To designate a fund that is not tax deductible or a "non-deductible" fund (examples might include event tickets or books for a class), simply follow the same steps as creating a new fund; however, prior creating the fund check the box "non-deductible". The steps are as follows:
You may also edit any fund after creating it to designate it as "non-deductible" by hitting the edit button on the far right.
Indicating whether or not a fund is tax deductible will determine whether is shows up on your donors' year end tax statements.
Disclaimer: GivingFire is not a tax advisory service. Please consult a licensed tax professional about what funds qualify and do not qualify as tax deductible. You may also visit the IRS website for further guidance: https://www.irs.gov/charities-non-profits
Here is the button you push in the fund list to edit a pre-existing fund.