Filing 1099-B as nominee with both short-term and long-term gains

[carolineo]

Last year I sold some stocks that are in my name but partially owned by my ex-spouse, so I understand that I need to file a 1099-B for her portion of the sales.

All of the shares were of the same stock and sold on the same date, but they were purchased on different dates and thus some are long-term and some are short-term, and they have different cost bases. Do I need a separate 1099-B form for each lot, or do I report them in sum on one form? Or would it be two 1099-B forms, one for short-term and one for long-term?

[RobertB4444]

If they all sold on the same date then you can do them in two lots - all of the short term and all of the long term together.  You put 'Various' as the purchase date.  Make certain to separate the short and long term though.  They have different tax rates.

@carolineo