Under Prop 19, can I buy a new house before selling my primary residence within two years?

Generally yes. Prop 19 allows the replacement purchase within two years of the sale, and the order can typically work either way, but confirm your specifics with the county assessor before you act. Prop 19 lets eligible California homeowners (age 55 or older, severely disabled, or victims of a wildfire or natural disaster) carry their existing property tax basis to a replacement home anywhere in the state. The replacement can be purchased within two years of selling the original property, buying first or selling first, as long as both transactions fall inside that two-year window and meet the timing rules. Because this touches your property taxes for years to come, do not rely on any summary, including this one. Verify the current requirements with your county assessor's office or a qualified tax professional, since the specific sequencing, timelines, and value limits are technical and can be updated. Getting the order and the two-year timing right is what preserves the tax savings, so it is worth a direct confirmation rather than a guess. If it is the numbers on the replacement home you are working out, we are glad to help you model the payment side in a Roadmap conversation while you confirm the tax treatment with the assessor.