In California, as in most of the United States, your state and federal income tax returns are generally due on April 15 each year. In 2023, due to that date falling on a weekend and April 17 being a holiday in some states, the income tax due date was April 18.

If you are unable to finish your taxes on time, you can apply for an extension from both the federal government and the state, which is automatically granted. This gives you six months to complete the return, but you are expected to pay any money you owe at the original deadline. If you pay less than 90% of your eventual tax liability, you will end up with a late-payment penalty.

In terms of TurboTax, this is a software package for preparation of tax returns, produced by Intuit. There are many versions of this software, depending on your situation. TurboTax is a legitimate product, but there have been controversies surrounding its free version, including a false-advertising charge by the Federal Trade Commission. Generally, the free version is only available to filers with fairly simple financial situations; someone with stock and cryptocurrency investments such as yourself would need to use a paid version of the software.
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