You can no longer start a new 2023 tax return in TurboTax Online. It is closed for the year. If you still need to file a 2023 tax return you have to use the CD/Download TurboTax software. After you install the software on your Windows or Mac computer, start the program and click "Begin" or "Start a New Return." You can prepare as many tax returns as you need with one copy of the software.
