Risk Management in Banking and Insurance · Structure and Type of Re-insurance

Facultative and Treaty Reinsurance: Differences and Uses

Updated 11 October 2026 · Fact-checked

Facultative reinsurance is placed risk by risk: the insurer offers each risk and the reinsurer may accept or decline it. Treaty reinsurance is an automatic arrangement covering a whole class of business under agreed terms. Facultative obligatory mixes the two: the insurer chooses what to cede, but the reinsurer must accept. Compare them on choice, speed, cost and control.

Understand Facultative and Treaty Reinsurance

Reinsurance is insurance for insurers. An insurer (the cedant) passes part of its risk to a reinsurer in return for a share of the premium. The big question is how the risks get passed on. There are three placement methods.

Facultative reinsurance is placement one risk at a time. The insurer sends the details of a single large or unusual risk, for example a refinery or a power plant. The reinsurer studies it and is free to accept, reject or change the terms. Each placement is negotiated separately, so it takes time and effort. The advantage is that the cedant can buy cover for exactly the risk it needs and the reinsurer prices each risk on its own merits.

Treaty reinsurance is an agreement made in advance. It covers a defined class or portfolio, such as all fire policies written in a year, on agreed terms. Once the treaty is in force, every risk that falls within it is ceded automatically. The reinsurer does not see or approve each risk, and the cedant is bound to cede, and the reinsurer bound to accept, risks within the terms. This saves time and cost and gives certainty of capacity. The limit is that the reinsurer relies on the cedant's underwriting, so it sets limits and exclusions, and treaty cover usually cannot absorb very large or unusual risks.

Facultative obligatory (often called fac-oblig) sits in between. The cedant may choose whether to cede a given risk, but if it does cede it within the agreed terms, the reinsurer must accept. The cedant keeps flexibility and the reinsurer gets a steady flow of business. Many insurers use treaties for the bulk of the portfolio and facultative placements for risks that exceed treaty limits.

The Insurance Act, 1938 also gives the regulator oversight of reinsurance contracts. Under section 34F, the Authority can require changes to the terms of a reinsurance treaty or contract at its next renewal, or require that it is not renewed, if it considers the terms not favourable to the insurer or detrimental to the public interest. It can also direct that an insurer may not enter such a contract unless a copy has been furnished in advance and the terms approved. Failure to comply with such an order is treated as failure to comply with the Act.

Key rules to remember

Facultative reinsurance: Placement: risk by risk | Reinsurer: free to accept or decline | Cedant: free to offer or not; Negotiated for each risk. Best for large, unusual or out-of-treaty risks.
Treaty reinsurance: Placement: class or portfolio, automatic | Cedant: bound to cede | Reinsurer: bound to accept within terms; Agreed in advance for a period, usually renewed. Both sides are obligated within the treaty terms.
Facultative obligatory: Cedant: option to cede | Reinsurer: obligation to accept; The obligation sits only on the reinsurer. This is the one-sided feature to remember.
Section 34F, Insurance Act, 1938: Authority may require modification or non-renewal of a reinsurance treaty or contract, or require prior approval of its terms; Applies where terms are not favourable to the insurer or are detrimental to the public interest. Non-compliance is deemed failure to comply with the Act.

How to solve Facultative and Treaty Reinsurance questions

Use this method for any question that asks you to compare, choose or apply a reinsurance placement method.

1Identify the cedant, the risk and its size, and whether the facts describe one risk or a whole class of business.
2State who has the choice at each stage: does the cedant choose to cede, and does the reinsurer choose to accept?
3Match the facts to the method: both free means facultative, both bound means treaty, cedant free but reinsurer bound means facultative obligatory.
4List advantages and limits of the chosen method in terms of speed, cost, certainty of capacity, underwriting control and administration.
5Check whether the risk exceeds treaty limits or is excluded from the treaty. If so, a facultative placement or fac-oblig is usually needed.
6Add the regulatory point if relevant: section 34F lets the Authority order changes to, or non-renewal of, unfavourable reinsurance contracts.
7Close with a clear recommendation or conclusion in one line.

Quickest way: Obligation test: who is bound?

When to use it: Use for MCQs that ask you to identify the type of reinsurance from a short description.

