Federal income tax percentage tables 2013, Employment tax due dates 2014 federal income tax tables 2013 federal income tax tables (2013 federal income tax tables (irs published on dec 31, 2012)). Tax credits, rebates & savings | department energy, Government agencies, utilities and others offer a variety of tax credits, rebates and other incentives to support energy efficiency, encourage the use of renewable. Publication 17 (2013), federal income tax, Income taxes (federal, state, local, and foreign). general sales taxes (state and local). real estate taxes (state, local, and foreign). personal property taxes.