You may be able to to do so, but it will depend on several factors:
If it's directly related to the work you do, you can deduct it as an expense.
Work-related expenses reduce your taxes by lowering the amount of self-employment income you get taxed on. For example, if you made $50,000 in self-employment income and had $5,000 out-of-pocket expenses, you'd only get taxed on $45,000.
For state-specific questions regarding your work, click here to find your state’s Department of Revenue.
Reference: https://ttlc.intuit.com/community/self-employed/help/what-self-employed-expenses-can-i-deduct/00/25566