The main differences between a hobby and a business are:
- Hobbies do not allow you to claim any expense, they are reported as other income, and the income is not subject to self employment tax.
- Businesses can deduct expenses, the income is commonly reported on Schedule C, and the income is subject to self employment tax.
The expenses you can claim for a business can be any expense that are both ordinary and necessary for your business. Some of the most common expenses are supplies, insurance, vehicle expenses, travel, among others. For more information about what business expenses you can claim see the TurboTax articles below: