Most IT contractors who cross into consultancy territory do not notice the moment it happens. There is no legal event, no CRA registration that marks the transition. A second project runs in parallel with the first. A subcontractor covers a gap. A client asks for a team rather than a resource. The work expands, and the structure underneath it has not kept up.
This guide covers what the transition actually is, four signals that it has already happened, what the CCPC structure starts to show strain on, and the accounting and tax questions that become more complex once you are operating as a consultancy rather than as a solo contractor.
What the Transition Actually Is
The shift from contractor to consultancy is a functional change in how value is delivered. A contractor sells time. A consultancy sells capability, and that capability does not depend entirely on the owner’s personal time.
That distinction has structural consequences. A contractor who incorporates and earns $300,000 is still selling their own hours to clients. An owner who earns $300,000 because three consultants are each billing under a single entity has crossed into different territory: multiple employment-like relationships, project-level financial tracking, shared overhead, and compensation decisions that involve more than one person.
The tax and accounting complexity does not scale with revenue. It scales with structure. Two consultants working under one corporation produce questions that a single incorporated contractor never faces.
Four Signals the Transition Has Happened
You have hired a subcontractor. The first practical signal is engaging someone else to do billable work on your behalf. Whether that person is a friend filling in on a short-term basis or a specialist brought in for a specific project, the moment money flows from your corporation to another person for work your client is paying for, several things change.
You may have T4A reporting obligations depending on who is being paid and how the relationship is structured. CRA requires information returns for qualifying payments to contractors, and the rules apply differently depending on the nature of the payee and the payment. This is often missed in the first year it applies. T4A slips, where required, are due at the end of February following the payment year.
You also have a worker classification question. CRA assesses whether the subcontractor was genuinely operating as an independent contractor or was functionally an employee. If CRA determines the person was an employee, you are liable as the employer for CPP and EI contributions, penalties, and interest covering the period in question. This is not a theoretical risk. CRA has pursued it against small firms that treated workers as contractors based on informal arrangements.
Your GST/HST position also shifts. If the subcontractor is GST/HST-registered, their invoices to you carry GST/HST that you can claim as an input tax credit. If they are not registered (under the $30,000 threshold), there is no ITC to claim on those payments. Tracking whether each subcontractor is registered, and recording the GST/HST separately on each invoice, becomes part of your bookkeeping process.
You have multiple concurrent clients with different teams. A contractor working sequentially for different clients is still a solo operation. A firm running three active projects simultaneously, with different people on each, is not.
Multiple concurrent projects introduce project-level financial tracking. Knowing whether a specific engagement is profitable requires capturing revenue, subcontractor costs, and direct expenses per project, not just at the entity level. QuickBooks and similar tools support this through class or project tracking, but it requires deliberate setup and consistent categorization. Firms that run multiple concurrent projects without project-level tracking accumulate a cost picture that cannot be used to make decisions about pricing, staffing, or client selection.
One reason many consultancies face less PSB risk than solo contractors is that clients are purchasing a firm’s capacity rather than the personal services of a specific individual. The ability to assign work to subcontractors, maintain multiple clients simultaneously, and operate under the firm’s own processes can strengthen the argument that the business is carrying on an independent commercial activity rather than a disguised employment relationship. The factors that CRA assesses in a PSB review, control, integration, and ability to substitute, tend to read differently when a firm is delivering the work rather than one person billing through a corporate shell. That said, the analysis still depends on how each specific client engagement is structured, and the benefit is not automatic.
A client starts asking for a team, not a resource. Sometimes the market marks the transition for you. A client who was satisfied engaging you personally starts asking whether you can bring a second developer, provide QA support, or whether your firm can take on a broader workstream.
That shift in how a client frames the request is meaningful. They are no longer buying access to your skills. They are buying a result that your firm is responsible for staffing and delivering. When that happens regularly, the question is no longer whether you are a consultancy. It is whether your structure reflects the way you are already operating.
Your corporation’s structure is being asked to do things it was not designed for. A CCPC set up to receive consulting income from one person works cleanly at small scale. The problems surface when the same entity is used to manage multiple workers, accumulate retained earnings for future distribution, or support compensation decisions among people with different roles and contributions.
The salary vs. dividend question becomes more complex when there are two or more shareholders. The salary and dividend trade-off for a solo contractor depends on their personal tax situation and CPP planning. For a firm with two shareholders who have different income levels, different personal needs, and different roles in the business, the same question has twice as many variables and the answers for each person are interdependent.
The underlying tension often comes down to role. One partner brings in clients. One partner delivers the work. One partner handles operations and administration. Those contributions are real, but they do not translate neatly into equal compensation, and the corporate structure does not resolve how to allocate value among people who are contributing differently. That question, left unaddressed, tends to resurface at year end when compensation decisions have to be made.
The Tax on Split Income (TOSI) rules constrain how dividends can be paid to family members or shareholders who are not sufficiently involved in the business. For a consulting firm where one partner does sales and another does delivery, CRA may scrutinize whether dividend income paid to the less-active partner reflects a genuine return on business activity or is a form of income splitting. These rules apply to Canadian-controlled private corporations and their shareholders, and they are assessed on a per-year basis.
