How to Fill Out Schedule C for Gig Workers (Step by Step)

Schedule C (Form 1040) is the tax form where gig workers report their business income and expenses. Whether you drive for DoorDash, deliver for Instacart, freelance on Fiverr, or work across multiple platforms, this is the form that determines how much of your earnings are taxable. This guide walks you through every part of Schedule C, line by line, so you can file accurately and claim every deduction you deserve.

What Is Schedule C?

Schedule C (Profit or Loss From Business) is the IRS form used by sole proprietors and independent contractors to report business income and expenses. As a gig worker, you are classified as an independent contractor, which means you operate as a sole proprietorship by default.

Schedule C is attached to your Form 1040 (your personal tax return). The net profit or loss calculated on Schedule C flows directly to your 1040, where it is combined with any other income you earn. It is also used to calculate your self-employment tax on Schedule SE.

Every gig worker who receives income from platforms like DoorDash, Uber, Lyft, Instacart, Grubhub, Fiverr, Upwork, or any other 1099-based work must file Schedule C. There is no minimum income threshold for filing the form itself, though you must pay self-employment tax if your net earnings are $400 or more.

Who Needs to File Schedule C?

You need to file Schedule C if you earned any income as an independent contractor during the tax year. This includes:

• Delivery drivers (DoorDash, Uber Eats, Instacart, Grubhub, Amazon Flex)
• Rideshare drivers (Uber, Lyft)
• Freelancers (Fiverr, Upwork, Toptal, direct clients)
• Task-based workers (TaskRabbit, Handy, Thumbtack)
• Anyone who received a 1099-NEC or 1099-K for services performed

If you work on multiple platforms, you can either combine all of your gig income on one Schedule C or file separate Schedule Cs for each distinct business activity. We cover the pros and cons of each approach in the Multiple Platforms section below.

Part I: Gross Income (Lines 1-7)

Part I is where you report your total business income before any deductions. For most gig workers, this section is straightforward.

Line 1: Gross receipts or sales

Enter your total gross income from all gig work reported on this Schedule C. This is the total amount you were paid by the platform(s), including base pay, tips, bonuses, incentives, and promotions. This number should match your 1099-NEC and/or 1099-K forms.

Reconciling multiple 1099s

If you received both a 1099-NEC and a 1099-K from the same platform, be careful not to double-count your income. Some platforms report the same payments on both forms. Compare the amounts and use your own records (bank statements, app earnings summaries) to determine the correct total.

Lines 2-6

Line 2 (Returns and allowances) is typically blank for gig workers. Lines 4-6 relate to cost of goods sold, which usually does not apply (see Part III). Line 7 (Gross income) is your Line 1 minus any returns or cost of goods sold.

Part II: Expenses (Lines 8-27)

Part II is where gig workers can significantly reduce their taxable income. Each line corresponds to a specific category of business expense. Here are the lines most relevant to gig workers:

Line 9: Car and truck expenses

This is typically the largest deduction for delivery and rideshare drivers. You have two options:

• Standard mileage rate: $0.70 per mile for 2026. Multiply your total business miles by this rate. This covers gas, depreciation, insurance, maintenance, and repairs.
• Actual expense method: Track all actual vehicle costs (gas, insurance, repairs, depreciation, loan interest) and multiply by your business-use percentage.

You must choose one method for each vehicle. If you use the standard mileage rate, you still enter the total deduction amount on Line 9 and complete Part IV (Vehicle Information).

Line 11: Contract labor

If you paid anyone to help with your gig work (for example, a helper for large deliveries), enter the total here.

Line 15: Insurance

Enter business insurance premiums, such as commercial auto insurance riders or liability insurance for your gig work. Note: health insurance premiums are deducted elsewhere (on Schedule 1, not Schedule C).

Line 17: Legal and professional services

Tax preparation fees related to your Schedule C, accounting software subscriptions (QuickBooks, TurboTax), and any legal fees related to your gig work.

Line 18: Office expense

Office supplies used for your gig work, including printer paper, folders for receipts, pens, and similar items.

Line 22: Supplies

Supplies used directly in your gig work. For delivery drivers, this includes hot bags, insulated bags, drink carriers, hand sanitizer, cleaning supplies, flashlights, and similar items. For freelancers, this could include materials and tools specific to your trade.

Line 25: Utilities

The business-use portion of your phone bill goes here. If 60% of your phone usage is for gig work, deduct 60% of your monthly phone and data plan cost.

Line 27: Other expenses

This is the total from Part V (see below). Any legitimate business expense that does not fit into Lines 8-26 is listed in Part V and the total is entered here.

Part III: Cost of Goods Sold (Lines 33-42)

Part III is for businesses that sell physical products and need to account for inventory costs. For the vast majority of gig workers, this section does not apply.

