Reinsurance cycle

Category: Capacity and rating · Reviewed by Chrissie Anderson, Client Executive · Last reviewed 2026-06-05

Reinsurance cycle

The reinsurance cycle is the recurrent alternation between soft and hard market conditions in the insurance and reinsurance markets. It is driven by the interaction of underwriting profitability, capital availability and major loss events, and is one of the defining features of the property and casualty insurance industry.

Category: Capacity and rating Also known as: insurance cycle, underwriting cycle Related concepts: soft market, hard market, hardening market, softening market

Definition

The classical reinsurance cycle has four phases:

1. Hard market: capacity is constrained, rates are high, terms are tight, underwriting profitability is strong
2. Softening: profitability attracts capital, new entrants emerge, rates begin to ease
3. Soft market: capacity is abundant, rates are competitive, terms are broad, underwriting margins compress
4. Hardening: accumulated losses or a triggering event (major catastrophe, large adverse reserve development) erodes capital; rates begin to rise

The cycle period historically has varied from 5 to 12 years, although recent cycles in specific classes have been shorter and sharper. The 2022–2023 property catastrophe hardening, for example, was relatively brief by historical standards (around 24 months from initial hardening to softening signs).

Legal / Regulatory basis

The cycle is not regulated as such, but its effects are central to PRA prudential supervision: reserve adequacy in the soft phase, capital adequacy in the hardening phase, and resilience to loss events throughout. Lloyd’s Decile 10 review can be seen as a counter-cyclical discipline addressing the tendency of underwriters to compete away margins in soft conditions.

How it works in practice

For brokers and buyers, the cycle dictates strategy:

• In soft markets, lock in favourable terms with multi-year placements where possible; build broader carrier panels
• In hard markets, anticipate renewal challenges; engage with carriers earlier; present strong risk management evidence; consider alternative structures (captives, ILS) where appropriate

For underwriters and reinsurers, the cycle requires disciplined pricing and reserving: maintaining capital through soft phases, deploying it through hard phases, and avoiding the trap of cycle-extending competition for marginal business.

The Lloyd’s market and global reinsurance markets are particularly cycle-sensitive; the work of the Performance Management Directorate and parallel disciplines at major reinsurers is directed at managing the cycle.

Example

An illustrative example: the global property catastrophe cycle of the early 2020s. Soft conditions through 2017–2021, with rate reductions of 3–8 per cent annually. Hardening began in 2022 following Hurricane Ian (US$50–60bn insured losses) and continued through 2023 with rate rises of 20–50 per cent. Softening began in 2024 as alternative capital re-engaged and underwriting profitability returned.

See also

• /wiki/soft-market/
• /wiki/hard-market/
• /wiki/hardening-market/
• /wiki/softening-market/
• /wiki/combined-ratio/

References

1. PRA Insurance Rulebook — https://www.bankofengland.co.uk/prudential-regulation
2. Lloyd’s Annual Reports — https://www.lloyds.com
3. Aon Reinsurance Market Dynamics — https://www.aon.com

This entry is part of the Apex Insurance Wiki. Last reviewed by Matt Bartlett on 2026-06-05. Next review: 2026-12-05.

Apex Insurance Brokers Limited. Authorised and regulated by the Financial Conduct Authority, FRN 724952. Registered in England and Wales, Companies House 07014570. This entry provides general information about UK insurance concepts and is not regulated advice. Consult your insurance broker on your specific position.