Corporate groups rarely stay tidy. Over the years a family business or an investment structure accumulates companies — an operating company here, a holdco there, a real-estate company, a dormant shell left over from a deal that never closed, a second holdco created for a financing that has long since been repaid. Each entity carries its own filing obligations, its own minute book, its own bank account, and its own annual cost. Periodically it makes sense to collapse the structure back down to what the business actually needs. The two principal tools for doing that on a tax-deferred basis are the amalgamation under section 87 of the Income Tax Act and the wind-up under section 88.
Why simplify a group
Simplification is driven by a mix of cost, risk, and clarity. Each corporation in a group costs money to maintain — annual financial statements, T2 returns, corporate registry filings, and professional fees. Dormant companies generate no income but still consume compliance effort and create exposure if their filings lapse. Tangled cross-holdings make it harder to see who owns what, complicate creditor protection, and can frustrate a future sale or financing where a purchaser wants a clean structure. Collapsing redundant entities reduces the annual burden, removes points of failure, and makes the group legible to the people who have to run it, finance it, or eventually buy it. The goal is to keep the structure the business needs and shed the structure it has merely inherited.
Section 87 amalgamation
An amalgamation combines two or more corporations into a single continuing corporation. Under corporate law, the amalgamated company succeeds to all of the property, rights, and liabilities of its predecessors; the predecessors cease to exist as separate entities but their substance carries forward into the amalgamated company. Where the conditions of section 87 are met — broadly, that all of the predecessor corporations are taxable Canadian corporations, that all of their property and liabilities become property and liabilities of the new corporation, and that the predecessor shareholders receive shares of the amalgamated corporation — the amalgamation occurs on a tax-deferred basis. There is no deemed disposition of the predecessors' assets at fair market value, and the shareholders' shares roll over into shares of the amalgamated company.
Amalgamation is often the right tool when two active corporations are being combined, when a parent and a subsidiary are being merged and there is a reason to keep a single continuing entity rather than collapse one into the other, or as a step within a larger reorganization such as the wind-up phase of a pipeline. Because the amalgamated company is treated for many purposes as a continuation of its predecessors, the mechanics of carrying forward tax attributes are generally favourable — though, as discussed below, there are timing rules to respect.
Section 88 wind-up
A wind-up dissolves a subsidiary into its parent. Subsection 88(1) provides a tax-deferred wind-up where a taxable Canadian corporation is wound up into a parent that owns at least 90% of the shares of each class. The subsidiary's assets are distributed to the parent on a rollover basis, generally at their cost amounts, and the parent's shares in the subsidiary are cancelled. The subsidiary then ceases to exist. Subsection 88(1) also contains the "bump" — the ability, in defined circumstances, to increase the cost base of certain non-depreciable capital property the subsidiary held, which can be valuable where the parent intends to sell those assets afterward.
Where the 90% threshold is not met — a wind-up of a less-than-wholly-owned subsidiary, or a wind-up of a corporation that is not a subsidiary at all — subsection 88(2) applies instead, and the consequences are different: it generally produces a deemed dividend and a disposition, without the rollover treatment of subsection 88(1). The 90% ownership test is therefore the first question in any wind-up analysis.
Amalgamation versus wind-up: choosing the tool
The two routes often reach a similar economic destination — fewer corporations — but they are not interchangeable. A rough guide:
- Use a section 88(1) wind-up when a parent owns at least 90% of a subsidiary and wants to absorb it, particularly where the subsection 88(1) bump on the subsidiary's non-depreciable capital property is useful, or where the parent should remain the surviving entity with its existing history, contracts, and registrations intact.
- Use a section 87 amalgamation when combining corporations that are not in a 90% parent-subsidiary relationship, when two active companies are being merged into one, or when a single continuing entity (rather than the survival of one specific company) is the goal.
Non-tax considerations frequently decide the question: which entity holds the valuable contracts, licences, or registrations that would be costly to reassign; which name the business wants to keep; and what the corporate-law steps and timelines look like under the governing statute. The tax analysis sets the boundaries, but the practical details often pick the tool.
Tax attributes: what survives, and when
The reason these transactions need careful planning is that corporations carry tax attributes — non-capital losses, net capital losses, undepreciated capital cost pools, investment tax credits, refundable dividend tax balances, the capital dividend account, safe income, and paid-up capital — and a sloppy combination can waste them. On an amalgamation, the amalgamated corporation generally inherits the predecessors' attributes, but with timing rules: for example, a predecessor's non-capital losses generally become available to the amalgamated corporation only in its first taxation year after the amalgamation, and continue to be subject to the streaming and acquisition-of-control restrictions that would have applied to the predecessor. On a subsection 88(1) wind-up, the parent generally succeeds to the subsidiary's loss carryforwards and other attributes, again subject to timing and to the acquisition-of-control rules.
Several specific balances deserve attention in any simplification:
- Loss carryforwards. Non-capital and net capital losses survive, but the timing of their availability and the continuity-of-business and acquisition-of-control limitations have to be checked so a loss is not stranded or denied.
