@TAMR917995
Sorry...the "Online" software is only for 2024 taxes right now.
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To work on 2021, 2022, 2023 taxes, you need to buy and download/install each year' software separately using the "Desktop" software...which requires a full Windows or MAC computer. And those years would need to be printed out by you and mailed in. You can buy them here:
TurboTax® 2023 Prior Year Tax Prep - File Past Years' Taxes
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Don't attempt to buy TurboTax for 2020 or any earlier years anywhere else....you won't be able to install or update to that year's proper forms.
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For years prior to 2021, you'd have to get the paper/PDF forms directly from the IRS's, and State's forms, if needed, using their own websites to download the forms and manually prepare, then file by mail.