Key Takeaways
- Automatically cedes all qualifying risks to reinsurer.
- Reinsurer must accept risks without individual underwriting.
- Common types: proportional (quota share) and non-proportional.
- Provides predictable risk transfer and capital relief.
What is Obligatory Reinsurance?
Obligatory reinsurance, also called treaty reinsurance, is a contractual arrangement where an insurer automatically cedes all risks meeting agreed criteria to a reinsurer. The reinsurer is obligated to accept these risks without individual underwriting, providing predictable risk transfer.
This contrasts with facultative reinsurance, where risks are ceded selectively and negotiated case-by-case.
Key Characteristics
Obligatory reinsurance has distinct features that differentiate it within the insurance industry:
- Automatic coverage: The insurer cedes all qualifying policies as per the treaty terms.
- Predefined criteria: Risks are usually grouped by type, territory, or portfolio, ensuring consistency.
- Mandatory acceptance: The reinsurer must accept all risks meeting the treaty conditions, creating a binding partnership between parties.
- Types of treaties: Includes proportional (sharing premiums and losses) and non-proportional (covering losses above a threshold) agreements.
- Annual renewal: Treaties typically cover a calendar year and are renegotiated or renewed annually.
How It Works
In an obligatory reinsurance treaty, you as the insurer cede an entire portfolio of qualifying risks to the reinsurer automatically. You retain underwriting authority but transfer specified risks and associated premiums and losses according to the treaty’s terms.
For example, under a quota share treaty, if you cede 40% of your policies to a reinsurer, you pass along 40% of the premiums and losses. This setup frees capital and stabilizes your financial position without the need to negotiate each risk individually. The reinsurer benefits by gaining steady business volume without underwriting each policy.
Examples and Use Cases
Obligatory reinsurance is widely used across various sectors to manage risk efficiently:
- Property and casualty insurers: Use treaty reinsurance to protect against large-scale losses and support underwriting growth.
- Airlines: Companies like Delta employ reinsurance strategies to manage risks linked to fleet operations and liabilities.
- Portfolio management: Insurers may combine obligatory treaties with facultative methods for flexible risk transfer.
- Investment allocation: Capital freed by treaty reinsurance can be directed toward diversified holdings such as large-cap stocks or bond ETFs to optimize returns.
Important Considerations
While obligatory reinsurance offers predictable risk transfer and capital efficiency, it requires careful treaty negotiation to balance benefits and risks. You must understand the potential for adverse selection since the reinsurer accepts all qualifying risks without individual review.
Strong underwriting discipline by the cedent is essential to maintain treaty profitability. Additionally, obligations can limit flexibility as you must cede all risks meeting treaty criteria, including less profitable ones. Awareness of these factors helps optimize your reinsurance strategy and financial stability.
Final Words
Obligatory reinsurance ensures consistent risk transfer for qualifying policies, helping insurers manage capital and reinsurers secure steady business. Review your current treaty terms to confirm they align with your risk appetite and financial goals.
Frequently Asked Questions
Obligatory reinsurance, also called treaty reinsurance, is a contract where an insurer automatically cedes all risks meeting set criteria to a reinsurer, who must accept them without individual underwriting. This ensures continuous risk transfer for qualifying policies during the treaty period.
Unlike facultative reinsurance, which involves case-by-case negotiation for each risk, obligatory reinsurance requires the reinsurer to accept all qualifying risks automatically under the treaty. This provides predictable risk sharing and volume business for the reinsurer.
The two primary types are proportional (or pro rata), where premiums and losses are shared in a fixed percentage, and non-proportional, where the reinsurer covers losses exceeding a specific threshold. Each type serves different risk-sharing needs.
Insurers use obligatory reinsurance to transfer risks predictably, freeing capital to grow their business or enter new markets. It also helps manage large portfolios efficiently by automatically sharing risks with reinsurers.
No, under an obligatory reinsurance treaty, the reinsurer is contractually obligated to accept all risks that meet the treaty's criteria. However, gross negligence or intentional harm by the insurer can relieve the reinsurer from this obligation.
A quota share treaty is a proportional obligatory reinsurance agreement where the insurer cedes a fixed percentage of premiums and losses to the reinsurer. For example, ceding 40% of all motor policies means the reinsurer covers 40% of claims and receives 40% of premiums.
These treaties are typically negotiated annually and run for a calendar year, often starting January 1. They cover all qualifying risks written or losses occurring during that period, depending on the treaty terms.


