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Tiffany Costigan
Level 3
July 16, 2026
Question

1120-S, Form K-1, Codes AC & AJ

  • July 16, 2026
  • 3 replies
  • 41 views

Hello, I've noticed that many other tax software programs automatically generate codes AJ and AC on K-1s. I'm using ProSeries Professional for an 1120S return, and those codes are not generating automatically. Can you please advise where these codes should be entered or how to generate them in ProSeries Professional? Thank you.

    3 replies

    K
    KateCan
    Level 6
    July 20, 2026

    Hi ​@Tiffany Costigan, here is a support article you can review: Generating and entering S corporation K-1 in ProSeries with Other income, Other deductions, or Other information.  If you need further assistance, please contact ProSeries Support. 

    K
    KateCan
    Level 6
    July 20, 2026

    You might also want to see this related thread. 

    T
    Tiffany CostiganAuthor
    Level 3
    July 20, 2026

    Good afternoon, and thank you for your reply. I had seen those articles before and read through them. Unfortunately, those apply to entering information on the individual 1040 form. My question is specifically about preparing an S corporation, 1120S return.

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