If you are a delivery driver, rideshare driver, or freelance service provider, you do not have "goods" to sell. Leave Part III blank and skip to Part IV.

The only gig workers who might use Part III are those who sell handmade products (such as Etsy sellers) and need to track the cost of raw materials and inventory.

Part IV: Vehicle Information (Lines 43-47)

If you claimed car expenses on Line 9 of Part II, you must complete Part IV. The IRS uses this section to verify that your vehicle deduction is legitimate.

What the IRS wants to know:

• Line 43: When did you place the vehicle in service for business use?
• Line 44a: Total miles driven during the year (all purposes)
• Line 44b: Total business miles driven
• Line 44c: Total commuting miles (usually zero for gig workers who start from home)
• Line 45: Was the vehicle available for personal use during off-duty hours? (Answer: Yes)
• Line 46: Do you have written evidence to support your deduction? (You need to answer Yes)
• Line 47: Is the evidence contemporaneous? (Meaning: did you track mileage in real time, not reconstruct it later?)

Part V: Other Expenses (Line 48)

Part V is your catch-all section for business expenses that do not fit neatly into the categories listed in Part II. You list each expense with a description and amount, and the total carries over to Line 27 of Part II.

Common Part V expenses for gig workers:

• Parking fees and tolls paid during deliveries or rides
• Mileage tracking app subscriptions (Stride, Everlance, MileIQ)
• Platform fees or service charges deducted by the gig platform
• Safety equipment (dash cam, reflective vest, first aid kit)
• Portable chargers and car chargers
• Background check fees required by gig platforms
• Car washes (business-use portion, especially for rideshare drivers)
• Continuing education related to your gig work

Calculating Your Net Profit or Loss

Your net profit or loss is calculated on Line 31 of Schedule C. The formula is simple:

Where your net profit goes

• Schedule 1, Line 3: Your net profit is added to your other income (W-2 wages, investment income, etc.) to determine your total taxable income for income tax purposes.
• Schedule SE: Your net profit is used to calculate your self-employment tax (15.3%). You can deduct 50% of this SE tax as an adjustment to income on Schedule 1.

Multiple Gig Platforms: One or Multiple Schedule Cs?

If you work on multiple gig platforms, you have a choice: report all your gig income on one Schedule C or file separate Schedule Cs for each platform or business type.

One Schedule C (combined)

• Pros: Simpler to prepare, fewer forms to file, easier to track overall profitability
• Cons: Harder to see which platform is most profitable, may look unusual if business codes differ significantly
• Best for: Workers on similar platforms (e.g., DoorDash + Uber Eats + Instacart are all delivery)

Multiple Schedule Cs (separate)

• Pros: Clearer picture of each business, appropriate business codes for each activity, easier to explain in an audit
• Cons: More paperwork, need to allocate shared expenses (phone, car) across multiple forms
• Best for: Workers with distinctly different business types (e.g., rideshare driving + freelance graphic design)

Common Schedule C Mistakes

1. Mixing personal and business expenses. Only expenses that are ordinary and necessary for your gig work belong on Schedule C. Personal groceries, personal phone usage, and non-business meals cannot be deducted. If an expense is partly personal and partly business (like your phone bill), only deduct the business-use percentage.
2. Missing deductions you are entitled to. Many gig workers leave money on the table by forgetting about parking fees, tolls, phone expenses, supplies, and the home office deduction. Go through every line of Part II and Part V carefully.
3. Using the wrong business code. The IRS uses your business code to compare your return against similar businesses. Using the wrong code can trigger scrutiny. For delivery drivers, use 485300 (Taxi and Limousine Service). For rideshare drivers, use 485990 (Other Transit and Ground Passenger Transportation). For freelancers, use the NAICS code that best matches your specific service.
4. Not reporting all income. Even if you did not receive a 1099, all gig income must be reported. The IRS receives copies of your 1099s and will flag any discrepancies. Cash tips are also taxable income.
5. Double-counting vehicle expenses. If you use the standard mileage rate, you cannot also deduct gas, oil changes, insurance, or depreciation separately. The only vehicle costs you can deduct on top of the mileage rate are parking and tolls.
6. Failing to complete Part IV. If you claim car expenses on Line 9 but skip Part IV (Vehicle Information), the IRS may disallow your entire vehicle deduction. Always complete this section.
7. Not keeping records. The IRS can disallow any deduction you cannot substantiate. Keep receipts, mileage logs, bank statements, and app earnings summaries for at least 3 years after filing (6 years if you significantly underreported income).
8. Reporting gig income as "other income" on Form 1040. Your gig income must go on Schedule C, not on Line 8 of Schedule 1. Filing it as other income means you miss out on business deductions and still owe self-employment tax, but may face additional penalties for incorrect reporting.