we can't see your returns. your question suggests that you took a capital loss on the business failure. you actually may have been entitled to an ordinary loss. perhaps you should see a tax pro to check this out. if it was reported incorrectly on the 2019 return then the correction must be filed by 4/15/2023. If it's being reported incorrectly, waiting past the above date, you can no longer fix this and the IRS could deny future deductions.
