When helping staff members fill out W-4 forms, they may ask if they can be exempt from federal withholding.
Here are some points to keep in mind:
Did the employee have a tax liability in the previous year? If he or she received a refund of all federal income tax paid (or had a right to a refund), the employee had no liability and can claim to be exempt.
Does the employee expect to have a tax liability this year or expect to qualify for a refund of all federal income tax paid?
To make this determination, the W-4 worksheet asks:
1. Can the employee be claimed on someone else’s income tax return this year (such as a parent)?
2. What level of income does the employee expect this year?
3. In addition to earned income, does the employee expect to receive more than $250 in unearned income (such as interest or dividends) this year?
Years ago, employers were required to send copies of questionable W-4s to the IRS for evaluation. However, this requirement was dropped years ago. The IRS may still determine that an employee is under-withholding based on information reported on W-2s. If your employee is found to have a serious under-withholding problem, your payroll department may be contacted and instructed to withhold at a more appropriate rate. (IR 2005-45)