Japan’s rapidly aging population is creating a sprawling new target for financial abuse, with older people experiencing cognitive decline controlling assets worth almost half the country’s GDP, Bloomberg reported.

Japanese seniors showing symptoms of cognitive decline now hold about ¥315 trillion ($2 trillion) in liquid assets, a pool projected to rise sharply in coming years, the news outlet said. Economists and industry executives told Bloomberg that many families have no safeguards in place, leaving accounts vulnerable to fraud, coercion and other forms of financial exploitation.

The fraud risk is already visible. Government data show seniors accounted for 65% of Japan’s $462 million in scam losses in 2024, underscoring how cognitive aging can turn routine financial tasks into openings for criminals, according to the report. 

Experts cited by Bloomberg warned that declining judgment can start with missed payments and impulsive spending, then escalate into bad investments or outright theft by scammers.

Financial institutions are responding with controls designed to reduce abuse, but those controls can also freeze wealth in ways that create new economic and legal complications. 

Banks and securities firms are rolling out “family-support” accounts and trust-like structures that allow relatives to co-manage assets when seniors are still capable, while many firms also impose additional guardrails, from purchase limits to full account freezes when clients show signs of impairment.

Lawmakers are reviewing Japan’s adult guardianship law to make it simpler and more flexible, aiming to help families assume legal control over finances when dementia sets in, according to the report. 

The broader warning, Bloomberg said, is global: as “dementia money” swells in aging societies, the same conditions that attract fraudsters in Japan could become a widespread financial-crime vulnerability elsewhere.

Read more at Bloomberg