As far as getting creamed on the taxes, 2gigch1…
Your divorce agreement should have a section to spell out how to handle the tax deductions for each child (and if it doesn’t for your state, make a point to add an addendum). Custody arrangements don’t have a thing to do with taxes.
Based on my experience here in Colorado, anything you mutually agree upon can be made binding.
My recent ex and I have three kids. For tax deduction purposes, while they’re all of deductible age, I get to claim two, she gets to claim one. When the first ages off, then I get one and she gets one. When we’re down to one, I claim him. This is all spelled out in the divorce papers.
This is my one compensation for having to pay out (currently) $22K a year in child support. Everything I’ve found so far says child support cannot be written off. Right now, I’m paying lots of taxes on income I just hand over to her to mis-handle and waste on big screen HD TV’s (not that I’m bitter or anything). The two-kid-deduction thing is supposed to give me a bit back on that.
FYI, “spousal support”, aka: alimony, is deductible and the recipient has to claim it as income, too.
As I read the rules, I also qualify for the head-of-household status which gets me closer to married than single on the tax charts so there may be some benefit there. With this and the ability to write off child-care costs, I’m actually hoping I’ll get a refund this year.
As far as the return while separated thing? We just agreed to split the return minus a few “deductions” to compensate me for costs that she owed me (for pawning my possessions among other offenses). If you’re both working, the debate might be to split the return (or payment) based on proportional income levels or simply 50/50. That’s a political answer, in my opinion.
More advice: make sure you change your W4 with your employer to update your withholding amounts.