schedule c, line by line

What is Schedule C?

Schedule C (Profit or Loss From Business) is where you report 1099 business income and all your deductions. Your net profit from Schedule C becomes your "self-employment income," flows to Schedule SE (self-employment tax), and then to Form 1040 as your business income. It's the backbone of the 1099 filing process.

You file one Schedule C per business. If you have multiple distinct businesses (e.g., freelance writing AND Etsy shop), you file two Schedule Cs and add them together on Form 1040.

Part I: Income

The first section captures your gross income and adjustments.

Line 1a: Gross receipts or sales

Enter your total 1099 income. This is the sum of all 1099-NEC, 1099-K, or direct client payments you received. Don't reduce it for expenses yet—that comes later.

If you had multiple 1099s from different clients/platforms, add them all here. Example: YouTube AdSense $3,000 + Patreon subscriptions $5,000 + sponsorship from Brand X $2,000 = $10,000 on line 1a.

Line 1b: Returns and allowances

If you refunded a customer or accepted a return, put the amount here. This reduces your gross income.

Example: You sold a course for $500, the buyer asked for a refund, you issued it. Line 1b = $500.

Line 1c: Net sales (1a minus 1b)

Automatically calculated: gross receipts minus returns.

Line 2: Cost of goods sold (COGS)

Only relevant if you sell physical goods. If you're a service provider (writing, design, coaching) or a digital creator (YouTube, Patreon), leave this blank and skip to line 3.

We'll cover COGS in Part III.

Line 3: Gross profit (1c minus 2)

If you have no COGS, this equals line 1c (your gross receipts minus returns).

Part II: Expenses

This is where you deduct your business expenses. The IRS allows deductions for anything "ordinary and necessary" to run your business. Keep receipts for everything.

Line 8: Advertising

Google Ads, Facebook ads, promotional materials, influencer sponsorships where you're paying to advertise your business. Example: A course creator pays $500/month in Facebook ads to promote their course.

Line 9: Car and truck expenses

Two methods:

• Standard rate: 2024 rate is $0.70/mile. Multiply miles driven for business by the rate. Example: 5,000 business miles × $0.70 = $3,500 deduction.
• Actual expenses: Gas, maintenance, insurance, depreciation, registration. Keep detailed records. Generally only worth it if your vehicle is used exclusively for business or if you have a high-mileage year.

Commuting (home to office) doesn't count. Business use only: client meetings, deliveries, conference travel.

Line 10: Commissions and fees

Payment processor fees (Stripe, PayPal, Square), commission to sub-contractors, affiliate commissions paid to promote others' products.

Example: Etsy charges 6.5% transaction fee + 3% payment processing. If you sold $10,000, Etsy took $950. Deduct $950 here.

Line 11: Contract labor

If you hire freelancers, contractors, or 1099 workers to do work for your business, deduct their fees here. Important: If you pay a contractor $600+, you must issue them a 1099-NEC and file it with the IRS.

Line 12: Depreciation

The depreciation allowance for tangible business property (equipment, furniture, vehicles). We'll dig deeper in the depreciation section, but enter the amount from Form 4562 (Depreciation and Amortization) here.

Line 13: Insurance (other than health)

Business liability insurance, equipment coverage, professional malpractice insurance. Not health insurance—that's a separate deduction on Form 1040 (§162(l) health insurance deduction).

Line 14: Interest (mortgage, car, loan)

Interest on business loans (not personal debt). If you took out a small business loan for equipment, the interest is deductible.

Line 15: Legal and professional services

Accounting, tax prep, legal advice, bookkeeping software. Example: You pay an accountant $1,500 to help file taxes—deductible. You pay a lawyer $2,000 for a contract review—deductible.

Line 16: Office expense

Supplies: pens, paper, folders, sticky notes, printer ink. Also includes office furniture under $2,500 (or use depreciation if over).

Line 17: Rent or lease (vehicles, machinery, equipment)

Monthly office rent, studio rental, equipment leases. Not your home (that's line 30, home office).

Line 18: Repairs and maintenance

Fixing broken equipment, routine maintenance. If you replace a part (not just repair), it might be depreciation instead.

Line 19: Supplies

Consumable supplies: packaging, shipping materials, labels, props, wardrobe (if exclusively for content creation and not suitable for personal wear).

Line 20: Taxes and licenses

Business registration fees, EIN filing, professional licenses, business tax. Not federal income tax (that's not deductible), but state business taxes, sales tax, etc.

Line 21: Travel

Airfare, hotels, rental cars for business trips. Important: Meals are 50% deductible (per §274), so they go on line 27 instead.

Example: A YouTuber travels to a conference. Airfare ($400) and hotel ($800) go here; meals (50% of $200 = $100) go on line 27.

