TAX RELATED QUESTION (not tsp):
Hey guys, I was wondering if anyone could help me out with a quick tax question. I currently am Single-0 on my tax paperwork, looking to maximize my paychecks however. If I change to a Single-1 though, will it show up on taxes for the ENTIRE year of 2013 that I am single-1, therefore decreasing my return? I don't want to switch my numbers and have it backfire; taking away my tax deductions I would have gotten back as a single-0. Or are taxes given back by the yearly amount withheld?
Should I wait until the last pay period of the year before switching to single-1?