Does anyone have any suggestions as to where I can get some explanations on how to fill out the tax forms for withholding taxes from my salary? (W4 Employee Withholding allowance certificate). I keep reading over it, and I have no idea how to do things. Does anyone have a site which will walk me through it like I was 3 years old? My particular issues are do I classify myself as single or head of household, or both? It says head of household is for unmarried peoople paing more than 50% of home upkeep costs. This includes apartments too, right? Not just homes you own? And deductions, how do I know if I'm going to be itemizing deductions? It says I can itemize state and local taxes, but how do I know how much that's going to be? This is also one of those things where I make seperate deductions whether I'm "single" or "head of household". I'm getting that feeling that I'm going to be audited by this time next year.