The $26,000 that you contributed to your employer's retirement plan is not an IRA contribution. Go back to Deductions & Credits -> Retirement and Investments -> Traditional and Roth IRA Contributions and remove the $26,000 entry that you made there. amounts shown in box 12 of your W-2 are to be entered only in box 12 of TurboTax's W-2 form, nowhere else in TurboTax.
