Buying a car in Ontario and bringing it to another province

People move, and cars move with them. Somebody takes a job in Calgary and buys in Toronto first because the selection is better. Somebody in Gatineau shops on the Ontario side. Somebody buying a used car looks at listings four provinces away because the price is worth the drive. In every one of those cases the same question comes up, usually too late: which tax am I actually going to pay?

The short answer is that provincial vehicle tax attaches at registration. That is not an inference; it is what the tax authorities themselves say. Ontario collects its retail sales tax on a private sale through ServiceOntario when you register. Saskatchewan collects through SGI or a motor licence issuer at registration. Quebec is the most explicit of all: retail vendors there are not even authorised to collect the sales tax on a motor vehicle, because the SAAQ collects it when the vehicle is registered.

What every jurisdiction charges

Three things in that table are worth pausing on. Alberta, the Northwest Territories, Nunavut and Yukon levy nothing of their own, so a vehicle there carries the 5 percent federal GST alone. The Atlantic provinces sit at the top at 15 percent. And the private-sale column is not simply the dealer column repeated: several provinces tax a private sale at a different rate, on a different base, or not at all.

That is one identical car and a spread wider than most people budget for the whole purchase. It is also the reason the question is worth asking in the right order: decide where the car will be registered, then look up that rulebook, then shop.

The base is not always the price you paid

A rate on its own will mislead you, because several provinces do not charge it on the number written on the bill of sale.

• Ontario charges its 13 percent on the purchase price or the Canadian Red Book wholesale value, whichever is greater. A cheap deal on a well-booked car is taxed as though you paid book.
• Quebec does the same thing with a different book and a discount: the tax base is the greater of the sale price and the estimated value, defined as the average wholesale price in the Guide d’évaluation Hebdo minus $500. Since January 2025 that rule applies to vehicles fourteen years old or less.
• Saskatchewan uses the greater of the bill of sale and the Canadian Red Book average retail price, with an exemption below $5,000 that only holds if the book value is under $5,000 too.
• The GST-only jurisdictions have no book value to argue with, because they have no provincial or territorial tax on the sale at all.

Each province page linked in the table sets out its own base rule, with the source and the date on it. The Ontario used car tax guide works the greater-of rule through in full, because Ontario is where most of the searches come from and the rule catches the most people.

What we are not going to tell you

If you buy from an Ontario dealer and register the car in Nova Scotia, you have potentially been charged one province’s tax and are about to meet another’s. Whether you get a credit, a refund, or a bill for the difference depends on rules about place of supply and interprovincial reconciliation that we have not sourced to any tax authority. So this page does not describe them.

Two more practical points that do not depend on the tax question at all. A vehicle moving between provinces normally has to pass the receiving province’s own safety inspection before it can be plated, on its schedule and at your cost. And insurance is priced where the car sleeps, not where it was bought: moving a car from Brampton to Halifax changes the premium more than most people expect, in whichever direction. Price both before you commit to the drive.