The nine factors the IRS weighs
| Factor | What it looks at |
|---|---|
| Manner of operation | Do you keep books and run it like a business? |
| Expertise | Have you studied the field or consulted experts? |
| Time and effort | How much of your time goes into it? |
| Expectation of appreciation | Could the assets used gain value over time? |
| Success in similar activities | Have you succeeded in comparable ventures before? |
| History of income or losses | Is there a pattern of profit, even if inconsistent? |
| Amount of occasional profits | When you do profit, is it meaningful? |
| Financial status | Do you depend on this income, or have other means? |
| Personal pleasure | Is this mainly for fun? |
Source: Internal Revenue Service
No single factor is decisive; the IRS looks at the full picture.
The 3-of-5-year safe harbor
If an activity shows a profit in three of the last five tax years, it’s generally presumed to be a for-profit business, shifting the burden of proof to the IRS if it wants to argue otherwise. An exception applies to activities primarily involving horse breeding, training, showing, or racing, where the safe harbor is profit in two of the last seven years instead of three of five.
Why the classification matters
A business can deduct ordinary and necessary expenses on Schedule C, even when that creates a loss that offsets other income. Hobby income is still fully taxable, but hobby expenses remain fully non-deductible; a rule originally set to expire under the TCJA was made permanent by the 2025 One Big Beautiful Bill.
Enjoying the activity isn’t disqualifying
Personal pleasure is only one of the nine factors, and courts have held that a real, if modest, hope of profit still counts even if you love what you do. An unpleasant or labor-intensive activity can actually strengthen the case for profit motive.
How to document profit motive
The following can help demonstrate that you’re running a legitimate business rather than a hobby:
- Keeping a separate bank account
- Maintaining complete records
- Writing a business plan
- Adjusting your approach to improve profitability
