California counties should implement the good part of Proposition 19; the voters should handle the bad part by turning down the ballot measure this November.
Portability — taking your property tax bill with you when you move from one California county to another — rightly protects people from enormous spikes in taxes. Property owners are protected from dramatic tax increases by Proposition 13, passed in 1978, limiting increases to 2 percent a year. Portability would apply that limit even for most intercounty moves.
Right now a few California counties allow residents to bring along the property tax bill from their previous home, which is useful because taxing authorities all over the state are looking for every opportunity they can find to separate you from your money. Portability is one way to ensure a resident’s tax bill won’t get precipitously worse.