taxes

Schedule C

IRS form used by sole proprietors to report business income and expenses.

Schedule C (Profit or Loss from Business) is attached to Form 1040 by sole proprietors and single-member LLC owners to report business revenue and deductible expenses. The net profit flows to your personal tax return as self-employment income. Schedule C is one of the most commonly audited forms because it allows significant deduction claims.

Example

A freelance writer reports $85,000 in revenue and $22,000 in deductible expenses on Schedule C, resulting in $63,000 of net profit subject to income and self-employment tax.

Why It Matters for Your Business

Schedule C determines your business profit, which is subject to both income tax and self-employment tax, making accurate expense tracking essential.

Practical Tips

  • Organize expenses by Schedule C category throughout the year, not just at tax time.
  • Keep detailed records for deductions most likely to trigger an audit, like vehicle and home office expenses.

Related Terms

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