- Capital dividend account. The CDA is a valuable balance that allows tax-free capital dividends. It carries forward through these transactions, but it must be tracked accurately so the ability to pay tax-free capital dividends is not lost.
- Paid-up capital. PUC determines how much can be returned to shareholders without a deemed dividend. The PUC of the combined or surviving entity has to be reconciled carefully.
- Refundable dividend tax (RDTOH) and the GRIP/LRIP pools. These integration accounts carry forward and affect the tax cost of future distributions; they should be reconciled as part of the plan.
The acquisition-of-control overlay
A recurring trap in any combination is the acquisition-of-control rule. Where a simplification step results in a change of who controls a corporation, the Income Tax Act imposes a deemed year-end, restricts the use of certain losses, and can require an immediate writedown of accrued losses on property. A simplification undertaken without checking whether control changes can inadvertently trigger these consequences and waste the very attributes the plan was trying to preserve. Confirming that no unintended acquisition of control occurs — or planning deliberately around one if it does — is part of the up-front analysis.
Sequencing within a larger plan
Amalgamations and wind-ups are frequently the final step in a larger reorganization rather than a standalone event. They are the closing move in a pipeline, where the original corporation is wound up into or amalgamated with Newco after the holding period; they appear in pre-sale restructurings, where a group is simplified so a purchaser receives a clean target; and they show up in post-freeze tidying, where holdcos created for an estate freeze are later collapsed once their purpose is served. Because these transactions interact with so many other provisions — section 84.1, section 55, the stated-capital rules, the acquisition-of-control rules — they should be sequenced deliberately, with the order of steps and the timing of each chosen to preserve attributes and avoid deemed dividends.
A worked example: collapsing a redundant holdco
Consider a group where an operating company is owned by a holding company, and the holding company is in turn wholly owned by an individual. The holdco was created years ago for a financing that has since been repaid; it now holds nothing but the operating-company shares and a small cash balance, yet it still files its own T2, prepares its own statements, and pays its own annual fees. The owner wants to remove it. Because the holdco owns 100% of the operating company, a subsection 88(1) wind-up of the operating company into the holdco — or, depending on which entity should survive, an amalgamation of the two under section 87 — collapses the two layers into one on a tax-deferred basis. The combined company succeeds to the operating company's loss carryforwards, capital dividend account, and other pools, subject to the timing and acquisition-of-control rules. The redundant layer disappears, the annual compliance cost falls, and the structure is left with a single corporation doing the work that two were doing before. The order of steps matters: the wind-up or amalgamation is sequenced so no loss is stranded and the stated capital and integration accounts of the surviving entity are reconciled correctly.
Common questions about simplification
Will combining companies trigger tax? Done under section 87 or subsection 88(1), the combination is generally tax-deferred: there is no deemed disposition of assets at fair market value, and shares roll over. The exposure comes from getting the conditions wrong — falling outside subsection 88(1) into subsection 88(2), or triggering an unintended acquisition of control — which is why the analysis is done before any step is taken.
What happens to a company's tax losses when it is wound up or amalgamated? Loss carryforwards generally survive into the surviving or parent corporation, but their availability is subject to timing rules and to the continuity-of-business and acquisition-of-control restrictions. The plan has to confirm that the losses will actually be usable rather than stranded.
Should I amalgamate or wind up? Where a parent owns at least 90% of a subsidiary, a subsection 88(1) wind-up is often the cleaner route and can offer the bump on non-depreciable capital property. Where the corporations are not in that relationship, or two active companies are being merged into one, a section 87 amalgamation is usually the tool. Non-tax factors — which entity holds the valuable contracts and registrations, and which name the business wants to keep — frequently decide it.
Can dormant companies just be dissolved instead? A truly empty company with no assets, liabilities, or attributes can sometimes simply be dissolved. But if it holds anything of value or carries tax attributes worth preserving, a wind-up or amalgamation under the rollover rules is usually preferable to a bare dissolution.
How the work gets done
A simplification engagement generally begins with a map of the existing group: every entity, its assets and liabilities, its shareholdings, and its tax attributes. From there the plan identifies which entities can be combined or eliminated, chooses between amalgamation and wind-up for each step, sequences the steps to preserve losses and pools and to avoid unintended acquisitions of control, and prepares the corporate-law documentation — articles of amalgamation or dissolution, resolutions, and registry filings — alongside the tax filings. The accounting for the surviving entity's attributes is reconciled so the balances are accurate going forward. As with every reorganization, contemporaneous documentation is what allows the structure to hold up if the Canada Revenue Agency examines it later.
If your corporate group has accumulated entities that no longer serve a purpose, or you are simplifying ahead of a sale, a financing, or a succession, Barrett Tax Law can map the group, choose the right combination of amalgamations and wind-ups, and preserve the tax attributes that matter. The first consultation focuses on your structure and the realistic options for simplifying it.