State tax filing

The losses go on the federal return, sch A. The income goes on the federal and goes to OK. The OK return begins with the federal AGI so you need to amend the federal before you do the OK.

You need to:

1. File an amended Federal return reporting the winnings and maybe the losses
   • Save a copy of the original return before doing an amended return.
   • See how to file an amended return.
   • How do I enter a W-2G?
   • How to enter gambling losses
2. File an original OK return for the winnings
3. If you will owe money - make that payment by April 18 to the IRS and state to avoid penalty or interest.
4. Follow your amend at track an amended return 

Related:

Here is a great FAQ to show the math for amended returns. 

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