For many long-term homeowners in California, the idea of moving can be daunting—not because of the packing, but because of the "tax trap." If you bought your home decades ago, your property tax is likely tied to a much lower valuation thanks to Proposition 13. Moving to a new home usually means a "reset" to current market prices, which can lead to a massive jump in annual taxes. However, if you are 55 or older , California law offers a powerful strategy to help you downsize without losing your hard-earned tax savings. The Secret Weapon: Proposition 19 Under Proposition 19 , homeowners aged 55+ can sell their primary residence and transfer its "taxable value" to a new replacement home anywhere within the state of California. How it works: The Benefit: You keep the low assessment from your old house and apply it to the new one. The Flexibility: You can move to any county in California, and you can use this benefit up to three times ...