How do I make changes to a extended return?

@jbutler5373 

if you have yet to file, then just make the changes on the tax form before submitting.

if you have already filed, then you'll need to amend, using form 1040X

To change a return If you haven't mailed or efiled yet, see

https://ttlc.intuit.com/community/tax-topics/help/i-want-to-change-a-return-i-ve-printed-but-haven-t-mailed/00/27616

If you haven't efiled or mailed your return or it rejected you can go back in to finish and change anything you want.  Do not click on Amend!

Click on Add a State to let you back into your return.

From Tax Home (the first screen you see after you sign in), scroll down to Your tax returns & documents. You may have to select Show to open the drop down.

Select 2021, and then select Add a State (you're not actually adding a state, this is just the workaround).