Is your side hustle a hobby or a business?
The IRS treats an activity as a business if you run it to make a profit, and looks at nine factors to decide. Hobby income is still taxable, but hobby expenses aren't deductible. A business can deduct expenses and claim losses. Making a profit in three of five years helps you.
Updated November 2026 · By Pankil Kumar, Managing Partner
Quick facts
- Key question. Are you really trying to make a profit?
- Hobby income. Taxable, with no expense deduction
- Helpful test. Profit in 3 of 5 years suggests a business
Why does the difference matter?
| Treatment | Business | Hobby |
|---|---|---|
| Income | Taxable | Taxable |
| Expenses | Deductible | Not deductible |
| Losses | Can offset other income | Not allowed |
| Self-employment tax | Yes | No |
| Form | Schedule C | Schedule 1, other income |
With a hobby, you can pay tax on all income with no deductions, though you skip self-employment tax. With a business, you pay tax on profit.
How does the IRS decide?
No single factor settles it. The IRS considers things like these.
- Do you run it in a businesslike way, with records and a separate account?
- Do you have the expertise, or get advice?
- Do you spend real time and effort on it?
- Do you expect assets to rise in value?
- Have you turned other activities into a profit?
- What's your history of income and losses?
- Do you make occasional profits?
- Do you depend on the income?
- Is it largely for pleasure?
The safe harbor is profit in at least three of the last five years, or two of seven for horse breeding and racing. It isn't required, but it shifts the question.
What should you do to show a profit motive?
- Open a separate bank account and card
- Keep real books
- Write a simple plan, even a page, showing how you'll make money
- Advertise and try to get customers
- Change what isn't working
Do you need an LLC?
No. A side business can run as a sole proprietorship, and an LLC doesn't prove a profit motive. Read LLC vs sole proprietorship if you're weighing it up.
What about the $400 rule?
If your side business makes $400 or more net, you owe self-employment tax and need to file, even if your W-2 job covered the rest. Your platform may also send a 1099-K. If your side income has grown, it's time for estimated payments, or raise your W-4 withholding at your day job.
Sources
General information, not tax advice for your situation.
How much can you make from a hobby before paying taxes?
There's no tax-free amount for hobby income. All of it's reportable.
Can I deduct losses from a side business?
Yes, if it's a genuine business with a profit motive. Repeated losses can draw IRS questions.
Does the IRS audit hobby losses?
It can. Repeated Schedule C losses against a good W-2 income are a known review area.
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