HJ Wu & Company Inc. (CPA)

Strata Earthquake Deductible Calculator

Understand what an earthquake deductible such as 10% (minimum $100,000) means in dollars, how it is worked out, and what it could mean for your unit.

Nothing is saved Estimates for information only Last reviewed November 5, 2026 Courtesy of HJ Wu & Company Inc. (CPA)

Where to find it on your insurance document: Open your policy’s Summary of Coverages (some call it the Insuring Agreement or Declarations). In the Property section, find the row that starts Earthquake Annual Aggregate. The Deductible column shows the percentage and the minimum, for example 10% (minimum $100,000). The Limit column shows the most the insurer will pay in a year.

What does “10% (minimum $100,000)” mean?

It is the earthquake deductible. A deductible is the part of a claim that the strata pays before the insurer pays anything. For most losses it is a fixed dollar amount, such as $25,000 for water damage. Earthquake is different. A big quake could damage many buildings at once, so insurers set the deductible as a percentage of the insured value. The “minimum” is a floor, so a small building still has a meaningful deductible.

If this, then that: what happens after an earthquake

Read it from the top. Each box is a question or a result.

1. An earthquake damages the building.The strata makes an earthquake claim.
2. Is the damage more than the deductible?Deductible = the percentage of the insured value, or the minimum, whichever is bigger.
NO
The insurer pays $0.The strata pays for all of the repair itself.
YES
The strata pays the deductible.The insurer pays the rest of the damage, up to the earthquake limit.
3. Where does the strata find the money it has to pay?First the contingency reserve fund, if the owners can use it for this. Then a special levy, or a loan.
4. Each owner pays a share by unit entitlement.Your share = your unit entitlement ÷ total unit entitlement × the amount to be raised.
5. Does your own condo insurance have loss assessment coverage for earthquake?It is often missing or has a small limit. Ask your insurer.
YES
Your insurer may pay your share,up to its limit, less your own deductible.
NO, or the limit is too low
You pay the difference yourself.This is the gap the calculator shows.

A diagram like this helps because the real wording is hard to follow. It is simplified: actual claims also depend on the policy wording, other deductibles, the 150% extended replacement cost and the strata’s bylaws.

How to use it: type your numbers in the boxes (the examples are only there to show how it works) and the results update right away. Nothing is sent to us. Use Save my numbers to keep a copy on your own computer.

The other earthquake lines, in one place

See our guide to every line of a strata insurance summary for the rest.

What this tool does and does not include

Good to know

Strata help in BC

Links open other websites. Programs change, so check each one is current.

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Want advice for your own situation?

This free tool is a courtesy of HJ Wu & Company Inc. (CPA), a Vancouver CPA firm offering accounting, tax, financial reporting and review assurance. Feedback on the calculators is welcome.

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