We have a partnership. When we enter the total revenue amount in the box, should it be 50%? or does the software account for the split automatically?

[DanPaul03]

Each partner should be issued a K1 with their share of the partnership.  The K1 is what is entered into TurboTax for personal taxes.  

If you need to create the K1's, you will need TurboTax Business.