Yes, without compensation, you are
effectively a volunteer
As such, You can deduct all of your out of
pocket expenses as cash contributions
as well as 14 cents per mile for
travelling by auto in the service of your qualified volunteer organization.
To enter volunteer contributions:
Type in charitable contributions. in the search box, top
right of your screen, then click the magnifying glass
Click the jump to charitable contributions link in the
search results.
Follow the prompts and onscreen instructions
to enter
To benefit from the above, you must
itemize your deductions.
See
https://ttlc.intuit.com/questions/2902084-is-volunteer-work-deductible
