TFSA Business Income Is Taxed Inside the Account. RRSP Money Is Taxed on the Way Out
A clause in the RRSP rules keeps the plan’s trust exempt from Part I tax even when it carries on a business of trading qualified investments. Nothing like that clause appears in the TFSA rules, so TFSA business income is taxable inside the account, at the top rate, from the first dollar. The trustee of a West Vancouver investment advisor’s TFSA argued the RRSP clause should be read into the TFSA section, lost at the Tax Court of Canada, and lost again at the Federal Court of Appeal.
What the RRSP gets is an exemption from tax inside the plan, not an exemption from tax, and it is not a reason to move a trading account into one. The Tax Court listed ten differences between the two regimes, and two of them bear directly on this question, on our reading. Income in an RRSP “accrues on a tax-deferred basis while income within a TFSA accrues on a tax-free basis”. And “[w]ithdrawals from an RRSP are taxable in the year of withdrawal while withdrawals from a TFSA are not taxable at all.” An RRSP is taxed on withdrawal whether it ever trades or not, so exit tax is not the price of the carve-out. The Crown argued that this is the very reason for the difference, on the footing that “an RRSP provides only a deferral of tax” while income in a TFSA “would permanently escape taxation” without the exception, and the Court accepted the narrower point that Parliament had legislated for RRSPs and chose not to for TFSAs. The appellant’s case was that the two regimes are “mirror images” of each other, and the Court’s answer was that section 146 is “a statutory scheme separate from the TFSA trust regime set out in section 146.2”.
The carve-out lives in section 146, not in 146.2
Subsection 146.2(6) of the Income Tax Act exempts a TFSA trust from Part I tax, except where it carries on one or more businesses or holds non-qualified investments, in which case tax is payable on what its taxable income would be from those sources alone. There is no exception for a business of trading qualified investments.
Paragraph 146(4)(b), the RRSP provision, opens the same way and then subtracts something. Tax is payable only on the amount by which the trust’s business taxable income exceeds “such portion … as can reasonably be considered to be income from, or from the disposition of, qualified investments for the trust”. Where the business is nothing but trading qualified investments, that subtraction leaves nothing to tax. The same words appear in section 146.3 for RRIFs, at subparagraph 146.3(3)(e)(ii), and nowhere in section 146.2, section 146.4 or section 146.6. The RRSP version also switches off entirely, taxing the trust on its taxable income for the year, where it borrowed money in the year other than for a business or has borrowings outstanding from the start of it, under paragraph 146(4)(a), and for each year after the year following the death of the last annuitant, under paragraph 146(4)(c).
The charge is 33% federally, from the first dollar
Section 122 of the Act charges a trust that is not a graduated rate estate or a qualified disability trust “the highest individual percentage for the taxation year multiplied by the trust’s amount taxable”. Subsection 248(1) points that definition at subsection 117(2), where the highest percentage for the current taxation year is 33%. TFSA business income is therefore taxed federally at 33% from the first dollar, with no graduated brackets. Subsection 122(1.1) also bars a trust from claiming deductions under the Subdivision of the Act that holds the personal credits, other than three: charitable donations, the minimum tax carryover and the dividend tax credit. The personal credits an individual would set against the same income are not available.
Provincial tax lands on top, and it is the trust that settles which province gets it. Section 2(1) of the British Columbia Income Tax Act charges every individual, a term its section 1 defines to include a trust, that was resident in the province on the last day of the taxation year or earned income there, and subsections 4.1(5) and 4.1(6) then apportion the bill. Where the holder lives does not enter into it. Section 4.1(3) of that Act charges a trust “the highest percentage specified in subsection (1)” of that Act on the whole of its taxable income, section 1 gives “taxable income” the same meaning it has in the federal Act, so the provincial charge runs on the same computed figure, and that highest percentage is 20.5%, at paragraph 4.1(1)(h), the same 20.5% the CRA’s published 2026 table shows at the top of the provincial brackets. A trust resident there would therefore face 53.5% in total, from the first dollar. The federal 33% is the part that is the same for every TFSA trust.
An RRSP trust carrying on the identical business of trading qualified investments pays nothing at the trust level, because subparagraph 146(4)(b)(ii) subtracts exactly that income and leaves zero to tax. That shelter is narrower than it first reads, and it is not a licence to run a trading business inside a plan. It reaches only income “from, or from the disposition of, qualified investments”, so an RRSP business that deals in anything outside that definition is taxed on that portion at the trust rate, and paragraph 146(4)(a) switches the exemption off altogether, taxing the trust on its taxable income for the year, if the trust borrowed money in the year or carried borrowings into it, though money “used in carrying on a business” is expressly excluded from that trigger. Losses are stranded either way: both provisions compute the trust’s taxable income as though the business were its only source, subsection 146.2(6) on the footing that the trust had “no incomes or losses from sources other than those businesses and properties”, and the trust is not the holder, so a losing year inside the plan cannot be set against the holder’s income outside it, where a trader on income account would deduct it. Our guide to RRSP rules covers the room and the withdrawal rules.
