Go to this TurboTax website and click on Sign up in the upper right to create a new account - https://turbotax.intuit.com/personal-taxes/online/file-your-own-taxes/
It is still saying this feature is temporarily unavailable
@poohie1342 wrote: It is still saying this feature is temporarily unavailable
Clear cache and cookies on your web browser.
See this TurboTax support FAQ for clearing cache - https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-system-requirements/clear-cache/L8EEqjh3R_US_en_US?uid=luoad81o
See this TurboTax support FAQ for clearing cookies - https://ttlc.intuit.com/turbotax-support/en-us/help-article/data-systems/delete-cookies/L009gaGqG_US_en_US?uid=luoadta2
If you still encounter the problem then change your web browser to one of these that you are not using - Google Chrome, Mozilla Firefox, Microsoft Edge