The Internal Revenue Service (IRS) has announced the annual inflation adjustments for a number of provisions for the year 2017, including tax rate schedules, tax tables, and cost-of-living adjustments for certain tax items.
These are the applicable numbers for the tax year 2017 - in other words, effective January 1, 2017. They are NOT the numbers and tax rates that you'll use to prepare your 2016 tax returns in 2017 (you'll find them here). Rather, these numbers and tax rates are those you'll use to prepare your 2017 tax returns in 2018. (More...)