Japan

Japan Insurance Market Highlights

Market Regulation:

Supervision is provided by the FSA. Axco’s regulatory tracking focuses on the transition to the Economic Value-based Solvency Ratio (ESR), scheduled for March 31, 2026.

Non-Life Market Trends:

Growth is currently led by Cyber and Caregiving insurance; Axco’s data reflects Japan’s demographic shift toward an "ultra-aged" society as a driver for new product innovation.

Distribution Channels:

Professionalised agencies remain the dominant channel; however, Axco analysis confirms that "Direct Shop" walk-in consultations are an emerging trend in 2026.

Key Risks & Outlook:

Low interest rates impact returns; Axco’s risk assessment notes high exposure to seismic risk and a growing reliance on offshore reinsurance to manage legacy books.

Insurance Companies:

Axco Navigator details that there are 80 insurance companies are authorised to write business in Japan, of which 39 operate in non-life classes and 41 in life-classes.

Insurance Statistics:

Axco reports written premiums in 2024 increased by 4.5% to JPY 9,578,436 Mn with Motor the largest class of business, accounting for 54% of premiums. Insurance penetration stands at 1.51%.

Insurance Intelligence

Providing expert analysis, independent market insight and company data on the insurance industry.

Insurance market reports are produced following a country visit with interviews with professionals working in the sector with systematic updates to information throughout the cycle. Covering market developments, macroeconomic factors and comprehensive details of the regulatory environment including relevant taxation as well as market indicators and company statistics.

Axco’s Japan Non-Life Insurance Market Report (P&C) also comprises a detailed analysis of lines of business and sub-classes such as natural hazards, property, construction and machinery breakdown, motor, workers compensation & employers’ liability and liability.

The Life & Benefits Report for Japan includes detail on social security, healthcare, individual life assurance and pensions information as well as market statistics and life company statistics

Key Benefits

• Superior market insights
• Crucial compliance information
• Risk assessment and profitability

What is the Non-Life Insurance market in Japan?

The non-life market comprises 39 locally incorporated insurers and 22 foreign branches. Non-life insurance is also provided by 17 co-operative insurance associations, mainly in the areas of motor, household and personal accident. There are also 122 so-called "small-amount short-term" insurers (SASTI), a restricted class of insurance carrier.

Over 85% of the company market is represented by four insurance groups (Tokio Marine Holdings, MS&AD Insurance Group Holdings, SOMPO Holdings and AIG Japan Holdings).

In the Non-Life (P&C) market, Tokio Marine & Nichido Fire Insurance Co. Ltd. was the market leader, recording JPY 2,741,334.00 million in written premiums and 26.13% market share in 2024. It was followed by Sompo Japan Nipponkoa Insurance Company (JPY 2,518,838.00 million; 24.01% market share) and Mitsui Sumitomo Insurance Co Ltd (JPY 1,924,300.00 million; 18.34% market share).

Among the leading non-life insurers, The Society of Lloyd’s reported the strongest growth, with premiums increasing 137.8% year-on-year. 39 companies are licensed for non-life business. 

Who are the top non-life insurers in Japan?

Source: Axco Navigator, Japan Insurance Market Rankings.

What is the Life Insurance market in Japan?

At the end of December 2025, there were 41 companies listed as being licensed in the market. Nippon Life remains the market leader; Nippon Life also has three active subsidiaries in the market. In fiscal year 2024, there were also 123 small-amount short-term insurers some of which offered life and health insurance. Health policies may be issued by either life or non-life insurers.

In the Life insurance market, Nippon Life Insurance Company was the largest insurer in 2024, generating JPY 4,788,867.00 million in written premiums and holding 13.08% market share. It was followed by Japan Post Insurance Company Ltd (JPY 2,980,574.00 million; 8.14% market share) and Meiji Yasuda Life Insurance Group (JPY 2,757,937.00 million; 7.53% market share).

The fastest-growing major life insurer was Nainaro Life Insurance Company Limited, with premium growth of 61.8% year-on-year. 41 companies are licensed for life business in 2024.

Who are the top life insurers in Japan?

Source: Axco Navigator, Japan Insurance Market Rankings.

Country Information

Japan was opened to the outside world in 1854 by a US expedition led by Commodore Matthew C Perry, ending 300 years in which foreigners were prevented from landing in Japan. In 1859, non-life insurance was introduced to Japan by a foreign company based in Yokohama; twenty years later, the first domestic insurance company, Tokio Marine, was established. Japan has the third-largest non-life market in the world after the US and China, with a total premium volume of JPY 12.19trn and the third-largest life market.

The non-life market consists of 30 locally incorporated insurers and 15 foreign branches, and around 40 co-operative insurance associations. There are also 101 so-called "small-amount short-term" insurers, a restricted class of insurance carrier. The P&C market is divided roughly 75:25 between conventional insurance companies and co-operative insurance associations, which write mainly household business. Some of the market's huge premium volume - particularly in the co-operative sector - is represented by long-term savings-type policies. Despite Japan's advanced industrial economy and high exposure to earthquakes and typhoons, the property account is massively underinsured.