If I have multiple 1099-nec payments do I select which transactions are tax deducible for specific 1099s or does it matter?

[VolvoGirl]

Not sure I understand your question.  You have to report all  the 1099NEC as income.  Is this for Schedule C self employment income?  Then later you enter all your expenses even for the things you got reimbursed for.  That will deduct them.

Actually you can just enter them as Other self employment income or as Cash or General income. You don't need to get a 1099MISC, 1099NEC or 1099K. Even if you did you can enter all your income as Cash. Only the total goes to schedule C. You should be entering the income from your own records.

You can enter Self Employment Income into Online Deluxe but if you have any expenses you will have to upgrade to Premium version. Or use any of the Desktop CD/Download programs. You can buy the Desktop CD or the Download program here,
https://turbotax.intuit.com/personal-taxes/cd-download

How to enter income from Self Employment
https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/...