with regard to the PTP make sure they did not provide you with a supplemental schedule showing ordinary income recapture. in most cases, when a PTP has losses that are suspended, there is ordinary income recapture on disposition They will include a worksheet to calculate capital gain/loss and ordinary gain/loss. this ordinary income recapture may almost entirely eliminates the loss carryover.
if you do indeed have a NOL it must be carried back to 2015 and any remaining carried forward to 2016 and if any is left used on 2018 and subsequent returns.
you do have the option to elect out of the carry back and would then carry the entire nol to 2018.
and yes you'll have different NOL's for reqular tax purposes and amt purposes. you will also have different capital gain/loss for regular tax and amt tax puposes.
form 1045A is what is used to calculate the nol and generally must be submitted regardless of whether you do a carryback or carryforward or use 1045 or 1040x. .
don't forget the state.
You get your refund faster by using Form 1045. If you use Form 1040X, you must use a separate Form 1040X for each carryback year. Both forms allow you to refigure your total tax liability for a carryback year. Generally, you must file Form 1045 on or after the date you file your tax return, but no later than one year after the NOL year. Form 1040X must be filed with three years after the due date, including extension. in either case 1045A must accompany the submission.
