First, make sure that the Forms 5498 show $6,000 in each box 1 and has the box-7 "IRA" checkbox marked. If not, the contribution is not being reported as a regular traditional IRA contribution. Make sure that the year of the Form 5498 corresponds to the year of the tax return on which the contribution was reported.
Even if you had compensation to be eligible to make a traditional IRA contribution, it's possible that a traditional IRA contribution is not deductible based on your participation in an employer-sponsored retirement plan. For a W-2 employee that would be indicated by the employer marking box 13 Retirement plan on the W-2 and if you failed to enter that marking into TurboTax, TurboTax won't know to check to see if your MAGI puts you or your spouse above the threshold for being able to deduct the IRA contribution. If wither of you were self-employed and made a self-employed retirement contribution, that would also be considered as being covered by an employer-provided plan.
Did the IRS change any item of income or other deduction that brought you above the threshold for being eligible to deduct a traditional IRA contribution when covered by an employer-provided retirement plan?
