I am going to be using IRS transcripts to prepare back taxes for one of my clients that surfaces every few years. He did work some of the time in NC (other states are TX & CA, so I have them covered, lol). Is there any way to easily get withholding info from NC? CA has me spoiled; we now have all withholding and estimate payments at our fingertips on the FTB website. I'm not sure how many w-2s or how much income is involved, but it is not going to be a lot. Just don't want him to have tax due for whatever period he worked there.