Crypto Tax Basics: What Triggers a Taxable Event

A taxable event happens when you dispose of crypto or receive it as income, so selling for cash, swapping one token for another, spending it, and receiving staking rewards or an airdrop are all reportable, while buying and simply holding is not.

This page explains the mechanics that most tax systems share, using the United States as the main example and noting where the United Kingdom and Canada differ.

The United States treats crypto as property

The starting point is a classification. The Internal Revenue Service states that "for U.S. tax purposes, digital assets are considered property, not currency," a position first set out in Notice 2014-21 and applied through the general tax principles that govern property transactions (source: IRS digital assets guidance).

Property treatment is what makes so many ordinary actions reportable. Every disposal of property is measured against what you paid for it, so a gain or loss has to be calculated even when no dollars ever reach your bank account.

What counts as a disposal

Four common actions are disposals in the United States, and all four are reportable.

The gain or loss on each is the proceeds minus your cost basis, the amount you originally paid including acquisition fees. Getting the cost basis right is most of the work in a crypto tax return, and it is why record-keeping matters more here than in a brokerage account.

What counts as income

Receipts are the other half. The IRS asks taxpayers to report digital assets received as payment for property or services, as a reward or award, from mining, staking, and similar activities, and from an airdrop following a hard fork (source: IRS digital assets guidance). Revenue Ruling 2023-14 addresses the taxability of staking income specifically.

Income is valued at the fair market value when you receive it, and that value becomes the cost basis for the asset going forward. A staking reward therefore hits you twice in the records: once as income on receipt, and again as a gain or loss when you eventually dispose of it.

Holding period changes the rate

In the United States the length of time you held an asset before disposing of it changes the rate applied to the gain. An asset held for one year or less produces a short-term gain taxed at ordinary income rates, while one held for more than a year produces a long-term gain taxed at capital gains rates (source: IRS Topic no. 409). The holding period runs from the day after acquisition to the day of disposal.

This applies per lot, not per asset. If you bought the same coin on three dates, each purchase has its own basis and its own clock.

What your exchange reports

Reporting by exchanges is now phasing in. Under final regulations, brokers must report gross proceeds for digital asset transactions effected on or after January 1, 2025, and must report basis on certain transactions effected on or after January 1, 2026 (source: IRS guidance on broker reporting for digital assets). The form is Form 1099-DA, Digital Asset Proceeds from Broker Transactions.

Two consequences follow. First, the tax authority now receives an independent record of your disposals on custodial platforms, so returns that omit them are visible.

Records to keep

Keep, for every acquisition and disposal, the date, the asset, the quantity, the value in your local currency at the time, the fees, and the platform or wallet involved.

Transfers between your own wallets are not disposals, but they do need to be recorded so that a later disposal can be matched to the correct purchase. Untracked transfers are the most common reason a reconstructed history fails.

The United Kingdom

HMRC applies Capital Gains Tax when you dispose of cryptoasset tokens by selling them, exchanging them for different cryptoassets, using them to pay for goods or services, or giving them away other than to a spouse, civil partner, or charity (source: HMRC guidance on cryptoassets). The tax year runs from 6 April to 5 April.

Two figures matter for a UK resident. As of September 2026 the Capital Gains Tax annual exempt amount is £3,000 (source: GOV.UK). Rates on assets other than residential property, effective from 6 April 2026, are 18% on gains falling within the basic rate income band and 24% above it (source: GOV.UK). Self Assessment returns have included a dedicated cryptoasset section from the 2024 to 2025 tax year onwards (source: HMRC, 29 May 2025).

Canada

The Canada Revenue Agency generally treats cryptocurrency like a commodity for the purposes of the Income Tax Act, and income from crypto transactions is treated as either business income or a capital gain depending on the circumstances (source: CRA guidance for crypto-asset users). Because crypto is not government-issued currency, using it to pay for goods or services is treated as a barter transaction.

The business-or-capital distinction does more work in Canada than the equivalent line does in the United States, and it turns on the nature and frequency of your activity rather than on a fixed threshold.

Where jurisdiction pages fit

Tax treatment is one of the ways two otherwise similar countries diverge, and it changes on its own schedule. Our jurisdiction pages carry the regulatory and tax context we have verified for each place, including United States, United Kingdom, and Canada, each with the date it was last checked.

Frequently Asked Questions

Do I owe tax if I only bought and held?

No. Acquiring crypto with cash and holding it is not a disposal in the United States, the United Kingdom, or Canada. The obligation arises when you dispose of it or receive it as income. Note that US taxpayers are still asked about digital asset activity on their return.

Is swapping one coin for another really taxable?

Yes, in all three jurisdictions covered here. HMRC lists exchanging tokens for different cryptoassets as a disposal, and US property treatment produces the same result. The absence of cash in the transaction does not change it.

Are stablecoin trades taxable?

Selling an asset for a stablecoin is a disposal in the same way as selling it for cash, because you have disposed of the original asset. Gains or losses on the stablecoin itself are usually small but are not automatically zero.

What if I lost records from an exchange that shut down?

Reconstruct what you can from bank statements, blockchain records, and any exported files, and document the method you used. Missing basis generally means a higher taxable gain, so the effort of reconstruction is usually worth it.

Does the 1099-DA my exchange sends replace my own records?

No. It reports what that platform saw. Assets you transferred in, moved between wallets, or acquired elsewhere will not be fully reflected, so your own records remain the authoritative source for basis.