I've been following this thread. My question is if there is only US source income listed in part ll of Schedule K-3 and no entry in Part lll of Schedule K-3 and nothing in Box 21 of Schedule K-1, do I need to report the Schedule K-3 if it's generated? It won't be generated until Aug 2023. If I uncheck the box on line 16 and file electronically now, do I file an amended return electronically (if needed) or do I have to do it by paper?
