You can deduct expenses for your own volunteer work, but not for your dependent's volunteering.
IRS Publication 526 specifically forbids deducting "expenses you paid for someone else's charitable work." It gives this example: "Your son does missionary work. You pay his expenses. You can't claim a deduction for your son's unreimbursed expenses related to his contribution of services."
See page 6 of this reference: https://www.irs.gov/pub/irs-pdf/p526.pdf
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
