Just realized underpayment penalty doesn't apply to me due to 1120 form after E-file.
Do I need to file a amendment to get the penalty back ?
There are few relative discussion summary as below:
1. IRS returned a refund check for this overpayment.
2. Should wait for tax due payment is made and file e-file amendment.
3. Don't need to amend 1040. IRS will do the math automatically and refund. Like this TurboTax Official Guideline
What's your suggestion or experience for this situation ?
