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To confirm, your W-2 reported an excess contribution in box 12, and therefore less taxable income was reported in box 1. Also, your 401k confirmed it was an excess deferral for 2022 and return the excess plus earnings in 2023.

If this is correct then you will not enter step 9 that Tax Expert DaveF1006 mentioned above.

Please only follow the steps below:

1. Login to your TurboTax Account 
2. Click "Wages & Income" (under Federal) on the left side of your screen
3. Scroll  down to "Less Common Income" and click "Show More"
4. Scroll down to "Miscellaneous Income, 1099-A, 1099-C" and click "Start"
5. Select "Other income not already reported on a Form W-2 or Form 1099" and click "Start"
6. On the "Did you receive any other wages?" screen answer "Yes" and click "Continue"
7. Continue until you get to the "Any other earned income" screen, answer "Yes" and click "Continue"
8. On the "Enter Source of Other Earned income" screen select "Other" and click "Continue"
9. On the "Any Other Earned Income" screen enter "2022 Excess 401(k) Deferrals" for the description, enter the amount and click "Done".

If you receive the distribution of the excess deferral and earnings by April 15th then please note for the Tax Year 2023 tax filing due April 15, 2024: 

• Form 1099-R with code P in box 7 can be ignored if you reported the excess as described above in 2022. 
• However, the earnings on Form 1099-R with Code 8 in box 7 should be reported in 2023.

For your information, an excess deferral won't trigger a penalty on the return like an IRA excess contribution but if you do not take out the excess amount by April 15th (this date isn't the same as the due date of the return), then you are taxed twice on the excess deferral left in the plan. This happens once when you contribute it (with the steps above) and again when you receive it as a distribution (Form 1099-R). You can't include the excess amount in the cost of the contract even though you included it in your income.

Please see Pub 525 for additional information.

@next_milenium