Incorporating an interior design studio: timing, install liability, and the brand

Timing is your call — no regulator is waiting on you

Interior design in Ontario has no licensing body that must bless your corporate structure, which makes this one of the simplest incorporation decisions we advise on. ARIDO governs who may use the protected title, not how the business is organized; if you carry the title, confirm any practice-name rules with ARIDO directly, but no certificate attaches to the corporation itself. The decision is commercial, and designers tend to get it wrong in both directions — a numbered company wrapped around one condo refresh, or a sole proprietorship still signing six-figure procurement orders.

Three signals reliably mean it is time. First, profit beyond what you need to live on, because income retained in an Ontario corporation is taxed at roughly 12.2% on the first $500,000 instead of personal rates that pass 50%. Second, a project whose furnishing and construction budget dwarfs your design fee, because you are about to hold other people's money and goods. Third, the first hire, because an employer should be a company.

Installs are where a studio's risk concentrates

The dangerous day in interior design is not the presentation — it is the install. Custom pieces ordered months earlier arrive at a finished, occupied home; movers and trades work under your direction; a single scratch on a site-finished floor or a mirror dropped in a stairwell can cost more than the fee on the room. Those claims follow whoever signed the contract, and a sole proprietor signed it personally.

Procurement compounds the exposure. When you buy at trade price and resell at a markup, you briefly own the goods — in transit, in the receiver's warehouse, in the elevator. And the deposits clients pay you for custom furniture are your obligation to refund if a maker fails or a piece arrives wrong. A corporation puts all of that — the purchase orders, the deposits, the install-day contracts — on the company's account instead of your household's, with insurance as the first line and the corporate shield behind it.

Who signs what once the studio is incorporated

One standing exception applies no matter what the paper says: HST collected from clients and payroll deductions withheld from staff are trust amounts, and directors answer for them personally. A studio juggling deposits and vendor payments must keep those accounts untouchable.

The brand belongs in the corporation

A design studio's most saleable asset is its name, its portfolio, and the pipeline they generate — and that asset should sit inside the company from the start. Register the trademark in the corporate name, sign photography rights and publication releases through the company, and hold the website, domain, and social accounts as corporate property. A brand owned by the corporation can one day be sold, opened in a second city, or carried on by a senior designer buying in; a brand welded to a sole proprietorship dissolves with it.

Naming is the practical first step: a named Ontario corporation needs a NUANS search, and studios usually either build the corporate name from the brand or use a numbered company carrying the studio name as a registered business name. Either works — what matters is that contracts, invoices, and the trademark all trace back to the same entity.

The tax case and the cutover

Beyond liability, the corporation buys deferral and cleaner HST. Registering for GST/HST from day one — rather than waiting for the $30,000 small-supplier threshold — lets the company recover the tax on everything it procures for resale, which on furnishing-heavy projects is real money moving both directions. Retained profit taxed at the small business rate then funds the studio's slow months, sample libraries, and the working capital gap between paying vendors and billing clients.

Do the cutover between projects, never mid-install: new bank account, vendor trade accounts moved, agreements re-papered, and the sole proprietorship wound down once the corporation's paper is live. If your projects cross the border — a Florida condo, a US client, state sales tax on installed goods — the added layer lives on our cross-border tax page for interior designers. For the incorporation itself, from articles to registrations to annual filings, see our incorporation and compliance service.