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Canadian catastrophe losses hit $8.5 billion in 2024. That’s nearly 12 times the average loss from 2001 to 2010. No single insurer can absorb losses like that alone. That’s where reinsurance insurance steps in.
What is reinsurance? Simply put, it’s insurance for insurance companies. Let’s dive into what reinsurance means, how it protects your insurer when disaster strikes, and why it matters to your home insurance coverage and costs.
Reinsurance is a contract in which your insurer transfers part of its risk to another insurance company, called a reinsurer. The reinsurer receives a share of premiums your insurer collects. In exchange, the reinsurer reimburses your insurer for a defined share of claims.
You never interact with reinsurers. You buy from your insurer, file claims with that insurer, and get paid by that insurer. Reinsurance happens entirely behind the scenes. Your policy wording doesn’t change. Your claims process stays the same.
What does reinsurance mean for the system? It lets insurers spread catastrophic risk across the global market. Without that backstop, several insurers might have failed during major catastrophic events.
Insurers face three major problems that reinsurance insurance solves. Catastrophes keep getting bigger. Capital requirements keep getting tighter. Regulators demand proof insurers can survive worst-case scenarios.
Severe weather in 2023 caused $3.1 billion in insured damage across Canada. The year before hit $3.4 billion. Single events now regularly top $1 billion.
Insurers can’t hold enough capital to absorb all that loss alone. Reinsurance insurance spreads extreme events across hundreds of global reinsurers and capital market investors.
The 1998 ice storm generated $2.5 billion in insured claims measured in 2022 dollars. Primary insurers kept the first layer of losses, then reinsurance kicked in.
That pattern repeats across major events. Summer 2024 disasters in Toronto, Jasper, Calgary and Montreal pushed claims higher. Reinsurers covered about half of those losses.
Reinsurers covered roughly 50% of those losses. The share has dropped from 60% a few years ago because reinsurers pulled back coverage after global losses spiked.
Federal and provincial regulators in Ontario, Quebec and British Columbia require insurers to prove annually they have enough reinsurance, capital and financial capacity to survive very large earthquakes plus multiple severe climate events in the same year.
OSFI’s capital rules give insurers credit for risk transferred to strong reinsurers. That means insurers with solid reinsurance programs can deploy capital more efficiently while maintaining policyholder protection.
Your home insurer collects premiums from thousands of homeowners. It keeps some exposure and cedes a portion to reinsurers through contracts called treaties or facultative agreements.
In a typical flow, your insurer might collect $1,000 in premiums from your policy. It pays perhaps $300 to reinsurers under various treaties. When you file a $20,000 claim for hail damage, your insurer pays you the full $20,000. Later, the insurer recovers part of that from its reinsurers based on treaty terms.
Reinsurers can themselves buy reinsurance from other reinsurers in a process called retrocession. This spreads risk even further across global markets. All of this happens between insurance companies. You only ever deal with your primary insurer.
Canadian insurers use standard global structures. The main split is between standing agreements covering entire portfolios versus case-by-case deals for specific large risks.
Treaty reinsurance covers a defined category of policies automatically. For example, a treaty might cover all personal property policies up to certain limits. It’s efficient for large books of business.
Facultative reinsurance works case by case for unusual or high-value risks like critical infrastructure or high-rise condos. It’s more expensive because reinsurers underwrite each risk individually.
Within those categories, two more structures matter. Proportional reinsurance means the reinsurer takes a fixed percentage of every policy, receives that share of premium, and pays that share of claims. Non-proportional reinsurance only responds when losses exceed a threshold. An insurer might keep the first $50 million of catastrophe losses, with reinsurers covering the next $500 million.
Reinsurance insurance delivers three core benefits that keep the system stable even when disasters spike.
OSFI calls reinsurance an important risk management tool that reduces volatility and helps insurers withstand catastrophic events. Insurers can write policies in high-risk zones knowing global reinsurers will absorb extreme losses.
This matters most for secondary perils like wildfire, hail, and overland flood. These risks now drive most insured losses in Canada but are harder to model precisely. Reinsurers bring global data and catastrophe modelling expertise that helps smaller Canadian insurers price and manage those exposures.
Reinsurance increases underwriting capacity by letting insurers write larger individual risks and more total volume without tying up capital.
A mid-sized insurer might have $200 million in surplus capital. Without reinsurance, it can safely write perhaps $600 million in annual premiums. With strong reinsurance treaties, it might write $1.2 billion because catastrophic tail risk sits with reinsurers. That extra capacity means more competitive pricing and broader coverage availability for consumers.
