Two more
1) Sold a house last year and made some money on it. We had owned it for less than 4 years and made perhaps $20k. I do not need to mention this on taxes, right? I did get some kind of a payoff statement from the mortgage lender, but otherwise just have the 1098 related to what we did for mortgage interest before its sale.
2) Moving expenses: Let's say I made $100k last year (I didn't ) and paid $10k in fed taxes. Let's say that my employer gave me $20k in various otherwise-deductable moving expenses (i.e. if I'd paid them myself, I could deduct them). Let's say tax on these would have been $2k. My W2 has been brought up to $120k as income and $12k in taxes. I suppose I essentially file taxes as if I had no moving expenses, right, so that the extra $20k in income's tax liability is negated by the $2k extra they paid and it's a wash? Obviously, if I tried to deduct these moving expenses I would essentially be getting paid and screwing the system, so that cannot be right. Thing is, on form 3903 (moving expenses), line 3 (total expenses) works out to the $20k and line 4 works out to $0. Employer paid me $20k, but this is part of the box 1 on W2, and question 5 indicates that I could deduct these, which makes no sense, because I received the bumped wages and bumped taxes to negate that higher tax burden...
EDIT: Reviewing 2), it seems to be what I did last year. I was given a bunch of moving expenses back but instead of playing around with various forms and what not, my employer simply padded my income and in turn my taxes so that I wuold simply file as one making higher income. If they didn't estimate my taxes properly for the extra income, it's possible they either gave me too much or too little extra tax withholdings for the extra padding, but it wouldn't be a large effect, likely. I just looked at the relocation summary and it explictely states $0 for tax assistance, but I DEFINITELY had my W2 substantially padded for taxes withheld, so I did actually get the assistance, no doubt about it.