The IRS requires you to report every dollar earned from side hustles, but most gig workers leave money on the table by overlooking deductions that could slash hundreds or thousands from their tax bills.
Business deductions cut both income tax and self-employment tax, which means the savings compound. A side hustler paying 37 percent combined tax rates could save $370 on every $1,000 in legitimate deductions claimed.
Common deductible expenses include home office space, equipment, software subscriptions, mileage, supplies, and professional services. If you freelance from a dedicated room in your home, calculate the square footage of that space relative to your total home size, then deduct that percentage of rent, utilities, and internet. A 200-square-foot office in a 2,000-square-foot home equals 10 percent of those bills.
Mileage deductions work for delivery work, client visits, and supply runs. The 2025 standard mileage rate sits at 70.5 cents per mile for business use (up from 67 cents in 2024). Track every trip in a log or use apps like MileIQ or QuickBooks Self-Employed to automate the process. Commuting to a regular job does not count, but driving between multiple client locations does.
Equipment purchases over a certain threshold require depreciation deductions rather than immediate write-offs. Laptops, cameras, and furniture typically depreciate over three to seven years. Items under $2,500 may qualify for Section 179 expensing, allowing full deduction in the year purchased.
Self-employment tax liability also increases your deduction value. Half of self-employment tax is deductible from gross income, reducing taxable earnings before calculating income tax. This creates a cascading benefit.
The catch: deductions require documentation