You will need to request to have the excess deferral returned by April 15th since otherwise, you will be taxed twice on the amount: Once when you contribute it, and again when you receive it as a distribution (unless the excess deferral was a designated Roth contribution).
To report the excess 401(k) contributions please follow the steps below:
- Login to your TurboTax Account
- Click "Federal" from the left side of your screen
- Scroll down to "Less Common Income" and click "Show More"
- Scroll down to "Miscellaneous Income, 1099-A, 1099-C" and click "Start"
- Select "Other income not already reported on a Form W-2 or Form 1099" and click "Start"
- On the "Did you receive any other wages?" screen answer "Yes" and click "Continue"
- Continue until you get to the "Any other earned income" screen, answer "Yes" and click "Continue"
- On the "Enter Source of Other Earned income" screen select "Other" and click "Continue"
- On the "Any Other Earned Income" screen enter "2021 Excess 401(k) Deferrals" for the description, enter the amount and click "Done".
If you withdraw the excess deferral plus earnings please note for the Tax Year 2022 tax filing due April 15, 2023:
2022 Forms 1099-R will be issued reporting the excess.
- Form 1099-R with code P in box 7 can be ignored if you reported the excess as described above in 2021.
- However, the earnings on Form 1099-R with Code 8 in box 7 should be reported in 2022.
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