1.31%. Property taxes are calculated using the assessed value of the home, which is typically based on the purchase price and may increase by up to 2% annually under Proposition 13. Homeowners may qualify for exemptions, such as the Homeowners’ Exemption, to reduce their tax bill. Understanding local rates and assessment rules is essential for budgeting and planning when owning property in Hayward, California.