Are the IRS announced tax year 2023 annual inflation adjustments for more than 60 tax provisions, including the tax rate schedules and other tax changes included?

They better be !

Many-to-Most are..

BUT
.....but some Tax forms are not ready yet.....so if you have any of those forms in your tax return, any adjustments related to that form will likely not be updated until the final form is released.

Here's where you can display the list of what's ready, and what's not:

Intuit App

And See this employee post for some info especially on W2 box 12

https://ttlc.intuit.com/community/retirement/discussion/box-12-code/00/3138299