Published March 27, 2026 · 16 min read
If you earned money from a side hustle in 2025 or 2026, you owe taxes on that income. But you also get to deduct every ordinary and necessary business expense. Most side hustlers overpay the IRS by thousands of dollars because they do not know what they can write off.
This guide covers every common deduction for gig workers, freelancers, delivery drivers, and online sellers. We include actual dollar amounts, IRS rules, and the forms you need. This is not tax advice — consult a CPA for your specific situation — but it is a comprehensive starting point that covers what most people miss.
Important: All figures reference IRS rules and rates. Tax rules change; always verify current rates at IRS.gov before filing.
When you earn money from a side hustle, you report it on Schedule C (Profit or Loss from Business) attached to your personal tax return. You pay two types of tax on this income:
The word "net" is critical. Net earnings = gross income minus deductions. Every dollar you deduct reduces both your income tax and your self-employment tax. A $1,000 deduction saves a side hustler in the 22% tax bracket approximately $373 ($220 income tax + $153 SE tax).
If you drive for your side hustle — delivering food, driving to client meetings, shopping for Instacart, or traveling to craft fairs — you can deduct vehicle expenses. The IRS offers two methods:
The IRS standard mileage rate for 2025 is $0.70 per mile (check IRS.gov for the 2026 rate, which is typically announced in December). This rate covers gas, insurance, maintenance, depreciation, and registration.
| Weekly Miles | Annual Miles (50 weeks) | Deduction at $0.70/mile | Tax Savings (30% bracket) |
|---|---|---|---|
| 100 | 5,000 | $3,500 | $1,050 |
| 200 | 10,000 | $7,000 | $2,100 |
| 400 | 20,000 | $14,000 | $4,200 |
| 600 | 30,000 | $21,000 | $6,300 |
Alternatively, track all actual vehicle expenses: gas, oil, tires, repairs, insurance, registration, depreciation, car washes, and parking. Then multiply the total by the percentage of miles driven for business. This method often yields a higher deduction for expensive vehicles or heavy use, but requires meticulous records.
The IRS requires a contemporaneous log of business miles. Use a mileage tracking app — do not try to reconstruct your miles at tax time. Without a log, the IRS can disallow your entire mileage deduction in an audit. Popular apps include Everlance, MileIQ, and Stride.
If you use a dedicated space in your home exclusively and regularly for your side hustle, you can deduct home office expenses. Two methods:
$5 per square foot, up to 300 square feet. Maximum deduction: $1,500/year. No need to calculate actual expenses — just measure your office space.
Calculate the percentage of your home used for business (office square footage / total home square footage). Apply that percentage to your rent or mortgage interest, utilities, insurance, repairs, and depreciation.
Example: 150 sq ft office in a 1,500 sq ft apartment = 10%. If your rent is $1,800/month ($21,600/year), utilities $200/month ($2,400/year), and renter's insurance $20/month ($240/year), your deduction is 10% of $24,240 = $2,424.
You can deduct the business-use percentage of your phone and internet bills. If you use your phone 50% for business (delivery apps, client calls, invoicing), you deduct 50% of the monthly bill.
| Expense | Monthly Bill | Business % | Annual Deduction |
|---|---|---|---|
| Cell phone | $85 | 50% | $510 |
| Internet | $70 | 40% | $336 |
| Total | $846 |
Business equipment and supplies are deductible in the year purchased (under Section 179 or bonus depreciation for larger items). Common deductions include:
Check home office equipment on Amazon — every business purchase you make is a potential deduction.
Every software tool, app subscription, and online service you use for your side hustle is deductible:
If you are self-employed and not eligible for an employer-sponsored health plan (through a spouse's job, for example), you can deduct 100% of your health insurance premiums — medical, dental, and vision for yourself, your spouse, and dependents. This is an above-the-line deduction, meaning it reduces your adjusted gross income.
Average annual health insurance premiums in 2026: $5,400-$8,400 for an individual, $13,000-$22,000 for a family. This is often the single largest deduction available to self-employed people.
Self-employed individuals have access to retirement accounts with higher contribution limits than traditional 401(k) plans:
These contributions are tax-deductible and reduce your taxable income dollar-for-dollar.
| Deduction | Typical Amount | Notes |
|---|---|---|
| Business meals (50%) | $500-$2,000/yr | Meals with clients or while traveling for business |
| Education/courses | $200-$2,000/yr | Must relate to your current business |
| Business insurance | $300-$1,200/yr | Liability, professional, product insurance |
| Marketing/advertising | $100-$5,000/yr | Social media ads, business cards, website costs |
| Bank/payment fees | $100-$500/yr | PayPal fees, Stripe fees, business account fees |
| Professional services | $200-$2,000/yr | CPA, lawyer, bookkeeper |
| Parking and tolls | $200-$1,500/yr | Business-related only (separate from mileage) |
| Self-employment tax (50%) | Varies | You deduct half your SE tax from income tax |
You can deduct the employer-equivalent portion (50%) of your self-employment tax as an above-the-line income tax deduction. If your SE tax is $4,000, you deduct $2,000 from your income tax calculation. This happens automatically if you use tax software, but many people doing taxes by hand miss it.
If you expect to owe more than $1,000 in taxes, the IRS requires quarterly estimated payments. Due dates: April 15, June 15, September 15, and January 15 of the following year. Missing these dates results in underpayment penalties.
A simple approach: set aside 25-30% of every side hustle payment in a separate savings account, then pay quarterly from that account. Use IRS Form 1040-ES to calculate and submit payments.
If your side hustle involves cryptocurrency — accepting crypto payments, mining, staking, or trading — you have additional tax obligations. Crypto is treated as property by the IRS, meaning every sale, exchange, or use triggers a taxable event. Consider using Coinbase for tracking transactions and generating tax reports. Store your crypto securely with a Ledger hardware wallet.
Use our free tools to manage your side hustle finances. Rate calculators, income trackers, and expense tools — all free.
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