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How do I enter my adjusted cost basis for my grantor trust?

SOLVEDby TurboTax86Updated January 13, 2023

For the sales listed on your 1099-B, you may need to enter their adjusted cost basis. To add this information in TurboTax do the following steps:

  1. Sign in to TurboTax and open or continue your return
  2. Select Search and search for 1099-B
  3. On the Did you have investment income in 2022? screen, select Yes
    • If you’ve already added some investment info, select Add investments
  4. On the Let's import your tax info screen, search for your bank and import your forms
    • If you don’t want to import your info, select Enter a different way, then Stocks, Bonds, Mutual Funds
    • Continue until you get to the Now, choose how to enter your sales screen, and select One by one then Continue
  5. On the Review your sales screen, select the pencil icon next to one of your sales
    • You may not see this screen if you chose to enter your 1099-B another way
  6. On the Now, enter one sale on your 1099-B screen, check the box next to The cost basis is incorrect or missing on my 1099-B and select Continue
  7. On the Let us know if any of these situations apply to this sale screen, check the box next to None of these apply and select Continue
  8. On the We noticed there's an issue with your cost basis… screen, select I know my cost basis and need to make an adjustment and enter the amount
    • You can find your adjusted cost basis on a supplemental form provided by your financial institution. It’s usually available by mid-February along with Form 1099-B
  9. Select Continue
  10. Your adjusted cost basis has been added for your sale. Repeat steps 5-9 for any other sales you need to modify

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