The charge also takes the whole gain. Business income is income, taxed in full. Nothing in a finding of business leaves a half inclusion to fall back on, and paragraph 38(a) of the Act is what a taxpayer would otherwise be relying on, since it makes a taxable capital gain “½ of the taxpayer’s capital gain”. A buy-and-hold investor selling at a profit outside a registered account is taxed on half the gain. A trust found to be carrying on a business is taxed on the entire amount at the trust rate. Paragraph 146.2(6)(b) pushes the same way on the other limb of the subsection, providing that for a non-qualified investment “the trust’s taxable capital gain or allowable capital loss from the disposition of a property is equal to its capital gain or capital loss”. That line between a trading profit taxed as income and a gain taxed as a capital gain is the hinge of the whole dispute, and our guide to how investment income is taxed in Canada sets out what each of those treatments actually costs.
Set the federal charge against earning the same profit personally. The table applies the CRA’s published 2026 federal brackets to $40,000 of trading profit stacked on the other taxable income shown, before personal credits, beside 33% of the same $40,000. The personal column applies those rates in full because trading profits, on a finding of business, are income rather than capital gains.
| Other taxable income | Federal tax if earned personally | Federal tax inside the TFSA | Difference |
|---|---|---|---|
| $0 | $5,600.00 | $13,200.00 | $7,600.00 |
| $50,000 | $7,646.01 | $13,200.00 | $5,553.99 |
| $80,000 | $8,362.53 | $13,200.00 | $4,837.47 |
| $120,000 | $10,400.00 | $13,200.00 | $2,800.00 |
| $200,000 | $11,600.00 | $13,200.00 | $1,600.00 |
| $300,000 | $13,200.00 | $13,200.00 | $0.00 |
Both columns are federal only, with provincial tax on top of each. A personal federal marginal rate reaches the trust’s 33% only above $258,482 of taxable income, which is the inversion worth sitting with: the lower the holder’s other income, the more the account costs them.
The holder’s liability has no cap
Under paragraph 146.2(6.1)(a), the holder “is jointly and severally, or solidarily, liable with the trust to pay each amount payable under this Act by the trust that is attributable to that business or those businesses”. Paragraph 146.2(6.1)(b) caps the issuer’s exposure at the trust property the issuer controls, plus property distributed out of the trust on or after the date the notice of assessment was sent. The holder’s exposure carries no such cap.
An assessment of a TFSA trust necessarily arrives after the years it covers, and by then the account may hold nothing to pay it with. The obligation does not stay behind in the emptied trust. What the record here shows is the gap that can open: the trust sold its securities and paid $547,788.83 out to its holder in January 2013, the years assessed were 2009 through 2012, and the file still carried a 2015 docket number.
Reporting starts with the trustee. The CRA tells issuers that where a TFSA carries on a business “the TFSA trust is taxable on any income earned on, and any capital gains derived from the non-qualified investment or business”, reported on Form T3RET. Where tax is payable on a TFSA, the CRA directs the holder to a TFSA Return, Form RC243, filed “by June 30 of the calendar year after the year the tax applies”.
The FHSA has no carve-out either, and neither does the RDSP
Subsection 146.6(3) is drafted like the TFSA provision, taxing the trust where it “carries on one or more businesses or holds one or more properties that are non-qualified investments for the trust”, and paragraph 146.6(4)(a) makes the FHSA holder “jointly and severally, or solidarily, liable with the trust”. An FHSA holder carries the same personal exposure a TFSA holder does. The RDSP shares the missing carve-out and nothing beyond it. Paragraph 146.4(5)(b) charges the trust where, not being otherwise taxable, it carries on a business or holds properties that are not qualified investments for it, and section 146.4 carries no holder-liability provision at all, so the charge stops at the trust.
What the courts settled in Ahamed
The case is Canadian Western Trust Company as Trustee of the Fareed Ahamed TFSA v. His Majesty the King. Mr. Ahamed, a professional investor and an investment advisor in West Vancouver, British Columbia, opened a self-directed TFSA on January 2, 2009 and directed all of its purchases and sales, contributing $5,000 in early January of 2009, 2010 and 2011, $15,000 in all. Every security the trust bought and sold was a qualified investment. On the agreed facts, “Most were non-dividend paying and speculative in nature. The majority were penny stocks listed on the TSX Venture Exchange in the junior mining sector. The TFSA trust owned most of the shares for only a short period.”
The trust was worth $54,269.74 at the end of 2009, $420,965.14 at the end of 2010 and $617,371.24 at the end of 2011, which is 41.16 times the $15,000 contributed. It closed 2012 at $564,482.90, then sold its securities and transferred proceeds of $547,788.83 to Mr. Ahamed in January 2013. The Minister reassessed Part I tax to the trust on taxable income of $44,270 for 2009, $180,190 for 2010, $330,994 for 2011 and $14,027 for 2012, a total of $569,481. Those are amounts of taxable income and not amounts of tax.
