Tax Day is a dreaded deadline for millions, but for nearly half of U.S. households it's simply somebody else's problem.
About 47 percent will pay no federal income taxes at all for 2009. Either their incomes were too low, or they qualified for enough credits, deductions and exemptions to eliminate their liability. That's according to projections by the Tax Policy Center, a Washington research organization.
Most people still are required to file returns by the April 15 deadline. The penalty for skipping it is limited to the amount of taxes owed, but it's still almost always better to file: That's the only way to get a refund of all the income taxes withheld by employers.
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