Most paychecks are subject to federal income tax, but not all of them

Whether your paycheck gets taxed depends on two things: how much you earn and whether you meet the standard deduction threshold for your filing status. If your income falls below that threshold, you owe no federal income tax and your employer should not withhold it. If you earn above it, federal tax is withheld from each paycheck automatically.

The standard deduction changes every year and varies by age and filing status. For 2024, a single person under 65 needs to earn at least $14,600 to owe federal income tax. A married couple filing jointly needs $29,200. If you earn less than these amounts, you typically should not have federal tax taken out of your paycheck — though your employer may still withhold it if you did not tell them otherwise on your W-4 form.

Some income types are never subject to federal income tax at all, regardless of amount. These include certain disability benefits, workers' compensation, and some types of scholarships. Most regular wages, salaries, and hourly pay, however, are taxable.

Key Takeaways

  • Federal income tax is withheld from most paychecks if you earn above the standard deduction for your filing status, which is $14,600 for single filers and $29,200 for married couples filing jointly in 2024.
  • If your income falls below the standard deduction, you should not have federal tax withheld, but you can adjust this on your W-4 form if your employer is withholding anyway.
  • Some income sources like disability benefits and workers' compensation are never subject to federal income tax, even if you earn a high amount.
  • Your employer determines what to withhold based on the W-4 form you complete when hired, so changing your withholding requires updating that form.

How the standard deduction determines whether you owe tax

The standard deduction is the amount of income you can earn before owing any federal income tax. Think of it as a threshold: if your total income for the year stays below it, you owe zero federal tax. If you go above it, you owe tax on the amount over the threshold.

The standard deduction is not the same for everyone. It depends on your filing status (single, married filing jointly, head of household, or married filing separately) and your age. Filers 65 and older get a higher standard deduction. The amounts also increase slightly each year to account for inflation.

Your employer does not know your total annual income — they only know what you earn from them. So they use the information on your W-4 form to estimate how much to withhold from each paycheck. If you have multiple jobs, side income, or a spouse who also works, your actual income may be higher than what one employer sees, which can mean too much tax is withheld.

Income sources that are never taxed federally

Not all money you receive counts as taxable income. Some payments are specifically excluded from federal income tax by law. These include certain government benefits, insurance payouts, and other categories that Congress decided should not be taxed.

Common examples include Supplemental Security Income (SSI), certain disability benefits from the Department of Veterans Affairs, workers' compensation for work-related injuries, and the first $108,000 of wages subject to Social Security tax (though this is a payroll tax, not income tax). Gifts and inheritances are also not subject to federal income tax. Some scholarships and educational grants are tax-free if they pay for tuition and required fees, though room and board are taxable.

If you receive any of these types of income, your employer or the paying organization should tell you whether it is taxable. You will receive a form like a W-2 or 1099 that shows whether tax was withheld.

How withholding works on your paycheck

Your employer withholds federal income tax from your paycheck based on the W-4 form you fill out when you start the job. The W-4 tells your employer how much to take out of each check. The more allowances or adjustments you claim on the W-4, the less tax is withheld. The fewer you claim, the more is withheld.

Withholding is an estimate. Your employer is trying to guess how much tax you will owe for the entire year, then spread that amount across your paychecks. If the estimate is too high, you get a refund when you file your tax return. If it is too low, you owe money when you file.

You can change your withholding at any time by submitting a new W-4 to your employer's payroll department. This is useful if your income changes, you get married or divorced, or you realize you are having too much or too little withheld.

What to do if you should not have tax withheld

If your income is below the standard deduction for your filing status, you can claim exemption from withholding on your W-4. This tells your employer not to withhold federal income tax from your paycheck. You would still owe tax if you earn above the threshold, but at least you would not have money taken out that you do not owe.

To claim exemption, fill out a new W-4 form and submit it to your payroll department. The form has a specific line for claiming exemption status. Keep in mind that exemption is not permanent — you typically have to renew it each year, and the form will ask you to confirm that you still meet the requirements.

If you claim exemption but then earn more than the standard deduction during the year, you will owe tax when you file your return. The exemption just means no withholding happened during the year, not that you do not owe tax.

Multiple jobs and withholding complications

If you work more than one job, each employer withholds tax based only on what you earn from them. They do not know about your other income. This can result in too little tax being withheld overall, which means you may owe money when you file your return.

To fix this, you can use the IRS Form W-4 to tell one employer to withhold extra money from each paycheck. There is a line on the form where you can request additional withholding. You can also use the IRS withholding calculator on their website to figure out how much extra to request.

The same issue happens if you have a spouse who works, or if you have income from self-employment, rental property, or investments. Each source of income is taxed, but withholding only happens on wages. You may need to adjust your W-4 or make estimated tax payments to avoid owing a large amount at tax time.

Frequently Asked Questions

Do I have to have federal income tax withheld from my paycheck?

Your employer is required to withhold federal income tax unless you claim exemption on your W-4 form. You can claim exemption if your income is below the standard deduction and you do not expect to owe tax. However, if you earn above the standard deduction, withholding is required.

What if I want less tax withheld from my paycheck?

You can adjust your W-4 form to reduce withholding. Claim more allowances or request less additional withholding. Keep in mind that if you reduce withholding too much, you may owe tax when you file your return. The IRS withholding calculator can help you find the right amount.

Can I get a refund if too much tax was withheld?

Yes. If your employer withheld more federal income tax than you actually owe, you will receive a refund when you file your tax return. The refund is the difference between what was withheld and what you owed.

Are tips and bonuses subject to federal income tax?

Yes, tips and bonuses are considered wages and are subject to federal income tax. Your employer should withhold tax from bonuses. Tips should be reported to your employer, and tax should be withheld on them as well.

What happens if I do not update my W-4 after a major life change?

If you do not update your W-4 after getting married, divorced, having a child, or taking a second job, your withholding may be incorrect. You could end up with too much tax withheld (resulting in a refund) or too little (resulting in owing money). It is a good idea to review your W-4 whenever your situation changes.