Ethereum Tax in Canada: Capital Gains, Staking and GST/HST

Ethereum tax in Canada starts with a classification question, not with the blockchain: is the taxpayer's activity on income account or capital account? Once that is established, ordinary ETH purchases, sales, swaps, spending, staking, gas, recordkeeping and reporting can be analysed under Canadian rules.

This article covers native ETH on Ethereum mainnet, including self-operated native validation. It does not treat pooled staking tokens, liquid-staking tokens, wrapped ETH or bridged ETH as though they were native ETH. For the protocol mechanics behind the tax events, see Ethereum Gas Fee Accounting and Ethereum Staking Rewards.

Authority and date note. Canadian tax guidance and legislative status were refreshed through 31 August 2026. CRA's published staking material contains useful descriptions and platform examples, but it does not supply a complete event-by-event income-tax rule for every self-operated Ethereum validator fact pattern. Where the authority stops, this article says so. CRA interpretations and roundtable answers quoted here are severed letters carrying CRA's caveat that they "may not represent the current position of the CRA". Bill C-31 is treated as draft legislation: Parliament's LEGISinfo currently shows it at consideration in committee in the House of Commons, with second reading completed on 3 June 2026.

Everything below assumes the bookkeeping itself is already settled. Our crypto accounting guide covers the wider workflow and Ethereum records, controls and reconciliation covers the close. Ethereum tax in Canada asks a narrower set of questions: which character, which amount, which record.

A. Scope and taxpayer type

Ethereum tax in Canada has no single character rule. A disposition produces either a capital gain or loss, or business income or loss, depending on the facts and the course of conduct. CRA's position is that "Generally, if a crypto-asset transaction is not made on account of business income, it would be considered capital in nature", while "an isolated crypto-asset transaction could be determined to be on account of business income when it is considered an adventure or concern in the nature of trade". CRA points to paragraphs 9 to 13 of Interpretation Bulletin IT-479R, Transactions In Securities, which "provide general information" - while cautioning in the same breath that "this does not mean that crypto-assets are necessarily securities (for example, shares and bonds) for income tax purposes". IT-479R is archived: it is dated 29 February 1984, and carries the banner "We have archived this page and will not be updating it." CRA then sets out six factors in its own voice, and they are not IT-479R's list: frequency of transactions, period of ownership, knowledge of crypto-asset markets, time spent, financing and advertising. IT-479R's own paragraph 11 runs to eight, adding "security transactions form a part of a taxpayer's ordinary business" and, "in the case of shares, their nature - normally speculative in nature or of a non-dividend type", the second of those being expressly about shares. CRA: income from crypto-asset transactions · IT-479R (archived)

Rules stated for capital property must not be copied into a business inventory ledger, and business deductions must not be assumed for a personal investment. CRA's guidance does not distinguish individuals from corporations, and no crypto-specific corporate guidance was identified.

CRA rebuilt this guidance in late 2025. One page became a hub plus six sub-pages between 29 October and 3 December 2025, and a proof-of-stake section was added to the mining and staking page for the first time. Anything written against the older single page should be re-checked. Note also that the proposed increase in the capital gains inclusion rate was cancelled on 21 March 2025. The rate is one-half. Prime Minister's Office

B. Ethereum tax in Canada: direct tax by event

Published guidance in this table was checked 24 August 2026. "No specific guidance identified" means no event-specific official answer was identified in the reviewed source set. It does not mean the event is untaxed.

C. Indirect tax: GST/HST

CRA names ether specifically. Its GST/HST page gives as examples of virtual payment instruments "bitcoin, ether (the native token of the ethereum blockchain), and litecoin". A supply of a virtual payment instrument is an exempt financial service, so "GST/HST does not apply to the sale" and "the person cannot claim input tax credits related to the sale". Where a registrant accepts ETH for a taxable supply, GST/HST is calculated "based on the fair market value of the crypto-assets at the time of the exchange", and the registrant must "keep all records that show how you calculated the fair market value". CRA: GST/HST and crypto

This is the one place in the article where a rule was written for proof of stake, and it is worth quoting exactly. Section 188.2 of the Excise Tax Act defines a "mining activity" and CRA's Notice 324 says the definition covers "validating transactions in respect of a cryptoasset and adding them to the publicly distributed ledger", adding: "The validating of transactions may be performed by any one of the various methods that cryptoasset networks use such as those that are commonly referred to as proof-of-work or proof-of-stake protocols." CRA Notice 324 · ETA s.188.2

