State tax filing

You have to use any supplemental information that you have, or the brokerage has, to break out just the portion of the tax-exempt interest that came from NJ bonds.  Nobody's software can "automatically" do that breakout for you.

Since box 8 on a 1099-INT comes from individual bonds you owned, the Supplemental information after the consolidated tax form the brokerage supplied to you, should show each bond, and the box 8 interest received from it.  IF not, call your Broker and ask how to find it.

In the software, you would edit the 1099-INT that has box 8 $$, and on a page following the main form, you would break out interest from NJ (and any US territory) as follows (example is for an NC resident):

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