What the calculator shows
Enter the negotiated vehicle price and the taxable amount from the buyer’s order separately. The calculator adds the selected province’s GST/HST/PST, adjusts for cash down and trade-in credit, then amortizes the financed amount.
Calculation method
Sales tax uses the province selected and the taxable amount entered. Principal equals vehicle price minus cash down and trade-in credit, plus sales tax and financed fees. The entered contract interest rate drives fixed monthly amortization.
Inputs to confirm
Tax treatment of trade-ins, fees, rebates and used vehicles can vary. Use the buyer’s order for the taxable amount and financed fees, and the credit agreement for the contract rate, payment and disclosed borrowing cost.
Worked purchase-order example
With CA$45,000 price, CA$5,000 down, Ontario, CA$45,000 taxable amount and CA$500 financed fees, sales tax is CA$5,850 and amount financed is CA$46,350. At an entered 0% contract rate over 60 months, payment is CA$772.50.
| Change | Modeled effect | Record to check |
|---|---|---|
| Enter contract rate | Adds interest and changes payment | Finance contract |
| Change taxable amount | Changes sales tax and principal | Buyer’s order |
| Pay fees in cash | Reduces financed principal | Buyer’s order |
Use the buyer’s order to build a Canadian auto-loan scenario
Province, taxable amount, trade-in treatment, financed fees and the contract rate all matter before the monthly payment can be trusted.
Province rate and taxable amount are separate inputs
The page applies the selected province’s standard rate to the amount you enter. It cannot infer whether trade-in credit, rebates, used-vehicle rules or a particular fee changes the taxable base.
No rate means no credible payment
The contract-rate field intentionally starts blank. Enter the rate from the financing offer; the calculator then amortizes the financed amount using a monthly approximation.
Compare total transaction cost as well as payment
A longer term can lower the payment while increasing interest and the risk that the balance exceeds vehicle value. Check price, tax, optional products, term, rate, APR and total obligation on the buyer’s order and disclosure.