Who would have more federal income tax withheld from hisher paycheck?

Generally, an individual with a higher income would have more federal income tax withheld from their paycheck. Additionally, filing status, the number of allowances claimed on Form W-4, and other factors like additional income or deductions can also influence how much tax is withheld. For example, a single filer earning a higher salary will typically see more tax withheld compared to someone earning less or claiming more allowances.