
Corporate Structures
An inappropriate corporate structure can prevent a shareholder from accessing the capital gains exemption, trigger TOSI on every dividend, or leave passive income accumulating in the wrong entity. Custom written for CPAs who need to review and design structures that hold up under current rules.
Hugh Woolley
Corporate structure is one of the most consequential decisions in owner‑manager tax planning. Get it wrong and a client may be unable to claim the $1,250,000 capital gains exemption, face TOSI on family dividends, or accumulate passive income that grinds away the small business deduction. This course covers the objectives of corporate structure design, the SBC purity requirement and purification strategies, the structural tradeoffs between trust sandwich arrangements and direct ownership, the interaction of structure with TOSI excluded shares, and what the three structural strikes of 2017‑2024 — TOSI, the SBD passive income grind, and NERDTOH segregation — require of any well‑designed corporate group today.
ABOUT THE COURSE
Corporate structures often evolve without deliberate planning — a Holdco is added for creditor proofing, a second operating company is acquired under it, a spouse ends up owning Realty Co. Years later, each of those decisions has accumulated tax consequences that nobody modeled at the time. The course opens by testing five commonly encountered structures against current rules, and in most cases something is wrong. These are not exotic planning failures — they are structures that CPAs encounter every week.
The five problem structures covered:
- Structure 1 — A & B / Holdco / Opco: a holding company receives dividends from the operating company and accumulates an investment portfolio; the passive income in Holdco now grinds down the small business deduction of Opco (associated corporations); and Holdco shares cannot qualify for the capital gains exemption because of the passive assets. The fix depends on whether A and B are related: if unrelated, separate holdcos per shareholder can hold passive assets outside the associated group entirely
- Structure 2 — Holdco / Opco 1 + Opco 2: an individual's access to the capital gains exemption is blocked because shares of Opco 1 and Opco 2 are held by Holdco, not directly; Holdco realizes the capital gain on a sale, not the individual; and splitting Holdco into two corporations to fix this cannot be done tax-free where the purpose is to facilitate a sale to an arm's length person — a common and costly mistake
- Structure 3 — Opco (H) and Realty Co (W): an operating company pays rent to a related corporation owned by the spouse; the two corporations are related but not associated; rental income in Realty Co is therefore passive, taxed at approximately 50%, while Opco deducts the rent at 12%; the fix is to make them associated, converting the rental income in Realty Co to active business income taxed at a lower rate
- Structure 4 — Trust / Partnership with losses: a trust owns interests in a partnership that is generating losses; the losses flow to the trust but are trapped there and cannot be allocated to individual beneficiaries; had the beneficiaries owned the partnership directly, the losses would have been deductible against their other income
- Structure 5 — Holdco (10%) / Opco: a holding company owns exactly 10% of Opco by votes and value; because the threshold for "connected" corporation status requires ownership of more than 10%, dividends paid from Opco to Holdco are subject to Part IV tax at 38½%; increasing ownership to just over 10% — an almost inconsequential change to the structure — would eliminate this tax entirely
The course then covers the five objectives every corporate structure must now serve and why they are often in conflict: creditor proofing, tax deferral, income splitting under TOSI, access to the capital gains exemption and the Canadian Entrepreneurs Incentive, and estate planning. No single structure achieves all five without tradeoffs. TOSI is typically the breaking point.
The Trust Sandwich is covered in full: how common shares of Opco are issued to a family trust; how a corporate beneficiary (Holdco) receives dividends tax‑free from the trust provided Opco and Holdco have common related party control (so they are connected for Part IV tax purposes); and how this allows surplus funds to flow out of Opco to Holdco without personal tax, keeping Opco pure as a small business corporation for the capital gains exemption. The key limitation: holding Opco shares via a trust blocks the excluded shares exception, because the shares are not held directly by a natural individual. The trust sandwich therefore creates a structural choice between purification flexibility and TOSI‑free dividends to family members — it is very difficult to achieve both simultaneously from the same structure.
The section 74.4 clause — often inserted in trust agreements to prevent the s.74.4 interest imputation from running on the preferred shares held by the settlor — is also covered. Inserting a s.74.4 clause precludes designated persons (spouse, minor children, grandchildren) from benefiting under the trust, which solves the interest imputation problem but also prevents them from receiving capital gains allocations and using their capital gains exemption. Practitioners must understand this tradeoff before recommending a s.74.4 clause.
The course concludes with the hybrid structure that achieves the most objectives simultaneously: individual shareholders hold Opco shares structured to qualify as excluded shares (enabling TOSI‑free dividends and direct CGE access for those individuals); a family trust holds additional Opco shares with a corporate Holdco as a beneficiary (enabling purification and CGE multiplication among trust beneficiaries including children); and both purposes are served within the same corporate group. The one remaining tradeoff: Holdco is associated with Opco, so passive income in Holdco still affects the SBD grind. The structure requires careful management but comes closer than any other to achieving all objectives at once.
