Reinsurer: Definition, Types, Top Companies, Vs. Primary Insurer (2024)

What Is a Reinsurer?

The term reinsurer refers to a company that provides financial protection to insurance companies. Reinsurers handle risks that are too large for insurance companies to handle on their own and make it possible for insurers to obtain more business than they would otherwise be able to. Reinsurers also make it possible for primary insurers to keep less capital on hand needed to cover potential losses.

Key Takeaways

  • A reinsurer provides insurance to insurance companies.
  • The risks of an insurance company are spread out by purchasing insurance from reinsurers.
  • Doing business with a reinsurer allows an insurance company to do more business itself by being able to take on more risk than its balance sheet would otherwise allow.
  • Insurance companies pay reinsurers premiums in the same manner that individuals pay insurance companies premiums.
  • Reinsurance companies can also buy reinsurance themselves.

Understanding a Reinsurer

A primary insurer is the insurance company from whichan individual or business purchases a policy. This entity transfers risk to a reinsurer through a process called cession. Just as insurance policyholders pay premiums to insurance companies, insurance companies pay premiums to reinsurers. The price of reinsurance, like the price of insurance, depends on the amount of risk.

Reinsurers help spread out the risk of insuring natural disasters like earthquakes and hurricanes. Such an event could result in more claims than a primary insurer could pay out without going bankrupt. That's because there would not only be a high dollar amount of claims, but they would all be made in the same time period.

By transferring part of the risk of insuring (and thus, part of the premiums) against these events to several reinsurers, individuals and businesses can purchase insurance for these perils. This allows insurance companies to stay solvent. Historically, there have been many instances where a number of insurance companies went under after a catastrophe because they were not solvent enough to pay out the insurance on their policies. Complex reinsurance contracts might include cut-through clauses to trigger in case of insolvency or other events.

Some of the main reasons that an insurance company would purchase reinsurance include:

  • Growing its business
  • Bringing stability to the underwritten policies
  • Raising capital via financing
  • Seeking catastrophe protection
  • Divesting from a specific type of insurance business
  • Gaining expertise,
  • Distributing risk

Reinsurers often add Re in their names, as is the case for Munich Re, Allianz Re, General Re, Swiss Re, and others.

Special Considerations

Reinsurance is a large business and most consumers aren't really aware of this part of the insurance industry. The following table is a list of the top 10 reinsurance companies, according to rating agency A.M. Best.

Top 10 Reinsurers (values in millions)
Gross Life & Non-Life Premiums WrittenNet Life & Non-Life Premiums WrittenGross Non-Life Only Premiums WrittenNet Non-Life Only Premiums Written
Munich Re$45,846$43,096$30,237$29,011
Swiss Re$36,579$34,293$21,512$20,636
Hannover Rück SE$30,421$26,232$20,568$17,449
SCOR S.E.$20,106$17,910$8,795$7,695
Berkshire Hathaway$19,195$19,195$13,333$13,333
China Reinsurance Group$16,665$15,453$6,422$6,020
Lloyd's$16,511$12,213$16,511$12,213
Canada Life Re$14,552$14,497N/AN/A
Reinsurance Group of America$12,583$11,694N/AN/A
Korean Reinsurance$7,777$5,432$6,427$4,229

Setting Up Reinsurance

The reinsurance transaction is not a simple one, as there are many factors to consider in selecting a reinsurer. For instance, therating agencies don’t treat all reinsurers the same because their capital models vary based on the financial strength ratings of the reinsurer.

Best practices for buying reinsuranceshould include a risk charge based on the reinsurer’s credit quality, mortality risk exposure, and the ceding company’s concentration of risk reinsured to the reinsurer.

Many policies are spread amongst multiple reinsurers. In this case, the transaction would involve a lead reinsurer that would negotiate the terms of the policy that other reinsurers would participate in. The lead reinsurer would set the terms and any modifications after signing, but they do not have to take on the largest portion of the risk. The other reinsurers are known as followers.

Reinsurance companies often buy reinsurance themselves, a term known as retrocession.

Types of Reinsurance Offered by Reinsurers

There are two main types of policies that fall under the reinsurance umbrella:

  • Facultative Reinsurance: This insurance is used when a single insurance contract is so large that it requires its own reinsurance, such as a large life insurance policy for an extremely wealthy individual. As such, the reinsurer is responsible for underwriting the individual risk involved. This type of reinsurance allows the reinsurer to reject all or parts of the policy that they take on.
  • Treaty Reinsurance: Treaty reinsurance, which is also called obligatory insurance, is used when one reinsurance contract can cover a large pool of similar risks. Unlike facultative reinsurance, this type of coverage ensures that the reinsurer takes on everything automatically rather than being able to reject portions of the policy until both parties terminate the agreement.

Both facultative and treaty reinsurance are broken down into two different policy structures. These categories are proportional and non-proportional. Under proportional reinsurance, both the primary insurer and the reinsurer agree to share a proportional share of premiums and risks. Non-proportional reinsurance, on the other hand, allows the reinsurer to cover losses based on their size.

What Is Reinsurance?

Reinsurance is one part of the insurance industry. It involves one or more insurance companies that assume the risk portfolio of another insurer. Put simply, reinsurance is the process where one insurance company spreads the risk to other insurers (called reinsurers) who purchase policies. Sharing the risk allows insurance companies to remain solvent in the event of (catastrophic) events that may result in multiple claims that require excessive payouts.

What Are the Top Three Reinsurers in the World?

The top three reinsurers in the world are Munich Re, Swiss Re, and Hannover Ruck SE.

What Is Facultative Reinsurance?

Facultative reinsurance is a form of insurance wherein the reinsurer is able to cover all or certain risks outlined in an insurance contract. Any additional risks must be renegotiated by all parties involved.