The consequences for a Canadian holder running their own validator are unusual and cut both ways: the provision of the mining activity "is deemed not to be a supply", so no GST/HST is charged on rewards. And property and services acquired for consumption, use or supply in the course of, or in connection with, the mining activity are deemed to be acquired otherwise than in the course of commercial activity, so input tax credits on those inputs are denied, which CRA confirms "applies even if the person does not receive any remuneration as a consequence of performing a mining activity". CRA's plain-language summary is that "Generally, a person engaged in mining activity is considered to not be engaged in commercial activity for GST/HST purposes. However, they may still be considered to be carrying on a business for income tax purposes".

Read the deeming where it actually bites. It attaches to the inputs, not to the person. Subsection 188.2(2) operates "to the extent that a person acquires, imports or brings into a participating province property or a service for consumption, use or supply in the course of, or in connection with, mining activities, the person is deemed to have acquired … the property or service for consumption, use or supply otherwise than in the course of commercial activities of the person". Subsection 188.2(3) reaches the same result where a person consumes, uses or supplies property or a service in connection with mining activities, without the "to the extent that" limiter. A GST-registered software studio that also runs a validator - which is Halden - loses input tax credits on the validator's inputs, not across its whole business. The registrant still has to apportion.

There is an exception in subsection 188.2(5) where the activity is performed for a person whose identity is known, and the further conditions are met. In that case "the provision of the mining activity is subject to the general GST/HST rules". That is the provision to test for staking-as-a-service arrangements, not for a holder running their own validator and earning protocol rewards.

D. Employment and payroll

No specific guidance identified. CRA's employers' guide contains no crypto content. Compensation paid in ETH still has to be analysed under the ordinary employment and withholding rules using the Canadian-dollar value, but no CRA statement was identified addressing whether ETH salary is remuneration or a non-cash benefit, and no T4 box should be asserted on the strength of this research. The absence is a gap, not an exemption.

E. Information reporting and compliance

CRA requires books and records for cryptoasset transactions, and says so for both populations: "This applies to individuals and businesses." Its list is specific: units and asset type, the date and time, the Canadian-dollar value, the nature of each transaction and the counterparty "even if it is just their crypto-asset address", "The addresses associated with each digital wallet used", and "The beginning wallet balance (and its cost) and ending wallet balance for each crypto-asset for each year". Records must generally be kept "at least six years from the end of the last taxation year to which the records and books of account relate". CRA: books and records

Capital dispositions now have their own line, for 2025 and later returns: Part 3 of Schedule 3, line 7, "Crypto-assets". T4037 directs the filer to "enter your total proceeds on line 15200 and total gain or loss on line 15301". On the 2024 form there was no crypto line at all - crypto sat at Part 3 line 6, under the combined heading "Bonds, debentures, promissory notes, crypto-assets, and other similar properties", boxes 10693 and 10694, and line 7 was mortgage foreclosures. An October 2024 CRA tax tip still refers to that older combined heading. The current guide supersedes it for 2025 onwards, and the bonds line no longer mentions crypto at all. A prior-year return uses the form for its own year. CRA T4037

Canada's Crypto-Asset Reporting Framework is not law yet. Draft legislation was released in August 2025 for the 2026 and subsequent calendar years, and was carried into Bill C-31, introduced on 6 May 2026 - but the bill deferred the start by a year: clause 99(2) provides that "Subsection (1) applies to the 2027 and subsequent calendar years." As at 31 August 2026 that bill remained in House committee, where it has been since 3 June 2026. (A 10 June 2026 entry on the file is a Senate motion authorising pre-study of the bill's subject matter, not a stage of the bill itself.) The consolidated Income Tax Act still ends at Part XX, with no new Part added. Confirm the status again before relying on it. This is exactly the kind of measure that moves between drafting and filing. Department of Finance draft · Bill C-31 legislative summary

F. Lot / basis method

For capital property, weighted average is mandatory. It is not a choice and FIFO is not available. The mandate is statutory: section 47 of the Income Tax Act deems identical properties to have been acquired at an averaged cost. CRA once described adjusted cost base as "usually the weighted average cost of a crypto-asset", but that phrasing survives only in the superseded October 2024 tax tip - the current guide says adjusted cost base is "usually the cost of a crypto-asset, plus expenses to acquire it", and neither T4037 nor the current guide uses the words "weighted average" at all. The averaging mandate rests on section 47 and on T4037's identical-property rule, not on that sentence: "you have to calculate the average cost of each property in the group at the time of each purchase to determine your ACB". CRA's statement that "each type is considered to be a separate asset and must be valued separately for inventory purposes" is, on its face, about inventory valuation on business account. For capital property the same separation follows from the identical-property rules, which operate property by property. The superficial-loss rule - the definition is in section 54 of the Income Tax Act, not in the crypto guidance - needs both of its conditions: identical property acquired by the taxpayer or an affiliated person in the 30 days before or after the disposition, and that property still owned, or subject to a right to buy, 30 days after the sale. CRA tax tip · CRA T4037 · CRA: value of crypto-assets · ITA 47 · ITA 54

A business-account conclusion follows the inventory rules instead - and there are two of them, pointing opposite ways. ITA 10(1) applies "For the purpose of computing a taxpayer's income for a taxation year from a business that is not an adventure or concern in the nature of trade", and values inventory at "the cost … or its fair market value …, whichever is lower". ITA 10(1.01) applies "For the purpose of computing a taxpayer's income from a business that is an adventure or concern in the nature of trade", and requires inventory to be valued "at the cost at which the taxpayer acquired the property" - no write-down. Item A above reaches business account partly by the adventure route, so the distinction is live rather than academic: a holder who arrives on business account that way and then takes a lower-of-cost-and-market write-down has claimed a deduction section 10(1.01) forbids. CRA's valuation page points the right way - it gives the two section 10(1) methods first, then adds that "property described in the inventory of a business that is an adventure or concern in the nature of trade must be valued at the cost for which you acquired the property" - but the carve-out arrives after the menu, and a reader who stops at the menu will miss it. Either way, the FIFO-by-location policy in the complete Ethereum journal-entry example is not Canada's tax method, and a Canadian holder cannot use its financial-reporting lot ledger as a tax computation. ITA 10

G. Reporting currency and the section 261 election

This item has no counterpart in the two modules that follow, and it is here because the holder in the complete Ethereum journal-entry example is a Canadian taxpayer whose books are in US dollars. Every amount in this module is a Canadian-dollar amount, and that is a rule rather than a convention. ITA 261(2) is the default: "In determining the Canadian tax results of a taxpayer for a particular taxation year, (a) subject to this section … Canadian currency is to be used; and (b) … if a particular amount that is relevant in computing those Canadian tax results is expressed in a currency other than Canadian currency, the particular amount is to be converted to an amount expressed in Canadian currency using the relevant spot rate for the day on which the particular amount arose." T4037 says the same thing to a holder in plainer words: convert "the ACB of the property to Canadian dollars using the exchange rate in effect at the time the property was acquired", and "Report your capital gain or loss in Canadian dollars." CRA T4037 · ITA 261

This is not a labelling point, and it is why the tax-accounting and guidance-gap discussion needs an answer here. Each acquisition converts at the spot rate for its own day. A Canadian-dollar weighted-average adjusted cost base is therefore not the US-dollar adjusted cost base multiplied by any single rate, and a Canadian capital gain is Canadian-dollar proceeds less that Canadian-dollar pool - a different number from the US-dollar gain converted at the disposal-date rate. A pool built in US dollars and left there is not the Canadian tax basis at all.

The election. ITA 261(1) makes US dollars a "qualifying currency". ITA 261(3) sets the conditions on which ITA 261(5) applies, and 261(5) is the provision that does the work: "the taxpayer's Canadian tax results for the particular taxation year are to be determined using the taxpayer's elected functional currency." "Canadian tax results" is itself defined in 261(1) to include, at limb (d), "any amount that is relevant in determining" the taxpayer's income - which is what pulls an adjusted cost base, a weighted average and a capital gain inside the elected currency rather than leaving them to be translated. The conditions are narrow:

• the taxpayer must be a corporation resident in Canada throughout the taxation year, and not an investment corporation, a mortgage investment corporation or a mutual fund corporation;
• the elected currency must be the primary currency in which the taxpayer maintains its records and books of account for financial reporting purposes throughout the year - so the election follows the books, it does not create them;
• the election must be filed on prescribed Form T1296, "on or before the day that is 60 days after the first day of the particular taxation year"; and
• the taxpayer must not have filed an earlier election under the same paragraph, and no revocation may apply to the year. The election is a one-shot: 261(3)(d) bars a corporation that has already elected once from electing again, and a revocation under 261(4) is unavailable in a first functional-currency year and then takes effect only six months out, so the Folio states the practical floor plainly - a taxpayer is "required to stay in the functional currency tax reporting regime for at least two tax years".

