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Amending a 1120 in ProSeries

SOLVEDby IntuitProSeries Professional27Updated September 21, 2021

Before you start:

  • Amended Form 1120-H returns can't be filed electronically using ProSeries software.
  • If you e-filed the original return, it must have an accepted acknowledgement to e-file the amended return.
  • If the original return was paper filed make sure original return and extension are not marked for e-file.
  • Before starting we recommend making a backup of the original return. See How to copy or backup client files using ProSeries

To generate the amended return for an 1120:

  1. Open the original return.
  2. If you are e-filing the amended return scroll down to Part VI - Electronic Filing Information. Check the Amended Return boxes for the Federal and any amended states.
  3. Press F6 to bring up Open Forms.
  4. Type X and select OK to open the 1120X.
  5. In the Amended Return Smart Worksheet, checkbox A. This freezes the amounts in Column A.
  1. Open the state return.
  2. Go to the Help menu and select Help Center.  Select Tax Help on the left, if necessary.
  3. Review the Tax Help Instructions to determine how to amend the state return. 
  4. In most cases, the state will have an amendment form. Check a box to freeze the original state amounts.  A column will then show the amounts that were originally reported on the state's main form.
  5. Go back to the federal return.
  1. Make the needed changes to the original forms, schedules, and worksheets.
  2. Open Form 1120X.  
  3. Review Column C. This will show the results of the changes you made.
  4. If you have a state return attached, go to the state return and make any necessary state changes.
  5. Open the Amended State Form. The changes will show in the Corrected Amount Column.
  6. Save the return.
  7. Run Final Review on both the federal and state return.
  8. If you will be mailing the amended return, print, and mail it to the service center where the original return was filed.

To generate the amended return for an 1120H:

  1. Open the original return.
    • Amended Form 1120-H returns can't be filed electronically using ProSeries software.
  2. On Form 1120-H, checkbox (4) to indicate an amended return.
  3. Make the needed changes to the original forms, schedules, and worksheets.
  4. If you have a state return attached, go to the state return and make any necessary state changes.
  5. Open the Amended State Form. The changes will show in the Corrected Amount Column.
  6. Save the return.
  7. Run Final Review on both the federal and state return.
  8. If you will be mailing the amended return, print, and mail it to the service center where the original return was filed.

To e-file the amended return:

  1. Open Form 1120X.
  2. In Part II enter the explanation of changes. What you enter is transmitted to the IRS with the electronic return.
  3. PDF attachments that were transmitted with the original federal return aren't transmitted with the amended return. You must attach any applicable attachments to the amended return.
  4. Open and review the state return, if applicable. The amended state return isn't transmitted with the amended federal return. If the amended state return can't be filed electronically; it needs to be mailed to the state taxing agency.
  5. Run Final Review on federal and state return if needed to make sure the return is clear of errors
  6. Transmit the client from the EF Center Homebase or EF Now.

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