On Wednesday the IRS posted a NEW W-4 Form for 2018; the Employee's Withholding Allowance Certificate and Personal Allowances Worksheet . It is recommended that employees consider re-doing this form and worksheet each year as life situations may have changed and you may want to consider instructing your employer to change your withholding.  

The IRS also has a new Online Calculator.  If you are an employee, the Withholding Calculator helps you determine whether you need to give your employer a new Form W-4. You can use your results from the Calculator to help fill out the form and adjust your income tax withholding.  

The IRS encourages everyone to use the Withholding Calculator to perform a quick “paycheck checkup.”  This is even more important this year because of recent changes to the tax law for 2018.