The small business deduction is available on the first $500,000 of active business income per corporation, subject to provincial SBD rates. For most solo contractors, this limit is not approached. For a consulting firm billing through one corporation with three consultants, the limit becomes relevant, and may be reached in a strong year. The SBD is also subject to phase-out rules tied to passive income and to associated corporation rules that reduce the limit when two or more corporations are controlled by the same person or group.
The Associated Corporation Question
This question arises most commonly when two or more consultants each operate through their own corporation and work together regularly under an informal arrangement.
If CRA determines that two corporations are associated, they share a single $500,000 SBD limit rather than each having their own. Two consultants each billing $400,000 through their own corporations appear to each qualify for the SBD in full. If CRA determines they are associated, the combined limit of $500,000 applies to both, and one or both corporations will lose the SBD on a portion of their income.
Association is based on control, not on working relationship. Two corporations controlled by the same person are associated. Two corporations where the same group of people own shares with enough voting control can also be associated. Corporate structures involving multiple owners and corporations can raise associated corporation issues and should be reviewed before they are implemented.
The associated corporation question is one reason that a consultancy with multiple owners benefits from reviewing the corporate structure before it grows to the point where the arrangement is difficult to change.
What Changes in the Books
Revenue tracking. A solo contractor tracking revenue by client gets a reasonably clear picture at year end. A firm with multiple clients and multiple billable resources needs revenue tracked by client and by the person or team delivering it. Gross margin per project requires capturing both the revenue and the direct cost of delivery.
Accounts receivable. Consultancies typically have larger outstanding receivables than solo contractors because multiple projects are active simultaneously. A 30-day collection cycle that causes no cash flow stress for a one-person operation can create real liquidity pressure for a firm with several subcontractors paid on net-15 terms while clients pay on net-45. The gap between paying the people doing the work and receiving payment from the client is a cash flow structure, not just a timing detail.
Payroll and subcontractor records. If any worker becomes an employee rather than a subcontractor, payroll obligations follow: CPP, EI, income tax withholding, T4 slips, and payroll remittances. The distinction between employee and subcontractor is not a choice the firm makes. CRA assesses it based on the actual working arrangement. A firm that treats a long-term, integrated worker as a subcontractor to avoid payroll administration may be accepting the risk of a retroactive CRA determination that the person was an employee throughout.
T4A slips for subcontractors, combined with the CRA worker classification risk, mean that every billable worker relationship needs to be assessed for its correct reporting category and documented accordingly.
Insurance. A solo contractor typically carries professional liability (errors and omissions) insurance sized to their own practice. When a consultancy starts delivering work through subcontractors and taking on broader project scope, the coverage question changes. Professional liability limits, cyber liability, and commercial general liability all bear review as the firm grows. These are not accounting items, but the premiums are a business expense, and gaps in coverage can affect the firm’s risk profile in ways that show up in the books after a claim.
How Most Consultancies Are Structured
Growing consultancies often reach a point where several consultants operate through their own separate corporations while working together under a common brand or arrangement. In many cases, the consultants involved started as independent contractors before gradually working together on larger projects. At that stage, the structure raises its own questions: how revenue and overhead are allocated, whether the corporations are associated for SBD purposes, how the brand and client relationships are owned, and whether a separate operating entity would clarify the arrangement.
That structure, individual CCPCs working together under a shared umbrella, is common in part because it defers the hard decisions about ownership and profit sharing. It also carries the most structural risk if those decisions are never made formally. The questions a consultancy faces at five or ten people are the same ones it should have addressed at two.
The Decision to Make Before It Is Urgent
The most common mistake firms make is using the corporate structure that worked at sole-contractor scale until it visibly breaks. A CCPC that has been working cleanly for years may not be the right vehicle for a three-person consultancy, but the problems only surface when a structural question becomes acute: a partner wants to exit, the SBD limit is exceeded, TOSI applies, or CRA reassesses the worker classification of a subcontractor.
The decisions worth reviewing before that happens are:
- Whether the existing corporation should remain the operating entity or whether a new structure is more appropriate
- How compensation among owners will be determined and documented
- Whether workers are being classified and reported correctly
- Whether project-level financial tracking is in place
- Whether the SBD limit is at risk of being shared under the associated corporation rules
None of these questions are resolved by staying small. A two-person firm billing $600,000 combined has more complexity to manage than a solo contractor at the same revenue level.
Related Articles
- Personal Services Business Risk for Incorporated IT Contractors covers how CRA assesses PSB status, which applies differently once a consultancy can assign work to subcontractors rather than the owner personally.
- Salary vs. Dividend for Incorporated IT Contractors covers the trade-off for a single shareholder. The same decision becomes more complex when there are two.
- Should I Incorporate as an IT Contractor? covers the original incorporation decision, which informs whether the existing structure is suitable for firm-level operations.
Scope of This Article
This article covers the functional and structural signals that mark the transition from solo contractor to consultancy, and the accounting and tax questions that follow. It does not cover:
- The legal mechanics of adding a shareholder or issuing shares
- Shareholder agreement terms or partner exit provisions
- Holdco or opco structure design for multi-partner firms
- Specific TOSI calculations or the CRA’s published guidance on excluded shares
- Quebec-specific rules for multiple-shareholder CCPCs
The goal is to make the transition visible before it becomes a problem. Most of the questions above have better answers when they are addressed before the structure is locked in.
Get in touch if your corporation was set up for solo contracting and you are now operating more like a consultancy.