Any security position (stock/ETF shares or equity/ETF options) closed at tastyworks will the total profit and loss based on the total proceeds and cost basis in the Proceeds from broker and barter exchange transactions section of your Consolidated 1099, which is used to fill out Form 8949 when preparing your taxes. Your trades will also separate any position(s) subject to short-term or long-term capital gains.


To learn more about the Consolidated Form 1099, including Form 8949, then please visit our form guide by clicking here.


What about positions transferred via ACAT?

Any stock or options position that transferred to your tastyworks account via ACAT (Automated Customer Account Transfer) has been reported to our clearing firm, Apex Clearing Corporation. The trade price listed for any transferred security on the tastyworks platform may not be your actual cost basis since the platform will use the closing mark on the day the transfer came in as the trade price. To learn more about the cost basis of transferred positions, please click here.


What can affect my overall cost basis?

The short answer: a lot of things. The following list includes but is not limited to:

  1. Dividend Reinvestment
  2. Adding to a position (stock or options)
  3. Splits
  4. Spinoffs
  5. Mergers

Any adjustments to your cost basis may also appear in your 1099-B.