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.
The Calculator helps you identify your tax withholding to make sure you have the right amount of tax withheld from your paycheck at work.Where’s My Refund
What You Will Need:
Social security number or ITIN
Your filing status
Your exact refund amount
If you're an individual taxpayer, you can use this tool to view:
Your payoff amount, updated for the current calendar day
The balance for each tax year for which you owe
Up to 24 months of your payment history
Key information from your current tax year return as originally filed.