Canadian Auto Calc

Quick Start

• Enter your costs in the Itemized Costs section — each line from your dealer quote.
• Check "Taxable" for items subject to HST/GST. Uncheck for government fees like Tire Recycling or Air Tax.
• Set your adjustments — trade-in value, discount, and down payment.
• Enter your loan terms — interest rate and number of months.
• The Loan Summary and Amortization Schedule update automatically.

Key Definitions

Total Selling Price

The sum of all line items from your dealer quote, before any adjustments.

Adjusted Price

Total Selling Price minus your Trade-In value and Discount. This is the base amount before tax.

Taxable Base

Adjusted Price minus any Non-Taxable Fees (e.g. Tire Recycling, Air Tax). This is the amount HST/GST is calculated on.

Trade-In Value

The amount your dealer is giving you for your current vehicle. In Canada, this reduces the taxable amount before tax is applied.

Discount

Any manufacturer or dealer rebate. Like trade-in, this reduces the taxable base.

Non-Taxable Fees

Government-mandated fees (Tire Recycling, Air Tax, EHC) that are not subject to sales tax.

Prepayment

An extra lump-sum payment applied directly to your loan principal. In this calculator, prepayments keep your monthly payment the same but shorten your loan term — saving you interest.

Amortization Schedule

A month-by-month breakdown showing how each payment is split between principal and interest, and your remaining balance.

Scenarios & Comparison

• Save different quotes (e.g. "Mitsubishi Quote", "Steele Quote") to compare later.
• Load a saved scenario to see its full amortization schedule.
• Compare up to 4 saved scenarios side-by-side on key financial metrics.

Prepayments

Click Prepay on any row in the schedule to add a lump-sum payment. The schedule recalculates immediately, showing how many months you save and how much less interest you pay. Prepayments are applied at the end of that month — your regular monthly payment stays the same, but the loan ends sooner.