After you file

If your 1099-G is for 2016, you cannot add it to your 2017 income tax return. You may have to amend your 2016 income tax return. 

First, check if you have to amend your 2016 income tax return. Click on Do I Need to Amend my Tax Return?

If you do have to amend your 2016 income tax return, click on How to Amend (Change or Correct) a Return You Already Filed to amend your income tax return.  

To add the 2016  1099-G to your amended 2016 income tax return(s) and it is for:

• Unemployment or family leave, click on Where do I report a 1099-G for unemployment or paid family leave?
• If the amount is for a state or local tax refund that you received in a prior year and you did not itemize your deductions, you do not have to amend your income tax return. Otherwise, click on Where do I enter a 1099-G for a state or local tax refund?

Related information:

• What did I get a 1099-G for?

• Where's My Amended Return? - IRS.gov