@johnfrem you would need to file the non-filed returns to recognize the NOLs before you can show these on 2018 and 2019. My best suggestion would be , please see a tax professional to help get this behind you. Hopefully you don't own anything from the un-filed years -- interest and penalties can be expensive. There could also be failure to file ( without a good cause ) penalty. Just see a tax professional -- it can and needs to be straightened out.
You said you claimed exempt ( from withholding for federal taxes ) for 2019 ( or 2018 and 2019 or what ) and the IRS has signed off on that ? Please make sure that it is so.