It cannot be made retroactively. The deadline runs from the first day of the year being elected for, not from the filing date for that year, so the decision is made before the year is over. CRA's extended discussion is Income Tax Folio S5-F4-C1, Income Tax Reporting Currency, which T4037 itself points to.

Halden has made the election, with US dollars as its elected functional currency. That is why the Canadian figures in the tax-accounting and guidance-gap discussion can be stated in the same currency as the books: the adjusted cost base pool, the basis removed and the capital gain in that section are Canadian tax results as computed, not US-dollar figures awaiting a translation. A holder that has not elected cannot read those figures across, and must build the pool again in Canadian dollars under 261(2). The election also re-denominates the Act's own dollar figures: 261(5)(b) reads every reference to "a particular number of Canadian dollars" in the elected currency, converted at the relevant spot rate for the first day of the taxation year - so on its terms the $100,000 T1135 threshold in item B is tested in US dollars for an electing taxpayer. But 261(5)(b) opens "unless the context otherwise requires", and no CRA application of it to an information-return threshold was identified.

What an accountant should take away

Ethereum tax in Canada is not one rule applied to every wallet movement. The durable workflow is to identify the taxpayer and activity, identify the actual economic event, measure the ETH quantity in reliable records, apply the income or capital rules that govern that taxpayer, and only then determine the Canadian-dollar or elected functional-currency amount.

Native staking remains the corner of Ethereum tax in Canada where protocol precision matters most. CRA guidance should not be stretched beyond its stated facts. A withdrawal from a validator is not automatically a new reward merely because ETH appears on the execution layer, and a protocol description is not itself a tax rule. Where published authority does not resolve a self-operated validator event, document the legal authority used, the conclusion reached and the judgement that bridges the gap.

How Tokenbooks helps with Canadian Ethereum tax work

Canada is one of eight jurisdiction presets in Tokenbooks, and a preset derives a default lot method and pooling scope, so the policy a portfolio runs on is a recorded setting rather than a convention. Average cost is one of four implemented methods, alongside first in first out, last in first out and highest in first out. The capital gains and losses report then carries, per disposal, the asset, the amount disposed, the acquisition date, the disposal date, the proceeds, the cost basis, the gain or loss and a link back to the source transaction.

The transaction population those figures are built from comes from Ethereum integration.

More in this series

Accounting Token Anatomy: Native ETH. This article stands alone, but the series builds in order.

Previous (01.2.12): Ethereum Accounting Records, Controls, and Reconciliation

Next (01.2.13.2): Ethereum Tax in the United States

Sources and authority map

• CRA, "Reporting income from crypto-asset transactions". canada.ca
• CRA, "Reporting income from crypto-asset mining and staking activities". canada.ca
• CRA, "Collecting and remitting GST/HST from crypto-asset transactions", and GST/HST Notice 324. CRA GST/HST
• CRA, "Keeping books and records of crypto-assets for tax filing", and "Determining the value of crypto-assets for tax filing". books and records
• CRA, T4037 Capital Gains, and the crypto capital-gains tax tip. T4037
• Income Tax Act, sections 3, 10, 38, 47, 52, 54, 69, 111, 233.3, 248 and 261, and Interpretation Bulletin IT-479R. s.38
• CRA technical interpretation 2024-1031821I7, 17 January 2025, CRA roundtable document 2023-0984901C6, and CSA Staff Notice 21-332. 2024-1031821I7
• Income Tax Act section 261, Form T1296, and Income Tax Folio S5-F4-C1, Income Tax Reporting Currency. s.261
• Parliament of Canada, Bill C-31 LEGISinfo - current legislative stage checked 31 August 2026.

Research status. Protocol mechanics and published guidance were refreshed through 31 August 2026. Where a source is interpretive rather than authoritative, the text says so. This article is educational research, not accounting, tax, legal, valuation, or investment advice.