I recieved a state tax refund on my 2015 taxes. In 2016, I received a state assessment and paid additional state taxes for 2013, 2014 and 2015 as a correction. Can I deduct the additional 2015 state taxes I paid when entering the 2015 state tax refund as income? Can I deduct what I paid in 2013 and 2014 taxes as well?
