Get your taxes done using TurboTax

You also can enter a summary in lieu of individual transactions.

Here's how:

1. Open or continue your return (if it's not already open) and search inside TurboTax for the phrase stock sales.
2. Select the Jump to link in the search results.
3. Answer Yes to both Did you sell stocks, mutual funds, bonds, or other investments? and Did or will you receive a 1099-B form or brokerage statement for these sales?
   • If you land on Here are all your 1099-B sales, select Add sales from a different brokerage. Then answer Yes to Did or will you receive a 1099-B form or brokerage statement for these sales?
4. When asked how you want to enter your 1099-B, select I'll type it in myself.
5. Select or enter your brokerage on the next screen and continue.
6. On the following screen (Tell us about...), answer the questions until you reach the next screen. Select the second option, Let's enter a summary instead, and select Continue.
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.

For further information please see the TurboTax website: How do I enter a large number of stock transactions in TurboTax Online?