The Liberal Democratic Party chose Sanae Takaichi as leader on 4 Oct 2025 and she will take office on 15 Oct 2025. The Nikkei jumped 4.75 % to 47 734.04 and Bitcoin traded above ¥125 700, a record price in yen. Corporate crypto treasuries and large funds are watching for shifts to tax rules, regulated products and liquidity in Japan.
Takaichi built a pro growth image and markets treat that stance as support for risk assets besides Web3 projects. The immediate market response followed her 4 Oct 2025 victory, with equities and crypto signaling optimism ahead of the cabinet’s start on 15 Oct 2025.
The first expected move is a rewrite of crypto tax law, with the top rate on gains possibly dropping from about 55 % to around 20 % and a three-year loss carryforward. That 20 % level would match stock profits, and writes that the change would keep both talent and capital inside the country. “Loss carryforwards” simply let a taxpayer subtract past losses from future gains for a set period.
Regulatory roadmap and institutional implications
The government and the Financial Services Agency had already started work inside the “New Capitalism” plan. One item under review is to list crypto assets as financial instruments under the Financial Instruments or Exchange Act; that step would let issuers list crypto exchange traded funds and would widen the path for institutional money. Charles d’Haussy told “Takaichi’s election would stimulate crypto sentiment through looser policies as well as regulatory clarity.”
Key dates center on 15 Oct 2025, the expected start of the Takaichi cabinet. A possible flat 20 % tax rate with a three-year loss carryforward is under discussion; markets have already reacted, with the Nikkei up 4.75 % and Bitcoin at a yen high after the vote. On regulation, the review of crypto status under the FIEA outlines a path for ETFs.
The next concrete step is the cabinet lineup, especially the ministers for finance next to Digital Affairs, which will set the pace of change. The date to watch remains 15 Oct 2025.
Japan’s pro growth tilt could reshape crypto taxation, regulation and market structure, but execution risk remains tied to cabinet choices and policy follow-through. Investors and treasuries will watch the 15 Oct 2025 handover to gauge the speed and scope of reforms.
