Changes

However, not all states use a progressive form of income tax, some use a flat rate, and generally assess income tax only on income earned within that state.

However, not all states use a progressive form of income tax, some use a flat rate, and generally assess income tax only on income earned within that state.

Seven states do not assess an income tax on individuals.

Nine states do not assess an income tax on all or most individual income: [[Alaska]], [[Washington]], [[Nevada]], [[Wyoming]], [[South Dakota]], [[New Hampshire]], [[Tennessee]], [[Florida]], and [[Texas]].

==Other Taxation systems==

==Other Taxation systems==