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Schedule C categories reference
A searchable, plain-English reference for every Schedule C expense category — examples, edge cases, and the deductibility rules.
Going deeper
For the full plain-English walkthrough of every Schedule C category — including the deductions self-employed people most often miss — read Schedule C Categories Explained.
For educational purposes only. Based on the 2026 IRS Schedule C (Form 1040). Consult a qualified tax professional before filing.