Capital loss: what it means for crypto tax
A capital loss is the opposite of a gain: you disposed of an asset for less than its cost basis. Losses are not taxed, and in most countries they can offset capital gains elsewhere, reducing your net taxable amount, with unused losses often carried forward.
General information, not tax advice. Crypto tax rules differ by country and change over time, verify against your country's guidance or a qualified advisor.

An example
Sell a token for 400 that cost you 1,000 and you have a 600 capital loss, which can typically be set against a 600 gain made elsewhere that year.
Why it matters for your tax
Losses are an asset, not just bad news, but usually only if you report them. Tracking losing disposals as carefully as winning ones is what lets you claim the deduction.
CryptaTax handles this automatically across your wallets and exchanges, so the concept is applied consistently without you tracking it by hand. Try the crypto tax calculator →
Related terms
See the full crypto tax glossary for every term, or the crypto tax guides for how they fit together.
Capital loss: what it means for crypto tax
Definition in context
A capital loss occurs when you dispose of an asset for less than its cost basis. In crypto, this happens when you sell a coin for less than you paid, or trade it for a coin of lower value. Capital losses are not taxed; instead, they can be used to offset capital gains, reducing your taxable income. If your losses exceed your gains, you may be able to deduct the excess against other income, up to a limit, or carry it forward to future years. The rules vary by jurisdiction.
Why it matters to crypto records
Tracking capital losses is important for tax planning. By realizing losses, you can reduce your tax liability on gains. However, you need to accurately calculate your cost basis and proceeds to determine the loss. Also, some jurisdictions have rules that disallow losses if you repurchase the same asset within a short period (wash sale or bed and breakfasting). Keeping detailed records of your transactions allows you to identify opportunities for tax-loss harvesting and ensure you comply with the rules.
Record example
You buy 1 LTC for $200. Later, you sell it for $150, realizing a $50 capital loss. If you also have a capital gain of $100 from selling another crypto, you can offset the gain with the loss, leaving a net gain of $50. If you have no gains, you might be able to deduct the loss against other income, subject to limits. For example, if your jurisdiction allows a $3,000 deduction, you can deduct $50, reducing your taxable income by $50. If you have more losses than you can use, you can carry them forward to future years.
Distinctions and next steps
Capital losses are different from income losses, such as business losses. In crypto, losses from trading are typically capital losses, while losses from mining or staking might be considered business losses if you are in the business of mining. To make the most of capital losses, consider tax-loss harvesting: sell assets that have declined in value to realize the loss, then possibly repurchase them after a waiting period if you still want to hold them. Be aware of wash sale rules in your jurisdiction. Keep records of all your disposals and their cost basis to accurately calculate losses. Consult a tax professional to understand how losses can be used in your specific situation.
A careful next step
Before acting on this term, return to the original record and write down the question it raises: what changed, which source proves it, and whether another related concept describes the event more accurately. Keep that note with the export or wallet evidence. It makes a later review faster and avoids turning a short label into an unsupported conclusion about tax, accounting or reporting.
FAQ
What is capital loss in crypto tax?
A capital loss is the opposite of a gain: you disposed of an asset for less than its cost basis. Losses are not taxed, and in most countries they can offset capital gains elsewhere, reducing your net taxable amount, with unused losses often carried forward.
Where can I learn more?
See the crypto tax glossary for related terms, or the crypto tax guides for worked examples. Rules differ by country, so check your country's rules.