Line 22: Meals and entertainment

Note: This line has restrictions. Meals are 50% deductible per §274. Entertainment is generally not deductible anymore (the tax code changed). So list meals, but the deduction is limited.

Line 23: Utilities

Electric, water, internet, phone (business %). If you have a home office, deduct the business % of utilities.

Line 24: Wages

If you employ people (not contractors, but actual W-2 employees), deduct their salaries here. You also must pay payroll taxes (15.3%) on their wages.

Line 25: Other expenses

Catch-all for deductions not listed above. Examples: subscriptions to software, stock photo licenses, music licenses, royalties, membership fees to professional organizations, printing costs, postage.

Part III: Cost of goods sold

If you sell physical products (Etsy, Depop, Shopify, Amazon), you'll need to calculate COGS. This is not an expense deduction like the above; it's subtracted from gross receipts to get gross profit.

COGS includes the cost of inventory you sold, not inventory you still hold. Formula:

• Beginning inventory (Jan 1) + Purchases during year – Ending inventory (Dec 31) = COGS

Example: You start with no inventory. In 2026, you buy vintage items for resale at a total cost of $5,000. By Dec 31, you've sold items that cost you $3,500. You still have $1,500 worth of unsold inventory.

• Beginning inventory: $0
• Purchases: $5,000
• Ending inventory: $1,500
• COGS: $0 + $5,000 – $1,500 = $3,500

You deduct $3,500 as COGS on line 4 of Part I. Your gross profit is gross receipts minus COGS.

Important: You cannot deduct COGS twice. If an item cost $10 and you sold it for $50, you deduct $10 as COGS, not in Part II expenses. The $40 difference is your margin.

Part IV: Vehicle information

If you deducted vehicle expenses on line 9 using the standard mileage rate, you report vehicle info here:

• Date vehicle was placed in service
• Total miles driven (all purposes)
• Business miles
• Type of vehicle

If you used the actual-expenses method, you'd skip this and report depreciation on Form 4562 instead.

Part V: Other expenses

A few additional deductions with special rules:

Line 27: Other expenses (specify)

Anything not listed in Part II. Common items:

• Meals and entertainment (remember: 50% meals only per §274)
• Charitable contributions (generally not deductible for businesses, but some apply)
• Software subscriptions
• Stock photos and music licenses
• Continuing education related to business
• Coworking space rental
• Shipping and packaging

Line 30: Tentative profit or (loss)

Gross profit (line 3 or 6) minus total expenses. This is your profit before home office and other adjustments.

Line 31: Simplified home office deduction

If you use part of your home exclusively for business, you can deduct:

• Simplified method: $5/sqft × number of sqft (max 300 sqft = $1,500/year). No receipts needed.
• Actual method: Calculate % of home used for business, then deduct that % of mortgage interest, property tax, utilities, depreciation, repairs, insurance. Much more complex; requires detailed record-keeping.

Most creators use simplified. It's easier and often yields similar deductions without the audit risk of actual method.

Depreciation strategies

Equipment and furniture get depreciated (written off over years) rather than deducted all at once. But there are accelerated deduction options.

§179 immediate expensing

If you buy business equipment (computer, camera, furniture) over $200, you can elect to deduct the full cost immediately under §179, rather than depreciating it. Limit: $1,160,000 per year (2024).

Example: You buy a camera for $3,000. Under §179, you deduct all $3,000 in the year of purchase (instead of depreciating over 5 years). The camera must be "tangible personal property" used in the business.

Bonus depreciation

Similar to §179; allows immediate deduction of qualified property. For 2024, 100% bonus depreciation applies to most equipment. (This is slated to phase down in future years.)

Regular depreciation (MACRS)

If you don't use §179 or bonus, equipment is depreciated using MACRS (Modified Accelerated Cost Recovery System). Most business equipment is 5-year (computers, office equipment) or 7-year (furniture).

Common mistakes

Mixing personal and business expenses

You can't deduct personal expenses, even if you "happen" to use them for business. Example: Your home internet bill, if you use the Internet for both personal and work, is partially deductible (the business %), not 100%. For a YouTube creator, maybe 70% is business, 30% personal—deduct only the 70%.

Deducting meals at 100%

Meals are only 50% deductible per §274. If you spend $200 on a client lunch, you deduct $100. If you forget to cap it at 50%, you're overstating deductions.

No receipts for large deductions

The Cohan rule allows some estimates if you lose receipts, but it's better to have documentation. The IRS is skeptical of large deductions without receipts. Keep everything for 3–7 years depending on the category.

Home office red flag

The IRS scrutinizes home office claims. If you claim a $15,000 home office deduction but your Schedule C net profit is only $12,000, you'll get a notice. Use realistic numbers and the simplified method when in doubt.

Mixing Schedule C and Schedule 1 deductions

Some deductions (like health insurance under §162(l)) go on Form 1040 line 16, not Schedule C. Don't double-deduct.