$500 or $1,000 car insurance deductible? The break-even arithmetic explained
How to choose between a $500 and $1,000 collision or comprehensive deductible in Canada, using the premium saving, your claim frequency and your emergency savings.
A higher deductible is worth it when the premium you save each year is larger than the extra deductible multiplied by your chance of claiming. Divide the annual saving by the extra deductible: if moving from $500 to $1,000 saves $90 a year, the break-even is $90 / $500 = 18%, so the higher deductible wins unless you expect a claim more often than about once every five and a half years. The second test is practical: choose a deductible you could pay tomorrow without borrowing.
This guide works through collision and comprehensive deductibles with illustrative numbers and points out the Canadian situations where the deductible does not apply at all.
What a deductible is, and when it applies
The deductible is the part of a covered loss you pay before the insurer pays the rest. In Canada it applies to coverages for your own vehicle: collision, comprehensive, all perils, specified perils, and the own-damage part of the public basic plans. It does not apply to third-party liability or accident benefits.
| Situation | Deductible applies? |
|---|---|
| You cause a collision (collision coverage) | Yes |
| Ontario, not-at-fault collision with an identified insured vehicle (DCPD) | No, if you are 0% at fault; partial fault reduces the payout |
| Quebec, not-at-fault collision under the direct compensation agreement | No |
| Theft, vandalism, fire, hail (comprehensive) | Yes, comprehensive deductible |
| Windshield repair (chip) | Often waived or lower; check your policy |
| BC, Saskatchewan, Manitoba basic own-damage coverage | Yes, the basic deductible unless reduced by optional or extension coverage |
The break-even formula
Break-even claim frequency = annual premium saving / extra deductible.
- If your realistic chance of a claim per year is below the break-even, the higher deductible saves money on average.
- If it is above, the lower deductible is better value.
Your chance of claiming is not just your chance of a crash; it is your chance of a crash that you would claim. Many drivers pay small repairs themselves to protect their claims record, which makes a low deductible less valuable.
Worked example: collision deductible (illustrative)
An Edmonton driver's quote:
- Collision $500 deductible: $840 a year for the collision portion
- Collision $1,000 deductible: $750 a year
Saving: $840 - $750 = $90 a year. Extra deductible per claim: $1,000 - $500 = $500.
Break-even: $90 / $500 = 0.18, or one claim every 5.6 years (1 / 0.18).
Scenarios over five years:
- No claims: the $1,000 deductible saves 5 x $90 = $450.
- One claim in five years: saves $450 - $500 = -$50 (the $500 deductible would have been $50 better).
- Two claims: $450 - $1,000 = -$550.
If this driver has had no at-fault claims in ten years, the $1,000 deductible is a reasonable bet. A newly licensed driver might choose differently.
Worked example: comprehensive deductible (illustrative)
Comprehensive claims (theft, glass, hail, animals) can be more frequent than at-fault collisions in some areas.
- Comprehensive $300 deductible: $260 a year
- Comprehensive $1,000 deductible: $190 a year
Saving $70 a year; extra deductible $700; break-even $70 / $700 = 10%, or one claim every ten years. In a hail-prone area of the Prairies, or where catalytic converter and vehicle theft are common, many drivers will exceed one claim in ten years, so the lower comprehensive deductible may be worth keeping even if they raise the collision deductible.
The second test: can you pay it?
| Your situation | Suggested approach |
|---|---|
| Emergency savings well above $1,000 | Higher deductibles usually save money |
| Savings tight, car needed for work | Lower deductible, or keep a dedicated repair fund |
| Car on loan or lease | Check the maximum deductible your lender allows |
| Older car with low value | Consider whether to keep collision at all; see liability and coverage choices |
Don't forget the claim surcharge
An at-fault claim usually raises your premium or lowers your discount for several years, whatever the deductible. If a repair is only slightly above your deductible, you may not claim at all. That makes the extra protection of a low deductible worth less than the arithmetic suggests. See how at-fault claims affect your premium for a worked "claim or pay yourself" example.
Use the quote comparison tool to compare the same policy with two deductibles: enter each version as a separate quote and change the repair cost.
Frequently asked questions
Is there one deductible for everything?
No. Collision and comprehensive usually have separate deductibles, and some policies have a separate glass deductible. All perils coverage has a single deductible.
Can I change my deductible mid-term?
Usually yes, with a premium adjustment from the date of the change. It does not apply to a loss that has already happened.
Does a higher deductible lower my liability premium?
No. Deductibles apply to own-vehicle coverages. Liability and accident benefit premiums are not affected.
Do I pay the deductible if someone hits me?
In Ontario, for a not-at-fault collision with an identified insured vehicle, DCPD pays without a deductible. In Quebec the direct compensation agreement works similarly. In a hit-and-run with an unidentified driver, your collision deductible may apply; check your province's rules and your policy.
More guides
Sources
- FSRA — DCPD and deductibles in Ontario
- Insurance Bureau of Canada — how deductibles work
- Autorité des marchés financiers — Quebec consumer guides on auto insurance
