
Federal Income Tax
The federal income tax is the tax levied by the Internal Revenue Service (IRS) on the annual earnings of individuals, corporations, trusts, and other legal entities. Single Taxpayers: Income Brackets on incomes up to $9,700 on incomes up to $9,875 on incomes over $9,700 on incomes over $9,875 on incomes over $39,475 on incomes over $40,125 on incomes over $84,200 on incomes over $85,525 on incomes over $160,725 on incomes over $163,300 on incomes over $204,100 on incomes over $207,350 on incomes over $510,300 on incomes over $518,400 _Source: Internal Revenue Service._ The marginal tax rate refers to the tax applied on a taxpayer’s next dollar earned. The tax rate that applies to each individual is set up in a marginal tax bracket that shows the highest tax rate to be paid on income earned. The federal income tax is built on a progressive tax system, where higher income earners are taxed at a higher rate. All money earned whether as a wage, a salary, cash gift from an employer, business income, tips, gambling income, bonuses, or unemployment compensation constitutes as income for federal tax purposes.

What Is Federal Income Tax?
The federal income tax is the tax levied by the Internal Revenue Service (IRS) on the annual earnings of individuals, corporations, trusts, and other legal entities. Federal income taxes are applied to all forms of earnings that make up a taxpayer's taxable income, such as employment earnings or capital gains.



How the Federal Income Tax Works
Tax is collected from individuals and corporations by the city, state, or country in which the entity resides or operates. When the tax collected is credited to the government of the country’s account, it is referred to as a federal tax.
Federal tax is the money used by the government of a country to pay for the growth and upkeep of the country. Some look at federal tax as “rent” charged to live in a country, or the fee to use the resources provided by a country. When you pay tax to the American government, you’re in effect investing in your economy as the government uses the funds to do the following:
The largest source of revenue for the federal government comes from the income of its residents. In 2018, the latest year for which figures are available, the IRS collected nearly $3 trillion in receipts, of which individuals, estates and trusts contributed $1.57 trillion. When people work for a company, group, or for themselves, they are compensated for the services that they render. They are mostly paid with cash, check, or direct transfer to their bank accounts.
Workers receive their earnings either as net income or gross income. Net income is the total amount earned minus federal tax, which means that the company or payer has withheld the tax and paid it to the government on the worker’s behalf. Gross income includes the total amount of income, and the worker would have to pay the government what is owed.
Tax deducted from income is known as the federal income tax. All money earned whether as a wage, a salary, cash gift from an employer, business income, tips, gambling income, bonuses, or unemployment compensation constitutes as income for federal tax purposes.
The federal income tax is built on a progressive tax system, where higher income earners are taxed at a higher rate. Taxpayers who earn below an annual threshold set by the government would pay little to no tax, while workers who earn six figures or more annually have a mandatory tax rate that applies to their income. The tax rate that applies to each individual is set up in a marginal tax bracket that shows the highest tax rate to be paid on income earned. In effect, the amount of taxable income that one earns determines which tax bracket he would fall into.
The table below shows the marginal tax brackets for single taxpayers, or taxpayers who are married by filing separately.
Single Taxpayers: Income Brackets
on incomes up to $9,700
on incomes up to $9,875
on incomes over $9,700
on incomes over $9,875
on incomes over $39,475
on incomes over $40,125
on incomes over $84,200
on incomes over $85,525
on incomes over $160,725
on incomes over $163,300
on incomes over $204,100
on incomes over $207,350
on incomes over $510,300
on incomes over $518,400
Source: Internal Revenue Service.
The marginal tax rate refers to the tax applied on a taxpayer’s next dollar earned. Unless a taxpayer is in the lowest marginal bracket of 10%, they would have two or more marginal tax brackets. An individual who is unmarried and earns $80,000 annually falls into the 22% marginal tax bracket. This means the taxpayer would be responsible for $13,459 in taxes in 2019, the breakdown for which is illustrated in the chart below.
Dollars
Amount Subject to Tax
Tax Rate
Tax at each rate
$9,700~$39,475
$39,475~$80,000
$13,459 tax bill
However, note that while the marginal rate is 22%, the effective tax rate is 16.8%. This figure is arrived at by dividing the tax bill ($13,459) by income ($80,000) and then multiplying by 100. The effective tax rate is the actual rate the individual will end up paying the government.
Income Tax vs. Federal Income Tax
It is important to distinguish between the general notion of income tax and federal income tax. In the United States, governments at the state level may also levy income taxes in addition to federal income taxes. Not all states have implemented state-level income taxes. The states of Washington, Texas, Florida, Alaska, Nevada, South Dakota, and Wyoming don’t have an income tax. New Hampshire and Tennessee only tax dividends and interest income, and don’t apply taxes to wages, earnings, or other income.
Related terms:
Federal Income Tax
In the U.S., the federal income tax is the tax levied by the IRS on the annual earnings of individuals, corporations, trusts, and other legal entities. read more
What Is the Internal Revenue Service (IRS)?
The Internal Revenue Service (IRS) is the U.S. federal agency that oversees the collection of taxes—primarily income taxes—and the enforcement of tax laws. read more
Itemized Deduction
Itemizing deductions allows some taxpayers to reduce their taxable income, and thus their taxes, by more than if they used the standard deduction. read more
Marginal Tax Rate
The marginal tax rate is the tax rate you pay on an additional dollar of income. read more
Progressive Tax
A progressive tax imposes successively higher rates on taxpayers who have higher incomes. The U.S. has a progressive tax system. read more
Standard Deduction
The standard deduction is a portion of income that is not subject to tax and can be used to reduce a tax bill in lieu of itemizing deductions. read more
State Income Tax
State income tax is a tax levied by a state on the income of its residents, as well as on any nonresidents who earn state-sourced income. read more
Tax Refund
A tax refund is a state or federal reimbursement to a taxpayer who overpaid taxes, often by having too much withheld from a paycheck. read more
Tax Bracket
A tax bracket is the rate at which an individual is taxed. Tax brackets are set based on income levels. read more
Tax Credit
A tax credit is an amount of money that people are permitted to subtract, dollar for dollar, from the income taxes that they owe. read more