Get the framework to evaluate, design, and fix corporate structures against current TOSI, SBD, CGE, and NERDTOH rules. Learn at your own pace with instant access.
Corporate Structures
Seminar Snapshot
Corporate Structures
Owner-Manager · Course Syllabus
- Structure 1 (A & B / Holdco / Opco): Holdco holds investment portfolio — passive income triggers SBD grind on Opco (associated); Holdco shares blocked from CGE by passive assets; fix: if A & B are unrelated, separate holdcos per shareholder can hold passive assets outside the associated group; if related, use trusts
- Structure 2 (Holdco / Opco 1 + Opco 2): individual cannot access CGE because they hold Opco shares indirectly through Holdco; Holdco realizes the gain, not the individual; splitting Holdco into two is taxable if purpose is facilitating a sale to arm's length — a common and costly mistake
- Structure 3 (Opco (H) / Realty Co (W)): corporations are related but not associated; rental income in Realty Co is passive, taxed at ~50%; Opco deducts at 12% SBD rate — mismatched; fix: make Realty Co and Opco associated so rental income becomes active business income at lower rate
- Structure 4 (Trust / Partnership with losses): partnership losses flow to trust but cannot be used by the trust and cannot be allocated to beneficiaries; if beneficiaries had owned the partnership directly, losses would have been deductible against their personal income
- Structure 5 (Holdco 10% / Opco): Holdco owns exactly 10% of Opco — not "connected" because the threshold is more than 10% by value and votes; dividends from Opco to Holdco attract Part IV tax at 38½%; increasing ownership to just over 10% eliminates this tax entirely with an almost inconsequential ownership change
- General principle: structures often evolve in unplanned ways and are rarely reviewed until a sale; by then, restructuring may be impossible without personal tax or a taxable event; review every structure before it matters
- Creditor proofing: pay dividends to a holding company and optionally re‑lend on a secured basis; keeps surplus funds beyond reach of Opco's creditors
- Tax deferral: keep active business income in the corporate group; the SBD rate of approximately 12% vs. the top personal rate of approximately 47.74% produces a substantial deferral advantage
- Income splitting: divert income from a high‑rate taxpayer to a low‑rate family member; TOSI prevents most of this unless an exception applies; use trusts with caution — TOSI limits what can be distributed without triggering top‑rate tax
- Capital gains exemption: $1,250,000 per individual (plus up to $2,000,000 under the Canadian Entrepreneurs Incentive); requires Opco to be an SBC (90% active assets); shares held directly by individual, not through Holdco or trust without distribution
- Estate planning: use trust to allocate capital gains to multiple beneficiaries for CGE multiplication; pass shares to the next generation; limited by TOSI if trust holds private company shares
- TOSI applies to dividends from private corporations where there are two or more related shareholders; income caught by TOSI is taxed at the top personal rate regardless of the recipient's actual marginal rate
- Active participation exception: individual aged 18+ who works in the business at least 20 hours per week during the business period; or 20 hours per week in any five prior years — qualifies for life once met
- Age 65 spousal exception: if one spouse is exempt from TOSI for any reason, the other spouse is also exempt — provided the exempted spouse is 65 or older
- Excluded shares: shares meeting five specific conditions (below); only available to individuals who turned 24 before the current tax year
- No structure currently meets all five objectives without giving something up; TOSI is typically the objective sacrificed
- Revenue from services is under 10% of total revenue (eliminates most professional corporations and service businesses)
- The corporation is not a professional corporation
- Under 10% of the corporation's income comes from a related corporation — a Holdco receiving dividends from Opco may be disqualified if those dividends represent 10% or more of Holdco's total income
- The shares are held directly by a natural individual — not through a trust, holding company, or any other intermediary
- The individual holds 10% or more of both the votes and the FMV of all issued shares of the corporation, and turned 24 before the current tax year
- Holdco blocking excluded shares: Holdco receives dividends from Opco equal to 10%+ of Holdco's income — disqualifies Holdco under the related corporation income test; Holdco shares do not qualify for excluded share status
- Approach 1: Holdco stops receiving dividends from Opco — but then Holdco has no income source from which to pay dividends to individuals; the structure loses its income distribution function
- Approach 2: amalgamate Opco and Holdco into Amalco — eliminates the related corporation income issue; shares of Amalco can qualify as excluded shares; loses structural separation but may be appropriate if non‑tax reasons for the Holdco are limited
- Trust blocking: shares held through a trust do not satisfy the "held directly by a natural individual" requirement — excluded shares and trust sandwich are mutually exclusive for the same shareholding
- Alternative: freeze Opco and issue new common shares directly to individual family members; these new shares can qualify as excluded shares as their value grows to 10%+ of total share value
- Common shares of Opco issued to a family trust; trust has family member beneficiaries plus a corporate beneficiary (Holdco); Opco also has preferred shares held by Mr. A (or a related person) for voting control
- Opco pays dividend on common shares to the trust; trust allocates dividend to Holdco by year‑end; dividend flows from Opco through trust to Holdco tax‑free
