9. Kentucky

State income tax: 2% (on less than $3,000 of taxable income); 6% (on more than $75,000 of taxable income)

Average state and local sales tax: 6%

Estate tax/Inheritance tax: No/No

Kentucky offers retirees a long list of exemptions on retirement income including private pensions and annuities, while also offering an additional exclusion on military, civil service, state and local government pensions. Kentucky does have a required inheritance tax, but Class A beneficiaries (spouses, parents, children, grandchildren, brothers and sisters) remain exempt.