please chek: http://www.irs.gov/retirement/participant/article/0

http://www.irs.gov/retirement/participant/article/0,,id=188235,00.html

 

2012 IRA Contribution and Deduction Limits - Effect of Modified AGI on Deductible Contributions If You ARE Covered by a Retirement Plan at Work
If you are covered by a retirement plan at work, use this table to determine if your modified AGI affects the amount of your deduction. If Your Filing Status Is... And Your Modified AGI Is... Then You Can Take... single or head of household $58,000 or less a full deduction up to the amount of your contribution limit. more than $58,000 but less than $68,000 a partial deduction. $68,000 or more no deduction. married filing jointly or qualifying widow(er) $92,000 or less a full deduction up to the amount of your contribution limit.  more than $92,000 but less than $112,000   a partial deduction.  $112,000 or more  no deduction. married filing separately  less than $10,000   a partial deduction .  $10,000 or more  no deduction. If you file separately and did not live with your spouse at any time during the year, your IRA deduction is determined under the "single" filing status.