Dear Cyberians,

We know year-end is tough — tons of things to do before Christmas. This year in particular doesn’t look too optimistic: Bitcoin is still in a sideways trend, mining is less profitable than we all would like it to be, and once the year is over, it will be time to pay tax bills.

But here comes... awesome news!

There is a way to flip the game. Mining is now more than just a margin game of creating new Bitcoins, it saves your taxes.

If you have a projected taxable income in 2025 (from any business activity, in almost any country), you still have 2 weeks and 2 ways to get rid of taxes by turning them into a strategic Bitcoin reserve.

1. Cyberian Mine's tax-deductible services

Deduct the cost of miners and hosting services at Cyberian Mine from your tax bill, if you haven’t done so yet.

Cyberian Mine’s T&Cs are framed as a simple compute allocation and provision service. This means you don’t have to put your miners on the balance sheet and use year-over-year amortization — you can write it off all at once.
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If your tax bill is higher, you still have time to buy more miners on our platform and write off all the costs instantly from your 2025 tax bill.
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Let us know if you need any help with invoicing.

2. Save21.io - new tax-optimization service

This is not a loophole. It’s a straightforward compute-as-a-service expense, concluded, paid, and fully deductible in 2025.

How do I save on taxes?

We’ve just launched Save21.io, leveraging many years of legally compliant mining experience at Cyberian Mine and Everminer.

Save21 provides simple and predictable
​prepaid, fixed-dollar (or Euro) compute contracts:

• paid in 2025
• deducted in 2025
• delivered as hashrate in the first 3-6 months of 2026.
• adjusted so clients mine a fixed dollar/euro value in Bitcoin at the time of receiving mining payouts

No hardware ownership. No depreciation. Your own BTC custody.

The main website is focused on US-market, but we’ve localized the accounting flow for France and Germany, and the same model applies for almost any European country.

Why clients use it (besides tax savings)

• Turn taxes into Bitcoin exposure
• Pure service expense - clean balance sheet
• Non-custodial - BTC goes directly from pool to your wallet
• Predictable accounting - Euro-based service invoices and Euro-nominated Bitcoin delivery.

Simple example

A company prepays €110,000 for a 2025 compute contract:

• deducts the full amount in 2025
• saves income tax (≈ 30% in Germany, for example)
• mines exactly €100,000 worth of Bitcoin during the early 2026
• you can sell it straight away and avoid any Bitcoin volatility exposure, and repeat next year to defer taxes into the future indefinitely
• ...or better save Bitcoin, grow your strategic reserve and use it as collateral for tax-free loans if you ever need cash

Deadline (important)

To qualify for the 2025 tax year:

• contracts must be signed and paid before December 31
• after that, the window is closed

No extensions. No backdating. That's how tax system works.

Who this is for (and who it isn’t)

This is for you if:

• you have taxable profits in 2025 - coming from any business activity
• you can deduct your expenses from your taxable income
  ​To be sure, consult your tax advisor, and have a call with us — we’ll help you build the best strategy to turn your tax bills into tax-free Bitcoin.

Next step

If this is relevant for your 2025 year-end planning, don't hesitate, reach out through Save21 directly or

Talk to your tax-advisor or CPA if needed — we’re happy to provide the full accounting flow as a PDF at Save21.io.

Two weeks left. After that, it’s gone.

Best regards,
Max Matrenitski
Founder and CEO of Cyberian Mine and Everminer​
Co-founder of Save21​