Family Capital Blog

On family office, wealth structures, and how great fortunes were built

Country: Japan

Asia · 2 posts

The 90% Tax: Japan's One-Time Capital Levy of 1946

From History · Japan · 12 October 2026

In November 1946 Japan taxed private wealth once, at rates up to 90%. How the levy worked, what the zaibatsu families lost, and how it compares with today's 1–5% proposals.

Iba Teigo: The Hired Manager Who Saved Sumitomo, Then Left on Time

From History · Japan · 12 October 2026

A century after his death, the salaried manager who moved Sumitomo's smelter to an island, replanted its mountains, helped found its bank and retired at 58.

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