Appropriate catastrophe financing through reinsurance has allowed Canadian insurers to pay even record-breaking losses without jeopardizing solvency.
When multiple billion-dollar events hit in the same year, reinsurers absorb the bulk of claims above insurer retention levels. That protects policyholders from insurer failures. PACICC, the industry’s insolvency backstop, can levy up to 1.5% of direct written premiums if needed, collecting roughly $1.31 billion to cover failed insurer claims. Strong reinsurance reduces how often PACICC must step in.
Reinsurance isn’t a perfect solution. OSFI warns that weak practices expose insurers to operational, legal, counterparty, and liquidity risks.
Reinsurers can fail or dispute claims. After Hurricane Katrina, some reinsurers argued about whether the damage came from wind or excluded flood. Canadian insurers must maintain lists of approved reinsurers and monitor counterparty credit ratings.
Coverage costs spiked recently. After global catastrophe losses in 2022-2023, reinsurance premiums jumped 25-30% for portfolios without major claims and 50-70% for insurers with significant losses. Reinsurers also narrowed their focus to peak perils like hurricanes and earthquakes, pulling back from secondary perils that drive most Canadian losses.
Reinsurers might withdraw capacity from certain regions or perils. When that happens, primary insurers either retain more risk themselves or reduce coverage availability to homeowners in affected areas.
You don’t buy reinsurance directly, but it influences what coverage your insurer offers and what you pay.
Growing catastrophe losses are driving up reinsurance costs, putting pressure on high-risk property markets. Insurers pass those higher wholesale costs to consumers through premium increases, tighter underwriting, higher deductibles, or more limited sub-limits for water, wildfire, and hail.
Regional impacts vary by exposure. BC and Quebec face expensive earthquake reinsurance requirements that influence pricing and availability of optional earthquake endorsements. Alberta’s history of major hail events makes wind and hail layers costly, explaining why Calgary homeowners often see higher premiums and deductibles for those perils. Ontario and Quebec river systems face re-priced flood and windstorm layers after events like the 2022 derecho.
Canadian reinsurance revenue totalled $4.7 billion in 2024, up from $3.4 billion in 2022. Ontario accounts for 45.7% of that, British Columbia 15.7%, Alberta 11.2%, and Quebec 10.9%. Those figures track where property values and catastrophe exposure are highest.
Your claim still gets paid by your insurer according to your policy, even in mega-events. Reinsurance plus PACICC’s safety net reduces the risk that your insurer fails. In extreme systemic scenarios exceeding private capacity, governments may need to step in. The federal government is developing a national flood program with government-backed reinsurance for high-risk residential flood, and industry groups have proposed a public backstop for major urban earthquakes.
Reinsurance has become a quiet but essential shock absorber in a system now dealing with record-breaking Canadian catastrophe losses, tighter capital rules, and more volatile climate risks. By spreading extreme events across global balance sheets, it allows local insurers to keep offering coverage, paying claims, and staying solvent even when annual losses reach many multiples of historic averages.
For homeowners, that behind-the-scenes protection shows up in the availability of coverage and the stability of the claims process, even as rising reinsurance costs increasingly flow through into higher premiums, higher deductibles, and more fine-tuned limits in the places most exposed to severe weather and earthquakes.
Reach out to Insurely for more information on how reinsurance works and how it can help with your own premiums.
Reinsurance is insurance that insurance companies buy to protect themselves from large losses. Your insurer transfers part of its risk to a reinsurer. The reinsurer receives premiums and pays claims above agreed thresholds or percentages.
Reinsurance meaning in insurance refers to contracts where insurers cede risk to other insurers or capital market investors. It’s how the industry spreads catastrophic risk globally and maintains financial stability during billion-dollar disaster years.
Insurers use reinsurance insurance to manage catastrophic risk, protect capital, meet regulatory solvency requirements, and increase underwriting capacity. Without it, most insurers couldn’t afford to cover wildfire, flood, earthquake, and major storm risks.
Treaty reinsurance covers portfolios automatically. Facultative reinsurance covers individual risks on a case-by-case basis. Proportional reinsurance shares premiums and claims by percentage. Non-proportional reinsurance only responds when losses exceed retention levels.
Not directly. You claim against your insurer, which handles recovery from reinsurers separately. Indirectly, reinsurance costs influence your premiums, coverage availability, and deductibles, especially in high-risk zones for flood, wildfire, hail, and earthquake.
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