- The operating company — usually called the "Opco" — is the entity that actually runs the business.
- A holding company is a separate Ontario corporation whose purpose is to hold rather than operate.
- Here is the core logic: if the Opco is sued, goes bankrupt, or faces a major creditor claim, the claimant generally has access to the Opco's assets — but not to assets held in a legally…
If your Ontario business is incorporated and starting to generate real profits, you may have heard your accountant mention a "Holdco and Opco" structure. The idea of running two corporations can sound like overkill — more filings, more fees, more complexity. But for many growing businesses, the holding company vs. operating company structure is one of the most practical tools available for protecting what you've built and managing your tax position over the long term. This article explains how the structure works, why business owners use it, and what it costs you.
What Is an Operating Company (Opco)?
The operating company — usually called the "Opco" — is the entity that actually runs the business. It signs contracts, employs staff, invoices customers, carries inventory, and takes on liability every single day. If a client sues your business, or a supplier brings a claim, or an employee files a complaint, that action targets the Opco. Its assets — the bank accounts, receivables, equipment — are directly in the line of fire.
For most Ontario entrepreneurs, the Opco is the corporation they incorporated first. It has a CRA business number, an HST account, and likely a business bank account. It is the working engine of your enterprise.
What Is a Holding Company (Holdco)?
A holding company is a separate Ontario corporation whose purpose is to hold rather than operate. Typically, the Holdco owns shares in the Opco. It may also hold other assets — real estate, investment portfolios, or the accumulated retained earnings swept up from the Opco as dividends.
The Holdco does not sign customer contracts, employ frontline staff, or face the day-to-day commercial risks of running a business. It is deliberately passive. That passivity is exactly the point.
Why Bother? The Asset Protection Rationale
Here is the core logic: if the Opco is sued, goes bankrupt, or faces a major creditor claim, the claimant generally has access to the Opco's assets — but not to assets held in a legally separate Holdco.
By moving retained earnings out of the Opco and into the Holdco on a regular basis, you keep valuable savings out of harm's way. If the Opco fails catastrophically, the Holdco and its contents are generally shielded from that failure.
It is important to say clearly: this is not a guarantee. Courts can pierce the corporate veil in cases of fraud or where the two corporations are not genuinely separate. A personal guarantee on a business loan travels with you regardless of structure. The protection is real, but it has limits, and how well it works depends on how properly the two corporations are maintained and documented. A corporate lawyer can help you build and document the structure correctly.
Tax Planning: Inter-Corporate Dividends
One of the most attractive features of the Holdco / Opco structure is the ability to move money between the two corporations in a tax-efficient way.
When the Opco pays a dividend to the Holdco (its parent shareholder), that dividend is generally received by the Holdco tax-free under the connected-corporation rules in the Income Tax Act. As of writing, inter-corporate dividends between connected Canadian-controlled private corporations can be received without being taxed again at the corporate level — effectively allowing you to park retained earnings in the Holdco without triggering a second round of corporate tax. Verify the current rules with your accountant; these provisions can change.
The Holdco can then deploy that capital — invest it, purchase real estate, or hold it until you need it personally — on its own timeline and tax schedule.
Lifetime Capital Gains Exemption (LCGE) Planning
If you ever plan to sell your business, the structure you have now affects the tax you pay then.
Canadian tax law provides a Lifetime Capital Gains Exemption (LCGE) on the sale of shares of a qualifying small business corporation. As of writing, the LCGE threshold is in the range of hundreds of thousands of dollars per individual — but the exact amount adjusts periodically, so verify the current figure with your accountant and at CRA.
To access the LCGE, the shares you sell must be shares of a qualifying small business corporation, which means the corporation must meet tests relating to how its assets are used. Holding passive investments directly inside the Opco can cause problems with those tests. The Holdco / Opco structure, when set up and maintained properly, can help preserve your ability to qualify — but this requires careful planning with both a lawyer and an accountant before a sale, not after.
Estate Freezes: A Brief Mention
Growing businesses sometimes use the two-corporation structure as a platform for an estate freeze — a technique that locks in the founder's share value at today's level and lets future growth flow to the next generation or key employees through new share classes. The mechanics are beyond the scope of this article, but it is worth knowing that if estate planning is on your horizon, a Holdco / Opco structure gives you the right building blocks to start from.
When Does This Structure Make Sense?
This setup is generally worth the cost when:
- Your business generates retained earnings you do not need personally right away
- Your Opco faces meaningful liability exposure (construction, professional services, product liability)
- You are building toward a future sale and want to preserve LCGE eligibility
- You have estate planning goals that involve transferring business value over time
It is less compelling for a business that is owner-dependent, pays out all earnings as salary, and carries little retained profit.
The Honest Downsides
No structure comes without trade-offs:
- Two sets of annual filings. Two corporate tax returns, two sets of minute books, two registered offices.
- Ongoing legal and accounting costs. Maintaining two corporations properly costs more than maintaining one.
- Complexity. Intercompany transactions need to be documented and priced at arm's length.
- Not a magic shield. Personal guarantees, fraudulent conveyances, and sham transactions can all defeat the protection.
If your business is small and not yet generating meaningful retained earnings, the cost may not be justified yet.
A Note on Ontario Corporate Law
Ontario corporations are governed by the Business Corporations Act (Ontario), commonly called the OBCA. One change worth noting: Ontario removed its Canadian-residency requirement for directors in 2021. You no longer need a Canadian resident to sit on the board of an Ontario corporation, which gives businesses with international ownership more flexibility in structuring their Holdco.
Frequently asked questions
Do I need a holding company if I already have a corporation?
Not automatically — it depends on your situation. If your corporation is building up retained earnings, faces real liability, or you are thinking about selling one day, a Holdco is worth discussing with your lawyer and accountant. If your business is early-stage and cash-constrained, the extra cost may not be justified yet.
Can I set up a Holdco at any time, or does it need to happen at incorporation?
You can add a Holdco after the fact, but the mechanics are more complex — a share reorganization or rollover is typically required, and there are tax implications to navigate. It is easier to structure things correctly from the start. That said, it is rarely too late; it just takes more planning.
Is the Holdco also taxed on dividends it receives from the Opco?
Under current rules, inter-corporate dividends between connected Canadian-controlled private corporations are generally received tax-free at the Holdco level. As of writing, this is one of the main tax advantages of the structure — but the rules are technical and change over time. Confirm the current treatment with your accountant.
Who should I talk to: a lawyer or an accountant?
Both. The legal structure — how the shares are set up, what the corporate records look like, how assets are transferred — is lawyer territory. The tax strategy and whether the numbers actually work for your situation is accountant territory. The two need to work together, and at Treadstone Law we are comfortable collaborating with your existing accountant or recommending one.
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