The IRS requires you to report every dollar from your side hustle. Most gig workers fail to claim deductions that reduce both income tax and self-employment tax, leaving money on the table.
Side hustle deductions work differently than regular W-2 employment. As a self-employed person, you file Schedule C with your tax return and pay self-employment tax on net profits. Deductions lower your taxable income and reduce the 15.3% self-employment tax you owe on earnings.
Common deductions include home office space, internet and phone bills, software subscriptions, equipment, transportation, and supplies. If you use a home office exclusively for business, you can deduct either 5 dollars per square foot (simplified method) or calculate actual expenses like rent, utilities, and insurance (regular method). For 2025, the simplified method caps at 300 square feet maximum.
Vehicle expenses work two ways. You claim either actual expenses (gas, maintenance, insurance, depreciation) or the standard mileage rate, which the IRS sets annually. For 2025, rates have not yet been released but typically apply only to business miles, not commuting.
The half of self-employment tax you pay is deductible. If you owe 2,000 dollars in SE tax, you deduct 1,000 dollars from gross income before calculating income tax.
Startup expenses and equipment purchases follow specific rules. Items costing under 2,500 dollars can deduct immediately. Expensive equipment depreciates over several years using Section 179 expensing or bonus depreciation rules.
Keep detailed records. The IRS scrutinizes side hustle returns, and documentation protects you. Track mileage daily, save receipts, and maintain separate bank accounts or credit cards for business expenses.
Professional fees matter too. Tax preparation, accounting