Your own name is the default. It costs nothing, it requires no filing, and for a solo practitioner whose clients arrive through referrals and directory profiles it is often the better commercial choice — the name people repeat to a friend is yours, not a brand.

Register a business name when one of these is true:

You want a bank account and invoices in a name other than your own. The most common practical reason, and usually the only one that matters in year one.

You want an identity that survives you. If the plan includes associates, a sale, or simply not being the only clinician forever, a name that isn't a person is worth establishing before there is a client list attached to it.

You want a boundary between the practice and your personal identity online. A name to put on a website, a directory listing and a public phone number that is not the same string as the rest of your life.

Do not register a name because it feels more legitimate. A registered name changes nothing about your credibility with clients or referrers, and it does add a filing you have to maintain.

Four provinces, four sets of paperwork, one shared shape: you register only when the name is not simply yours.

Nova Scotia states it with an example — you need not register if you are "an individual using only your personal name (for example, John Smith does not need to register, but John Smith & Associates needs to register)" (Nova Scotia, Register a sole proprietorship). British Columbia says the same thing: "if you're going to do business under your name, you do not need to request a business name or register the business with the province" (BC, Sole proprietorships and partnerships). Ontario lists who must register — "sole proprietorships (one owner) carrying on business under a name other than the individual's full name" (ServiceOntario, Notice — Business Names Act). Alberta defines a trade name as the one used when "an individual does business under a name other than their own personal name" (Alberta, Register a business name).

The filing is cheap. What differs is how often it comes back:

• Ontario — $60 online, and "a registration is effective for 5 years from the date it is accepted by the Registrar for registration" (Ontario, cost and time required).

• British Columbia — $40 to register plus a $30 name approval, published as "Total $70.00" (BC, Forms, fees and information packages). BC publishes no expiry for a proprietorship registration.

• Nova Scotia — $68.55, and "you need to renew your registration every year" (Nova Scotia, Register a sole proprietorship). Annually, not every five years, so budget it as a subscription.

• Alberta — the government's own fee is $10.61, but that is not what you pay. Alberta registers through private registry agents, and the province's catalogue prints no number for their charge at all: "Maximum Service Charge determined by registry agent" (Registry Agent Product Catalogue). Ask the agent for the total before you start.

Whether your profession restricts what a practice may be called is a separate question, and it belongs to your regulator rather than the registry — a registry will happily accept a name your College would not let you use. Ontario's psychotherapy College, for one, requires that "the name registrants choose for their practice must not make claims that are false or misleading", and gives examples of what fails: "Best Therapy Services", and "M. Jones and Associates Psychotherapists (if there are no associates, the name would not be factual)" (CRPO, Business Practice Information). Ask yours before you file, not after.

What does it cost me to change my mind later?

More than the filing fee, and this is the part worth thinking about now.

A practice name ends up on your directory profiles, your domain, your email address, your receipts, your consent forms, your voicemail greeting, your bank account and everything your accountant has ever filed. Changing it two years in is a project, not an afternoon — and the receipts already issued under the old name have to keep making sense to insurers.

Which argues for one of two clean positions rather than a middle one:

• Use your own name now, and add a practice name later if and when there is something for it to describe.

• Pick a durable name now, one that will still fit if you change city, modality or scope, and use it consistently everywhere from day one.

The expensive path is a name chosen quickly to fill in a form, used on half your surfaces, and abandoned when you eventually pick a real one.

What about incorporating?

A different question entirely, and one for an accountant rather than a colleague. Incorporation is a tax and liability decision that depends on your income, your province and your profession — several regulated professions have specific rules about professional corporations, including what they may be called.

What the rules look like, taking the province that publishes them most fully. Ontario's psychotherapy College states first that "registrants are not required to practise through a professional corporation", and then that if you do incorporate, the corporation itself has to be authorised by the College. The naming rules are specific — it "cannot be a numbered company", and the legal name "must include the words 'Professional Corporation'" and "must indicate the health profession to be practised through the corporation, as well as the surname of one or more of the shareholders". Only registrants may hold shares, and incorporating federally rules you out: "a federal corporation cannot be issued a Certificate of Authorization" (CRPO, Business Practice Information).

And the one that undoes the usual reason for doing it: "registrants cannot avoid professional liability through a professional corporation; injured clients can sue the registrant personally."

Other provinces and other professions set their own rules, so read your own regulator's page rather than assuming Ontario's shape travels — and ask them before you pay an accountant, because their answer decides whether that conversation is worth having.

What is safe to say generally: incorporation is rarely the right first-year move for a solo practice with a small caseload, and the cost of setting it up and maintaining it is real. Get advice on it when your income makes the question interesting, not before.

Does a business name protect my privacy?

Partly, and less than people hope.

It helps at the edges. A practice name gives you a domain, an email address and a public listing that are not your personal name, so a casual search turns up less.

What it does not do is make you hard to find. Therapists who have searched for themselves describe being unsettled by how much is already public — one found their private number and home address on people-search sites, and another noted how little it costs to buy a bundle of personal details on anyone. A business name removes none of that.

The privacy measures that actually move the needle are more boring: a work phone number that isn't your cell, a work email you control, a registered address that isn't your home if your province allows one, and a deliberate look at what already exists under your own name before you publish anything new.

Every one of these registries is a public record, and the address is the part that should give a home-based practitioner pause.

Ontario says registered business names "are placed on the public record for public disclosure", that "anyone may search business name information maintained in the Ministry's records for a fee to find the owners or principals behind a business name", and that the filing must carry "the address of the principal place of business in Ontario" (ServiceOntario, Notice — Business Names Act). Ontario does shield some of it — contact information and the official email address are listed as "not shown on public record" — but the business address is not on that list.

Nova Scotia is blunter: "Information you file with Registry of Joint Stock Companies is available to the public" (Nova Scotia, Register a sole proprietorship), and what a sole proprietorship files includes "the business location, mailing address and residential address of the sole proprietor".

British Columbia is the one to know about before you file, because it closes the obvious workaround. The registration requires a business address that "must be the physical location of the business in B.C., not just a general delivery, post office box, rural route, site, or comp. number", and separately a proprietor address that "must be a residential address if the proprietor is an individual" (BC, Information on Registration of Proprietorship). Copies of that statement are available to the public for a fee. Work from home in BC and register a name, and both addresses are your kitchen.

So "use a registered address that isn't your home" is good advice that is not always available. Where it isn't, the real choice is between not registering a name and accepting that an address is findable — which on its own is a decent reason for a home-based practice to stay under its own name a while longer.

What do I put on receipts either way?

Whatever your regulator publishes about receipts, plus enough for an insurer to process the claim without phoning you. If you practise under a business name, do not let it displace your own name and credential — the client's plan pays a practitioner, not a company. Get it right on the first receipt you issue; reissuing a year of them because a plan administrator rejected the format is one of the more avoidable bad weeks in this work.

The short version

Start with your own name unless you have a specific reason not to. Register a name when you need a bank account in it, an identity that outlasts you, or separation from your personal name online — and if you do, choose one you can still live with after a move and a change of focus, because the cost of changing it is spread across every surface your practice touches.

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