How Does Treaty Reinsurance Work?

Treaty insurance is one of the two main types of reinsurance. Under this type of policy, the reinsurer accepts all of the risks outlined by the insurance contract automatically until the agreement is terminated. This is contrary to facultative reinsurance, wherein the reinsurer has the right to reject or accept any or all of the risks outlined in the contract.

Article Sources

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  1. Munich Re. "Basics of Reinsurance," Page 4.

  2. Munich Re. "Basics of Reinsurance," Pages 11-13.

  3. Munich Re. "Basics of Reinsurance," Page 9.

  4. A.M. Best. "Top 50 World's Largest Reinsurance Groups - 2021 Edition."

  5. The Preferred Group. "Glossary of Reinsurance Terms," Page 17.

  6. Munich Re. "Basics of Reinsurance," Page 6.

  7. Insurance Information Institute. "Reinsurance."

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Reinsurer: Definition, Types, Top Companies, Vs. Primary Insurer (2024)

FAQs

What is the difference between primary insurer and reinsurer? ›

The company that issues the policy initially is known as the primary insurer. The company that assumes liability from the primary insurer is known as the reinsurer. Primary companies are said to “cede” business to a reinsurer.

What are the different types of reinsurers? ›

Types of reinsurance include facultative, proportional, and non-proportional.

What is the meaning of reinsurer? ›

Definition of 'reinsurer'

A reinsurer is an insurance company that insures the risks of other insurance companies. A cedant is an insurer who transfers all or part of a risk to a reinsurer. The reinsurer covers all the insurance policies coming within the scope of the reinsurance contract.

What is the difference between the roles of the insurer and the reinsurer? ›

In the case of insurance, the insured transfers risk arising from unforeseen events to the insurer in exchange for premium payment. On the other hand, reinsurance involves transferring the risk of one insurance company to another in exchange for premiums paid at regular intervals.

What is a primary insurer? ›

A primary insurer is the insurance company from which an individual or business purchases a policy. This entity transfers risk to a reinsurer through a process called cession. Just as insurance policyholders pay premiums to insurance companies, insurance companies pay premiums to reinsurers.

Who is considered primary insured? ›

Primary insurance is a health insurance plan that covers a person as an employee, subscriber, or member. Primary insurance is billed first when you receive health care. For example, health insurance you receive through your employer is typically your primary insurance.

Who is the biggest reinsurer? ›

Munich Re

What are the two main types of reinsurance? ›

Facultative reinsurance and reinsurance treaties are two types of reinsurance contracts. When it comes to facultative reinsurance, the main insurer covers one risk or a series of risks held in its own books. Treaty reinsurance, on the other hand, is insurance purchased by an insurer from another company.

Which company is a reinsurer? ›

List of Insurers and Reinsurers
List of Insurance & Reinsurance companies in India
Sr. No.Insurer Detail
1Munchener Ruckversicherungs-Gesellschaft Aktiengesellschaft – India Branch (Munich Re- India Branch)
2Swiss Reinsurance Company Ltd, India Branch
3SCOR SE – India Branch
70 more rows

How do reinsurers make money? ›

Reinsurers play a major role for insurance companies as they allow the latter to help transfer risk, reduce capital requirements, and lower claimant payouts. Reinsurers generate revenue by identifying and accepting policies that they believe are less risky and reinvesting the insurance premiums they receive.

What is reinsurance for dummies? ›

Reinsurance occurs when multiple insurance companies share risk by purchasing insurance policies from other insurers to limit their own total loss in case of disaster. By spreading risk, an insurance company takes on clients whose coverage would be too great of a burden for the single insurance company to handle alone.

How to explain reinsurance? ›

Issue: Reinsurance, often referred to as “insurance for insurance companies,” is a contract between a reinsurer and an insurer. In this contract, the insurance company—the cedent—transfers risk to the reinsurance company, and the latter assumes all or part of one or more insurance policies issued by the cedent.

Who is the client of a reinsurer? ›

Reinsurers deal therefore with professional corporate counterparties, such as primary insurers, reinsurance brokers or multinational corporations and their own insurance companies, so-called captive insurers. The party transferring the risk, for example a primary insurer, is known as a cedant.

What are the two primary duties of an insurer? ›

California law imposes a duty of good faith and fair dealing on insurers. This duty requires insurers to act in a fair, honest, and reasonable manner when handling claims. Insurers must not intentionally or unreasonably delay or deny valid claims.

What is the risk of reinsurance? ›

Definition: Reinsurance risk refers to the inability of the ceding company or the primary insurer to obtain insurance from a reinsurer at the right time and at an appropriate cost. The inability may emanate from a variety of reasons like unfavourable market conditions, etc.

Which are the two primary types of insurers? ›

Insurers can be grouped into two main types: Private and Government. Private insurers offer insurance to people through the individual market. Government insurance redistributes incomes to help people afford costs associated with fundamental risks.

Why do primary insurers buy reinsurance? ›

The insurance company turns around and buys reinsurance to help reduce its risk of loss from the risks it has assumed under its policies issued to its policyholders. That allows the insurance company to stay economically viable while at the same time allowing each of its policyholders to conduct their businesses.

What is the difference between primary insured and named insured? ›

The named insured is the person or entity who owns the policy, and whose name appears on the first page of the policy. They may also be referred to as the policyholder or the primary insured. The named insured owns the policy and is entitled to all of the coverage provided by the policy.

Does it matter which insurance is primary or secondary? ›

Your primary plan initially picks up coverage costs, followed by the secondary plan. You might still owe out-of-pocket costs at the end. Health plans have coordination of benefits, which is a process that decides which plan is primary and which one pays second.

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