If the trust is the beneficiary of the IRA or other retirement plan, and they took received distributions, then the trust should have received the Form 1099-R, not you. The trust would then pass on the distributions and report it, and any tax withheld on Form K-1. I recommend that you contact the trustee to determine why you received both a K-1 and a 1099-R reporting the same income. The custodian of the IRA or other qualified plan either paid you, or the Trust.
As for line 13 code b on the K-1, that is reported on Form 1040, line 25c, Federal income tax withheld from other forms. If the amount on line 13 of the K-1 doesn't flow to Form 1040, you can enter additional withholding as follows:
- Click on Search
- Type in "Tax Payments"
- Click on "Jump to tax payments"
- Scroll down to "Other Income Taxes Paid in 2024
- Next to "Withholding not already entered on a W-2 or 1099" click on Start
- Enter your withholding
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