Estimate what paying your car insurance in monthly instalments adds compared with paying the annual premium up front.
Most Canadian insurers let you pay a private-market policy in monthly pre-authorized debits. Many add an interest or service charge for doing so; some do not. Public insurers have their own plans: ICBC, SGI and MPI each offer monthly or instalment options for their coverage with their own terms. This calculator shows roughly what spreading the premium costs.
How to use it. Enter the annual premium you would otherwise pay in one go, minus any up-front payment. Enter the yearly interest or service charge rate disclosed in your payment plan, keep the length at 1 year for a standard 12-month policy, and enter any up-front payment or one-time plan fee so the total includes it.
Formula. The instalment uses the standard repayment formula: payment = P x r / (1 - (1 + r)^-n), where P is the amount spread, r is the yearly rate divided by 12 and n is the number of months.
Worked example (illustrative). A $2,400 premium spread over 12 months at 5% a year gives an instalment of about $205.46, or $2,465.50 in total: about $65.50 more than paying up front. At 0% the instalment would be exactly $200.
Limits. Some insurers charge a flat fee per instalment or a percentage added to the premium instead of interest; convert it to a total and compare. Six-month policies need a length of 0.5 years. A returned payment can lead to a notice of cancellation for non-payment, which leaves you uninsured once it takes effect. Check the total payable figure in your own plan documents.
Mistakes, Disputes & Official Sources
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Worked Quotes & Checklists
How monthly car insurance payment plans work in Canada, how to turn a service charge or interest rate into dollars, and what happens if a payment is missed.
