[quote=flu]Prop 30 retroactively applies back to beginning of 2012.

There’s no indication that the federal tax cuts will retroactively apply back to 2012 (yet).
[/quote]

I heard that there is some sort of Federal law/constitutional provision wherein federal tax increases can not be retroactive.

Apparently there is so such thing at state level.

(Third party info. Correct me if I am wrong…)