This announcement from the IRS today, will give you some idea of when you can file your 2012 taxes:
The IRS will begin accepting tax returns on January 30th, after updating forms and completing programming and testing of its processing systems. This will reflect the bulk of the late tax law changes enacted Jan. 2. The announcement means that the vast majority of tax filers — more than 120 million households — should be able to start filing tax returns starting Jan 30.
The IRS estimates that remaining households will be able to start filing in late February or into March because of the need for more extensive form and processing systems changes. This group includes people claiming residential energy credits, depreciation of property or general business credits. Most of those in this group file more complex tax returns and typically file closer to the April 15 deadline or obtain an extension.
The IRS will not process paper tax returns before the anticipated Jan. 30 opening date. There is no advantage to filing on paper before the opening date, and taxpayers will receive their tax refunds much faster by using e-file with direct deposit.