No facts were in dispute. The parties filed a Partial Agreed Statement of Facts and neither called a witness, leaving a pure question of interpretation. In 2023 TCC 17, Spiro J. declined “to apply a provision that Parliament included in the statutory scheme governing RRSPs but chose not to include in the statutory scheme governing TFSA trusts”, and held that “income earned by a TFSA trust from carrying on any business, including a business of trading qualified investments, is taxable under subsection 146.2(6) of the Act.” The appeals were dismissed.
The Federal Court of Appeal agreed. In 2024 FCA 108, reasons of the Court delivered from the bench at Vancouver on June 11, 2024 by Biringer J.A., sitting with Stratas and Boivin JJ.A., the appeal was dismissed with costs. At the Tax Court the appellant had argued that “buying and selling qualified investments does not constitute carrying on a business for purposes of subsection 146.2(6)”. At the hearing of the appeal it acknowledged that on the factors in Vancouver Art Metal Works Ltd. v. Canada it would be considered to be carrying on a business of trading qualified investments, and submitted that the phrase “carries on one or more businesses” in subsection 146.2(6) should nonetheless not be read to capture a business that involves only trading in qualified investments. The Court found that position “untenable”, and said the reading urged “would amount to a re-drafting of the provision”.
The fight was long. The file carries the docket number 2015-4080(IT)G, the Tax Court heard it over four days on December 12, 13, 14 and 15, 2022, judgment came on February 6, 2023, and the appeal was dismissed on June 11, 2024. Nine years from docket number to final answer, on facts nobody disputed.
What turns trading into a business
The CRA’s archived Interpretation Bulletin IT-479R, “Transactions in securities”, dated February 29, 1984, lists the factors the courts have considered: frequency of transactions, period of ownership, knowledge of securities markets, whether security transactions form part of the taxpayer’s ordinary business, time spent studying markets and investigating purchases, financing on margin or other debt, advertising a willingness to purchase securities, and the nature of the shares, normally speculative or of a non-dividend type.
The Tax Court held that subsection 146.2(6) “incorporates by reference the well-established judicial test for ‘carrying on business'”, whose nature “would have been abundantly clear when Parliament passed subsection 146.2(6) of the Act in 2008”. The Federal Court of Appeal endorsed that paragraph specifically.
Applying the test to the agreed facts, the Tax Court’s finding was blunt. “As directed by Mr. Ahamed, the Appellant traded frequently, had an extensive history of buying and selling shares that were mostly speculative in nature, and owned the shares for short periods. In light of Mr. Ahamed’s knowledge and experience in the securities market as a professional investment advisor, and the considerable time he spent researching securities markets, there can be no doubt that the Appellant carried on a business of trading qualified investments for each of the taxation years at issue.”
Where the line is not
Ahamed is an outlier on its own facts, and it is worth saying so plainly. The holder was a professional investment advisor by trade, most of what the trust dealt in was speculative, the majority of it junior mining penny stocks, and it held most of the shares only briefly, and $15,000 of contributions became $617,371.24 in three years. The Court reached “no doubt” on frequency, an extensive buying and selling history, the speculative nature of the shares, short holding periods, professional knowledge and time spent researching. It did not need the financing or advertising factors, and a TFSA trust cannot borrow in any event: paragraph 146.2(2)(f) requires the arrangement to prohibit it.
The eight factors in the bulletin are qualitative, and none of them is a threshold. A holder who rebalanced a few times last year, or sold a position that had run, is a long way from the facts in front of the Court.
None of this touches what the account was built for. Investing that does not amount to carrying on a business sits outside the business charge in subsection 146.2(6), and our ranking of the best TFSA stocks in Canada is built around compounders held for growth rather than turnover.
Statutory text is quoted from the Income Tax Act as current to September 3, 2026, last amended June 18, 2026, and from the British Columbia Income Tax Act as current to September 22, 2026. Rates and brackets are as of September 26, 2026.
Disclaimer: The content on bestcanadianstocks.ca is for informational and entertainment purposes only and does not constitute financial advice. Past performance is not indicative of future results. Always consult a qualified financial advisor before making investment decisions. Statutory text is from the Income Tax Act on the Justice Laws Website, current to September 3, 2026 and last amended June 18, 2026, and from the British Columbia Income Tax Act on BC Laws, current to September 22, 2026, both fetched September 26, 2026. Case facts and quotations are from the published reasons of the Tax Court of Canada in 2023 TCC 17 and the Federal Court of Appeal in 2024 FCA 108. Rates are the Canada Revenue Agency’s published 2026 brackets; the federal comparison is our arithmetic on those rates.
