Reinsurance
Reinsurance is the practice by which a primary insurance company (the ceding insurer) transfers a portion of the risks it has underwritten to another insurance entity (the reinsurer), in exchange for a proportionate premium, to protect its own balance sheet against large or catastrophic losses and to enhance its capacity to underwrite large risks beyond its own retention limits.
Reinsurance functioned as insurance for insurers, enabling primary insurers to manage their risk portfolios without excessive concentration of exposure. By ceding a share of premiums and the corresponding share of claims to a reinsurer, a primary insurer reduced the net impact of any single large claim or catastrophic event on its own solvency and profitability. This mechanism was what allowed primary insurers to write large individual risks — such as a Rs 5,000 crore industrial plant, a satellite, or an oil rig — that far exceeded the insurer's prudent net retention.
In India, the reinsurance market was historically dominated by GIC Re (General Insurance Corporation of India), the national reinsurer established under the General Insurance Business (Nationalisation) Act, 1972. GIC Re served as the obligatory reinsurer for all non-life insurers operating in India, who were required to offer an obligatory cession — a mandatory share of every risk written — to GIC Re as per IRDAI's reinsurance regulations. The obligatory cession percentage was revised periodically by IRDAI; it was set at 5% effective from April 2020, reduced from earlier higher levels as market liberalisation proceeded.
IRDAI's Reinsurance Regulations (updated most recently through the IRDAI (Re-insurance) Regulations, 2018 and subsequent amendments) governed the placement of reinsurance by Indian insurers. The regulations specified the order of preference for reinsurance placements: first the obligatory cession to GIC Re, then the Indian reinsurance market (including Indian branches of foreign reinsurers), then Lloyd's and international markets. This hierarchy was designed to maximise domestic reinsurance retention and reduce foreign exchange outflows from insurance premium cessions.
Foreign reinsurers were permitted to establish branches in India (rather than subsidiaries) following regulatory amendments that recognised that the high capital requirements of reinsurance operations were better served through a branch structure. Munich Re, Swiss Re, Hannover Re, Scor, and other global reinsurers established Indian branches over the 2016-2020 period following IRDAI approval, deepening the local market and providing Indian insurers access to international expertise in pricing, accumulation management, and risk engineering.
Reinsurance structures took two primary forms. In proportional (or pro-rata) reinsurance, the ceding insurer and reinsurer shared premiums and claims in a pre-agreed proportion — quota share treaties (a fixed percentage of every risk) and surplus treaties (ceding the amount above the primary insurer's retention for each risk) were the main variants. In non-proportional (or excess-of-loss) reinsurance, the reinsurer paid claims only above a defined threshold (the retention) and up to a defined limit — catastrophe excess-of-loss treaties protected against accumulation of losses from a single event such as a flood or earthquake.
Solvency II-equivalent Indian regulatory requirements — embodied in the IRDAI solvency margin regulations — required insurers to maintain a solvency margin (the excess of admissible assets over assessed liabilities) of not less than 1.5 times the required solvency margin. Effective reinsurance programmes reduced the required solvency margin by transferring risk off the primary insurer's balance sheet, making reinsurance a capital management tool as much as a risk management one for growing insurers seeking to expand their gross written premium without proportionate capital dilution.