1099 NEC's -

[bmrandle]

I have 3 NEC's.  Can I combine all the expenses and put it with one of the 3 Nec's or do I have to break up the expenses and put them on all 3 Nec's?

[MaryK4]

You can combine all expenses on one Schedule C if the 1099-NECs are for the same type of work. However, if they are for different lines of work (e.g., rideshare driving and lawn care), you must file a separate Schedule C for each and split the expenses between them. 

It is best to enter each 1099-NEC separately in TurboTax. This makes it easier for the IRS to match your return with the records they receive from payers.
To avoid generating multiple Schedule Cs for the same business, ensure you link all three 1099-NECs to the same business profile.
 

Once the 1099-NECs are linked to a single business, you enter your total business expenses in the "Business Expenses" section of that specific Schedule C. You do not need to break them up or manually attribute them to individual 1099s.