How do I calculate capital gains on mined Monero?

You generally calculate capital gains on mined Monero by subtracting its cost basis from what you receive when you sell or otherwise dispose of it, after any allowed selling fees. Your cost basis is often the value you already reported as mining income when you received the XMR, but the exact rules depend on where you pay tax.

Separate mining income from capital gains

You may have two different tax events for the same coins:

• Receiving mined XMR: You may owe income tax on its market value when you receive or gain control of it.
• Selling or exchanging that XMR later: You may have a capital gain or loss from its change in value.

A capital gain is the taxable increase over your cost basis. A capital loss is the decrease, although rules can limit how you use that loss.

This distinction helps you avoid counting the full sale amount as profit a second time. However, some countries treat mining and later sales differently, especially if you mine as a business. Check your local rules before using this approach.

Work out the basis of each payout

Your cost basis is the starting value used to calculate a later gain or loss. In systems that tax mining rewards as income on receipt, it is generally the amount included in your income.

For each mining payout, record:

• The amount of XMR you received.
• The relevant receipt date and time.
• Its fair market value in your tax-reporting currency.
• The price source and method you used.

Fair market value means what the coins were worth in an ordinary market transaction at that time. Use reliable historical prices, rather than today’s price, and keep your method consistent.

Receipt timing can need special attention. A balance shown by a mining website or pool may not yet be under your control. Directly mined Monero rewards also have a 60-block spending lock. Neither a displayed balance nor a blockchain timestamp automatically settles the tax question; ask a local adviser when your rewards count as received.

Calculate the gain when you sell

The basic calculation is:

Capital gain or loss = sale proceeds − allowed selling fees − cost basis of the XMR sold

Here is a hypothetical example, using dollars as your reporting currency:

• You receive 0.5 XMR worth $80, which you report as mining income.
• You later sell all 0.5 XMR for $100.
• You pay an allowable $2 selling fee.

Your capital gain is $100 − $2 − $80 = $18. The original $80 remains separate mining income.

Do not automatically add electricity or computer costs to the coins’ basis. Those expenses may receive separate treatment under local mining-income or business rules.

Match the sale to the right coins

If you have several payouts, each batch can have a different basis. Selling only part of your XMR means you must determine which batch, or tax lot, you sold.

Your jurisdiction may require or permit first-in, first-out, specific identification, or an average-cost method. Do not assume you can simply choose whichever produces the lowest tax.

Swapping XMR for another cryptocurrency or spending it can also trigger a taxable disposal. Moving XMR between wallets you own generally does not, though transaction fees may need separate treatment. Keep payout records, sale confirmations, fees, and wallet-transfer notes.

The bottom line

Track each payout’s taxable receipt value, then compare the basis of the coins disposed of with your net proceeds. Your country’s receipt, accounting, and holding-period rules determine the final tax result, so confirm them with a qualified local tax professional.