In 2017 I got a 1099G for a state tax refund.
The state tax refund was on my 2015 return (not my 2016 return, which would've been the more common case).
TurboTax asks for "total of all your payments and withholding", and the help link tells me what items to include when computing the total amount.
Should I add up all those items from my 2016 return or from my 2015 return?
