Taxpayers are "spared" when a new tax doesn't get added on top because a project got it's funding elsewhere. I can't speak for the city level taxes in sf becau

Taxpayers are "spared" when a new tax doesn't get added on top because a project got it's funding elsewhere. I can't speak for the city level taxes in sf because I don't pay those, but I know that in California sometimes taxes can expire and the voters don't renew them.