How many 1099 forms can Turbotax handle

There is no limit on the number of Form 1099-B that can be entered using TurboTax.

however, there is a limit to the number of transactions that can be imported  - 1500 for online, 2200- desktop (that's totals for all brokers). there may also be a $ limit of $9,999,999 per line on 1099-B

Isn’t it 1500 each broker?

I thought it was 1500 per each brokerage account? are you sure is in total?

According to this it is per brokerage account.

https://ttlc.intuit.com/community/entering-importing/help/how-many-stock-transactions-can-turbotax-online-handle/00/25644