You're right, it should be 0. TurboTax asks for the Non-Massachusetts Portion of Unemployment Compensation. That amount should be 0 in the third column of the form the error is on. The second column is the Massachusetts portion and should have the entire amount of unemployment, since Massachusetts taxes unemployment, even if it is given to nonresidents. You may need to enter 0 both in the third column and in the field at the top where it says there is an error for it to fix itself. If it is still giving errors, you can go back through the Massachusetts state return and make sure to enter 0 as the Non-Massachusetts portion of unemployment compensation.
