You Can Check the status of your federal income tax refund using IRS's refund tool.  Have a copy of tax return handy. 
You will need to provide following information from your return .

• Social Security number ((or Individual Taxpayer Identification Number)
• Filing status ((Single, Married filing joint, Married filing separate, Head of household, or Qualifying widow)
• Exact refund amount shown on your return

You can also check the status of your refund on your smartphone by downloading the IRS's mobile app, IRS2go.