The capex math is the real argument
Every machine is bought with after-tax dollars, so the tax rate on retained profit sets how fast a shop can re-equip. Inside a corporation, active income up to $500,000 is taxed at about 12.2% combined in Ontario; the rest compounds toward the next press, the next cell, the down payment on the building. Run the same shop unincorporated and the profit stacks onto your personal return, where Ontario's top combined rate reaches 53.53% — the growth budget gets taxed before it exists.
That gap is a deferral, not an escape: tax arrives when you eventually pay yourself. But a deferral measured in years, applied to a business that must keep buying iron, is the difference between financing growth from earnings and financing it entirely from a lender. One caution for later: the $500,000 limit is shared across an associated group of corporations, so the arithmetic holds exactly until you start adding companies — one more reason the structure below begins simple.
Your parts end up inside someone else's product
A component that leaves your dock gets welded, bolted or assembled into things you never see again, and the purchase orders you sign say so: warranty terms, rework and back-charge clauses, indemnities drafted by a customer's lawyer. A corporation puts a limited-liability layer between those clauses and your house. It works alongside commercial general liability and product liability insurance, not instead of them — but it is the layer the other two stand on, and it costs the least.
Debt belongs on the same name. Equipment loans, the premises lease and the general security agreement a lender registers under the Ontario PPSA should sit on the corporation from the first machine. Personal guarantees are usually unavoidable at the start; they only narrow over time if the corporation has been the borrower all along, building the financial statements — sometimes a compilation or review engagement — that let a credit desk lean on the company instead of you.
One corporation now, room for two later
Most shops should start as a single corporation and add a holding company when there is something worth protecting. What matters at incorporation is drafting the share structure so that move stays cheap.
| Where it belongs | Operating company | Holding company (when the time comes) |
|---|---|---|
| Production, payroll, customer contracts | Yes — this is where the risk lives | Never |
| The building | Acceptable at the start | Better here, leased to the opco, out of creditors' reach |
| Surplus cash | Working capital only | Swept up by intercorporate dividend, generally tax-free |
| Equipment | Usually here, matching the debt that bought it | Case by case — sometimes owned here and leased across |
Keeping the operating company lean also protects a sale: shares that qualify as small business corporation shares let each shareholder shelter up to $1.25 million of gain under the lifetime capital gains exemption, and surplus cash left to pile up inside the opco is the usual reason they stop qualifying. When the holdco moment arrives, the reorganization is done on a tax-deferred basis through Corporate Restructuring — far cheaper than unwinding a structure that was wrong from day one.
The setup, in the right order
The mechanics reward sequence. Articles first — Ontario OBCA or federal CBCA — with share classes drafted for where the company is going: room for a spouse's shares where the tax rules genuinely allow income to flow, room for the future holdco freeze. A NUANS-searched name or a numbered company operating under a registered business name both work; customers care about the trade name, lenders care about the legal one. Then the CRA program accounts — corporate tax, HST, payroll — and WSIB registration before the first hire walks onto the floor. Register for HST at incorporation rather than waiting for the $30,000 small-supplier threshold: a shop's build-out is dense with 13% input tax credits, and registration is what lets you recover them from the first fit-out invoice.
One decision manufacturers get to make exactly once, cheaply: the fiscal year-end. Pick the slow month, and the year-end inventory count stops fighting production for the floor — a count in your dead season is faster, cleaner and easier to defend than one taken mid-rush. Our Incorporation engagements handle the articles, minute book, registrations and that first set of choices as one package, quoted in writing after a free 15-minute discovery call, for shops across Mississauga and the GTA.
