This help article says it's 1,500 for the Online version
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-import-my-1099/00/26254
And see this one. It says Online can handle 10,000. Yeah there must be a difference between import and handle.
https://ttlc.intuit.com/community/entering-importing/help/how-many-stock-transactions-can-turbotax-o...
