The Tennessee income tax does not apply to salaries and wages, but most income from stock, bonds and notes receivable is taxable. All taxable dividends and interest which exceed the $1,250 single exemption or the $2,500 joint exemption are taxable at the rate of 6%. The state's sales and use tax rate for most items is 7%. Food is taxed at a lower rate of 5.25%, but candy, dietary supplements and prepared food are taxed at the full 7% rate. Local sales taxes are collected in most jurisdictions, at rates varying from 1.5% to 2.75%, bringing the total sales tax to between 8.5% and 9.75%, one of the highest levels in the nation. Intangible property is assessed on the shares of stock of stockholders of any loan company, investment company, insurance company or for-profit cemetery companies. The assessment ratio is 40% of the value multiplied by the tax rate for the jurisdiction. Tennessee imposes an inheritance tax on decedents' estates that exceed maximum single exemption limits ($1,000,000 for deaths in 2006 and thereafter).

What types of income are exempt from Tennessee state income tax?