Mining Income: Schedule C vs. Hobby — Get the Classification Right

How you classify crypto mining income determines whether you can deduct your rig, your electricity, and your depreciation — or none of it. The IRS’s hobby-loss rules under IRC §183 are aggressive. Here is the analysis Saim Akif, CPA runs for every mining client before deciding where the income goes on the return.

The 9-Factor Hobby Test Under IRC §183

The IRS uses a facts-and-circumstances test to determine whether an activity is a business (profit motive) or a hobby (primarily personal). The nine factors from Treas. Reg. §1.183-2(b) are:

• The manner in which the taxpayer carries on the activity (businesslike?)
• The expertise of the taxpayer or their advisors
• The time and effort expended
• Expectation that assets will appreciate in value
• The taxpayer’s success in similar activities
• The history of income or losses from the activity
• The amount of occasional profits (relative to losses)
• The taxpayer’s financial status (does the loss generate tax benefits disproportionate to income?)
• Elements of personal pleasure or recreation

No single factor is determinative. Profitable mining operations rarely lose this test. Loss-generating operations — particularly those where the miner has substantial other income and the mining appears recreational — are at higher risk. The IRS presumes an activity is for profit if it produces profit in at least 3 of 5 consecutive years (IRC §183(d)) — but the burden is on the taxpayer to prove it otherwise.

“The 9-factor test is not just an academic exercise. Losing hobby-loss classification eliminates every deduction and leaves you with ordinary income and zero basis step-up on the equipment. This classification decision should happen in Year 1, not at audit.”

— Saim Akif, CPA

Why Schedule C Unlocks the Real Tax Benefits

When mining qualifies as a trade or business, the income goes on Schedule C and opens up a suite of deductions unavailable to hobby miners:

• Equipment depreciation: Mining rigs are 5-year MACRS property. Under IRC §179, you can deduct up to $1,160,000 (2023 limit, adjusted for 2025) of equipment cost in the year of purchase. First-year bonus depreciation under §168(k) was 80% in 2023 and phases down further in 2025 — but still significant.
• Electricity: The largest ongoing expense for most miners. Fully deductible as a Schedule C business expense.
• Facility/rent: If you rent space for your rigs, that rent is deductible. Home office deductions follow the simplified or actual-expense method under §280A.
• Software, subscriptions, and pool fees: All ordinary and necessary business expenses under IRC §162.

Hobby income, by contrast, is reported on Schedule 1 (line 8z, “other income”) and no deductions are permitted post-TCJA (the 2017 Tax Cuts and Jobs Act eliminated miscellaneous itemized deductions). This is a brutal outcome for a capital-intensive operation.

The Self-Employment Tax Tradeoff

Schedule C miners pay self-employment tax (15.3% on net income up to the SS wage base, 2.9% above) in addition to income tax. This is the main argument some advisors make for keeping mining income off Schedule C. But that argument almost always loses on net, because:

• SE tax is calculated on net Schedule C income — after deducting all business expenses. If your electricity and depreciation bring net income to $30,000, SE tax is on $30,000, not your gross mining revenue.
• You can deduct half of SE tax on Schedule 1, further reducing adjusted gross income.
• The deductions unlocked by Schedule C typically dwarf the SE tax cost by a wide margin.

Entity Options: When an LLC or S-Corp Helps

For miners generating substantial net income, an S-Corp election can reduce SE/payroll tax. The strategy: pay yourself a “reasonable salary” subject to payroll taxes, and distribute the remaining profit as an S-Corp distribution (not subject to SE tax). The breakeven analysis depends on payroll administration costs and your net profit level — typically meaningful above $80,000–$100,000 of net Schedule C income. See our entity structuring service for a cost-benefit analysis.

Need Help?

Mining tax classification has long-term consequences — especially if you are depreciating significant equipment. Saim Akif, CPA runs the hobby-vs-business analysis for every new mining client and builds a documentation file designed to survive scrutiny. Schedule a 30-minute intake with Saim.