Any professional work that is done pro bono has limitations to what you can claim. From the IRS, they state that “Although you cannot deduct the value of your services given to a qualified organization, you may be able to deduct some amounts you pay in giving services to a qualified organization. The amounts must be:
- Directly connected with the services
- Expenses you had only because of the services you gave, and not personal, living, or family expenses” (publication 526)
Unfortunately the value of time or service is not tax deductible, but any expenses that incur due to the pro bono work that are directly related to the charity are tax deductable.