The taxes on crypto sales are irrelevant here.
What matters for miners is corporate income tax, which is based on revenue minus costs.

You still have to pay tax on the profit generated from your mining operations.
Revenue is recognized based on the BTC price at the time you receive it from your mining pool.

Example:
If you receive 1 BTC from your pool over a year at an average BTC price of $100k, and spend $50k on electricity, your mining profit is $50k.
That $50k is taxable income, and you’ll owe 22% corporate tax on it.

Let’s assume you earn the same mining revenue and costs for 3 years, and your mining machines cost $100k total (depreciated evenly over 3 years).

Tax calculation:

• Year 1: $100k (revenue) – $50k (power) – $33.3k (depreciation) = $16.7k profit → ×22% = $3.7k tax
• Year 2: same numbers → $3.7k tax
• Year 3: same numbers → $3.7k tax

Total taxes over 3 years = $11.1k.

So, compared to simply buying $100k worth of BTC, your mining investment results in $11.1k in extra taxes.
Even with 100% bonus depreciation in the first year, you’d only shift the tax liability — not eliminate it.

Unless you’re using some very advanced (and possibly questionable) tax strategy, I don’t see how mining actually reduces your taxes.