Shigeru Ishiba calls Bitcoin a once-in-a-century opportunity at WebX 2025

Japan’s Prime Minister Shigeru Ishiba took the stage at WebX 2025 in Tokyo on August 25 and told Asia’s largest Web3 conference that Bitcoin and crypto represent a “once-in-a-century opportunity.”

Ishiba didn’t frame digital assets as a speculative playground. He framed them as a potential fix for Japan’s most stubborn economic problems: regional stagnation, an aging workforce, and a population that keeps shrinking.

What Ishiba actually said, and why it matters

The two-day WebX conference, held August 25-26, drew the Web3 world’s attention to Tokyo. Ishiba used his address to argue that Web3 technology could drive social innovation across Japan, particularly in regions struggling to attract young workers and investment.

Ishiba pledged expanded government support for the digital asset ecosystem, tying blockchain adoption to broader economic revitalization.

The prime minister connected his Web3 enthusiasm to concrete policy. Japan is advancing tax reforms slated for 2026 that aim to optimize how crypto assets are taxed, with the goal of creating a regulatory environment that actually attracts innovators rather than driving them to Singapore or Dubai.

That tax piece is crucial. Japan currently taxes crypto gains as miscellaneous income, which can push effective rates above 50% for high earners. A restructured framework could bring those rates closer to the separate taxation applied to traditional financial assets, a change the industry has lobbied for aggressively.

The evolution of Ishiba’s crypto stance

Ishiba took office in September 2024 and inherited a country with a complicated crypto history. Japan was among the first major economies to regulate cryptocurrency exchanges after the Mt. Gox collapse.

As recently as December 2024, Ishiba expressed caution about the idea of Japan holding Bitcoin as a national reserve asset. At the time, the concept was gaining traction globally, with several nations exploring sovereign Bitcoin strategies.

What this means for investors

The 2026 tax reforms are the most tangible thing to watch. If Japan restructures crypto taxation to be more competitive, it could trigger a meaningful influx of institutional capital into the Japanese digital asset market.

Japan has something most competing jurisdictions don’t: deep capital markets, sophisticated financial infrastructure, and a massive domestic investor base that already has familiarity with digital assets.

The skeptic’s case is worth considering. Ishiba’s December 2024 caution on Bitcoin reserves is a reminder that this administration’s crypto enthusiasm has limits. Tax reforms “slated for 2026” means the details are still being worked out.

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