Thanks so much, Helen.
I just downloaded the CSV of the data from my Fidelity Investments account and it contains ~1,320 detail records.
The CSV has "summary" and "total" lines, too. I would guess that these don't contribute to the count that TurboTax sees on import, but even if they did, the total is ~1,830.
Importing the account causes TurboTax to go braindead. e.g. a click on the "file" menu does not display the menu. The top bar reports "(not responding)". A task display shows heavy CPU for maybe half a minute. Then it goes calm, but still doesn't show the menu. Another click on a menu shows the same result. Lots of CPU, but no display. I think that is "braindead". This malfunctioning is probably due to memory corruption.
Yes, I see that I will need to send paper to the IRS, given that TurboTax cannot handle it. The web help page that I quoted gives the inaccurate maximum, but doesn't give the mailing address, which you helpfully provided.
It would be nice if that page had the mailing address in it, too. Better, an accurate maximum might be good. Something like 500 or so. Something truthful.
