I do not understand WHY I receive a 1099-G for my state income tax refund? It's confusing (the year-to-year thing). Can someone give examples of how this works? In my case I pay estimated state taxes and usually overpay to be safe. Since this money comes out of my savings and has already been taxed why is it taxed again? I did not itemize in the year the estimated payments were made. Can you explain this CLEARLY. Turbo tax cannot. Thanks, Bill