I just got a tax bill dated 8/2023 that states "based on the tentative carryback application or carryback claim you filed" for 2020 Form 1040. I have no knowledge of filing any such claim. I have not had an operating loss since opening my business in 2016, and I have paid all taxes due through 2022. There is not a loss reflected on my tax returns and I have not filed an amended tax return. When I log in to my IRS account there are no records or documentation other than a balance that has been added for 2020. Any thoughts? I haven't tried to call the IRS yet, but I'm not hopeful I'll get to speak to a real person.
