What Is Schedule C? Who Files It and How to Complete It
Last updated 05/19/2026 by
Ante Mazalin
Edited by
Andrew Latham
Summary:
Schedule C is a tax form filed with Form 1040 that sole proprietors, freelancers, and single-member LLCs use to report business income and expenses, calculating the net profit or loss that flows directly onto their personal tax return.
It’s the primary tax document for self-employed individuals and one of the most commonly filed schedules with the IRS.
- Sole proprietors: Anyone who runs a business under their own name or a trade name without incorporating files Schedule C to report business results.
- Freelancers and gig workers: Independent contractors who receive Form 1099-NEC or 1099-K use Schedule C to report that income and deduct related expenses.
- Single-member LLCs: Unless an LLC has elected to be taxed as a corporation, it is treated as a “disregarded entity” and its owner files Schedule C.
- Side business owners: Anyone with self-employment income in addition to W-2 wages files a separate Schedule C for each business activity they conduct.
Self-employment comes with more tax complexity than a standard W-2 job, but it also comes with more control. Schedule C is where that control lives — it’s the form that lets you subtract every legitimate business cost before calculating what you owe.
What Schedule C reports
Schedule C captures two things: gross income from the business and all allowable business expenses. The result is either a net profit, which is added to your taxable income, or a net loss, which may reduce your other income depending on the circumstances.
According to the IRS, net profit from Schedule C is also subject to self-employment tax, currently 15.3% on the first $168,600 of net earnings (2024), which covers Social Security and Medicare contributions that an employer would otherwise split with a W-2 employee.
Common deductible expenses on Schedule C
The power of Schedule C is in the deductions. Every ordinary and necessary business expense reduces the net profit subject to both income tax and self-employment tax.
| Expense Category | Examples | Notes |
|---|---|---|
| Home office | Portion of rent, utilities, internet | Must be used regularly and exclusively for business |
| Vehicle | Business mileage or actual car expenses | Standard mileage rate is 67 cents/mile in 2024 |
| Advertising | Website, social media ads, business cards | Fully deductible |
| Supplies | Office supplies, tools, materials | Must be used in the business |
| Professional services | Accountant, attorney, consultant fees | Fully deductible |
| Software and subscriptions | Accounting software, industry tools | Fully deductible if used for business |
| Health insurance premiums | Self-employed health insurance | Deducted on Form 1040 line, not Schedule C |
| Retirement contributions | SEP-IRA, Solo 401(k) | Deducted on Form 1040 line, not Schedule C |
Self-employment tax and Schedule C
Net profit from Schedule C flows to Schedule SE, where self-employment tax is calculated. This is the self-employed person’s equivalent of FICA taxes — the Social Security and Medicare contributions that employers and employees share on W-2 income.
The good news: self-employed individuals can deduct half of their self-employment tax on Form 1040 as an above-the-line deduction, reducing adjusted gross income regardless of whether they itemize.
Pro Tip
Contributing to a SEP-IRA or Solo 401(k) is one of the most powerful ways to reduce Schedule C net profit before calculating taxes. SEP-IRA contributions can be up to 25% of net self-employment income, up to $69,000 in 2024, and Solo 401(k)s allow both employee and employer contributions that can reach similar limits. These contributions reduce both income tax and the self-employment tax base, making them significantly more valuable than equivalent deductions on the expense side. See our tax relief industry study for how self-employed individuals commonly reduce their tax burden.
How to complete Schedule C
- Gather all income records: Collect every Form 1099-NEC, 1099-K, and any cash income that wasn’t reported on a 1099. All business income must be reported regardless of whether you received a form.
- Total your gross receipts: Enter all business income in Part I of the form. If you sell products, subtract the cost of goods sold to arrive at gross profit.
- Categorize and total your expenses: Enter each deductible expense in the appropriate line in Part II. Use IRS-recognized categories and keep receipts for every amount you claim.
- Calculate net profit or loss: Subtract total expenses from gross profit. If positive, this is your net profit. If negative, this is a net loss.
- Transfer to Form 1040: The net profit (or loss) flows to Schedule 1, which feeds into your Form 1040. Net profit also flows to Schedule SE to calculate self-employment tax.
- Pay estimated taxes quarterly: If you expect to owe $1,000 or more in taxes from self-employment, you’re generally required to make quarterly estimated tax payments using Form 1040-ES to avoid underpayment penalties.
Filing Schedule C accurately requires good records throughout the year. Most self-employed individuals use accounting software or work with a tax professional to ensure nothing is missed and that every allowable deduction is captured.
Good to know: If your self-employment income is under $5,000 and you have no expenses, no home office, and no employees, you may qualify to use the simplified Schedule C-EZ instead of the full form. However, the IRS discontinued Schedule C-EZ starting with the 2019 tax year, so all self-employed filers now use the standard Schedule C regardless of income level.
Related reading on self-employment and taxes
- Sole proprietorship — explains what a sole proprietorship is, how it’s taxed, and when it makes sense compared to forming an LLC or corporation.
- Federal income tax — covers how the progressive tax system works and how self-employment income is taxed alongside W-2 wages.
- Standard deduction — explains the standard deduction and how it interacts with above-the-line deductions available to self-employed individuals.
- LLC — breaks down how a single-member LLC is taxed by default on Schedule C and when electing S corporation status changes that treatment.
Frequently asked questions
Do I need to file Schedule C if I made very little money?
If your net earnings from self-employment are $400 or more, you’re required to file Schedule C and pay self-employment tax. Below $400, you don’t owe self-employment tax, but you may still need to report the income on your return. There is no minimum threshold that allows you to ignore self-employment income entirely.
What’s the difference between Schedule C and Schedule E?
Schedule C is for business income from active self-employment, where you materially participate. Schedule E is for passive income from rental properties, partnerships, S corporations, trusts, and estates. The distinction matters because Schedule C income is subject to self-employment tax while Schedule E income generally is not.
Can I deduct a home office if I also work from a coffee shop sometimes?
Yes, the home office deduction doesn’t require that you work exclusively at home, only that the specific area of your home used for business is used regularly and exclusively for business. You can work elsewhere and still claim the deduction as long as your designated home office meets the exclusivity requirement.
What records should I keep for Schedule C?
Keep receipts, bank statements, invoices, mileage logs, and any contracts or agreements related to your business. The IRS recommends retaining records for at least three years from the date you filed the return, or two years from the date you paid the tax, whichever is later. For certain situations like property purchases, retain records longer.
Can a multi-member LLC file Schedule C?
No. A multi-member LLC is treated as a partnership by default and files Form 1065, not Schedule C. Each member then receives a Schedule K-1 reporting their share of income and deductions, which flows to their personal return. Only single-member LLCs disregarded for tax purposes use Schedule C.
Key takeaways
- Schedule C is used by sole proprietors, freelancers, and single-member LLCs to report business income and expenses on their personal tax return.
- Net profit from Schedule C is subject to both income tax and self-employment tax of 15.3% on the first $168,600 (2024).
- Every ordinary and necessary business expense reduces net profit, lowering both income tax and self-employment tax owed.
- Retirement contributions like SEP-IRA and Solo 401(k) are among the most powerful Schedule C tax reduction strategies available to self-employed individuals.
- Self-employed individuals with expected tax liability of $1,000 or more must make quarterly estimated payments to avoid underpayment penalties.
If self-employment tax debt or back taxes have become unmanageable, professional resolution services can help. Compare options through SuperMoney’s tax relief reviews.
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