Yup. If you're mining, and it fits the definition of a "business" instead of a hobby (google for more details - there are rules around what qualifies), you don'

Yup. If you're mining, and it fits the definition of a "business" instead of a hobby (google for more details - there are rules around what qualifies), you don't have to actually set anything up. You just file a schedule c as part of your taxes, and can therefore deduct expenses.