If you earn money from freelance work, a side business, gig work, or a sole proprietorship, Schedule C may be part of your federal income tax return.
The form brings your business income and deductible expenses together in one place. The result is your business’s net profit or loss, which then feeds into the rest of your individual return.
What Schedule C Is
Schedule C (Form 1040), Profit or Loss From Business (Sole Proprietorship) is the IRS form used to report income or loss from a business you operated or a profession you practiced as a sole proprietor.
Schedule C is attached to Form 1040. It is not a separate business tax return. If you own more than one sole proprietorship, you generally file a separate Schedule C for each business.
The IRS generally treats an activity as a business when you pursue it for income or profit and carry it on with continuity and regularity. An occasional activity without a profit motive may be treated differently.
Who Usually Files Schedule C?
Schedule C commonly applies to:
- Sole proprietors
- Freelancers and independent contractors
- Gig workers
- People running a part-time business for profit
- Owners of single-member LLCs treated as disregarded entities for federal income tax purposes
A business can be small and still belong on Schedule C. You do not need employees, a storefront, or a formal business name.
The letters “LLC” do not determine the tax form by themselves. A single-member LLC is usually disregarded for federal income tax purposes unless it elects corporate treatment. Partnerships, multi-member LLCs, S corporations, and C corporations generally file different returns.
For a closer look at filing requirements, read Do I Need to File Schedule C?.
What Goes on Schedule C?
Schedule C has five parts, plus a header that identifies the business.
Part I: Income
Part I reports gross receipts or sales and other business income under the accounting method used by the business, such as the cash or accrual method. Report business income even if a client or payment platform did not send you a Form 1099.
Returns and allowances and, when applicable, cost of goods sold are included in the calculation of gross income.
Part II: Expenses
Part II reports deductible business expenses. Common categories include:
- Advertising
- Car and truck expenses
- Contract labor
- Insurance
- Legal and professional services
- Office expenses and supplies
- Rent or lease costs
- Repairs and maintenance
- Travel and deductible meals
- Utilities
A business expense generally must be ordinary and necessary. Personal expenses are not deductible, and mixed-use costs must be divided between their business and personal portions.
See Schedule C Expense Categories: The Complete Line-by-Line List for a detailed explanation of the expense lines.
Part III: Cost of Goods Sold
Part III applies when a business makes or buys products for sale and needs to calculate cost of goods sold. It can include inventory, purchases, labor, materials, and other production costs.
Many service businesses do not complete this part.
Part IV: Vehicle Information
If you claim car or truck expenses, you report the required vehicle information in either Part IV or Form 4562, Part V. Under the current IRS instructions, complete Part IV when you use the standard mileage rate, lease the vehicle, or the vehicle is fully depreciated, as long as you are not required to file Form 4562 for another reason. Mileage and other supporting records matter because the IRS may require proof of business use.
Part V: Other Expenses
Part V itemizes ordinary and necessary business expenses that do not fit one of the named categories in Part II. The total carries back to Part II.
How Schedule C Calculates Profit or Loss
The basic calculation is:
Business income - deductible business expenses = net profit or loss
Suppose a freelance designer receives $60,000 during the year and has $18,000 of deductible business expenses. The Schedule C net profit would be $42,000 before considering other tax-return items.
A net profit generally becomes part of the income reported on Form 1040. A business loss may reduce gross income, but limits can apply depending on the facts.
How Schedule C Connects to Schedule SE
Schedule C and Schedule SE do different jobs:
- Schedule C calculates the business’s net profit or loss.
- Schedule SE calculates Social Security and Medicare taxes on net earnings from self-employment.
If your total net earnings from self-employment from all businesses are $400 or more, you generally must file an income tax return and use Schedule SE. If they are below $400, another filing requirement may still require a return, and the business activity must still be reported correctly.
Read Schedule C vs. Schedule SE for a fuller explanation of how the forms work together.
Schedule C Is Not a Form 1099
A Form 1099 is an information return prepared by a payer or payment processor. Schedule C is the form you file to report the full results of your business.
Your Schedule C income is not limited to the amounts shown on Forms 1099. Cash, checks, card payments, bank transfers, and other business receipts can be taxable even when no information return was issued. At the same time, overlapping Forms 1099 can report the same payment more than once, so reconcile them against your own books.
Our 1099 vs. Schedule C guide explains how to avoid missing or double-counting income.
What Records Should You Keep?
The IRS does not require one specific bookkeeping system in most cases. Your records should clearly show your income and expenses and support the amounts reported on your return.
Useful records can include:
- Invoices, sales reports, and Forms 1099
- Receipts and proof of payment for expenses
- Bank and credit card statements
- Mileage logs and vehicle records
- Inventory and cost records
- Asset purchase documents
- Notes showing the business purpose of travel, meals, and other expenses
A bank statement can show that a payment happened, but it may not prove what you bought or why it was a business expense. Keep the supporting documents needed to explain each deduction.
When Do You File Schedule C?
Schedule C is filed with your annual Form 1040 for the same tax year. It generally follows the individual income tax return deadline, including an extension if you receive one.
Self-employed people may also need to make estimated tax payments during the year because clients generally do not withhold income tax or self-employment tax from their payments.
Turn Your Records Into a Tax-Ready Summary
Schedule C is easier to prepare when income and expenses are organized throughout the year. Simple-C helps categorize transactions by Schedule C line so you can review your totals, spot missing records, and prepare a clean breakdown for yourself or your tax professional.
Ready to work through the form? Read How to Fill Out Schedule C.
This article provides general information, not tax advice. Business classifications, deductions, loss limitations, and filing requirements depend on your facts. Use the IRS forms and instructions for the tax year you are filing, and consult a qualified tax professional when needed.