Amending an S Corporation return (1120S) in Lacerte

If you're looking for how to amend a different return type, select an option here:

To amend an S corporate return and its Schedule K-1's:

Before you start: We recommend that you make a copy of the client file before amending it.

1. Go to Screen 79, Amended Return (1120S).
2. Select the box Amending federal return (MANDATORY).
   • If you're amending Form 1120-S due to missing Elections, select the box Filing pursuant to section 301.9100-2.
3. Enter Tax paid with original return (line 22c less 23d) if applicable.
4. Enter Overpayment from original return (26) if applicable.
5. Enter the Original overpayment applied to 2023 estimated tax (27) if applicable.
6. Select the box Include revised estimates in letter (if the S corporation is required to pay estimates).
7. Select Explanation of Changes.
8. Enter the following fields:
   • Description
   • Line Number
   • Original amount
   • Amended amount
   • Explanation (Ctrl+E)
9. Under the 1120S Amended Return panel, select Add to add additional changes.
10. Repeat steps 7–8 for each change.

See E-filing an Amended Business Return for additional information.

To amend an S corporate return and its Schedule K-1's in 2013 and prior years:

1. Go to Screen 3.1, Misc./Other Info./Amended.
2. Scroll to the Amended Return (Form 1120S) section.
3. Select the box Amended Return (MANDATORY). This will:
   • Select the box on Form 1120S (and mark it as "Amended return");
   • Print a client letter for an amended return;
   • Select the box Amended K-1 on the Schedule K-1 for each shareholder.
4. Enter Tax paid with original return (line 22c less 23d) if applicable.
5. Enter Overpayment from original return (26) if applicable.
6. Enter the Original overpayment applied to 20XX estimated tax (27) if applicable.
7. Select the box Include Revised Estimates in Letter (if the S corporation is required to pay estimates).