If you didn't originally add the non-federally-deductible investment expenses (to be fair there is a help message that, if you clicked, would have told you you should add them so they can then be used for state returns), you must amend the Federal return by adding the expense. You need to select an update in the second half of the options for amending page (adjustments to income?). THEN select a second update to amend the state return, and simply click through because the necessary data has already been added and it then flows through to the amended state return.
So far so good, but now you are stuck in amended return hell if you originally filed electronically because it's an "error" to have electronic filing status for an amended return. So you finally just continue, at which point it's a simply a matter of printing it all out...NOT!
There is no attempt whatsoever to be helpful with double-sided printing. There are single page special instructions inserted before the federal 1040X (which really shouldn't be needed because those non-deductible expenses ARE NOT PRINTED anywhere, and certainly don't affect the original 1040 tax results). In the case of the state return that single page comes in front of the federal return attached behind the state return, completely messing up the pagination.
But in the end it works and you get the deduction and lower tax and all will be well.
