If I pulled out of my 401K form a job I had years ago do I need to report this on my taxes? Yes No

[DoninGA]

If you received a distribution from the 401(k) in 2023 then you will received a Form 1099-R from the plan administrator in January or early February.  The Form 1099-R is reported on your tax return.

To enter, edit or delete a form 1099-R -

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On IRA, 401(k), Pension Plan Withdrawals (1099-R), click the start or update button

[Opus 17]

Because you did not pay taxes on the money when it was contributed (for a standard pre-tax 401k), everything is taxable when you withdraw it, both contributions and earnings.  If you are under age 59-1/2, you will also be subject to an additional 10% penalty for early withdrawal unless you qualify for one of the exceptions.

Note that the broker is not required to mail the 1099-R until January 31, so you might not receive it until early February.  It might also be available through your online account.