You'll enter income (regardless of the time frame it covers) in the year in which the payment was received. If you received a lump sum disability payment in 2018, that income will be entered in your 2018 return. Any taxes owed will be due in the year in which the payment was received.
*Please click the thumbs-up icon if this response was helpful.
**Please click "Mark As Best Answer" if your question has been resolved. Thank you.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
