And there is nothing to worry here actually, for even if you have set your hard disk to turn off after say 5 mins, if there is some background maintenance task being carried out, it will not shut down â but instead the system will reset the hard diskâs idle timer.
The Average Tax Rate Definition. The average tax rate in the United States varies depending on the amount of income to which it's applied. An average tax rate as it applies to income tax may be defined as the percentage of income owed as taxes or, as Fair Tax defines the term, as the ratio of taxes paid to taxable income. In mathematical terms, divide the total tax liability by total taxable income to get the average tax rate.
The range of income where you stay at any particular rate is known as a tax bracket. For a single person in 2016 the rate on taxable income between $37,650 and $91,150 is 25%, so those numbers establish the 25% bracket. If youâre single and your taxable income is between those two numbers, your tax bracket is  25%.