I received a form 1099-MISC for the SoCal WaterSmart turf removal program rebate we received 2022. I reported this on my federal tax form and I just received a letter from the IRS asking for more information regarding the rebate and stated it may be subject to Self-Employment Tax for social security and medicare taxes. Can you confirm this is correct? If so, how do I compute this through Turbo Tax once I already completed my taxes?