What does the Form 1040 IRA deduction mean?
In the Form 1040 Contributions to an IRA or Roth deduction, it asks whether you contribute to a traditional IRA. If one has already had his 401(k) account from his employer and the contribution amounts can be found in his W-2 box 12, should he answer yes and enter the contribution amounts from his W-2 into the Form 1040? It seems the contribution amounts in the W-2 box 12 have already been deducted from one’s gross income and he cannot take the deductions again. Is it correct? Can you explain it?