With recent tax law changes, the IRS urges taxpayers to look into whether they need to adjust their paycheck withholding and submit a new Form W-4 to their employer. Taxpayers can use the updated Withholding Calculator on IRS.gov to do a quick “paycheck checkup” to check that they’re not having too little or too much tax withheld at work.
Taxpayers who use the calculator and determine that they need to change their withholding must fill out a new Form W-4, Employee’s Withholding Allowance Certificate. Employees will submit the completed Form W-4 to their employers. Read more