Capital Gain
A capital gain (often referred to in civil-law tax jurisdictions as plusvalenza) is the taxable profit realized when a crypto-asset is disposed of for a value exceeding its documented acquisition cost basis. Capital gains taxation forms the cornerstone of personal and corporate crypto tax obligations worldwide.
Core formula and calculation principle
A capital gain is computed at the time of each disposal event using the standard valuation formula:
Capital Gain / Loss = Gross Disposal Consideration (or Fair Market Value) − Documented Acquisition Cost Basis
Depending on the outcome:
- Capital Gain: The proceeds received exceed the acquisition cost basis (taxable income or gain).
- Capital Loss: The proceeds received are less than the acquisition cost basis (often eligible for offsetting against capital gains or carrying forward to future tax years).
Realized vs unrealized gains
Tax legislation in most jurisdictions draws a strict distinction between realized and unrealized financial gains:
| Classification | Tax and economic meaning |
|---|---|
| Realized Capital Gain | Profit crystallized through an actual disposal event (sale, swap, or payment); subject to tax assessment |
| Realized Capital Loss | Loss crystallized upon disposal below cost basis; utilized to offset gains under statutory rules |
| Unrealized (Paper) Gain | Asset appreciation while still held in personal custody or exchange balances; generally not taxed until disposal |
| Holding Yields / Income | Income derived from holding activities (e.g. staking, lending, mining rewards); often categorized as miscellaneous or ordinary income |
Taxable disposal events in crypto
A capital gain is triggered by a realization event. Common taxable events include:
- Crypto-to-fiat sales: Selling digital assets for sovereign legal-tender currencies (such as USD, EUR, GBP).
- Crypto-to-crypto exchanges: Exchanging one cryptocurrency for another (e.g. trading BTC for ETH or stablecoins). In tax terms, exchanging asset A for asset B is treated as a disposal of asset A at its prevailing fair market value.
- Goods and services purchases: Spending cryptocurrency to purchase physical goods, software, or commercial services.
- Liquidation and debt settlement: Disposing of collateralized crypto-assets to settle liabilities or margin loans.
Conversely, purchasing cryptocurrency with fiat and holding it in self-custody or transferring funds between personal wallets does not constitute a taxable disposal.
Inventory methods and cost basis
The magnitude of a capital gain depends on which inventory lot-matching methodology is applied to identify the historical acquisition cost:
- LIFO (Last In, First Out): Disposals are matched against the most recently acquired lots.
- FIFO (First In, First Out): Disposals are matched against the earliest acquired lots.
- Weighted Average Cost (WAC / ACB): Acquisition costs are pooled to establish a blended average cost basis per unit.
When reliable documentation of acquisition cost is unavailable, tax codes often default the acquisition basis to zero, rendering the entire gross proceeds subject to taxation.
National tax regimes and statutory rules
Substantive taxation of capital gains varies across national jurisdictions:
- Tax rates: Some countries apply flat substitute rates, while others integrate crypto gains into progressive personal income tax brackets.
- Holding period exemptions: Certain tax frameworks exempt capital gains if the assets have been held for more than a specified period (e.g. one year), whereas other countries tax gains regardless of holding duration.
- Exemption thresholds: Annual statutory thresholds or de minimis allowances may exempt aggregate net gains below a specified amount.
For practical calculation and tax declaration rules in specific jurisdictions (for example, under Italian tax residency), see our dedicated guides on Calculating Capital Gains and Cost Basis and the Italian Crypto Tax Return Guide.
The information in this article is for general literacy only. It is not tax, legal, financial, or accounting advice and does not replace Agenzia delle Entrate instructions or advice from a qualified professional for your circumstances. It must not be used to evade tax obligations. We make no warranty as to accuracy, completeness, or currency; rules and practice can change. Do not file returns or make decisions based solely on this text. RIXTO is not liable for loss arising from use of, or reliance on, this information.