Why isn't form 1040X available Turbo Tax stating won't be available till 3/25 but taxact has it?

Do not try to change anything on your return now.  When you amend, your Form 1040X has to be prepared from the return exactly the way it looked when you filed it originally.   You have to wait.   Once your return has been processed you will complete a Form 1040X   --- which is not yet available --- and submit it to amend the mistakes made when you filed your original return. It takes the IRS at least four months to process an amended return.

The Form 1040X you need is under revision and is not ready yet.  The Form 1040X does not become available in the software until March 25  (subject to change).

https://www.irs.gov/forms-pubs/new-information-for-form-1040-x-filers

The 1040X will not be available in the software until March 26.  You are correct that the the paper form is on the IRS site.   You can print out that 1040X form if you want to use it—-and prepare your amended return by hand to mail in instead of waiting to use the software and e-file it.

https://www.irs.gov/pub/irs-pdf/f1040x.pdf

I've seen the 3/25 date on a lot of responses in support, but the form availability sheet says 3/18.

Federal Individual Forms Availability (intuit.com)

Can you clarify if 1040X will be available on 3/18 or 3/25?

I'm asking because my ability to amend my return will make me eligible for stimulus, and the week may make all the difference.

Thanks.

The 1040X isn't just for amending Federal taxes. I need it to amend my state taxes too.