If the sale date was prior to 2020, it should have been reported on prior year 1099-B and included on that return. If it is in fact a 2020 Form 1099-B, the you can either use a date in 2020, or report your Form 1099-B as summary transactions, and you won't have to list the dates of acquisition or sale.
It will require you to either upload to TurboTax a copy of your Form 1099-B, or mail it, with Form 8453, (which TurboTax will generate). To do this in TurboTax Online:
After entering all your category summaries, Look for "To finish reporting these sales, follow the mailing instructions" and click on the link for these instructions:
Mailing Instructions
Take a moment to double-check that your statements are complete. For each sale listed, there should be:
- A Description
- Date Acquired
- Date Sold
- Sales Price
- Cost Basis
- Gain or loss for each sale
- A sale category based on how the sale was reported to you and the IRS
In some uncommon cases, there will be an adjustment code and adjustment amount.
NOTE: Any sales summaries that include only Box A or Box D sales, and which have no adjustments to gain/loss, do not need to be included on a statement mailed to the IRS.
Here's how to mail your statements:
If you are e-filing your tax return, then mail your statements along with Form 8453 to:
Internal Revenue Service
Attn: Shipping and Receiving, 0254
Receipt and Control Branch
Austin, TX 73344-0254
If you are not e-filing, then mail your statements with your entire tax return to your local IRS office.
* The questions you are asked by the program may vary depending upon what, if anything, you may have already entered related to investment sales.