This probably affects only me, and no one else in the world, but if you are a owner of a Nebraska based LLC partnership, and you live in another state, then you get form K-1N from your LLC describing Nebraska tax withheld. As far as I can find, there is no tax software anywhere that supports this form, and you have to create a Nebraska non-resident tax return on paper by hand. I figured out a hack to get my tax return to come out correctly.
First, complete your tax return up to the point where you are ready to file.
Then add a W-2 for your LLC. Fill in NE in box 15, fill in your withholding from the K-1N in box 17. Then close the W-2. TaxAct will complain about this being a mistake, ignore this.
Click on Deductions -> Itemized deduction – Taxes you paid -> Other state and local income taxes paid. If you filled in your K-1N withholding here earlier, remove it.
Then print your Nebraska return.
Then come back and delete the W-2 you added (since it is bogus, and the software won’t let you file your federal return with it there), and go back to the Other state and local income taxes paid and fill in the K-1N withholding.
Now go e-file your federal and resident state returns. When you print them, double check to make sure nothing changed and the NE return matches the federal return, it should since the fake W-2 and the “Other state income taxes” balance each other out.