Get your taxes done using TurboTax

You may elect to enter a summary of your transactions.

Your brokerage statements should include a summary of your transactions, grouped by sales category, for example, "Box A short-term covered" or "Box D long-term covered." You will enter the summary information instead of each individual transaction.

1. Open or continue your return (if it's not already open) and search for stock sales
2. Select the Jump to link in the search results
3. Answer Yes to Did you sell stocks, mutual funds, bonds, or other investments in 2021?
   • If you land on Your investment sales summary, select Add more sales 
4. On the OK, what type of investments did you sell? screen, select Stocks, Bonds, Mutual Funds, then Continue
5. On the Let's import your tax info screen, select I'll type it myself
6. Step through the interview and select Sales section totals when prompted to choose how to enter your sales
7. You'll now be able to enter the total proceeds (sales) and cost basis, along with the sales category. Refer to your 1099-B for the amounts and category. When finished, select Continue
8. You can add additional sales totals by selecting the Add another sales total on the Review your sales section totals screen.

If you choose the option to enter a summary instead of entering each sale, then you have to mail a copy of the brokerage statement listing the individual sales.  This is an IRS requirement.

If you e-file, TurboTax will produce a Form 8453. You print the Form 8453 and attach the brokerage statement(s) to it.

If you file by mail, attach the statement(s) at the back of your tax return, after all the forms and schedules.

In either case, click the "mailing instructions" link in the message at the bottom of the TurboTax page and follow the instructions that it displays.