top of page
Tokyoadvisory
(東京国際会計事務所)
Global Professional in Japan



The 5 Critical Mistakes Foreign Founders Make After Incorporating in Japan
(And How to Avoid Costly Tax Problems) Every year, many foreign entrepreneurs successfully incorporate a company in Japan. They receive their Certificate of Registered Matters , celebrate the new business, and believe the difficult part is over. In reality, incorporation is only the beginning . The most serious compliance mistakes often happen after the company is registered . Missing just a few required notifications can lead to: • Tax penalties• Loss of valuable tax benefit
Mamiko Yamamoto
Mar 215 min read


Japan's Cryptocurrency Tax Revolution2026
What Foreign Investors Need to Know Historic Shift from Aggregate to Separate Taxation - But Only for "Specified Cryptocurrencies" ⚠️ CRITICAL WARNING FOR ALL INVESTORS The new separate taxation system has a major hidden cost AND significant limitations: The Hidden Cost: While the tax rate drops from 55% to 20% on profits, crypto losses can NO LONGER offset your salary income. Current System: Crypto loss of ¥2M reduces your overall taxable income → immediate tax savings New
Mamiko Yamamoto
Jan 1816 min read
bottom of page