- For the tax‑free flow to work, Opco and Holdco must be "connected" — meaning Holdco is controlled by a person who controls Opco, or vice versa (common related party control); otherwise Part IV tax applies at 38½%
- Effect: surplus cash moves out of Opco to Holdco without personal tax; Opco's passive asset ratio stays low; Opco remains qualified as a small business corporation for the capital gains exemption
- CGE multiplication: the trust can allocate capital gains on a sale of Opco shares to multiple beneficiaries, each of whom can claim their own capital gains exemption; minor children and grandchildren can benefit unless a s.74.4 clause is in place
- TOSI: holding Opco shares through a trust blocks the excluded shares exception; dividends paid from the trust to individual beneficiaries are split income unless the beneficiary is active in the business or meets another exception; the trust sandwich sacrifices TOSI‑free dividends
- Notifiable transaction risk: where the corporate beneficiary of the trust (Holdco) is itself owned by a trust, or by non‑residents, the structure may be a designated notifiable transaction under s.237.4; all existing trust sandwich arrangements should be reviewed
- Section 74.4 clause: if the trust has beneficiaries who are designated persons of the preferred shareholder (spouse, minor children, grandchildren under 18), s.74.4 interest imputation runs on the preferred shares unless Opco qualifies as an SBC throughout each quarter; inserting a s.74.4 clause in the trust agreement prevents the imputation — but also prevents those designated persons from receiving any benefit under the trust, including CGG allocations; practitioners must understand this tradeoff before recommending the clause
- Dividend timing: trust must pay or make payable dividends to Holdco by the trust's year‑end; otherwise dividends are taxable in the trust itself at the top rate
- Individual shareholders (age 25 and older) hold shares of Opco directly; shares are structured to qualify as excluded shares — 10%+ of votes and value per person, no Holdco in the chain, revenue conditions met
- A family trust also holds shares of Opco; a corporate Holdco is a beneficiary of the trust; Opco and Holdco share common related party control so they are connected (no Part IV tax)
- Function 1 — Income splitting: individuals holding excluded shares can receive TOSI‑free dividends from Opco once they turn 25; no active participation requirement
- Function 2 — Purification: dividends paid by Opco to the trust, then allocated to Holdco as corporate beneficiary, move surplus cash out of Opco tax‑free; Opco remains pure as a small business corporation
- Function 3 — CGE multiplication: the trust can allocate capital gains on sale to multiple beneficiaries (including children under 18 if no s.74.4 clause precludes them), multiplying the CGE across the family
- Direct individual ownership also allows immediate CGE access for those individuals without needing to distribute shares out of the trust first
- Remaining disadvantage: Holdco is associated with Opco; passive income accumulating in Holdco is counted against Opco's SBD threshold; the passive income grind applies to the combined group
- If Holdco passive income exceeds $50,000 the SBD starts to be ground away; at $150,000 the federal SBD is eliminated; Ontario SBD survives (Ontario did not adopt the federal passive income grind) — creating the anomalous situation where losing the federal SBD can be advantageous if the corporation generates GRIP and pays eligible dividends
- Compliance requirements: corporate returns for Opco and Holdco; trust return; careful management of dividend timing, connected corporation status, and the s.74.4 clause position
- This is not a perfect structure — no structure is; but it comes closer than any alternative to achieving creditor proofing, deferral, income splitting, CGE access for multiple family members, and purification simultaneously
- Key action for practitioners: review every existing owner‑manager corporate group against this framework; identify which objectives are unmet; identify which changes can still be made; and flag any configuration that may now constitute a notifiable transaction
Meet Your Presenters
Michael Cadesky
Michael Cadesky is the managing partner at Cadesky Tax and a committed contributor to the tax and accounting professions since 1980, earning the title of Fellow from CPA Ontario. He is a past governor of the Canadian Tax Foundation, past chair of STEP Canada and STEP Worldwide, and past chair of the CPA Canada Tax Committee for Small and Medium-Sized Enterprises. Michael is also the co-author of 11 books on tax subjects and the author or co-author of numerous papers and articles on Canadian and international taxation.
Hugh Woolley
Hugh Woolley is an independent tax consultant who has taught income tax for over 30 years for many professional organizations. Hugh has written courses for CPA Canada and over 10 papers for the Canadian Tax Foundation and STEP Canada. From 1990–1992 he worked at the CRA's Rulings Directorate in Ottawa writing "butterfly" tax rulings. Hugh is a past Governor of the Canadian Tax Foundation.
FAQ
When can I access the course?
Immediately upon purchase. All course materials are available on-demand, allowing you to start learning right away.
How long do I have access?
You have 1-year all-access to the course materials. Watch and review the content as many times as you need, at your own pace.
Does the course provide CPD?
Yes. Upon completion, you will receive a verifiable CPD certificate indicating all instructional learning hours and required details.
What's included in the course?
Full video recording of the seminar, plus slides with detailed notes for your reference. Additional resources may be included.
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Yes. Access the course from your computer, tablet, or phone — any device with internet access.

