The first effort in 42 years to change Prop. 13 would provide $2.6 billion to $4.6 billion for K-12 schools and community colleges.
The Chan Zuckerberg Initiative, funded by Facebook CEO Mark Zuckerberg and his wife, Priscilla Chan, is one of the biggest donors to Yes on Prop. 15.
See how much money K-12 districts and charter schools might receive in 2025-26 if voters pass Prop. 15 on Nov. 3.
Big corporate property owners would pay the bulk of new taxes; opponents claim costs would be borne by small business renters.
Prop. 16 appears in trouble, but voters narrowly support taxing commercial property to raise billions for schools and local governments.