you need to look at certain parts of irc section 1256 to see if your trades qualify as 1256 contacts, if they do they're reported on form 6781
https://www.law.cornell.edu/uscode/text/26/1256
here are the parts to look at
1256(b)(1)(C) - nonequity option
1256 (g)(3) - defines nonequity option
1256(g)(5) - defines listed option
1256(g)(7) - defines qualified trading platform
