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 rate of tax at the federal level is graduated; that is, the tax rates on higher amounts of income are higher than on lower amounts. Some states and localities impose an income tax at a graduated rate, and some at a flat rate on all taxable income. Federal tax rates in 2013 varied from 10% to 39.6%.