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Potential costs of the hardware necessary to build and maintain a mining rig Electrical cost of powering the mining rig If you are mining in a pool, mining pools fees typically charge a flat % fee of each block generated by the pool Potential cost of equipment to support mining rig (ventilation, energy monitoring, electrical wiring, etc.) Tax obligations may vary by jurisdiction (For example, block rewards are considered gross income by the IRS) Mining profitability calculators, such as...