Complaint / review text:
Turbo Tax 2013 makes an (egregious) error when accounting for prior year state tax refunds, at least for CA refunds: TT changes the "2012 CA state refund" (as imported from 2012 tax return) into a "2013 CA estimated tax and other payments" (CA Long Form 540NR 2013, line 82) on the CA return. This affects the "tax due/refund" on the FED return and other state returns you might file!
Situation: I file two state returns (CA-nonresident, HI-resident), as well as FED. I completed FED, CA, and HI and filed CA & FED electronically in early Feb 2014 (I have to file HI manually). I received notice in mid-February from CA that my CA State return had been corrected - my Turbo Tax-calculated 2013 refund was reduced exactly by my 2012 CA refund. Upon investigation (and I mean reviewing every form, number, input, manual calculations, etc.), I found that Turbo Tax applied my 2012 tax refund as a prepayment to my 2013CA tax! I was stunned to say the least, because this ERROR has quantitative implications for my FED and HI return: they are wrong as well!
In the intervening weeks, I have redone my 2013 tax using Turbo Tax many times and can find where the error shows up, but I cannot find the reason - it MUST be in the Turbo Tax algorithms. I now have to file an amended FED return (I have not filed my HI return, yet, so I can fix that manually). I now DO NOT TRUST Turbo Tax to do any calculation correctly. I have to check every little item by hand. Turbo Tax 2013 was not only a waste of my money. It cost me considerably in the time and effort to figure out what it was doing wrong. I'd be interested to hear if Turbo Tax has owned up to this problem!