美國現在有8個州不收州所得稅，除了這8個州，還有7個州隻是不征收退休金的稅。伊州是其中一個。

Alabama	Pension income
Alaska	No state income tax
Florida	No state income tax
Hawaii	Pension income
Illinois	Retirement income exempt, including Social Security, pension, IRA, 401(k)
Iowa	Pension income
Mississippi	Retirement income exempt, including Social Security, pension, IRA, 401(k)
Nevada	No state income tax
New Hampshire	Pension, IRA, 401(k)
Pennsylvania	Pension, IRA, 401(k)
South Dakota	No state income tax
Tennessee	No state income tax
Texas	No state income tax
Washington	No state income tax
Wyoming	No state income tax