If you are over age 50, you automatically have a catch up contribution of $7,500, bringing the allowed maximum contribution to your 401(k) plan to $31.000.
There should be no excess and TurboTax should accept your actual contribution. Contributions to your 401(k) plan are made through salary deferrals and are reported on your form W-2, box 12 with code D. They are not reported anywhere else on your form 1040.
Please check and comment here if you have further questions.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
