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Official form guide
Schedule C (Form 1040) reports profit or loss from a sole proprietorship or single‑member LLC. File it with your individual income tax return to calculate net business income.
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Schedule C (Form 1040) reports profit or loss from a sole proprietorship or single‑member LLC. File it with your individual income tax return to calculate net business income.
Plain English
If you run a business as yourself, not as a corporation, you list all your earnings and expenses on Schedule C. The result adds to or subtracts from your personal taxable income.
Submission Date
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Glossary Terms
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Incorporated corporation
Corporate income taxed separately
✓ Verify entity type before filing
Partnership with multiple owners
Partnership returns required
✓ Ensure Schedule K‑1s are issued
LLC taxed as S‑corp
S‑corp election changes filing
✓ Confirm election status
Schedule C must be filed by the same deadline as your individual return, typically April 15 of the year after the tax year. Extensions for Form 1040 automatically extend Schedule C as well.
Checklist
Gross receipts
Bank statements, 1099‑NEC, invoices · Accounting software reports
Cost of goods sold
Inventory counts, purchase invoices · Year‑end inventory worksheet
Business expenses
Receipts, credit‑card statements · Expense ledger
Net profit/loss
Schedule C Part III calculation · Spreadsheet totals
Field map
Info
3 items
Name of the business. Your own name if no DBA.
Six-digit code describing your type of business from IRS instructions.
EIN if you have one; otherwise your SSN.
Part I
3 items
Total revenue before returns and allowances.
Direct costs of goods sold if you carry inventory (from Part III).
Gross receipts minus cost of goods sold.
Part II
2 items
All ordinary and necessary business expenses: advertising, car, insurance, supplies, utilities, home office, etc.
Gross income minus total expenses. If profit, subject to SE tax. If loss, may offset other income.
Part IV
1 items
If deducting car/truck expenses: date placed in service, business miles, total miles.
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Fillable formOpen in Editor->Schedule C is a current IRS form for tax year 2024. The latest revision was issued in January 2024 and is used for returns filed in 2025.
Quick Facts
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Gross receipts vs. gross sales
Income may include refunds and allowances
→ Verify totals match 1099‑NEC and records
Home office deduction
Often confused with personal expenses
→ Use Form 8829 if qualifying
Vehicle expenses
Standard mileage vs. actual costs
→ Choose one method and apply consistently
Cost of goods sold
Requires beginning and ending inventory
→ Use consistent inventory method
Self‑employment tax
Not shown on Schedule C
→ Compute on Schedule SE
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