Ask: can the reinsurer refuse? If yes, it is facultative.
If the reinsurer cannot refuse and the cedant cannot skip, it is treaty.
If the reinsurer cannot refuse but the cedant can choose, it is facultative obligatory.
Look for key words: 'each risk separately' means facultative, 'automatically' means treaty, 'option' with 'must accept' means fac-oblig.

Common mistakes in Facultative and Treaty Reinsurance

Saying treaty reinsurance means the reinsurer approves each risk.
Students confuse it with facultative placement.
Fix: In a treaty, risks within its terms are ceded automatically. The reinsurer relies on the cedant's underwriting.
Describing facultative obligatory as binding on both parties.
The name sounds like 'obligatory for all'.
Fix: Only the reinsurer is bound. The cedant keeps the option to cede or not.
Listing only advantages of treaty cover.
Students remember convenience and forget the limits.
Fix: Add limits: less reinsurer scrutiny of each risk, exclusions, capacity caps, and unsuitability for very large or unusual risks.
Saying facultative reinsurance is always costlier in premium.
It is slower and more effort, so students assume higher price.
Fix: Say it has higher administrative effort and time. Do not claim a fixed premium difference unless the question gives figures.
Ignoring the regulatory angle when the question mentions the Insurance Act.
Students treat reinsurance as purely commercial.
Fix: Mention that under section 34F the Authority can require modification, non-renewal or prior approval of reinsurance contracts with unfavourable terms.

Worked examples

Example 1

An Indian general insurer has a fire treaty with a limit per risk. It is offered a new risk, a large manufacturing plant, whose sum insured is well above that limit. It wants to accept the business. Which reinsurance method should it use for the excess, and why? Give one advantage and one limit of that method.

Show the solution

The risk exceeds the treaty limit, so the treaty cannot absorb the excess automatically.
The insurer needs cover for this single risk, so it should place the excess facultatively, or under a facultative obligatory arrangement if one exists.
In a facultative placement, it sends the details of the plant to prospective reinsurers, who may accept, decline or change terms.
Advantage: cover is tailored to this exact risk and extra capacity is obtained.
Limit: negotiation takes time and effort, and reinsurers are free to decline.

Answer: Place the excess over the treaty limit facultatively. Advantage: tailored capacity for a large risk. Limit: slower, risk-specific negotiation and no assurance of acceptance.

Example 2

Identify the type of reinsurance in each case: (a) The insurer may cede any risk of a class, but the reinsurer must accept every risk ceded within agreed terms. (b) All marine cargo policies written in the year are ceded automatically to the reinsurer under agreed terms. (c) A reinsurer reviews one specific risk and agrees to take 40% of it.

Show the solution

Case (a): the cedant has an option and the reinsurer is bound, which is facultative obligatory.
Case (b): cession is automatic for a whole class and both sides are bound within terms, which is treaty.
Case (c): a single risk is examined and accepted by choice, which is facultative.

Answer: (a) Facultative obligatory; (b) Treaty; (c) Facultative.

Exam tips

For identification questions, apply the obligation test first: who is free and who is bound.
In descriptive answers, always give both advantages and limits for each method; examiners look for balance.
Link the method to the situation in the case: large or unusual risk points to facultative, steady portfolio points to treaty.
Mention section 34F briefly when the question concerns regulation of reinsurance terms, and state its conditions exactly: terms not favourable to the insurer or detrimental to public interest.

Practice questions from Structure and Type of Re-insurance

Facultative and Treaty Reinsurance: frequently asked questions

What is the main difference between facultative and treaty reinsurance?

Facultative reinsurance is arranged for each risk separately, and the reinsurer can accept or decline. Treaty reinsurance covers a whole class of business automatically under agreed terms, so both parties are bound within the treaty.

What is facultative obligatory reinsurance?

It is a hybrid arrangement. The cedant may choose whether to cede a risk, but the reinsurer must accept any risk that is ceded within the agreed terms. The obligation is one-sided, on the reinsurer.

What are the advantages and disadvantages of treaty reinsurance?

Advantages are automatic cover, lower administrative effort, speed and certainty of capacity. Disadvantages are that the reinsurer depends on the cedant's underwriting, so it sets limits and exclusions, and treaties may not suit very large or unusual risks.

Can the regulator interfere with reinsurance treaties?

Yes. Under section 34F of the Insurance Act, 1938, the Authority can require changes to terms at the next renewal, or non-renewal, if terms are not favourable to the insurer or are detrimental to public interest. It can also require prior furnishing and approval of the terms.