Part-Time Job Tax Withholding Guide

It's important to remember that the IRS requires taxes to be paid on income earned from any source, including income from a second job or part-time work. If you have done any side work in the past year or are currently doing so, it's essential to understand how this may affect your income taxes. 

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Why Did My Job Not Take Out Federal Taxes?

Sometimes, there are no withholdings on the income earned through a part-time second job. This is true for many gig workers, who are usually hired as independent contractors. As independent contractors, they are responsible for paying their own taxes. At the end of the year, they receive 1099s, which usually do not have any withholdings.

For part-time employees receiving a W-2, particularly those earning lower wages, it's not uncommon to find little to no federal income tax withheld from their paychecks. This situation can arise for several reasons:

  • Lower Income Thresholds: Part-time or second jobs often pay less, potentially placing workers below the income threshold required for federal income tax withholding. This doesn't exempt individuals from tax obligations; rather, it means that their withholdings might not be automatically deducted at the source.
  • Incorrect Withholding Setup: If the W-4 form filled out at the start of employment wasn't accurately completed, it could lead to insufficient withholding. This form controls how much tax is withheld from your paycheck, and errors or mismatches in allowances and status can affect the outcome.

To mitigate potential issues, part-time workers should:

  • Review and Adjust W-4 Forms: Ensure that your W-4 form at each job reflects your total income accurately. This might involve adjusting allowances or opting for additional withholding to cover potential tax liabilities.
  • Set Aside Money for Taxes: If your withholdings are insufficient, setting aside a portion of each paycheck for taxes can help avoid surprises come tax season.

How Does Having Multiple Jobs Affect Taxes?

If you have multiple jobs, your withholdings may not be enough to cover your year-end tax liability. This happens because your withholdings are usually set up based on a single job's income, which may not reflect your total income.

The two reasons for discrepancies in tax withholdings are: First, if your second income is much lower than your primary job's income, you probably won't have enough taxes withheld from your second income. Second, your primary income may also not have enough taxes withheld because many people do not update their primary job's withholdings when taking on a second job.

Part-Time Tax Withholding

Because part-time income can be much lower than full-time income, the amount withheld from part-time paychecks is often substantially less.

The difference between what's held and what's owed can vary depending on your total income and the amount made from your part-time work. The discrepancy will probably be larger if there’s a larger difference between the two incomes. Even a small difference between part-time income tax and what's owed can be an issue.

Understanding Your Pay Statement and W-2

You can find out how much is being withheld from a job’s income by checking your most recent pay statement or year-end W-2.

The W-2, or Wage and Tax Statement, is a year-end document that outlines your annual earnings and the taxes withheld. Pay statements, or pay stubs, offer a breakdown of each pay period's earnings and deductions, including federal income tax.

Can I Work Part-Time as a W-2 Employee?

Yes. Status as a W-2 employee is dependent on the level of control over work and how the employer pays the employee, rather than the number of hours worked.

You'll see multiple boxes if you receive a W-2 from your second job or part-time work. Initially, the document can look complex, but each box is clearly numbered and labeled. Here's a W-2 explanation of the various boxes:

  • Basic employee and employer information (Boxes A-E)
  • Taxable income for each listed tax (Boxes 1, 3, 5)
  • Taxes withheld for each listed tax (Boxes 2, 4, 6; usually next to income boxes)
  • Tip income (Boxes 7-8)
  • Verification code (Box 9)
  • Various benefits and distributions (Boxes 10-11)
  • Other income/codes (Boxes 12; usually multiple-lettered boxes)
  • Miscellaneous (Boxes 13-14)
  • State and local (Boxes 15-20)

Boxes 1-6 are most relevant to check your federal tax withholdings.

Frequently Asked Questions (FAQ)

Here are some common questions regarding part-time job tax withholding:

If I have two jobs, how does tax withholding work?

When you have two jobs, each employer generally sets up tax withholding based on the income from that particular job. This can result in too little federal income tax being withheld because the withholding may not account for your total income from both jobs. The article recommends making sure the W-4 at each job accurately reflects total income and adjusting withholding when necessary.

How does having multiple jobs affect taxes?

Having multiple jobs can result in insufficient tax withholding throughout the year. Withholding is often based on the income from a single job, so it may not reflect your total income. The difference can be especially noticeable when the second job pays significantly less than the primary job. Workers may also fail to update the withholding at their primary job after taking on additional work.

Why did my job not take out federal taxes?

There are several reasons why little or no federal income tax may have been withheld. Part-time or second jobs may pay lower wages, potentially placing the worker below the income threshold for federal income tax withholding. An incorrectly completed W-4 can also result in insufficient withholding. Independent contractors may also receive 1099s with no tax withholding because they are responsible for paying their own taxes.

Can I Work Part-Time as a W-2 Employee?

Yes. Status as a W-2 employee is dependent on the level of control over work and how the employer pays the employee, rather than the number of hours worked.

How can I avoid owing unexpected taxes when I have multiple jobs?

Workers can help avoid year-end tax problems by making sure withholding is properly set up at their second or third job and adjusting withholding at their primary job when taking on additional work. Setting aside a portion of each paycheck for potential additional tax liabilities can also help.

How can I check how much federal tax has been withheld from my paycheck?

A pay statement shows earnings and deductions for each pay period, including federal income tax withheld. The year-end W-2 also shows annual earnings and taxes withheld. The article notes that Boxes 1–6 of the W-2 are particularly relevant when checking federal tax withholdings.

 

Managing Tax Obligations with Multiple Income Sources

You can successfully avoid year-end tax problems by taking just a few steps to manage your withholdings throughout the year effectively. You can:

  • Make sure your second (or third) job’s withholdings are properly set up
  • Make sure your primary job’s withholdings are adjusted when taking on additional work
  • Set aside a portion of each paycheck for additional, unexpected tax liabilities.
Human resources or your supervisor can help check and set up withholdings. This is done by filling out a W-4 form.

Get Help with Payroll Taxes

It's crucial to understand the federal income tax implications of working a second job or part-time, to plan your finances effectively and avoid any unforeseen tax liabilities.

Stay on top of your tax and reporting obligations this year. Contact Workforce PayHub to streamline your tax reporting process with our expert payroll services.

Subscribe to our newsletter for more tax tips and updates on payroll processing throughout the year. 

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