The more taxable income you have, the higher tax rate you are subject to. This calculation process can be complex, so PaycheckCity’s free calculators can do it for you! To learn how to calculate income tax by hand, follow these step-by-step instructions.
The federal income tax is a tax on annual earnings for individuals, businesses, and other legal entities. All wages, salaries, cash gifts from employers, business income, tips, gambling income, bonuses, and unemployment benefits are subject to a federal income tax.
For each payroll, federal income tax is calculated based on wages and the answers provided on the W-4 and year to date income, which is then referenced to the tax tables in IRS Publication 15-T. The current tax rates are 0%, 10%, 12%, 22%, 24%, 32%, 35%, or 37%. Again, the percentage chosen is based on the paycheck amount and your W4 answers.